CN102205279A - Collective floatation method for recycling silvers from high leaching residues - Google Patents
Collective floatation method for recycling silvers from high leaching residues Download PDFInfo
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- CN102205279A CN102205279A CN2011101279102A CN201110127910A CN102205279A CN 102205279 A CN102205279 A CN 102205279A CN 2011101279102 A CN2011101279102 A CN 2011101279102A CN 201110127910 A CN201110127910 A CN 201110127910A CN 102205279 A CN102205279 A CN 102205279A
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Abstract
The invention discloses a collective floatation method for recycling silvers from high leaching residues, which comprises the following steps: silver rough flotation and silver scavenging. In the process of silver rough flotation, after a dispersing agent sodium hexametaphosphate and an adsorbent activated carbon are added firstly, a collecting agent and a foaming agent are added, wherein ammonium dibuyldithiophosphate and Z-200 are used as the collecting agent and BK-206 is used as the foaming agent. In the process of silver scavenging, the collecting agent and the foaming agent are added into a flotation groove after being subjected to the rough flotation, wherein hydroximic acid is used as the collecting agent and the BK-2O6 is used as the foaming agent. According to the method, the Z-200 and the ammonium dibuyldithiophosphate are used as the collecting agent in the process of silver rough flotation for mainly recycling the silvers from sulphide ores, and the hydroximic acid with higher collecting capability is used as the collecting agent in the process of silver scavenging for mainly recycling the silvers from oxidized ores. By using the method, the silvers in the high leaching residues can be efficiently recycled while higher level and recycling rate are achieved. By performing the processes of silver rough flotation and silver scavenging on the high leaching residues, the recycling rate of silvers can reach 60-80%.
Description
Technical field
The invention belongs to the floatation process technical field, be specifically related to a kind of method of soaking bulk flotation silver the slag from height.
Background technology
Chinese patent ZL200610101223.2 " low pollution vanadium settling iron-removing wet zinc smelting method " is the wet zinc smelting method of a kind of comparative maturity of Chifeng Hongye Zinc Smelting Co.,Ltd's application; this method is suitable for handling the zinc concentrate of complicated component; improve metal recovery rate; strengthen the ability that removes impurity; improve end product quality; reduce raw and auxiliary material and energy resource consumption, reduce and pollute, be beneficial to environmental protection.This method comprises that mainly neutral leaching, low temperature preneutralization, high temperature peracid leach and four processing steps of low pollution vanadium settling iron-removing, produce iron vitriol slag by the low pollution vanadium settling iron-removing step.The high temperature peracid leaches the temperature of step more than 90 °, sour 130-150 grams per liter, whole sour 40-70 grams per liter begin, the leaded silver of the waste residue product bit comparison height that leaches the step generation by the high temperature peracid is referred to as plumbous silver-colored slag, its mineral composition of plumbous silver-colored slag that different acidleach concentration and temperature produce has very big difference, in order to distinguish the plumbous silver-colored slag that different process produces, we are referred to as height to the plumbous silver-colored slag that leaches the step generation by low pollution vanadium settling iron-removing wet zinc smelting method high temperature peracid and soak slag.
The grade that height soaks silver in the slag generally can reach about 280 gram/tons, has very high recovery value.Adopt flotation technology to be one and reclaim silver-colored reasonable method, still, different smelting process, the mineral composition of slag charge has very big difference.For soak flotation silver the slag from height, adopt which kind of medicament and metering do not have can reference data.Utilize floatation that the silver that height soaks in the slag is flotated, accomplish that rate of recovery height, consumption of chemical agent are few, cost poor benefit height is a new problem.
Summary of the invention
The purpose of this invention is to provide a kind of method of soaking bulk flotation silver the slag from height, this method has the advantages that technology is simple, consumption of chemical agent is few, cost is low, the rate of recovery is high.
