CN101648157B - Beneficiation method of black and white tungsten mineral - Google Patents
Beneficiation method of black and white tungsten mineral Download PDFInfo
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Abstract
The invention relates to a beneficiation method of black and white tungsten mineral.The method is characterized in that: black and white tungsten mineral through sulfide floatation and magnetic separation deferrization is added with sodium hydroxide, sodium carbonate, sodium silicate and sulphated nascent soap for white tungsten roughing, so as to obtain white tungsten rough concentrate and white tungsten rougher tailings; the white tungsten rough concentrate is added with sodium silicate, sodium hydroxide, sodium sulfide and sulphated nascent soap for white tungsten warming cleaning, so as to obtain white tungsten concentrate and white tungsten warming tailings; the white tungsten rougher tailings and the white tungsten warming tailings are mixed for magnetic separation, so as to obtain black tungsten magnetic separation concentrate and black tungsten magnetic separation tailings; the black tungsten magnetic separation concentrate is added with sodium carbonate, sodium silicate, aluminum sulfate, lead nitrate, sodium fluosilicate, benzohydroxamic acid, sulphated nascent soap and karaffin oil for black tungsten flotation, so as to obtain black tungsten concentrate and black tungsten flotation tailings. The method of the invention is simple in recovery technology, steady in process, high in tungsten recovery rate and low in reagent cost, the used beneficiation reagent does not pollute the environment, and tailings water can meet emission requirement. The invention is applicable to black and white tungsten mineral with WO3 content of .15-2.0% and black and white tungsten proportion of 1:9 to 9:1.
Description
Technical field
The present invention relates to a kind of beneficiation method of tungsten mineral.
Background technology
China's tungsten resource is abundant, and reserves and output all account for first place, the world.In the symbiotic ore of scheelite and wolframite, the ratio of scheelite and wolframite is 1: 9～9: 1.Mineral separation scheelite and wolframite are the ore dressing problems of difficulty always from the complex multi-metal ore deposit of the symbiosis such as sulphide ore, magnetic iron ore, wolframite, scheelite, garnet, pyroxene, hornblend, chlorite, fluorite, calcite, quartz, feldspar, mica.
China Patent No. 200410051961.1 discloses the beneficiation method that reclaims the black and white tungsten mineral from the complex multi-metal ore deposit, its method is after low intensity magnetic separation removes iron mineral and sulfide flotation and removes sulfide mineral, mine tailing (black and white tungsten is to the ore deposit) has adopted the bulk flotation of black and white tungsten in neutral medium, obtain black and white tungsten bulk concentrate and contain fluorite tungsten mine tailing.Black and white tungsten bulk concentrate adopts white tungsten heat selected acquisition white tungsten fine ore and white tungsten warming tailings, and white tungsten warming tailings obtains respectively wolframite and thin mud tungsten concentrate through table concentration and tungsten slurry flotation.Although adopt the tungsten recovery rate of the black and white tungsten bulk concentrate of the method acquisition can reach about 80%, but tungsten overall recovery≤72%, because black and white tungsten bulk concentrate is heated when selected at white tungsten, a large amount of waterglass have been added in temperature in greater than 90 ℃ ore pulp, make wolframite be subject to strong inhibition, white tungsten warming tailings wolframite in selected separation process is lower with the recovery rate in ore-dressing of thin mud tungsten concentrate, and the tungsten concentrate grade is lower.
Summary of the invention
The objective of the invention is to propose a kind of to black and white tungsten ore good separation effect, the rate of recovery is high, simple to operate, reagent cost is lower beneficiation method.
