CN104741241A - Flotation backwater utilization process of copper-sulfur or copper nickel sulfide ore in water-deficient area - Google Patents
Flotation backwater utilization process of copper-sulfur or copper nickel sulfide ore in water-deficient area Download PDFInfo
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- CN104741241A CN104741241A CN201310728036.7A CN201310728036A CN104741241A CN 104741241 A CN104741241 A CN 104741241A CN 201310728036 A CN201310728036 A CN 201310728036A CN 104741241 A CN104741241 A CN 104741241A
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Abstract
The invention discloses a flotation backwater utilization process of a copper-sulfur or copper nickel sulfide ore in a water-deficient area, wherein the flotation is differential flotation; copper is copper pyrite, covellite and chalcocite; a zinc mineral is sphalerite or marmatite; and nickel is pentlandite. The backwater utilization process comprises the following steps: the dense filter pressing is respectively performed for a selected copper tailing and a copper concentrate; the slurry mixing is performed again after the dense filer pressing of the selected copper tailing to perform the zinc/nickel flotation; and the dense filter pressing is respectively performed for a zinc/nickel concentrate and a final tailing after the selection of zinc/nickel. Backwater obtained by performing the dense filter pressing for the copper tailing and the copper concentrate is returned to grind an ore for the ore grinding, copper roughing and copper selecting operations and the flotation water supplement of the operations; the backwater obtained by performing the dense filter pressing for the zinc/nickel concentrate and the final tailing after the selection of zinc/nickel is returned to a step of returning the backwater to zinc selection/nickel selection for the zinc/nickel roughing and selecting operations and the flotation water supplement of the operations; and a proper amount of clear water can be added in the operation process as required. The process, provided by the invention, can radically solve the water use problem of differential flotation in the water-deficient area.
Description
Technical field
The present invention relates to a kind of water-deficient area copper-zinc or copper-Ni sulphide mine flotation recycling water utilization technique.
Background technology
Diffeential floatation is one of conventional method for floating in multi-metal sulfide mountain.Because multi-metal sulfide diffeential floatation each section of floating agent species differences is larger, Cu in follow-up tailing water
2+concentration, total index such as Organic carbon content (TOC) and pH are generally far above the analog value of ore pulp after fresh water ore grinding, this affects the biggest obstacle that backwater directly returns grinding machine use, copper ion is the most effective activator of all sulfide, and TOC is the leading indicator weighing remaining content of organics height in water, this value is higher, illustrate that xanthate remaining in backwater, No. 2 wet goods organic matters are more, the more difficult requirement meeting diffeential floatation of tailing water.In addition, the pH value of true tailings backwater generally up to about 12, and selects copper operation only to need about 7-8, and also cannot meet copper and roughly select requirement to pH value, therefore tailings recycling water cannot return grinding machine.For water resource than more rich area, tailing water can be arranged outward after process reaches outer row's standard; And for water-deficient area, the recycling water utilization technique inquiring into this type of ore dressing plant seems particularly important.
Summary of the invention
The object of this invention is to provide a kind of water-deficient area copper-zinc or copper-Ni sulphide mine flotation recycling water utilization technique, although adopt this technique to make mill float workshop cost of investment to rise to some extent, but greatly reduce the expenses such as the construction of Tailings Dam, maintenance, management, therefore gross investment and production cost can't obviously increase, and substantially solve water-deficient area diffeential floatation water problem.
For achieving the above object, the present invention is by the following technical solutions:
A kind of water-deficient area copper-zinc or copper-Ni sulphide mine flotation recycling water utilization technique, it comprises the following steps:
1) after raw ore carries out ore grinding, carry out copper and roughly select, obtain copper rougher concentration and copper rougher tailings;
2) copper rougher concentration carries out the selected concentrate of copper selected acquisition copper and copper cleaner tailings; Copper rougher tailings copper carries out copper and scans and obtain copper scavenger concentrate and copper and scan mine tailing, and copper cleaner tailings and copper scavenger concentrate return the 1st) step copper roughly selects operation;
3) step 2) the selected concentrate of copper that obtains carries out dense press filtration and obtains copper concentrate and mineral water, and copper is scanned mine tailing and is carried out dense press filtration and obtain desilting and mineral water, returns ore grinding or copper is roughly selected in operation after being merged by the two mineral water obtained;
4) copper is scanned after desilting that the dense press filtration of mine tailing obtains sizes mixing, and carries out zinc/nickel and roughly selects, obtain zinc/nickel rougher concentration and zinc/nickel rougher tailings;
5) zinc/nickel rougher concentration that step 4) obtains carries out the selected concentrate of selected acquisition zinc/nickel and zinc/nickel cleaner tailings, zinc/nickel rougher tailings carries out scanning acquisition zinc/nickel scavenger concentrate and zinc/nickel scans mine tailing, zinc/nickel cleaner tailings and zinc/nickel scavenger concentrate is merged the zinc/nickel returned in step 4) and roughly selects in operation;
6) the selected concentrate of zinc/nickel obtained in step 5) is carried out dense press filtration and obtain zinc concentrate/nickel ore concentrate and mineral water, zinc/nickel is scanned mine tailing and is carried out dense press filtration and obtain mine tailing and mineral water, the mineral water of the two is merged return in step 4) size mixing and zinc/nickel is roughly selected in operation.