Technical scheme of the present invention is: a kind of method of soaking bulk flotation silver the slag from height, and it comprises that height is soaked slag to carry out silver and roughly select with silver and scan, it is characterized in that: described silver is roughly selected and is comprised the steps:
(a) soak at height and add calgon in the dreg slurry, height per ton soaks slag, and to add calgon be 100～140 grams, stirs 5～10min;
(b) add active carbon in flotation cell, it is 2000～4000 grams that height per ton soaks slag adding active carbon, stirs 4～6min;
(c) add collecting agent and foaming agent in flotation cell, collecting agent uses Z-200 and butylamine black powder, and foaming agent uses BK-206, and it is that 80～120 grams, butylamine black powder are that 400～800 grams, foaming agent BK-206 are 16～30 grams that height per ton soaks slag adding Z-200.
Described silver is scanned step and is comprised:
Add collecting agent and foaming agent in through the flotation cell after roughly selecting, collecting agent makes hydroxamic acid, and foaming agent uses BK-206, and it is that 300～500 grams, foaming agent BK-206 are 16～30 grams that height per ton soaks slag adding hydroximic acid.
As a preferred embodiment of the present invention, described silver is roughly selected and is comprised the steps:
(a) soak at height and add calgon in the dreg slurry, height per ton soaks slag, and to add calgon be 110～130 grams, stirs 6～9min;
(b) add active carbon in flotation cell, it is 2500～3500 grams that height per ton soaks slag adding active carbon, stirs 4～6min;
(c) add collecting agent and foaming agent in flotation cell, collecting agent uses Z-200 and butylamine black powder, and foaming agent uses BK-206, and it is that 90～110 grams, butylamine black powder are that 500～700 grams, foaming agent BK-206 are 19～22 grams that height per ton soaks slag adding Z-200.
As the preferred technical scheme of the present invention, silver-colored primary slurry concentration is 35～45%, preferably 40%.
Advantage of the present invention is: the present invention includes silver and roughly select with silver and scan, wherein to roughly select and adopt Z-200 and butylamine black powder be collecting agent to silver, and emphasis selects the silver in the sulphide ore, and silver is scanned the stronger hydroximic acid collecting agent of employing collecting ability, the silver in the emphasis selective oxidation ore deposit.This method can realize effectively reclaiming to the silver that height soaks in the slag, and obtains than the high-grade and the rate of recovery.Carry out silver and roughly select with silver and scan through height being soaked slag, the rate of recovery of silver can reach 60～80%.This method also has the advantage that technology is simple, consumption of chemical agent is few, cost is low in addition.
Description of drawings
To be the present invention soak the method process flow diagram of bulk flotation silver the slag from height to Fig. 1.
The specific embodiment
With embodiment the present invention is described in further detail below:
Embodiment 1:
(1) raw mineral materials:
The complete analysis of table 1 sample ore
The thing phase of table 2 silver
(2) as shown in Figure 1, the method for floating of present embodiment is: height is soaked slag carries out that silver is roughly selected, silver is scanned and silver is selected, described silver is roughly selected and is comprised the steps: that (a) is that 40% height soaks and adds calgon in the dreg slurry at pulp density, it is 120 grams that height per ton soaks slag adding calgon, stirs 6min; (b) add active carbon in flotation cell, it is 2000 grams that height per ton soaks slag adding active carbon, stirs 6min; (c) add collecting agent and foaming agent in flotation cell, collecting agent uses Z-200 and butylamine black powder, and foaming agent uses BK-206, and it is that 100 grams, butylamine black powder are that 700 grams, foaming agent BK-206 are 21 grams that height per ton soaks slag adding Z-200.Described silver is scanned step and comprised: add collecting agent and foaming agent in through the flotation cell after roughly selecting, collecting agent makes hydroxamic acid, and foaming agent uses BK-206, and height per ton soaks slag adding hydroximic acid 400 grams, foaming agent BK-206 is 21 grams.Slag carries out that silver is roughly selected, silver is scanned and silver is selected, silver preparation concentrate productive rate 15.31%, grade 970.7g/t, the rate of recovery 56.96% through height is soaked; Silver chats productive rate 31.69%, grade 123.9g/t, the rate of recovery 15.05%; Overall recovery reaches 72.01%.
Embodiment 2:
(1) raw mineral materials: identical with embodiment 1.