Method of the present invention is comprised of following steps successively:
1) white tungsten is roughly selected: 1. roughly select for 1 time: black and white tungsten is to adding NaOH 0～1200 gram/ton in the ore deposit, sodium carbonate 0～2000 restrains/ton, waterglass 200～4200 grams/ton and sulphation oleic acid soap 45～240 grams/ton, stirred 10～15 minutes; 2. 2～3 times selected: selected one add NaOH 0～300 gram/ton and waterglass 80～300 grams/ton, stirred selected two, selected three adding medicines not 2～5 minutes; 3. scan for 2～3 times: add altogether sulphation oleic acid soap 35～160 grams/ton, stirred 5～10 minutes; Obtain white tungsten rough concentrate and white tungsten rougher tailings;
2) white tungsten is heated selected: 1. roughly select for 1 time: white tungsten rough concentrate is heated to 90 ℃, adds waterglass 200～600 grams/ton, and NaOH 0～100 gram/ton, vulcanized sodium 0～500 gram/ton and sulphation oleic acid soap 0～30 gram/ton are incubated 0.5～2 hour; 2. 1～3 time selected: do not add medicament, stirred 2～5 minutes; 3. scan for 1～3 time: do not add medicament, stirred 5～10 minutes, obtain white tungsten fine ore and white tungsten warming tailings;
3) magnetic separation: merge white tungsten rougher tailings and white tungsten warming tailings, roughly selecting magnetic field intensity 0.48～0.90 tesla and scanning under magnetic field intensity 0.60～1.0 tesla, roughly select or roughly select for 1 time with 1 time and scan through 1 time, obtain black tungsten magnetic concentrate and black tungsten magnetic tailing;
4) black tungsten flotation: 1. roughly select for 1 time: in black tungsten magnetic concentrate, add sodium carbonate 0～30 gram/ton, waterglass 300～700 grams/ton, aluminum sulfate 150～250 grams/ton, plumbi nitras 60～250 grams/ton, benzene first hydroximic acid 80～250 grams/ton, sulphation oleic acid soap 10～25 grams/ton and kerosene 0～15 gram/ton stirred 10～18 minutes; 2. 5 times selected: add altogether waterglass 200～400 gram/ton, aluminum sulfate 90～225 grams/ton, prodan 14～25 grams/ton, benzene first hydroximic acid 3～8 grams/ton and sulphation oleic acid soap 1～3 gram/ton, stirred 10～15 minutes; 3. scan for 2～3 times: add altogether benzene first hydroximic acid 47～185 grams/ton and 7～18 grams/ton sulphation oleic acid soap, stirred 10～15 minutes; Obtain wolframite and black tungsten flotation tailing.
Adopt method of the present invention, to containing 0.15～2.0%WO
3, 1: 9～9: 1 black and white tungsten of black and white tungsten ratio is to the ore deposit, obtain white tungsten fine ore and contain 66.00～75.00%WO
3, wolframite contains 28.88～65.00%WO
3, general Wolfram recovery is 72.33～89.00%.
Characteristics of the present invention are: according to the difference of black and white tungsten to the ore deposit floatability, select suitable beneficiation flowsheet, technique is simple, process stabilization, and tungsten recovery rate is high, and reagent cost is low, used beneficiation reagent environmentally safe, tailing water can reach emission request.
Description of drawings
Fig. 1 is that black and white tungsten of the present invention is to the beneficiation flowsheet figure in ore deposit.
The specific embodiment
To contain WO
30.15～2.0%, 1: 9～9: 1 black and white tungsten of black and white tungsten ratio is to the ore deposit, after adopting first white tungsten to roughly select, after obtaining white tungsten rough concentrate and white tungsten rougher tailings, white tungsten rough concentrate obtains white tungsten fine ore and white tungsten warming tailings through the flotation of heating of white tungsten, after white tungsten rougher tailings and white tungsten warming tailings merge, obtain black tungsten magnetic concentrate through magnetic separation, obtain wolframite through black tungsten flotation again.
