CN105127008A - Method for preparing stibnite inhibitor - Google Patents
Method for preparing stibnite inhibitor Download PDFInfo
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- CN105127008A CN105127008A CN201510638211.2A CN201510638211A CN105127008A CN 105127008 A CN105127008 A CN 105127008A CN 201510638211 A CN201510638211 A CN 201510638211A CN 105127008 A CN105127008 A CN 105127008A
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- stibnite
- solution
- inhibitor
- mass ratio
- auriferous pyrite
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Abstract
The invention provides a method for preparing a stibnite inhibitor. The method comprises the following steps: (1) mixing zinc sulfate, sodium carbonate, sodium hydroxide and water in a mass ratio of (1-2):(1-2.5):(1-3):(1-4) to obtain a solution 1; (2) adding starch into the solution 1 in a mass ratio of (0.5-0.6):(3-7), stirring until the starch is dissolved to obtain a solution 2; (3) adding sodium sulfite and tanning extract into the solution 2 in a mass ratio of (1-2):(0.1-0.2):(2-5), controlling the temperature of the solution 2 to be 70-75 DEG C, stirring to react, and keeping for 3.5-4 hours to obtain a solution 3; and (4) sucking and filtering the solution 3 to obtain paste, and drying the paste at 60-55 DEG C to obtain the stibnite inhibitor. The inhibitor prepared by adopting the method can be used for inhibiting stibnite, and enables flotation separation of gold-containing pyrite and stibnite to obtain gold concentrate and antimony concentrate.
Description
One, technical field
The present invention relates to a kind of preparation method of stibnite inhibitor, what particularly coexist for auriferous pyrite and stibnite mixes in antimony gold concentrate, need will suppress the preparation method of a kind of inhibitor of stibnite during mixing antimony gold concentrate FLOTATION SEPARATION.
Two, background technology
The auriferous pyrite FLOTATION SEPARATION of stibnite and its association belongs to global problem, due to the restriction of smelting technique level, generally adopt the method for pyrometallurgical smelting both at home and abroad, when the golden antimony concentrate that smelting auriferous pyrite is higher, create a large amount of alkaline residues, tremendous influence is caused to health environment-friendly.In addition, the commercial Application of hydrometallurgy antimony technology is still immature at home, and cost is higher.Because antimony and auriferous pyrite FLOTATION SEPARATION are our times difficult problems, although ore dressing scholar both domestic and external has certain research to this, achieving no breakthrough property progress all the time.If antimony and auriferous pyrite floatation separating technology research work success, antimony, Gold Concentrate under Normal Pressure product quality will be greatly improved, and while smelting cost reduces, the rate of recovery also can have greatly improved, and has huge economic benefit and social benefit.
Three, summary of the invention
The object of the present invention is to provide a kind of preparation method of stibnite inhibitor, the prepared inhibitor obtained can suppress the stibnite in stibnite and auriferous pyrite bulk concentrate, reduces the antimony content in bulk concentrate, obtains Gold Concentrate under Normal Pressure and antimony concentrate.
The present invention achieves the above object by the following technical solutions: a kind of preparation method of stibnite inhibitor, comprises the steps:
(1) will be zinc sulfate in mass ratio: sodium carbonate: NaOH: water=1 ~ 2:1 ~ 2.5:1 ~ 3:1 ~ 4 are mixed to get solution 1;
(2) starch in mass ratio=0.5 ~ 0.6:3 ~ 7 are added in solution 1, be stirred to and dissolve to obtain solution 2;
(3) add in solution 2 by sodium sulfite, tannin extract in mass ratio=1 ~ 2:0.1 ~ 0.2:2 ~ 5, controlling solution 2 temperature is 70 ~ 75 DEG C, and stirring reaction keeps 3.5 ~ 4h to obtain solution 3;
(4) solution 3 suction filtration is obtained dope, dope is dry under 60 ~ 55 DEG C of conditions, namely obtain described stibnite inhibitor.
The application of the stibnite inhibitor prepared in auriferous pyrite and stibnite FLOTATION SEPARATION, during flotation, regulates slurry pH to be 9.5 ~ 10 with NaOH; In floatation process, added water by the bulk concentrate of auriferous pyrite and stibnite after stirring, add described inhibitor and suppress stibnite, and then add activator copper sulphate, collecting agent butyl xanthate carries out collecting to auriferous pyrite,
The total consumption of described inhibitor is: 3000 ~ 4000g/t.
