CN105107637A - Method for preparing collecting agent for recycling sulphide ores from tailings - Google Patents
Method for preparing collecting agent for recycling sulphide ores from tailings Download PDFInfo
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- CN105107637A CN105107637A CN201510638173.0A CN201510638173A CN105107637A CN 105107637 A CN105107637 A CN 105107637A CN 201510638173 A CN201510638173 A CN 201510638173A CN 105107637 A CN105107637 A CN 105107637A
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Abstract
The invention provides a method for preparing a collecting agent for recycling sulphide ores from tailings. The method includes the following steps that firstly, phosphonolipid, sodium hydroxide and water are weighed according to the mass ratio of 1-2 to 2-5 to 4-10, mixed and stirred to be dissolved, and a solution (1) is obtained; secondly, fatty alcohol containing 6-7 C is added to the solution (1) according to the mass ratio of 1-2 to 2-7 and stirred to be dissolved, and a solution (2) is obtained; thirdly, the solution (2) is placed in a high-pressure reaction kettle, a reaction is conducted at the pressure of 4-5Mpa and the temperature of 300 DEG C-450 DEG C for 4-5 hours, and sticky liquid with a special smell is obtained, namely the collecting agent for recycling sulphide ores from tailing is obtained. The collecting agent prepared through the method can collect sulphide ores from tailings, is dissolved in water easily and has good selectivity and low temperature performance. Chemical consumption is less.
Description
One, technical field
The present invention relates to the choosing of a kind of sulphide ore floating collecting agent, specifically a kind of preparation method for reclaiming sulfide mineral collector in mine tailing, collecting agent is floated in the choosing being applicable to the sulphide ore storing up partial surface oxidation in mine tailing for a long time.
Two, background technology
In the Tailings Dam of some complex multi-metal sulphide ores, the normal sulfide mineral containing certain values, these sulfide minerals are in ore dressing process at that time, due to polymetallic synthetical recovery will be considered, the restriction of technique of preparing level before adding, fail to reclaim in time, be treated as tailing heap in Tailings Dam.Owing to storing up for a long time, these sulphide ore surfaces more or less form oxide-film, if again reclaim this part sulfide mineral, more difficult.Domestic and international is at present all generally adopt sulfuric acid or copper sulphate first to activate to these sulphide ores, then add Long carbon chain xanthate and carry out flotation collecting, the flotation recovery rate of sulphide ore is between 60 ~ 65%, collecting effect is not satisfactory, particularly for the mineral that surface oxidation is more serious, a large amount of sulfuric acid must be added or copper sulphate activates sulfide mineral, and then carry out collecting.However, still there are partial vulcanization mineral to fail to reclaim, do not reach the object of open pit mining.How to reclaim this part sulfide mineral as far as possible, improve the problem that its rate of recovery current Ze Shi ore dressing circle is paid close attention to.
Three, summary of the invention
The object of the present invention is to provide a kind of preparation method for reclaiming sulfide mineral collector in mine tailing, the flotation that it can realize sulphide ore in mine tailing under the condition adding a small amount of copper sulphate for activation is reclaimed.
The present invention realizes above-mentioned purpose by the following technical solutions: a kind of preparation method for reclaiming sulfide mineral collector in mine tailing, comprises the steps:
First in mass ratio phosphoric acid ester is taken: NaOH: water=1 ~ 2:2 ~ 5:4 ~ 10 mix, be stirred to and dissolve to obtain solution 1, then the fatty alcohol containing 6 ~ 7 C is added in solution 1 in 1 ~ 2:2 ~ 7 in mass ratio, be stirred to and dissolve to obtain solution 2, being placed in autoclave by solution 2, is 4 ~ 5Mpa at pressure, and temperature is react 4 ~ 5h under 300 ~ 450 DEG C of conditions, obtaining a kind of thick liquid with special odor, being the collecting agent for reclaiming sulphide ore in mine tailing.
Described collecting agent is reclaiming the application of sulphide ore in mine tailing, and raw mineral materials is sulfuration Pb-Zn tailings, and in mine tailing, plumbous grade is 0.33% ~ 0.53%, antimony grade 0.26%, zinc grade 1.02% ~ 1.14%, sulphur grade 5.65% ~ 6.33%, material phase analysis shows, lead minerals is mainly based on galena, a small amount of cerussite, bournonite and jamesonite, zinc is based on zincblende, a small amount of marmatite, smithsonite and smithsonite, in raw material, Lead oxidation rate is 34.64%, zinc oxygenation efficiency 27.17%, or raw mineral materials is tin plumbous antimony zinc mine tailing, in mine tailing, plumbous grade is 0.33%, antimony grade 0.26%, zinc grade 1.14%, sulphur grade 6.33%, tin grade 0.24%, material phase analysis shows, tin is based on cassiterite, plumbous antimony mineral is mainly based on jamesonite, a small amount of cerussite, bournonite and galena, zinc is based on marmatite, a small amount of zincblende, smithsonite and smithsonite, in raw material, Lead oxidation rate is 35.53%, zinc oxygenation efficiency 26.80%.