Embodiment 1
Black and white tungsten contains 0.53%WO to the ore deposit
3Black and white tungsten ratio 3.5: 6.5 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 10 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 3 minutes, carry out 2 times selected, add sulphation oleic acid soap, stir after 7 minutes, carry out 3 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selectedly, and the white tungsten selected regime of agent by table 1 of heating was incubated after 1.0 hours, carried out 1 time and roughly selected, do not add medicament, stir after 3 minutes, carry out 2 times selected, do not add medicament, stir after 6 minutes, carry out 3 times and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merged, the magnetic field intensity of press table 2 obtained to deceive tungsten magnetic concentrate and black tungsten magnetic tailing through the magnetic separation of roughly selecting for 1 time, 1 time is scanned; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 12 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 10 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 12 minutes, carry out 3 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 68.20%WO
3, wolframite contains 49.70%WO
3, tungsten overall recovery 76.90%.
Embodiment 2
Black and white tungsten contains 0.50%WO to the ore deposit
3Black and white tungsten ratio 4: 6 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 13 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 4 minutes, carry out 2 times selected, add sulphation oleic acid soap, stir after 9 minutes, carry out 3 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selectedly, and the white tungsten selected regime of agent by table 1 of heating was incubated after 1.5 hours, carried out 1 time and roughly selected, do not add medicament, stir after 2 minutes, carry out 3 times selected, do not add medicament, stir after 5 minutes, carry out 1 time and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merged, the magnetic field intensity of press table 2 obtained to deceive tungsten magnetic concentrate and black tungsten magnetic tailing through the magnetic separation of roughly selecting for 1 time, 1 time is scanned; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 15 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 12 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 10 minutes, carry out 3 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 74.56%WO
3, wolframite contains 54.70%WO
3, tungsten overall recovery 79.94%.
Embodiment 3
Black and white tungsten contains 0.26%WO to the ore deposit
3Black and white tungsten ratio 1.5: 8.5 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 15 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 5 minutes, carry out 3 times selected, add sulphation oleic acid soap, stir after 10 minutes, carry out 2 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selectedly, and the white tungsten selected regime of agent by table 1 of heating was incubated after 1.5 hours, carried out 1 time and roughly selected, do not add medicament, stir after 5 minutes, carry out 2 times selected, do not add medicament, stir after 8 minutes, carry out 3 times and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merged, the magnetic field intensity of press table 2 obtained to deceive tungsten magnetic concentrate and black tungsten magnetic tailing through the magnetic separation of roughly selecting for 1 time, 1 time is scanned; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 10 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 10 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 8 minutes, carry out 2 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 74.57%WO
3, wolframite contains 28.88%WO
3, tungsten overall recovery 77.72%.
Embodiment 4
Black and white tungsten contains 0.53%WO to the ore deposit
3Black and white tungsten ratio 5: 5 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 15 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 5 minutes, carry out 2 times selected, add sulphation oleic acid soap, stir after 6 minutes, carry out 3 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selected, the white tungsten selected regime of agent by table 1 of heating, be incubated after 0.5 hour, carry out 1 time and roughly select, do not add medicament, stir after 4 minutes, carry out 2 times selected, do not add medicament, stir after 10 minutes, carry out 3 times and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merge, the magnetic field intensity of press table 2, the magnetic separation through roughly selecting for 1 time obtains to deceive tungsten magnetic concentrate and black tungsten magnetic tailing; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 18 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 15 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 10 minutes, carry out 3 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 67.00%WO
3, wolframite contains 45.20%WO
3, tungsten overall recovery 73.68%.
Embodiment 5
Black and white tungsten contains 1.50%WO to the ore deposit
3Black and white tungsten ratio 9: 1 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 13 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 2 minutes, carry out 3 times selected, add sulphation oleic acid soap, stir after 5 minutes, carry out 3 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selected, the white tungsten selected regime of agent by table 1 of heating, be incubated after 2.0 hours, carry out 1 time and roughly select, do not add medicament, stir after 5 minutes, carry out 3 times selected, do not add medicament, stir after 10 minutes, carry out 3 times and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merged, the magnetic field intensity of press table 2 obtained to deceive tungsten magnetic concentrate and black tungsten magnetic tailing through the magnetic separation of roughly selecting for 1 time, 1 time is scanned; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 18 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 15 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 10 minutes, carry out 3 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 73.50%WO
3, wolframite contains 65.00%WO
3, tungsten overall recovery 83.88%.
