CN101914686B - Method for floating and recycling gold and silver by lead and silver slag ultrasonic treatment in zinc electrolysis plant - Google Patents
Method for floating and recycling gold and silver by lead and silver slag ultrasonic treatment in zinc electrolysis plant Download PDFInfo
- Publication number
- CN101914686B CN101914686B CN2010101898771A CN201010189877A CN101914686B CN 101914686 B CN101914686 B CN 101914686B CN 2010101898771 A CN2010101898771 A CN 2010101898771A CN 201010189877 A CN201010189877 A CN 201010189877A CN 101914686 B CN101914686 B CN 101914686B
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- China
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- silver
- slag
- plumbous
- colored slag
- lead
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a method for floating and recycling gold and silver by lead and silver slag ultrasonic treatment in a zinc electrolysis plant, which comprises the following steps of: after carrying out slurry blending on lead and silver slag by a slurry blending barrel, feeding the lead and silver slag into an ore loud strong ultrasonic treatment machine for treating; and feeding the lead and silver slag ore slurry treated by the ultrasonic treatment machine into a flotation machine for floating. The method can be used for treating the low-grade lead and silver slag.
Description
Affiliated technical field
The present invention relates to the method that the plumbous silver-colored slag flotation of a kind of electrolytic zinc plant reclaims gold and silver, especially can improve the rate of recovery of gold and silver in the plumbous silver-colored slag.
Background technology
Plumbous silver-colored slag is the waste residue that is produced in process of production by electrolytic zinc plant, and one ton of electrolytic zinc of the every production of electrolytic zinc plant produces the plumbous silver-colored slag of 5%--10%, produces the annual plumbous silver-colored slag that produces 10,000 tons of 100,000 tons of electrolytic zinc plants per year.The whole nation amounts to more than 10 hundred million tons of electrolytic zinc plant electrolytic lead silver slags now, and utilization rate is lower at present, has caused serious environmental pollution.Plumbous silver-colored slag contains lead, zinc, copper and gold and silver noble metal, is equivalent to a huge non-ferrous metal deposit.Electrolytic zinc plant in order to increase the unit interval treating capacity, adds high polymer coagulant polyacrylamide (i.e. No. 3 flocculants), although accelerated sedimentation time and the rate of filtration of plumbous silver-colored slag in process of production in slag removal.But the high polymer coagulant polyacrylamide all adheres to each other lead, copper, gold and silver ore grain and iron, silicon, calcium, magnesium and aluminium impurity in the silver-colored slag of lead, polluted the surface of lead, copper, gold and silver ore grain, having caused the plumbous silver-colored slag of the flotation of employing conventional method, gravity treatment all is that the not high mine tailing of concentrate is low even can't separation results.The high polymer coagulant polyacrylamide needs could decompose under greater than 250 ℃ of temperature for a long time, so plumbous silver-colored slag can only adopt pyrogenic attack at present, namely kiln process is produced oxide powder and zinc.The shortcoming of kiln process is that employing pyrogenic attack energy consumption is higher also needs preroast to dewater, and can only process to contain zinc greater than the plumbous silver-colored slag more than 20%, can't process low-grade lead silver slag, production cost is higher, product is single, and is large to contaminated environment, can't fully utilize to reclaim lead, copper, Jin Heyin.A large amount of still air storages of plumbous silver-colored slag, contaminated environment.
Summary of the invention
Can't process low-grade lead silver slag in order to overcome existing method, environmental contamination reduction the invention provides the silver-colored slag ultrasonic of a kind of lead and processes rear flotation recovery gold and silver method, can process low-grade lead silver slag, and lead, copper, Jin Heyin are reclaimed in comprehensive utilization.
The technical solution adopted for the present invention to solve the technical problems is: adopt mine high-intensity ultrasonic processor to decompose in the plumbous silver-colored slag behind the high polymer coagulant polyacrylamide method of gold and silver in the floatation and recovery of lead silver slag, because the effect of power ultrasonic, the dirt of the plumbous silver-colored slag mineral surfaces in the high-intensity ultrasonic processor is removed rapidly.The microbubble (cavitation nucleus) that is present in the liquid shakes under the effect of sound field, and when acoustic pressure reached certain value, bubble increased rapidly, then closed suddenly, when bubble is closed, produce shock wave, around it, produce thousands of atmospheric pressure, destroy insoluble dirt they are scattered in the ore pulp.The steam type cavitation is destroyed the absorption of dirt and mineral surfaces on the one hand to the direct repeated stock of crud layer, can cause also that on the other hand the destruction of crud layer makes its disengaging.The shock energy of gaseousness bubble is cleaned the surface of solids, and pollution layer is seamed boring in a single day, and bubble can also " pierce " in the crack and shake, and pollution layer is come off.Because the cavitation of power ultrasonic, when solids were adhered to mineral on the surface by the high polymer coagulant polyacrylamide, the polyacrylamide strand was destroyed, and solids break away from.Thereby reach the purpose of decomposing high polymer coagulant polyacrylamide in the plumbous silver-colored slag.After having had unsalted surface, lead, copper, gold and silver in the plumbous silver-colored slag in floatation process, can swim preferably.
Beneficial effect of the present invention is: can process low-grade lead silver slag, production cost is lower, and treating capacity is large, and recovery of gold and silver is higher.