The application of described stibnite inhibitor in auriferous pyrite and stibnite FLOTATION SEPARATION, is characterized in that, during use, described inhibitor is first mixed with the aqueous solution that mass percentage concentration is 5 ~ 10%.
Unless otherwise indicated, percentage of the present invention is mass percent, and each constituent content percentage sum is 100%.
Concrete advantage of the present invention is:
1, the inhibitor adopting the present invention to be prepared into can suppress stibnite, reduces the antimony content in bulk concentrate, obtains Gold Concentrate under Normal Pressure and antimony concentrate.
2, medicament is simple and consumption is few.
Four, detailed description of the invention
Below by way of specific embodiment, technical scheme of the present invention is further described.
Embodiment 1
An example of the preparation method of stibnite inhibitor of the present invention, comprises the following steps:
First will in mass ratio for zinc sulfate: sodium carbonate: NaOH: water=1:1:1:1 is mixed to get solution 1, then by starch in mass ratio=1:6 adds in solution 1, be stirred to dissolve to obtain solution 2; Then by sodium sulfite, tannin extract in mass ratio=1:0.1:2 adds in solution 2, controlling solution 2 temperature is 70 DEG C, and stirring reaction keeps 3.5h to obtain solution 3, and solution 3 suction filtration is obtained dope, finally that dope is dry under 60 DEG C of conditions, namely obtain described stibnite inhibitor.
Embodiment 2
Another example of the preparation method of stibnite inhibitor of the present invention, comprises the following steps:
First will in mass ratio for zinc sulfate: sodium carbonate: NaOH: water 2:2.5:3:4 is mixed to get solution 1, then by starch in mass ratio=0.6:7 adds in solution 1, be stirred to dissolve to obtain solution 2; Then by sodium sulfite, tannin extract in mass ratio=2:0.2:5 adds in solution 2, controlling solution 2 temperature is 75 DEG C, and stirring reaction keeps 4h to obtain solution 3, and solution 3 suction filtration is obtained dope, finally that dope is dry under 65 DEG C of conditions, namely obtain described stibnite inhibitor.
Embodiment 3
The present embodiment is the application example of stibnite inhibitor in auriferous pyrite and stibnite FLOTATION SEPARATION embodiment 1 prepared.
1, raw mineral materials:
Raw mineral materials used is stibnite and auriferous pyrite bulk concentrate, wherein antimony content is 25.62%, arsenic content is 3.98%, sulfur content is 20.50%, gold content is 45.40g/t, show through material phase analysis, mainly exist with stibnite, auriferous pyrite form in bulk concentrate, separately have a small amount of quartz, mica and silico-calcium matter mineral.
2, regime of agent and operating condition: adjust pH values of pulp to 9.5 ~ 10 with NaOH, by inhibitor 3000g/t, activator copper sulphate 100g/t, collecting agent butyl xanthate 100g/t consumption is tested, result shows to adopt above agentia condition can effectively by auriferous pyrite and stibnite FLOTATION SEPARATION, giving under ore deposit antimony content is 25.62%, gold content is 45.40g/t condition, scan for twice and recleaning through one roughing, obtain containing golden 75.30g/t, containing the Gold Concentrate under Normal Pressure of antimony 2.77% with containing antimony 45.67%, antimony concentrate containing golden 22.41g/t.
Embodiment 4
The present embodiment is the Another Application example of stibnite inhibitor in auriferous pyrite and stibnite FLOTATION SEPARATION embodiment 2 prepared.
1, raw mineral materials:
Raw mineral materials used is stibnite and auriferous pyrite bulk concentrate, wherein antimony content is 23.44%, arsenic content is 3.50%, sulfur content is 18.73%, gold content is 48.21g/t, show through material phase analysis, mainly exist with stibnite, auriferous pyrite form in bulk concentrate, separately have a small amount of quartz, mica and silico-calcium matter mineral.
2, regime of agent and operating condition: adjust pH values of pulp to 9.5 ~ 10, by inhibitors 4 000g/t with NaOH, activator copper sulphate 100g/t, collecting agent butyl xanthate 100g/t consumption is tested, result shows to adopt above agentia condition can effectively by auriferous pyrite and stibnite FLOTATION SEPARATION, giving under ore deposit antimony content is 23.44%, gold content is 48.21g/t condition, scan for twice and recleaning through one roughing, obtain containing golden 80.20g/t, containing the Gold Concentrate under Normal Pressure of antimony 2.53% with containing antimony 43.15%, antimony concentrate containing golden 23.55g/t.