Embodiment 6
Black and white tungsten contains 0.82%WO to the ore deposit
3Black and white tungsten ratio 1: 9 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 10 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 5 minutes, carry out 2 times selected, add sulphation oleic acid soap, stir after 10 minutes, carry out 2 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selectedly, and the white tungsten selected regime of agent by table 1 of heating was incubated after 1.0 hours, carried out 1 time and roughly selected, do not add medicament, stir after 5 minutes, carry out 2 times selected, do not add medicament, stir after 8 minutes, carry out 3 times and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merged, the magnetic field intensity of press table 2 obtained to deceive tungsten magnetic concentrate and black tungsten magnetic tailing through the magnetic separation of roughly selecting for 1 time, 1 time is scanned; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 10 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 13 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 12 minutes, carry out 2 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 75.00%WO
3%, wolframite contains 31.25%WO
3, tungsten overall recovery 87.12%.
Embodiment 7
Black and white tungsten contains 1.60%WO to the ore deposit
3Black and white tungsten ratio 2: 8 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 10 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 5 minutes, carry out 2 times selected, add sulphation oleic acid soap, stir after 8 minutes, carry out 3 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selectedly, and the white tungsten selected regime of agent by table 1 of heating was incubated after 1.0 hours, carried out 1 time and roughly selected, do not add medicament, stir after 5 minutes, carry out 1 time selected, do not add medicament, stir after 7 minutes, carry out 3 times and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merged, the magnetic field intensity of press table 2 obtained to deceive tungsten magnetic concentrate and black tungsten magnetic tailing through the magnetic separation of roughly selecting for 1 time, 1 time is scanned; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 16 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 13 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 10 minutes, carry out 3 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 68.20%WO
3, wolframite contains 49.70%WO
3, tungsten overall recovery 89.00%.
Embodiment 8
Black and white tungsten contains 0.49%WO to the ore deposit
3Black and white tungsten ratio 1: 9 is carried out first white tungsten and is roughly selected, and the regime of agent that white tungsten is roughly selected by table 1 added adjusting agent sodium carbonate, NaOH, waterglass and the stirring of sulphation oleic acid soap after 14 minutes, carrying out 1 time roughly selects, add NaOH and waterglass, stir after 3 minutes, carry out 3 times selected, add sulphation oleic acid soap, stir after 6 minutes, carry out 2 times and scan, obtain white tungsten rough concentrate and white tungsten rougher tailings; White tungsten rough concentrate carries out white tungsten and heats selectedly, and the white tungsten selected regime of agent by table 1 of heating was incubated after 1.5 hours, carried out 1 time and roughly selected, do not add medicament, stir after 3 minutes, carry out 1 time selected, do not add medicament, stir after 8 minutes, carry out 2 times and scan, obtain white tungsten fine ore and white tungsten warming tailings; After white tungsten rougher tailings and white tungsten warming tailings merged, the magnetic field intensity of press table 2 obtained to deceive tungsten magnetic concentrate and black tungsten magnetic tailing through the magnetic separation of roughly selecting for 1 time, 1 time is scanned; Black tungsten magnetic concentrate is deceived the tungsten flotation, the regime of agent of pressing table 3 adds adjusting agent sodium carbonate, waterglass, aluminum sulfate, plumbi nitras, collecting agent benzene first hydroximic acid and sulphation oleic acid soap and stirs after 18 minutes, carrying out 1 time roughly selects, add prodan, waterglass, aluminum sulfate, interpolation collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 12 minutes, carry out 5 times selected, adding collecting agent benzene first hydroximic acid and sulphation oleic acid soap stirred after 15 minutes, carry out 2 times and scan, obtain wolframite and black tungsten flotation tailing.White tungsten fine ore contains 66.00%WO
3, wolframite contains 30.20%WO
3, tungsten overall recovery 72.33%.