Regime of agent and operating condition are:
Adopt one roughing, scan for three times, the flotation flowsheet of recleaning.
During flotation, after mine tailing being added agitator dispersed with stirring, regulate slurry pH to 6 ~ 6.5, in floatation process, mine tailing is added agitator dispersed with stirring, then add copper sulphate for activation agent 150g/t, then add described sulfide mineral collector, finally add 2# oil 100g/t again and make foaming agent collecting is carried out to sulphide ore in mine tailing.
The total consumption of described collecting agent is: 120 ~ 140g/t.
Concrete advantage of the present invention is:
1, adopt the collecting agent that is prepared into of the present invention can sulphide ore in collecting mine tailing, soluble in water, and there is good selective and resistance to low temperature.
2, dosing is few.
Detailed description of the invention
Below by way of specific embodiment, technical scheme of the present invention is further described.
Embodiment 1
The present embodiment is a kind of preparation method for reclaiming sulfide mineral collector in mine tailing, comprises the steps:
First in mass ratio phosphoric acid ester is taken: NaOH: water=1:2:4 mixing, be stirred to and dissolve to obtain solution 1, then by n-hexyl alcohol in mass ratio 1:2 add in solution 1, be stirred to and dissolve to obtain solution 2, then being placed in autoclave by solution 2, is 4Mpa at pressure, and temperature is react 4h under 300 DEG C of conditions, obtaining a kind of thick liquid with special odor, being the collecting agent for reclaiming sulphide ore in mine tailing.
Embodiment 2
The present embodiment is a kind of another preparation method for reclaiming sulfide mineral collector in mine tailing, comprises the steps:
First in mass ratio phosphoric acid ester is taken: NaOH: water=2:5:10 mixing, be stirred to and dissolve to obtain solution 1, then by n-heptanol in mass ratio 2:7 add in solution 1, be stirred to and dissolve to obtain solution 2, then being placed in autoclave by solution 2, is 5Mpa at pressure, and temperature is react 5h under 450 DEG C of conditions, obtaining a kind of thick liquid with special odor, being the collecting agent for reclaiming sulphide ore in mine tailing.
Embodiment 3
The present embodiment is that the collecting agent that is prepared into of embodiment 1 is for reclaiming the application example of the sulphide ore in mine tailing.
1, raw mineral materials
Raw mineral materials is sulfuration Pb-Zn tailings, and in mine tailing, plumbous grade is 0.53%, zinc grade 1.02%, sulphur grade 5.65%; Material phase analysis shows, lead minerals mainly based on galena, a small amount of cerussite, bournonite and jamesonite, zinc based on zincblende, a small amount of marmatite, smithsonite and smithsonite.In raw material, Lead oxidation rate is 34.64%, and zinc oxygenation efficiency reaches 27.17%.
2, flotation flowsheet: one roughing, scan for three times, recleaning.
3, regime of agent and operating condition:
During flotation, after mine tailing being added agitator dispersed with stirring, after regulating slurry pH to 6 ~ 6.5, then add copper sulphate 150g/t and make activator, adding described for reclaiming the sulfide mineral collector 120g/t in mine tailing again, finally adding 2# oil 100g/t again and making foaming agent collecting is carried out to sulphide ore in mine tailing.
4, floatation indicators
Lead recovery reaches 87.57%, and zinc recovery reaches 85.61%, and sulfur recovery rate reaches 86.04%.
Embodiment 4
The present embodiment is the application example for sulfide mineral collector in mine tailing adopting embodiment 2 to be prepared into.
1, raw mineral materials
Raw mineral materials is tin plumbous antimony zinc mine tailing, and in mine tailing, plumbous grade is 0.33%, antimony grade 0.26%, zinc grade 1.14%, sulphur grade 6.33%, tin grade 0.24%; Material phase analysis shows, tin based on cassiterite, plumbous antimony mineral mainly based on jamesonite, a small amount of cerussite, bournonite and galena, zinc based on marmatite, a small amount of zincblende, smithsonite and smithsonite.In raw material, Lead oxidation rate is 35.53%, and zinc oxygenation efficiency reaches 26.80%.
2, flotation flowsheet: one roughing, scan for three times, recleaning.
