CN107586969A - A kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification - Google Patents
A kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification Download PDFInfo
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- CN107586969A CN107586969A CN201710682850.8A CN201710682850A CN107586969A CN 107586969 A CN107586969 A CN 107586969A CN 201710682850 A CN201710682850 A CN 201710682850A CN 107586969 A CN107586969 A CN 107586969A
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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
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Abstract
The invention discloses a kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification, comprehensive copper ashes is changed to one section of net liquid workshop slag, compressed air is installed additional in one section of slurrying tank of net liquid, so as to which elemental copper preferably is oxidized into copper ion, eliminate the need for integrating copper ashes dries oxidation trafficking step, increase content of copper ion, reduce auxiliary material consumption.Avoid simultaneously because copper ashes lumps, cause the difficulty of operation, reduce the manpower consumption when adding dry slag；Process adds a pulp medial launder before dechlorination, so as to which continuous operation can be better achieved, is continuously run by being realized after transforming, treating capacity increases.The beneficial effects of the invention are as follows：1st, supernatant treating capacity in increasing, before unexecuted, daily treating capacity is 200m3Middle supernatant, it is 300m after transformation3Left and right；2nd, copper sulphate consumption is saved, adds 25 50kg copper sulphate per groove before transformation, because one section of pulp amount of copper is sufficient after transformation, it is not necessary to add copper sulphate.3rd, labor strength is reduced.
Description
The present invention relates to the dechlorination method in zinc metal smelting for technical field, and in particular to one kind utilizes one section of slurry of purification
The method of slugging alternative dry chlorine removal from copper residue.
The presence of chlorion in background technology wet zinc-making system so that leach the equipment and potroom in workshop
Cathode-anode plate corrosion aggravation, influence the service life of equipment and cathode-anode plate and the product quality of cathode zinc, in order to strengthen chlorine from
The monitoring of son, mitigates the harm of chlorion, is removed when chlorine ion concentration is higher.Dechlorinate the principles of chemistry：Cu2++Cu+2Cl-
=Cu2Cl2, course of reaction is：Supernatant during reactive tank adds, stirring is opened, it is appropriate to be pumped into electrolysis waste solution into reactive tank, control
Temperature (50 DEG C -60 DEG C) in preceding liquid acid content (10g/l) and groove.Copper ashes, manganese powder, copper sulphate are added in reactive tank simultaneously.Often
Every 20 minutes sampling analysis copper ions, chlorion respectively once, will control solution to contain sour 1-2g/l, sulphur is added in adjustment reactive tank
The amount of sour copper and manganese powder, liquid content of copper ion Cu after control2+2-3g/l, after rear liquid chlorine ion is qualified (200mg/l), it is sent to pressure
Filter, filtrate, which is sent, leaches workshop, and filter residue is moved back at goods and materials.Copper ashes used in dechlorination is to be transported after integrating copper ashes, it is necessary to carry out drying oxidation
To dechlorination, workshop section uses.And copper ashes easily lumps, cause to operate especially difficult, labor strength is big；Dechlorination not only needs two
Valency copper ion, it is also necessary to elemental copper, so needing to add copper sulphate during dechlorination, so as in more efficient removing solution
Chlorion, copper sulphate, manganese powder consumption are big；Dechlorination process is that interruption does groove, and treating capacity is limited.
The content of the invention present invention is in order to overcome the shortcomings of the prior art, there is provided one kind utilizes one section of pulp slag of purification
The method of alternative dry chlorine removal from copper residue.The dechlorination method is simple, easy to operate, reduces auxiliary material consumption, reduces labor intensity.
The present invention is achieved by the following technical solutions：
A kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification, comprise the following steps：
(1) it is copper ion to be passed through compressed air oxidation elemental copper in one section of slurrying tank of net liquid, compressed air pressure：
0.4Mpa, compressed air require：0.47m3/ min, elemental copper oxidation mechanisms：2Cu+O2=2CuO, slurrying tank content of copper ion：
Cu2+0.1-0.2g/l；
(2) one section of pulp slag after oxidation is beaten toward dechlorination workshop section pulp medial launder；
(3) supernatant during reactive tank adds, stirring is opened, electrolysis waste solution, middle supernatant and waste liquid ratio are pumped into reactive tank
For 14：1-15：1, add 0.45-0.8g/l manganese powders, liquid acid content (10g/l) before adjustment electrolysis waste solution amount makes, temperature in adjustment tank
Spend (50 DEG C -60 DEG C).