(2) as shown in Figure 1, the method for floating of present embodiment is: height is soaked slag carries out that silver is roughly selected, silver is scanned and silver is selected, described silver is roughly selected and is comprised the steps: that (a) is that 35% height soaks and adds calgon in the dreg slurry at pulp density, it is 110 grams that height per ton soaks slag adding calgon, stirs 7min; (b) add active carbon in flotation cell, it is 3000 grams that height per ton soaks slag adding active carbon, stirs 5min; (c) add collecting agent and foaming agent in flotation cell, collecting agent uses Z-200 and butylamine black powder, and foaming agent uses BK-206, and it is that 110 grams, butylamine black powder are that 600 grams, foaming agent BK-206 are 20 grams that height per ton soaks slag adding Z-200.Described silver is scanned step and comprised: add collecting agent and foaming agent in through the flotation cell after roughly selecting, collecting agent makes hydroxamic acid, and foaming agent uses BK-206, and height per ton soaks slag adding hydroximic acid 380 grams, foaming agent BK-206 is 19 grams.Slag carries out that silver is roughly selected, silver is scanned and silver is selected, silver preparation concentrate productive rate 16.05%, grade 1025.2g/t, the rate of recovery 60.94% through height is soaked; Silver chats productive rate 30.82%, grade 153.0g/t, the rate of recovery 17.46%; Overall recovery reaches 78.40%.
Embodiment 3:
(1) raw mineral materials: identical with embodiment 1.
(2) as shown in Figure 1, the method for floating of present embodiment is: height is soaked slag carries out that silver is roughly selected, silver is scanned and silver is selected, described silver is roughly selected and is comprised the steps: that (a) is that 45% height soaks and adds calgon in the dreg slurry at pulp density, it is 130 grams that height per ton soaks slag adding calgon, stirs 8min; (b) add active carbon in flotation cell, it is 3200 grams that height per ton soaks slag adding active carbon, stirs 4min; (c) add collecting agent and foaming agent in flotation cell, collecting agent uses Z-200 and butylamine black powder, and foaming agent uses BK-206, and it is that 90 grams, butylamine black powder are that 500 grams, foaming agent BK-206 are 19 grams that height per ton soaks slag adding Z-200.Described silver is scanned step and comprised: add collecting agent and foaming agent in through the flotation cell after roughly selecting, collecting agent makes hydroxamic acid, and foaming agent uses BK-206, and height per ton soaks slag adding hydroximic acid 450 grams, foaming agent BK-206 is 22 grams.Slag carries out that silver is roughly selected, silver is scanned and silver is selected, silver preparation concentrate productive rate 15.83%, grade 986.7g/t, the rate of recovery 57.85% through height is soaked; Silver chats productive rate 33.59%, grade 134.6g/t, the rate of recovery 16.75%; Overall recovery reaches 74.60%.
Claims (3)
1. method of soaking bulk flotation silver the slag from height, it comprises that height is soaked slag to carry out silver and roughly select with silver and scan, it is characterized in that, described silver is roughly selected and is comprised the steps: that (a) soaks at height and add calgon in the dreg slurry, it is 100～140 grams that height per ton soaks slag adding calgon, stirs 5～10min; (b) add active carbon in flotation cell, it is 2000～4000 grams that height per ton soaks slag adding active carbon, stirs 4～6min; (c) add collecting agent and foaming agent in flotation cell, collecting agent uses Z-200 and butylamine black powder, and foaming agent uses BK-206, and it is that 80～120 grams, butylamine black powder are that 400～800 grams, foaming agent BK-206 are 16～30 grams that height per ton soaks slag adding Z-200;
Described silver is scanned step and comprised: add collecting agent and foaming agent in through the flotation cell after roughly selecting, collecting agent makes hydroxamic acid, and foaming agent uses BK-206, and it is that 300～500 grams, foaming agent BK-206 are 16～30 grams that height per ton soaks slag adding hydroximic acid.