Recycling water utilization technique as above, preferably, described copper is roughly selected, copper is selected, zinc/nickel is roughly selected, supplement clear water in the selected operation of zinc/nickel to reach the pulp density requirement of this operation.
Recycling water utilization technique as above, preferably, described copper-zinc vulcanizing mine refers to containing zincblende or marmatite in ore, and chalcopyrite, covellite, at least one in vitreous copper, and wherein Cu content is 0.2 ~ 1.5wt%, Zn content is 1 ~ 7wt%; Described copper-Ni sulphide mine refers to that wherein Cu content is 0.2 ~ 1.5wt%, Ni content is 0.2 ~ 3wt% containing at least one in pentlandite and chalcopyrite, covellite, vitreous copper in ore.
Beneficial effect of the present invention is: after selected for copper concentrate and copper are scanned the dense press filtration of mine tailing by technique of the present invention, mineral water is back to ore grinding and copper is roughly selected; After selected for zinc/nickel concentrate and zinc/nickel are scanned the dense press filtration of mine tailing mineral water be back to zinc/nickel roughly select before size mixing and zinc/nickel roughly select step.Realization is selected copper process and is selected zinc/select nickel operation independently water circulation separately, overcome diffeential floatation tailing water Cu2+ concentration in prior art, total index such as Organic carbon content (TOC) and pH is too high, be not suitable for the technical problem directly returning grinding machine use, realize recycling of water in copper-zinc or cu-ni sulphide ore floatation process, while saving water resource, reduce the processing cost of mine tailing.
Accompanying drawing explanation
Fig. 1 is the process chart of a kind of preferred embodiment of the present invention.
Detailed description of the invention
Be described further technical scheme of the present invention below by instantiation, these embodiments are not limitation of the present invention, and any equivalent replacement or known change all belong to scope.
Embodiment 1
Loess in Xinjiang slope copper zinc ore, the sulfide mineral of ore is mainly chalcopyrite, zincblende and pyrite; Gangue mineral is mainly feldspar, quartz, calcite, sericite, chlorite, is secondly allochite, actinolite, aspidelite, apatite, clay mineral etc.In ore, copper content is 1.08wt%, and Zn content is 1.47wt%.
Be process chart of the present invention as described in Figure 1, carry out flotation recycling water utilization to above-mentioned Loess in Xinjiang slope copper zinc ore by technique shown in Fig. 1, concrete steps are as follows:
1) after ore carries out ore grinding, carry out copper and roughly select, obtain copper rougher concentration and copper rougher tailings;
2) copper rougher concentration carries out the selected concentrate of copper selected acquisition copper and copper cleaner tailings; Copper rougher tailings copper carries out copper and scans and obtain copper scavenger concentrate and copper and scan mine tailing, and copper cleaner tailings and copper scavenger concentrate return the 1st) step copper roughly selects operation;
3) the selected concentrate of copper that upper step obtains carries out dense press filtration and obtains copper concentrate and mineral water, and copper is scanned mine tailing and carried out dense press filtration acquisition desilting and mineral water, is merged by the two mineral water obtained, Cu in the mineral water of merging
2+concentration is 0.0015mg/L, total Organic carbon content (TOC) for 5.3mg/L, pH be 8.0, mineral water returns copper without the need to other process and roughly selects and recycle with ore grinding; When recycling, roughly select at copper and suitably supplement clear water in selected operation to reach the pulp density requirement of this operation with copper;
4) copper is scanned after desilting that the dense press filtration of mine tailing obtains sizes mixing, and carries out zinc and roughly selects, obtain zinc concentrate and zinc rougher tailings;
5) the zinc rougher concentration that step 4) obtains carries out the selected concentrate of selected acquisition zinc and zinc cleaner tailing, zinc rougher tailings carries out scanning and obtains zinc scavenger concentrate and zinc scans mine tailing, zinc cleaner tailing and zinc scavenger concentrate is merged the zinc returned in step 4) and roughly selects in operation;
6) the selected concentrate of zinc obtained in step 5) is carried out dense press filtration and obtain zinc concentrate concentrate and mineral water, zinc is scanned mine tailing and is carried out dense press filtration acquisition mine tailing and mineral water, is merged by the mineral water of the two, Cu in mineral water
2+concentration is 0.13mg/L, total Organic carbon content (TOC) is 16.8mg/L, pH is 12.2, mineral water the processing returns to step 4 without the need to other) in size mixing and zinc is roughly selected and is recycled, when recycling water utilization, roughly select at zinc and suitably supplement clear water in selected operation to reach the pulp density requirement of this operation with zinc.As above the operation all routinely do not specialized in step is carried out.