(4) pulp liquid pump in pulp medial launder is entered into reactive tank, every 20 minutes sampling analysis copper ions, chlorion each one
It is secondary, pulp liquid addition is controlled, reaction solution is contained sour 1-2g/l, rear liquid content of copper ion Cu2+2-3g/l, rear liquid chlorine ion
(Cl after qualified-≤ 200mg/l), it is sent to press filtration；
(5) filtrate through filter press, which is sent, leaches workshop, and protochloride copper ashes is moved back at goods and materials.
The beneficial effects of the invention are as follows：1st, supernatant treating capacity in increasing, before unexecuted, handles 200m daily3Middle supernatant, changes
After new method, supernatant 300m in handling daily3Left and right；2nd, copper sulphate consumption is saved, adds 25-50kg sulfuric acid per groove before transformation
Copper, because one section of pulp amount of copper is sufficient after transformation, it is not necessary to add copper sulphate；3rd, labor strength is reduced.
Illustrate the flow chart that Fig. 1 is one section of pulp slag alternative dry chlorine removal from copper residue.
Embodiment
Embodiment 1：A kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification, comprise the following steps：
(1) it is copper ion to be passed through compressed air oxidation elemental copper in one section of slurrying tank of net liquid, and one section of pulp slag of purification is copper
Cadmium slag, compressed air pressure：0.4Mpa, compressed air require：0.47m3/ min, elemental copper oxidation mechanisms：2Cu+O2=2CuO,
Slurrying tank content of copper ion：Cu2+0.1g/l；
(2) one section of pulp slag after oxidation is beaten toward dechlorination workshop section pulp medial launder；
(3) supernatant during reactive tank adds, stirring is opened, electrolysis waste solution, middle supernatant and waste liquid ratio are pumped into reactive tank
For 14：1, add 0.45-0.8g/l manganese powders, liquid acid content (10g/l) before adjustment electrolysis waste solution amount makes, temperature (50 in adjustment tank
DEG C -60 DEG C)；
(4) pulp liquid pump in pulp medial launder is entered into reactive tank, every 20 minutes sampling analysis copper ions, chlorion each one
It is secondary, pulp liquid addition is controlled, reaction solution is contained sour 1g/l, rear liquid content of copper ion Cu2+2g/l, after rear liquid chlorine ion is qualified
(Cl-≤ 200mg/l), it is sent to press filtration；
(5) filtrate through filter press, which is sent, leaches workshop, and protochloride copper ashes is moved back at goods and materials.
Embodiment 2：A kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification, comprise the following steps：
(1) add that to be passed through compressed air oxidation elemental copper be copper ion in one section of slurrying tank of net liquid, one section of pulp slag of purification is
Copper-cadmium slag, compressed air pressure：0.4Mpa, compressed air require：0.47m3/ min, elemental copper oxidation mechanisms：2Cu+O2=
2CuO, slurrying tank content of copper ion：Cu2+0.2g/l；
(2) one section of pulp slag after oxidation is beaten toward dechlorination workshop section pulp medial launder；
(3) supernatant during reactive tank adds, stirring is opened, electrolysis waste solution, middle supernatant and waste liquid ratio are pumped into reactive tank
For 15：1, add 0.45-0.8g/l manganese powders, liquid acid content 10g/l before adjustment electrolysis waste solution amount makes, temperature (50 in adjustment tank
DEG C -60 DEG C).
(4) pulp liquid pump in pulp medial launder is entered into reactive tank, every 20 minutes sampling analysis copper ions, chlorion each one
It is secondary, pulp liquid addition is controlled, reaction solution is contained sour 2g/l, rear liquid content of copper ion Cu2+3g/l, after rear liquid chlorine ion is qualified
(Cl-≤ 200mg/l), it is sent to press filtration；
(5) filtrate through filter press, which is sent, leaches workshop, and protochloride copper ashes is moved back at goods and materials.