2. method of soaking bulk flotation silver the slag according to claim 1 from height, it is characterized in that, described silver is roughly selected and is comprised the steps: that (a) soaks at height and add calgon in the dreg slurry, and height per ton soaks slag, and to add calgon be 110～130 grams, stirs 6～9min; (b) add active carbon in flotation cell, it is 2500～3500 grams that height per ton soaks slag adding active carbon, stirs 4～6min; (c) add collecting agent and foaming agent in flotation cell, collecting agent uses Z-200 and butylamine black powder, and foaming agent uses BK-206, and it is that 90～110 grams, butylamine black powder are that 500～700 grams, foaming agent BK-206 are 19～22 grams that height per ton soaks slag adding Z-200.
3. method of soaking bulk flotation silver the slag from height according to claim 1 and 2 is characterized in that: silver-colored primary slurry concentration is 35～45%.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614991A (en) * | 2012-03-19 | 2012-08-01 | 赤峰中色锌业有限公司 | Flotation process for recovering silver from high-immersion slag by middling recleaning method |
| CN102660690A (en) * | 2012-05-16 | 2012-09-12 | 赤峰中色锌业有限公司 | Method for recovering valuable metal from zinc hydrometallurgy high acid leach residue |
| CN103526044A (en) * | 2013-09-10 | 2014-01-22 | 马永涛 | Zinc hydrometallurgy process favorable for floatation silver and adopted precipitating silver mixture |
| CN107694759A (en) * | 2017-09-12 | 2018-02-16 | 长春黄金研究院 | A kind of collecting method of monomer particle gold |
| CN111041211A (en) * | 2019-12-10 | 2020-04-21 | 赤峰中色锌业有限公司 | Comprehensive recovery and harmless treatment method for zinc hydrometallurgy high leaching residue |
| CN111041210A (en) * | 2019-12-10 | 2020-04-21 | 赤峰中色锌业有限公司 | Comprehensive recovery and harmless treatment method for zinc hydrometallurgy jarosite slag and high leaching slag |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050022629A1 (en) * | 2003-07-28 | 2005-02-03 | Sumitomo Metal Mining Co., Ltd. | Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical process |
| JP2009209422A (en) * | 2008-03-05 | 2009-09-17 | Sumitomo Metal Mining Co Ltd | Method for leaching lead anode-slime with chlorine |
| CN101838745A (en) * | 2010-04-15 | 2010-09-22 | 赤峰中色库博红烨锌业有限公司 | Zinc hydrometallurgy process with high yield by precipitating alum and removing iron |
-
2011
- 2011-05-05 CN CN 201110127910 patent/CN102205279B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050022629A1 (en) * | 2003-07-28 | 2005-02-03 | Sumitomo Metal Mining Co., Ltd. | Method for concentrating precious metals contained in leaching residue discharged from copper hydrometallurgical process |
| JP2009209422A (en) * | 2008-03-05 | 2009-09-17 | Sumitomo Metal Mining Co Ltd | Method for leaching lead anode-slime with chlorine |
| CN101838745A (en) * | 2010-04-15 | 2010-09-22 | 赤峰中色库博红烨锌业有限公司 | Zinc hydrometallurgy process with high yield by precipitating alum and removing iron |
Non-Patent Citations (2)
| Title |
|---|
| 沈湘黔等: "《铁矾法炼锌工艺中回收银的研究》", 《矿冶工程》, vol. 12, no. 2, 30 June 1992 (1992-06-30), pages 51 - 55 * |
| 黄开国等: "《从锌浸出渣中浮选回收银》", 《中南工业大学学报》, vol. 28, no. 6, 30 December 1997 (1997-12-30), pages 530 - 532 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102614991A (en) * | 2012-03-19 | 2012-08-01 | 赤峰中色锌业有限公司 | Flotation process for recovering silver from high-immersion slag by middling recleaning method |
| CN102660690A (en) * | 2012-05-16 | 2012-09-12 | 赤峰中色锌业有限公司 | Method for recovering valuable metal from zinc hydrometallurgy high acid leach residue |
| CN103526044A (en) * | 2013-09-10 | 2014-01-22 | 马永涛 | Zinc hydrometallurgy process favorable for floatation silver and adopted precipitating silver mixture |