As a comparison, carry out clear water flotation and the flotation of diffeential floatation backwater direct reuse, wherein clear water flotation refers at ore grinding and operation use clear water of sizing mixing.
Clear water flotation, the flotation of backwater direct reuse and the flotation results that carries out as shown in Figure 1 are contrasted, the results are shown in Table 1.
Table 1
Embodiment 2
Hami copper nickel, in ore, major metal mineral have chalcopyrite, pentlandite, magnetic iron ore; Gangue mineral mainly contains snake mosquito stone, talcum, and next has olivine, pyroxene, phlogopite, chlorite, a small amount of hornblend, biotite, dolomite, calcite, picotite etc.In ore, copper content is 0.27wt%, and nickel content is 0.38wt%.
By technique shown in Fig. 1, flotation recycling water utilization PROCESS FOR TREATMENT is carried out to above-mentioned copper nickel, specifically carries out as follows by step:
1) after ore carries out ore grinding, carry out copper and roughly select, the copper rougher concentration of acquisition and copper rougher tailings;
2) copper rougher concentration carries out the selected concentrate of copper selected acquisition copper and copper cleaner tailings; Copper rougher tailings copper carries out copper and scans and obtain copper scavenger concentrate and copper and scan mine tailing, and copper cleaner tailings and copper scavenger concentrate return the 1st) step copper roughly selects operation;
3) the selected concentrate of copper that upper step obtains carries out dense press filtration and obtains copper concentrate and mineral water, and copper is scanned mine tailing and carried out dense press filtration acquisition desilting and mineral water, is merged by the two mineral water obtained, Cu in the mineral water of merging
2+concentration is 0.0010mg/L, total Organic carbon content (TOC) for 4.1mg/L, pH be 7.9, mineral water returns copper without the need to other process and roughly selects and recycle with ore grinding; When recycling, roughly select at copper and suitably supplement clear water in selected operation to reach the pulp density requirement of this operation with copper;
4) copper is scanned after desilting that the dense press filtration of mine tailing obtains sizes mixing, and carries out nickel and roughly selects, obtain nickel ore concentrate and nickel rougher tailings;
5) the nickel rougher concentration that step 4) obtains carries out the selected concentrate of selected acquisition nickel and nickel cleaner tailings, nickel rougher tailings carries out scanning and obtains nickel scavenger concentrate and nickel scans mine tailing, nickel cleaner tailings and nickel scavenger concentrate is merged the nickel returned in step 4) and roughly selects in operation;
6) the selected concentrate of nickel obtained in step 5) is carried out dense press filtration and obtain zinc-nickel concentrate concentrate and mineral water, nickel is scanned mine tailing and is carried out dense press filtration acquisition mine tailing and mineral water, is merged by the mineral water of the two, Cu in mineral water
2+concentration is 0.12mg/L, total Organic carbon content (TOC) is 15.3mg/L, pH is 12.3, mineral water the processing returns to step 4 without the need to other) in size mixing and nickel is roughly selected and is recycled, when recycling water utilization, roughly select at nickel and suitably supplement clear water in selected operation to reach the pulp density requirement of this operation with nickel.As above the operation all routinely do not specialized in step is carried out.
As a comparison, carry out clear water flotation and the flotation of diffeential floatation backwater direct reuse, wherein clear water flotation refers at ore grinding and operation use clear water of sizing mixing.
Clear water flotation, the flotation of backwater direct reuse and the flotation results that carries out as shown in Figure 1 are contrasted, the results are shown in Table 2.