The specific embodiment
Plumbous silver-colored slag is disclosed furnishing 30% concentration ore pulp through sizing mixing, plumbous silver-colored slag ingoing power 10KW after sizing mixing, the mine high-intensity ultrasonic processor of frequency 20KHz decomposes high polymer coagulant polyacrylamide in the plumbous silver-colored slag, high polymer coagulant polyacrylamide time 〉=10 minute in the plumbous silver-colored slag of sonolysis.Mine high-intensity ultrasonic processor decomposes and adds gold and silver collecting agent butylamine black powder 400 grams/ton in the plumbous silver-colored slag in the plumbous silver-colored slag ore pulp behind the high polymer coagulant polyacrylamide, enter the gold and silver in the flotation device floatation and recovery of lead silver slag behind foaming agent methyl isobutyl carbinol (MIBC) 50 grams/ton, flotation pH value: natural PH 4-5.Plumbous silver-colored slag flotation froth concentrate namely is the bulk concentrate of leaded, copper, Jin Heyin.
Claims (4)
1. the method for an electrolytic zinc plant floating and recycling gold and silver by lead and silver slag ultrasonic treatment, the method has following steps:
(1) plumbous silver-colored slag is through mixing cirtern furnishing 30% concentration ore pulp;
(2) the plumbous silver-colored slag after sizing mixing enters mine high-intensity ultrasonic processor and decomposes high polymer coagulant polyacrylamide in the plumbous silver-colored slag;
(3) mine high-intensity ultrasonic processor decomposes and adds gold and silver collecting agent butylamine black powder in the plumbous silver-colored slag in the plumbous silver-colored slag ore pulp behind the high polymer coagulant polyacrylamide, enters the gold and silver in the flotation device floatation and recovery of lead silver slag behind the foaming agent methyl isobutyl carbinol (MIBC);
(4) plumbous silver-colored slag flotation froth concentrate namely is the bulk concentrate of leaded, copper, Jin Heyin.
2. method according to claim 1, it is characterized in that: plumbous silver-colored slag is through mixing cirtern furnishing 30% concentration ore pulp, plumbous silver-colored slag ingoing power 10KW after sizing mixing, the mine high-intensity ultrasonic processor of frequency 20KHz decomposes high polymer coagulant polyacrylamide in the plumbous silver-colored slag, high polymer coagulant polyacrylamide time 〉=10 minute in the plumbous silver-colored slag of sonolysis.
3. method according to claim 1, it is characterized in that: mine high-intensity ultrasonic processor decomposes and adds gold and silver collecting agent butylamine black powder 400 grams/ton in the plumbous silver-colored slag in the plumbous silver-colored slag ore pulp behind the high polymer coagulant polyacrylamide, enter the gold and silver in the flotation device floatation and recovery of lead silver slag behind foaming agent methyl isobutyl carbinol (MIBC) 50 grams/ton, flotation pH value: natural pH 4--5.
4. method according to claim 1 is characterized in that: plumbous silver-colored slag flotation froth concentrate namely is the bulk concentrate of leaded, copper, Jin Heyin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101898771A CN101914686B (en) | 2010-06-01 | 2010-06-01 | Method for floating and recycling gold and silver by lead and silver slag ultrasonic treatment in zinc electrolysis plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101898771A CN101914686B (en) | 2010-06-01 | 2010-06-01 | Method for floating and recycling gold and silver by lead and silver slag ultrasonic treatment in zinc electrolysis plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101914686A CN101914686A (en) | 2010-12-15 |
| CN101914686B true CN101914686B (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101898771A Expired - Fee Related CN101914686B (en) | 2010-06-01 | 2010-06-01 | Method for floating and recycling gold and silver by lead and silver slag ultrasonic treatment in zinc electrolysis plant |
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| CN (1) | CN101914686B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841564B (en) * | 2015-05-15 | 2017-08-18 | 西北矿冶研究院 | Lead-silver residue flotation combined collecting agent and application process thereof |
| CN105344485B (en) * | 2015-10-16 | 2018-03-02 | 中南大学 | The method for reclaiming gold and its intergrowth from difficult-treating gold mine based on sulphur oil aggregative flotation |
| MX2019002840A (en) * | 2016-09-14 | 2019-05-27 | Outotec Finland Oy | Method for recovering precious metal. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274307A (en) * | 2008-05-21 | 2008-10-01 | 昆明理工大学 | Ultrasonic-flotation joint treatment method for zinc-kiln slag |
| CN101293194A (en) * | 2008-06-24 | 2008-10-29 | 株洲市兴民科技有限公司 | Method and technique for eliminating particle surface envelope in solution with ultrasound wave, and uses |
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2010
- 2010-06-01 CN CN2010101898771A patent/CN101914686B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274307A (en) * | 2008-05-21 | 2008-10-01 | 昆明理工大学 | Ultrasonic-flotation joint treatment method for zinc-kiln slag |
| CN101293194A (en) * | 2008-06-24 | 2008-10-29 | 株洲市兴民科技有限公司 | Method and technique for eliminating particle surface envelope in solution with ultrasound wave, and uses |
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| CN101914686A (en) | 2010-12-15 |
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Granted publication date: 20130403 Termination date: 20190601 |