Claims (3)
1. a preparation method for stibnite inhibitor, is characterized in that, comprises the steps:
(1) will be zinc sulfate in mass ratio: sodium carbonate: NaOH: water=1 ~ 2: 1 ~ 2.5: 1 ~ 3: 1 ~ 4 are mixed to get solution 1;
(2) starch in mass ratio=0.5 ~ 0.6: 3 ~ 7 is added in solution 1, be stirred to and dissolve to obtain solution 2;
(3) add in solution 2 by sodium sulfite, tannin extract in mass ratio=1 ~ 2: 0.1 ~ 0.2: 2 ~ 5, controlling solution 2 temperature is 70 ~ 75 DEG C, and stirring reaction keeps 3.5 ~ 4h to obtain solution 3;
(4) solution 3 suction filtration is obtained dope, dope is dry under 60 ~ 55 DEG C of conditions, namely obtain described stibnite inhibitor.
2. the application of stibnite inhibitor in auriferous pyrite and stibnite FLOTATION SEPARATION that prepare of claim 1, is characterized in that, during flotation, regulates slurry pH to be 9.5 ~ 10 with NaOH; In floatation process, added water by the bulk concentrate of auriferous pyrite and stibnite after stirring, add described inhibitor and suppress stibnite, and then add activator copper sulphate, collecting agent butyl xanthate carries out collecting to auriferous pyrite,
The total consumption of described inhibitor is: 3000 ~ 4000g/t.
3. the application of stibnite inhibitor according to claim 2 in auriferous pyrite and stibnite FLOTATION SEPARATION, is characterized in that, during use, described inhibitor is first mixed with the aqueous solution that mass percentage concentration is 5 ~ 10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510638211.2A CN105127008A (en) | 2015-09-30 | 2015-09-30 | Method for preparing stibnite inhibitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510638211.2A CN105127008A (en) | 2015-09-30 | 2015-09-30 | Method for preparing stibnite inhibitor |
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| CN105127008A true CN105127008A (en) | 2015-12-09 |
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| CN201510638211.2A Pending CN105127008A (en) | 2015-09-30 | 2015-09-30 | Method for preparing stibnite inhibitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492996A (en) * | 2016-11-02 | 2017-03-15 | 广西大学 | A kind of stibnite and the flotation separation method of realgar |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081364A (en) * | 1976-07-08 | 1978-03-28 | Engelhard Minerals & Chemicals Corporation | Froth flotation method for stibnite |
| CN1554784A (en) * | 2003-12-25 | 2004-12-15 | 浙江大学 | Process for separating antimoney from gold-antimoney ore using wet metallurgical technology |
| CN103203281A (en) * | 2013-04-07 | 2013-07-17 | 株洲市兴民科技有限公司 | Method for gold separation by means of removing antimony |
| CN104741242A (en) * | 2015-03-24 | 2015-07-01 | 新疆星塔矿业有限公司 | Floatation reagent used for separating gold from antimony |
-
2015
- 2015-09-30 CN CN201510638211.2A patent/CN105127008A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4081364A (en) * | 1976-07-08 | 1978-03-28 | Engelhard Minerals & Chemicals Corporation | Froth flotation method for stibnite |
| CN1554784A (en) * | 2003-12-25 | 2004-12-15 | 浙江大学 | Process for separating antimoney from gold-antimoney ore using wet metallurgical technology |
| CN103203281A (en) * | 2013-04-07 | 2013-07-17 | 株洲市兴民科技有限公司 | Method for gold separation by means of removing antimony |
| CN104741242A (en) * | 2015-03-24 | 2015-07-01 | 新疆星塔矿业有限公司 | Floatation reagent used for separating gold from antimony |
Non-Patent Citations (2)
| Title |
|---|
| 孙传尧: "《选矿工程师手册》", 31 March 2015, 冶金工业出版社 * |
| 张锦瑞等: "《提金技术》", 31 August 2013, 冶金工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492996A (en) * | 2016-11-02 | 2017-03-15 | 广西大学 | A kind of stibnite and the flotation separation method of realgar |
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