Table 2
Claims (3)
1. water-deficient area copper-zinc or copper-Ni sulphide mine flotation recycling water utilization technique, it is characterized in that, it comprises the following steps:
1) after raw ore carries out ore grinding, carry out copper and roughly select, obtain copper rougher concentration and copper rougher tailings;
2) copper rougher concentration carries out the selected concentrate of copper selected acquisition copper and copper cleaner tailings; Copper rougher tailings copper carries out copper and scans and obtain copper scavenger concentrate and copper and scan mine tailing, and copper cleaner tailings and copper scavenger concentrate return the 1st) step copper roughly selects operation;
3) step 2) the selected concentrate of copper that obtains carries out dense press filtration and obtains copper concentrate and mineral water, and copper is scanned mine tailing and is carried out dense press filtration and obtain desilting and mineral water, returns ore grinding or copper is roughly selected in operation after being merged by the two mineral water obtained;
4) copper is scanned after desilting that the dense press filtration of mine tailing obtains sizes mixing, and carries out zinc/nickel and roughly selects, obtain zinc/nickel rougher concentration and zinc/nickel rougher tailings;
5) zinc/nickel rougher concentration that step 4) obtains carries out the selected concentrate of selected acquisition zinc/nickel and zinc/nickel cleaner tailings, zinc/nickel rougher tailings carries out scanning acquisition zinc/nickel scavenger concentrate and zinc/nickel scans mine tailing, zinc/nickel cleaner tailings and zinc/nickel scavenger concentrate is merged the zinc/nickel returned in step 4) and roughly selects in operation;
6) the selected concentrate of zinc/nickel obtained in step 5) is carried out dense press filtration and obtain zinc concentrate/nickel ore concentrate and mineral water, zinc/nickel is scanned mine tailing and is carried out dense press filtration and obtain mine tailing and mineral water, the mineral water of the two is merged return in step 4) size mixing and zinc/nickel is roughly selected in operation.
2. recycling water utilization technique as claimed in claim 1, is characterized in that, described copper is roughly selected, copper is selected, zinc/nickel is roughly selected, supplements clear water to reach the pulp density requirement of this operation in the selected operation of zinc/nickel.
3. recycling water utilization technique as claimed in claim 1 or 2, it is characterized in that, described copper-zinc vulcanizing mine refers to containing zincblende or marmatite in ore, and chalcopyrite, covellite, at least one in vitreous copper, wherein Cu content is 0.2 ~ 1.5wt%, Zn content is 1 ~ 7wt%; Described copper-Ni sulphide mine refers to that wherein Cu content is 0.2 ~ 1.5wt%, Ni content is 0.2 ~ 3wt% containing at least one in pentlandite and chalcopyrite, covellite, vitreous copper in ore.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107282287A (en) * | 2017-08-17 | 2017-10-24 | 长沙有色冶金设计研究院有限公司 | A kind of recycling water utilization method before copper-molybdenum Xuan Chang factories |
| CN113333172A (en) * | 2021-05-13 | 2021-09-03 | 西北矿冶研究院 | Flotation separation method for high-sulfur copper-zinc ore |
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| CN101585017A (en) * | 2009-06-05 | 2009-11-25 | 湖南有色金属研究院 | Ore-selecting method of difficultly-selected copper zinc sulphur ore |
| CN101695684A (en) * | 2009-10-26 | 2010-04-21 | 长沙有色冶金设计研究院 | Backwater utilizing method for ore-dressing of polymetallic ore |
| CN102205264A (en) * | 2010-12-23 | 2011-10-05 | 紫金矿业集团股份有限公司 | Beneficiation method for increasing gold recovery rate of copper-zinc sulfide ore |
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Patent Citations (5)
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| RU2038860C1 (en) * | 1992-08-24 | 1995-07-09 | Уральский научно-исследовательский и проектный институт медной промышленности "УНИПРОМЕДЬ" | Method of selective flotation of sulfide copper-zinc ores |
| CN101428250A (en) * | 2008-12-08 | 2009-05-13 | 杭州建铜集团有限公司 | Copper-zinc separation beneficiation method |
| CN101585017A (en) * | 2009-06-05 | 2009-11-25 | 湖南有色金属研究院 | Ore-selecting method of difficultly-selected copper zinc sulphur ore |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107282287A (en) * | 2017-08-17 | 2017-10-24 | 长沙有色冶金设计研究院有限公司 | A kind of recycling water utilization method before copper-molybdenum Xuan Chang factories |
| CN113333172A (en) * | 2021-05-13 | 2021-09-03 | 西北矿冶研究院 | Flotation separation method for high-sulfur copper-zinc ore |
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Application publication date: 20150701 |