| CN107694759A (en) * | 2017-09-12 | 2018-02-16 | 长春黄金研究院 | A kind of collecting method of monomer particle gold |
| CN111041211A (en) * | 2019-12-10 | 2020-04-21 | 赤峰中色锌业有限公司 | Comprehensive recovery and harmless treatment method for zinc hydrometallurgy high leaching residue |
| CN111041210A (en) * | 2019-12-10 | 2020-04-21 | 赤峰中色锌业有限公司 | Comprehensive recovery and harmless treatment method for zinc hydrometallurgy jarosite slag and high leaching slag |
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| CN102205279B (en) | 2012-12-19 |
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Inventor after: Ma Yongtao Inventor after: Ge Yingyong Inventor after: Wang Fengchao Inventor after: Li Long Inventor after: Zhang Chunming Inventor after: Li Lianzhong Inventor after: Liu Yuqin Inventor after: Xiao Changling Inventor after: Ma Qinglong Inventor before: Ma Yongtao Inventor before: Ge Yingyong |
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Owner name: CHINA NONFERROUS METAL MINING (GROUP) CO., LTD. CH Effective date: 20131217 |
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Inventor after: Ma Yongtao Inventor after: Zhu Jianwei Inventor after: Ma Ming Inventor after: Xu Guoyu Inventor after: Li Ningting Inventor after: Lai Jianyan Inventor after: Ge Yingyong Inventor after: Wang Fengchao Inventor after: Li Long Inventor after: Zhang Chunming Inventor after: Li Lianzhong Inventor after: Liu Yuqin Inventor after: Xiao Changling Inventor after: Ma Qinglong Inventor before: Ma Yongtao Inventor before: Ge Yingyong Inventor before: Wang Fengchao Inventor before: Li Long Inventor before: Zhang Chunming Inventor before: Li Lianzhong Inventor before: Liu Yuqin Inventor before: Xiao Changling Inventor before: Ma Qinglong |
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Free format text: CORRECT: INVENTOR; FROM: MA YONGTAO GE YINGYONG WANG FENGCHAO LI LONG ZHANG CHUNMING LI LIANZHONG LIU YUQIN XIAO CHANGLING MA QINGLONG TO: MA YONGTAO GE YINGYONG WANG FENGCHAO LI LONG ZHANG CHUNMING LI LIANZHONG LIU YUQIN XIAO CHANGLING MA QINGLONG ZHU JIANWEI MA MING XU GUOYU LI NINGTING LAI JIANYAN |
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Effective date of registration: 20131217 Address after: 024000 the Inner Mongolia Autonomous Region Chifeng City Hongshan District, the eastern suburbs of Chifeng Zhongse Cooper Hong Ye zinc industry limited company Patentee after: Chifeng Zhong Sekubo Hongye Zinc Industry Co.,Ltd. Patentee after: CHINA NONFERROUS METAL MINING (Group) Co.,Ltd. Patentee after: China Nonferrous Metals Construction Co.,Ltd. Address before: 024000 the Inner Mongolia Autonomous Region Chifeng City Hongshan District, the eastern suburbs of Chifeng Zhongse Cooper Hong Ye zinc industry limited company Patentee before: Chifeng Zhong Sekubo Hongye Zinc Industry Co.,Ltd. |
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Effective date of registration: 20220627 Address after: 024000 No.8 Hongye street, Dongcheng, Hongshan District, Chifeng City, Inner Mongolia Autonomous Region Patentee after: CHIFENG ZHONGSE ZINC INDUSTRY CO.,LTD. Patentee after: CHINA NONFERROUS METAL MINING (Group) Co.,Ltd. Patentee after: China Nonferrous Metals Construction Co.,Ltd. Address before: 024000 Chifeng Zhongse Kubo Hongye Zinc Industry Co., Ltd. in the eastern suburb of Hongshan District, Chifeng City, Inner Mongolia Autonomous Region Patentee before: Chifeng Zhong Sekubo Hongye Zinc Industry Co.,Ltd. Patentee before: CHINA NONFERROUS METAL MINING (Group) Co.,Ltd. Patentee before: China Nonferrous Metals Construction Co.,Ltd. |
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