CN103230839A - Comprehensive recovery production method with gold concentrate flotation and cyanide flotation - Google Patents
Comprehensive recovery production method with gold concentrate flotation and cyanide flotation Download PDFInfo
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- CN103230839A CN103230839A CN2013101818304A CN201310181830A CN103230839A CN 103230839 A CN103230839 A CN 103230839A CN 2013101818304 A CN2013101818304 A CN 2013101818304A CN 201310181830 A CN201310181830 A CN 201310181830A CN 103230839 A CN103230839 A CN 103230839A
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- mine tailing
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Abstract
The invention relates to a comprehensive recovery production method with gold concentrate flotation and cyanide flotation. According to the method, a high copper lead zinc mine of 4% to 6% yields is obtained through gold concentrate flotation, mixed selection and separated selection, a high copper lead concentrate obtained through cyanide leaching is subjected to flotation, the sulfuric acid using amount is reduced to 5% of the original using amount in cyanide leaching residue separation flotation, and the exhaust gas treatment capacity is also reduced to 5% of the original treatment capacity, so that the using amount of dangerous chemicals in production is greatly reduced and the working environment of workers is greatly improved. Meanwhile, the operation cost of auxiliary production facilities is also greatly reduced owing to the reducing of the amount of exhaust gas.
Description
Technical field
The present invention relates to the Gold Concentrate under Normal Pressure flotation and get high copper mine, high-sulfur ore deposit, low-sulfur ore deposit, cyaniding respectively then, high-copper cyanogen slag is the production method of flotation comprehensive recovery of gold argentalium zinc-copper again.Produce main flow process and be " Gold Concentrate under Normal Pressure flotation ", " with float product cyaniding respectively " then, last " flotation again of high-copper cyanogen slag " therefore abbreviates the floating comprehensive production method that reclaims of the floating cyanogen of Gold Concentrate under Normal Pressure as.
Background technology
In the gold smelting industry, generally adopt direct extraction of gold by cyanidation technology, not flotation of tailings, direct operation sulphur ore deposit is sold, and can not get polymetallic comprehensive recovery like this; In addition, adopt direct extraction of gold by cyanidation technology, tailings is direct flotation not, and need add a large amount of sulfuric acid and destroy cyanide, and then flotation.This technology has been brought a lot of hidden danger to operation, has increased danger product consumption, pollutes to environment, has influenced economic benefit of enterprises again.
Summary of the invention
Technical problem to be solved by this invention is: provide the floating cyanogen of a kind of Gold Concentrate under Normal Pressure the floating comprehensive production method that reclaims, productive rate by control separating flotation concentrate, in cyanogen slag separating flotation, only add a small amount of sulfuric acid selecting copper and select in the process of zinc, the sulfuric acid consumption is reduced significantly.
It is as follows that the present invention solves the problems of the technologies described above the technical scheme that adopts:
The floating comprehensive production method that reclaims of the floating cyanogen of a kind of Gold Concentrate under Normal Pressure is characterized in that carrying out according to following steps:
The first step, Gold Concentrate under Normal Pressure flotation: add collecting agent in the Gold Concentrate under Normal Pressure and carry out bulk flotation, obtain low-sulfur mine tailing slurry and mix concentrate slurry, low-sulfur mine tailing slurry is carried out press filtration, the low-sulfur ore deposit that obtains entered for the 3rd step, and mixed concentrate slurry entered into for second step;
Second step, mixed refining-sorting: after the mixed concentrate slurry adjusting concentration of first step gained and pH value, add collecting agent and carry out separating flotation, obtain high-copper lead and zinc concentrate slurry and high-sulfur mine tailing slurry, the high-copper lead and zinc concentrate that floatingly selects slurry is carried out press filtration obtain 4%～6% high copper mine and entered for the 3rd step, the high-sulfur mine tailing slurry that floatingly selects is carried out press filtration obtain the high-sulfur ore deposit and entered for the 3rd step.
The 3rd step, cyaniding respectively: the low-sulfur ore deposit that the first step obtains enters the cyaniding of charcoal slurry, utilizes active carbon to extract gold and silver; The high-sulfur ore deposit that second step obtained enters cyaniding, and your liquid is used for is extracted gold and silver, and high-sulfur low-sulfur cyanogen slag mixes as the relieving haperacidity raw material; The high copper mine that second step obtained enters cyaniding, and your liquid is used for is extracted gold and silver, and high-copper cyanogen slag entered for the 4th step;
The 4th step, choosing lead: high-copper cyanogen slag is sized mixing again to enter into and is selected lead system, and the lead concentrate ore pulp that floatingly selects after the press filtration, obtains lead concentrate and filtrate, and wherein filtrate is returned cyanidation system, and the plumbous mine tailing slurry after the flotation entered into for the 5th step;
The 5th goes on foot, selects zinc: the tail slurry pH behind the lead is selected in adjusting, and the hydrogen cyanide that produces in the process absorbs the back with alkali lye to be recycled, and the zinc concentrate ore pulp that floatingly selects and mine tailing ore pulp carry out press filtration respectively, obtain zinc concentrate and zinc mine tailing; Zinc mine tailing after the press filtration entered for the 6th step, and filtrate is returned cyanidation system;
The 6th goes on foot, selects copper: the mine tailing slurry of the cupric that the 5th step obtained is through press filtration, and joint pulp density and pH value, the hydrogen cyanide that produces in the process absorbs the back with alkali lye to be recycled, and the concentrate slurry that flotation obtains obtains copper concentrate through press filtration, and the mine tailing slurry obtains the sulphur concentrate through press filtration.