3, regime of agent and operating condition:
During flotation, after mine tailing being added agitator dispersed with stirring, after regulating slurry pH to 6 ~ 6.5, then add copper sulphate 150g/t and make activator, adding described for reclaiming the sulfide mineral collector 140g/t in mine tailing again, finally adding 2# oil 100g/t again and making foaming agent collecting is carried out to sulphide ore in mine tailing.
4, floatation indicators
Lead recovery reaches 89.73%, antimony recovery 88.50%, and zinc recovery reaches 83.71%, and sulfur recovery rate reaches 85.92%.
Claims (2)
1. for reclaiming a preparation method for sulfide mineral collector in mine tailing, it is characterized in that, the method comprises the steps:
First in mass ratio phosphoric acid ester is taken: NaOH: water=1 ~ 2:2 ~ 5:4 ~ 10 mix, be stirred to and dissolve to obtain solution 1, then the fatty alcohol containing 6 ~ 7 C is added in solution 1 in 1 ~ 2:2 ~ 7 in mass ratio, be stirred to and dissolve to obtain solution 2, being placed in autoclave by solution 2, is 4 ~ 5Mpa at pressure, and temperature is react 4 ~ 5h under 300 ~ 450 DEG C of conditions, obtaining a kind of thick liquid with special odor, being the collecting agent for reclaiming sulphide ore in mine tailing.
2. the application of sulfide mineral collector that is prepared into of claim 1, it is characterized in that, raw mineral materials used is sulfuration Pb-Zn tailings, in mine tailing, plumbous grade is 0.33% ~ 0.53%, antimony grade 0.26%, zinc grade 1.02% ~ 1.14%, sulphur grade 5.65% ~ 6.33%, material phase analysis shows, lead minerals is mainly based on galena, a small amount of cerussite, bournonite and jamesonite, zinc is based on zincblende, a small amount of marmatite, smithsonite and smithsonite, in raw material, Lead oxidation rate is 34.64%, zinc oxygenation efficiency 27.17%, or raw mineral materials is tin plumbous antimony zinc mine tailing, in mine tailing, plumbous grade is 0.33%, antimony grade 0.26%, zinc grade 1.14%, sulphur grade 6.33%, tin grade 0.24%, material phase analysis shows, tin is based on cassiterite, plumbous antimony mineral is mainly based on jamesonite, a small amount of cerussite, bournonite and galena, zinc is based on marmatite, a small amount of zincblende, smithsonite and smithsonite, in raw material, Lead oxidation rate is 35.53%, zinc oxygenation efficiency 26.80%,
Regime of agent and operating condition are:
Adopt one roughing, scan for three times, the flotation flowsheet of recleaning,
During flotation, after mine tailing being added agitator dispersed with stirring, regulate slurry pH to 6 ~ 6.5, in floatation process, mine tailing is added agitator dispersed with stirring, then add copper sulphate for activation agent 150g/t, then add described sulfide mineral collector, the last 2# oil 100g/t that adds again makes foaming agent and carries out collecting to sulphide ore in mine tailing
The total consumption of described collecting agent is: 120 ~ 140g/t.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510638173.0A CN105107637A (en) | 2015-09-30 | 2015-09-30 | Method for preparing collecting agent for recycling sulphide ores from tailings |
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| CN201510638173.0A CN105107637A (en) | 2015-09-30 | 2015-09-30 | Method for preparing collecting agent for recycling sulphide ores from tailings |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753485A (en) * | 2010-02-16 | 2012-10-24 | 纳尔科公司 | Sulfide flotation aid |
| CN103923119A (en) * | 2014-04-28 | 2014-07-16 | 中蓝连海设计研究院 | Preparation method and applications of alkyl phosphite |
| CN104437888A (en) * | 2014-11-21 | 2015-03-25 | 广西大学 | Method for preparing zinc-sulfur mineral depressor |
| CN104549765A (en) * | 2014-11-21 | 2015-04-29 | 广西大学 | Preparation method for cassiterite mineral collector |
-
2015
- 2015-09-30 CN CN201510638173.0A patent/CN105107637A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102753485A (en) * | 2010-02-16 | 2012-10-24 | 纳尔科公司 | Sulfide flotation aid |
| CN103923119A (en) * | 2014-04-28 | 2014-07-16 | 中蓝连海设计研究院 | Preparation method and applications of alkyl phosphite |
| CN104437888A (en) * | 2014-11-21 | 2015-03-25 | 广西大学 | Method for preparing zinc-sulfur mineral depressor |
| CN104549765A (en) * | 2014-11-21 | 2015-04-29 | 广西大学 | Preparation method for cassiterite mineral collector |
Non-Patent Citations (2)
| Title |
|---|
| 冉隆文: "《精细磷化工技术》", 30 April 2005, 化学工业出版社 * |
| 张泾生,阙煊兰: "《矿用药剂》", 29 November 2008, 冶金工业出版社 * |
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