By table 1, table 2, table 3 and as seen from Table 4, to containing 0.15～2.0%WO
3, eight different black and white tungsten ore samples of 1: 9～9: 1 of black and white tungsten ratio, adopt method of the present invention, obtain white tungsten fine ore and contain 66.00～75%WO
3, wolframite contains 28.88～65.00%WO
3, the tungsten overall recovery is 72.33～89.00%.
The present invention is applicable to content 0.15～2.0%WO
3, 1: 9～9: 1 black and white tungsten ore of black and white tungsten ratio.
Claims (1)
1. the beneficiation method of a black and white tungsten mineral is characterized in that being comprised of following steps successively:
1) white tungsten is roughly selected: 1. roughly select for 1 time: black and white tungsten is to adding NaOH 0～1200 gram/ton in the ore deposit, sodium carbonate 0～2000 restrains/ton, waterglass 200～4200 grams/ton and sulphation oleic acid soap 45～240 grams/ton, stirred 10～15 minutes; 2. 2～3 times selected: selected one add NaOH 0～300 gram/ton and waterglass 80～300 grams/ton, stirred selected two, selected three adding medicines not 2～5 minutes; 3. scan for 2～3 times: add altogether sulphation oleic acid soap 35～160 grams/ton, stirred 5～10 minutes; Obtain white tungsten rough concentrate and white tungsten rougher tailings;
2) white tungsten is heated selected: 1. roughly select for 1 time: white tungsten rough concentrate is heated to 90 ℃, adds waterglass 200～600 grams/ton, and NaOH 0～100 gram/ton, vulcanized sodium 0～500 gram/ton and sulphation oleic acid soap 0～30 gram/ton are incubated 0.5～2 hour; 2. 1～3 time selected: do not add medicament, stirred 2～5 minutes; 3. scan for 1～3 time: do not add medicament, stirred 5～10 minutes, obtain white tungsten fine ore and white tungsten warming tailings;
3) magnetic separation: merge white tungsten rougher tailings and white tungsten warming tailings, roughly selecting magnetic field intensity 0.48～0.90 tesla and scanning under magnetic field intensity 0.60～1.0 tesla, roughly select or roughly select for 1 time with 1 time and scan through 1 time, obtain black tungsten magnetic concentrate and black tungsten magnetic tailing;
4) black tungsten flotation: 1. roughly select for 1 time: in black tungsten magnetic concentrate, add sodium carbonate 0～30 gram/ton, waterglass 300～700 grams/ton, aluminum sulfate 150～250 grams/ton, plumbi nitras 60～250 grams/ton, benzene first hydroximic acid 80～250 grams/ton, sulphation oleic acid soap 10～25 grams/ton and kerosene 0～15 gram/ton stirred 10～18 minutes; 2. 5 times selected: add altogether waterglass 200～400 gram/ton, aluminum sulfate 90～225 grams/ton, prodan 14～25 grams/ton, benzene first hydroximic acid 3～8 grams/ton and sulphation oleic acid soap 1～3 gram/ton, stirred 10～15 minutes; 3. scan for 2～3 times: add altogether benzene first hydroximic acid 47～185 grams/ton and 7～18 grams/ton sulphation oleic acid soap, stirred 10～15 minutes; Obtain wolframite and black tungsten flotation tailing.
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| CN110614159A (en) * | 2019-08-20 | 2019-12-27 | 湖南柿竹园有色金属有限责任公司 | Pre-enrichment method before black and white tungsten separation |
| CN110947511A (en) * | 2019-11-22 | 2020-04-03 | 西北矿冶研究院 | Mineral processing process for treating weathered wolframite |
| CN112588449A (en) * | 2020-10-15 | 2021-04-02 | 湖南柿竹园有色金属有限责任公司 | Method for controlling scheelite roughing and heating selection tailing running |
| CN112958274B (en) * | 2021-04-08 | 2023-03-07 | 广东省科学院资源综合利用研究所 | Separation method of black tungsten tin bulk concentrate |
| CN114405686A (en) * | 2021-12-17 | 2022-04-29 | 湖南柿竹园有色金属有限责任公司 | Defoaming method |
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