Good effect of the present invention is:
At first, according to production method of the present invention, earlier Gold Concentrate under Normal Pressure is carried out bulk flotation before entering cyaniding, and then carry out separating flotation, gold and silver copper-lead zinc is enriched in the separating flotation concentrate as far as possible, the productive rate of separating flotation concentrate has only 4%～6%.Such one is only selecting copper and is selecting in the process of zinc and adding a small amount of sulfuric acid in cyanogen slag separating flotation; the sulfuric acid consumption is reduced to original 2.5%; the exhaust-gas treatment amount that produces also is reduced to original 2.5%; greatly reduce dangerization product consumption aborning, and improved workman's operating environment greatly.The minimizing of exhausted air quantity has simultaneously also reduced the input of the operating cost of supplement production facility significantly.
Secondly, adopt method of the present invention, improved the selected grade of dividing smart cyanogen slag separating flotation, reduced selected operation number of times.Three, adopt method of the present invention, improved the rate of recovery of gold and silver, guaranteed polymetallic comprehensive recovery.
The specific embodiment
Further specify the present invention below in conjunction with example.
The first step, Gold Concentrate under Normal Pressure flotation: concentration is 15%～20%, mog-400 order accounts for 90%～92% Gold Concentrate under Normal Pressure, and pH value is adjusted to 7～8, adds collecting agent and carries out bulk flotation, obtains low-sulfur mine tailing slurry and mixes concentrate slurry; Low-sulfur mine tailing slurry is carried out press filtration, and the low-sulfur ore deposit that obtains entered for the 3rd step, and filtrate turns back to the floating system of mill; Mixed concentrate slurry is sized mixing without press filtration and was directly entered into for second step.
Second step, mixed refining-sorting: it is 15%～20% that the mixed concentrate slurry of first step gained is adjusted to concentration, pH value 7～8, add collecting agent and carry out separating flotation, obtain high-copper lead and zinc concentrate slurry and high-sulfur mine tailing slurry, the high-copper lead and zinc concentrate that floatingly selects slurry is carried out press filtration obtain 4%～6% high copper mine and entered for the 3rd step, the high-sulfur mine tailing slurry that floatingly selects is carried out press filtration obtain the high-sulfur ore deposit and entered for the 3rd step.
The 3rd step, cyaniding respectively: the low-sulfur ore deposit that the first step obtains enters the cyaniding of charcoal slurry, keeps in cyanogen root concentration 0.2%～0.3% scope, utilizes active carbon to extract gold and silver.
The high-sulfur ore deposit that second step obtained enters cyaniding, keeps cyanogen root concentration 0.4%～0.5%, and your liquid is used for extracting gold and silver, and high-sulfur low-sulfur cyanogen slag mixes as the use of relieving haperacidity raw material or sells.
The high copper mine that second step obtained enters cyaniding, keeps cyanogen root concentration 0.8%～0.9%, and your liquid is used for is extracted gold and silver, and high-copper cyanogen slag entered for the 4th step.
The 4th step, choosing lead: high-copper cyanogen slag is sized mixing again to enter into and is selected lead system, pulp density 38%～40%, pH value 10～11, the lead concentrate ore pulp that floatingly selects after the press filtration, obtains lead concentrate and filtrate, wherein filtrate is returned cyanidation system, and the plumbous mine tailing slurry after the flotation entered into for the 5th step.
The 5th step, select zinc: transfer the mine tailing that selects behind the lead to starch to pH value 9.0～9.5 with sulfuric acid earlier, the hydrogen cyanide that produces in the process absorbs the back recycling with alkali lye, and the zinc concentrate ore pulp that floatingly selects and mine tailing ore pulp carry out press filtration respectively, obtain zinc concentrate and zinc mine tailing; Zinc mine tailing after the press filtration entered for the 6th step, and filtrate is returned cyanidation system.
The 6th goes on foot, selects copper: the mine tailing slurry of the cupric that the 5th step obtained is through press filtration, and size mixing to concentration 30%～35%, add sulfuric acid and transfer pH8.0～8.5, the hydrogen cyanide that produces in the process absorbs the back with alkali lye and recycles, the concentrate slurry that flotation obtains obtains copper concentrate through press filtration and sells, and the mine tailing slurry obtains the sulphur concentrate through press filtration and sells.
In second step, the high-copper lead and zinc concentrate slurry that floatingly selects is carried out press filtration obtain 4%～6% high copper mine, wherein 4%～6% radix is the total amount of Gold Concentrate under Normal Pressure before the flotation.
The said percentage of the present invention is mass percent.
Claims (1)
1. the floating cyanogen of Gold Concentrate under Normal Pressure floats the comprehensive production method that reclaims, and it is characterized in that carrying out according to following steps:
The first step, Gold Concentrate under Normal Pressure flotation: add collecting agent in the Gold Concentrate under Normal Pressure and carry out bulk flotation, obtain low-sulfur mine tailing slurry and mix concentrate slurry, low-sulfur mine tailing slurry is carried out press filtration, the low-sulfur ore deposit that obtains entered for the 3rd step, and mixed concentrate slurry entered into for second step;
Second step, mixed refining-sorting: after the mixed concentrate slurry adjusting concentration of first step gained and pH value, add collecting agent and carry out separating flotation, obtain high-copper lead and zinc concentrate slurry and high-sulfur mine tailing slurry, the high-copper lead and zinc concentrate that floatingly selects slurry is carried out press filtration obtain 4%～6% high copper mine and entered for the 3rd step, the high-sulfur mine tailing slurry that floatingly selects is carried out press filtration obtain the high-sulfur ore deposit and entered for the 3rd step;
The 3rd step, cyaniding respectively: the low-sulfur ore deposit that the first step obtains enters the cyaniding of charcoal slurry, utilizes active carbon to extract gold and silver; The high-sulfur ore deposit that second step obtained enters cyaniding, and your liquid is used for is extracted gold and silver, and high-sulfur low-sulfur cyanogen slag mixes as the relieving haperacidity raw material; The high copper mine that second step obtained enters cyaniding, and your liquid is used for is extracted gold and silver, and high-copper cyanogen slag entered for the 4th step;
The 4th step, choosing lead: high-copper cyanogen slag is sized mixing again to enter into and is selected lead system, and the lead concentrate ore pulp that floatingly selects after the press filtration, obtains lead concentrate and filtrate, and wherein filtrate is returned cyanidation system, and the plumbous mine tailing slurry after the flotation entered into for the 5th step;
The 5th goes on foot, selects zinc: the tail slurry pH behind the lead is selected in adjusting, and the hydrogen cyanide that produces in the process absorbs the back with alkali lye to be recycled, and the zinc concentrate ore pulp that floatingly selects and mine tailing ore pulp carry out press filtration respectively, obtain zinc concentrate and zinc mine tailing; Zinc mine tailing after the press filtration entered for the 6th step, and filtrate is returned cyanidation system;
The 6th goes on foot, selects copper: the mine tailing slurry of the cupric that the 5th step obtained is through press filtration, and joint pulp density and pH value, the hydrogen cyanide that produces in the process absorbs the back with alkali lye to be recycled, and the concentrate slurry that flotation obtains obtains copper concentrate through press filtration, and the mine tailing slurry obtains the sulphur concentrate through press filtration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013101818304A CN103230839A (en) | 2013-05-17 | 2013-05-17 | Comprehensive recovery production method with gold concentrate flotation and cyanide flotation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101818304A CN103230839A (en) | 2013-05-17 | 2013-05-17 | Comprehensive recovery production method with gold concentrate flotation and cyanide flotation |
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| CN103230839A true CN103230839A (en) | 2013-08-07 |
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| CN2013101818304A Pending CN103230839A (en) | 2013-05-17 | 2013-05-17 | Comprehensive recovery production method with gold concentrate flotation and cyanide flotation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073645A (en) * | 2014-06-30 | 2014-10-01 | 东北大学 | Method for floatation-recovering valuable metals in superfine cyanided tailings by using high-cyanogen backwater |
| CN105170309A (en) * | 2015-10-12 | 2015-12-23 | 长春黄金研究院 | Lead and zinc separation method for polymetal gold-bearing ores |
| CN111647750A (en) * | 2020-06-16 | 2020-09-11 | 江西一元再生资源有限公司 | Resource utilization method of tailings |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1062819A (en) * | 1976-12-07 | 1979-09-18 | Stephen J. Thorndyke | Flotation separation of copper and nickel sulfides |
| CN102441497A (en) * | 2011-10-24 | 2012-05-09 | 山东黄金矿业(莱州)有限公司精炼厂 | High lead, zinc, copper and gold concentrate direct cyanidation and comprehensive recovery production method |
-
2013
- 2013-05-17 CN CN2013101818304A patent/CN103230839A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1062819A (en) * | 1976-12-07 | 1979-09-18 | Stephen J. Thorndyke | Flotation separation of copper and nickel sulfides |
| CN102441497A (en) * | 2011-10-24 | 2012-05-09 | 山东黄金矿业(莱州)有限公司精炼厂 | High lead, zinc, copper and gold concentrate direct cyanidation and comprehensive recovery production method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073645A (en) * | 2014-06-30 | 2014-10-01 | 东北大学 | Method for floatation-recovering valuable metals in superfine cyanided tailings by using high-cyanogen backwater |
| CN105170309A (en) * | 2015-10-12 | 2015-12-23 | 长春黄金研究院 | Lead and zinc separation method for polymetal gold-bearing ores |
| CN111647750A (en) * | 2020-06-16 | 2020-09-11 | 江西一元再生资源有限公司 | Resource utilization method of tailings |
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Application publication date: 20130807 |