It is copper-cadmium slag that one section of pulp slag is purified in the present invention, and waste electrolyte refers to the remaining useless of potroom electrolytic zinc
Liquid；Manganese powder is manganese mineral powder, wherein manganese dioxide content 50%-55%.
Claims (1)
- A kind of 1. method using one section of pulp slag alternative dry chlorine removal from copper residue of purification, it is characterised in that：Comprise the following steps：(1) it is copper ion to be passed through compressed air oxidation elemental copper in one section of slurrying tank of net liquid, compressed air pressure：0.4Mpa, pressure Stream of compressed air amount：0.47m3/ min, elemental copper oxidation mechanisms：2Cu+O2=2CuO, slurrying tank content of copper ion：Cu2+0.1- 0.2g/l；(2) one section of pulp slag after oxidation is beaten toward dechlorination workshop section pulp medial launder；(3) supernatant during reactive tank adds, stirring is opened, electrolysis waste solution is pumped into reactive tank, middle supernatant and waste liquid ratio is 14： 1-15：1, liquid acid content (10g/l) before adjustment waste liquid amount makes, temperature (50 DEG C -60 DEG C) in adjustment tank.(4) pulp liquid pump in pulp medial launder is entered into reactive tank, every 20 minutes sampling analysis copper ions, chlorions respectively once, Pulp liquid addition is controlled, reaction solution is contained sour 1-2g/l, rear liquid content of copper ion Cu2+2-3g/l, rear liquid chlorine ion close (Cl after lattice-≤ 200mg/l), it is sent to press filtration；(5) filtrate through filter press, which is sent, leaches workshop, and protochloride copper ashes is moved back at goods and materials.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710682850.8A CN107586969A (en) | 2017-08-11 | 2017-08-11 | A kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification |
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| CN201710682850.8A CN107586969A (en) | 2017-08-11 | 2017-08-11 | A kind of method using one section of pulp slag alternative dry chlorine removal from copper residue of purification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456785A (en) * | 2018-02-01 | 2018-08-28 | 云南云铜锌业股份有限公司 | A kind of method and device using copper ashes dechlorination |
| CN111549234A (en) * | 2020-05-07 | 2020-08-18 | 云南云铜锌业股份有限公司 | Method and system for dechlorinating zinc hydrometallurgy copper slag |
| CN112725835A (en) * | 2020-12-29 | 2021-04-30 | 吉首市金湘资源科技开发有限公司 | Method for cleanly producing high-purity electrolytic zinc by utilizing high-chlorine copper ash and copper mud zinc material |
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| JPS55141532A (en) * | 1979-04-17 | 1980-11-05 | Mitsubishi Metal Corp | Purifying method for zinc electrolytic solution |
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| CN101457295A (en) * | 2007-12-10 | 2009-06-17 | 巴彦淖尔紫金有色金属有限公司 | Dechlorination method in zinc hydrometallurgy circulation solution system |
| CN101633982A (en) * | 2009-08-15 | 2010-01-27 | 蒙自矿冶有限责任公司 | Method for circularly removing chlorine in zinc sulfate solution from copper slag |
| CN102796869A (en) * | 2012-09-12 | 2012-11-28 | 葫芦岛锌业股份有限公司 | Method for removing chlorine in zinc sulfate solution with high chlorine content |
| CN104046793A (en) * | 2014-06-27 | 2014-09-17 | 湖南水口山有色金属集团有限公司 | Method of removing chlorine in zinc sulfate solution |
| CN106555060A (en) * | 2016-11-15 | 2017-04-05 | 云南驰宏锌锗股份有限公司 | It is a kind of to adopt the method dechlorinated from zinc solution except surface autoxidation copper ashes after cadmium |
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2017
- 2017-08-11 CN CN201710682850.8A patent/CN107586969A/en active Pending
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| JPS55141532A (en) * | 1979-04-17 | 1980-11-05 | Mitsubishi Metal Corp | Purifying method for zinc electrolytic solution |
| CN101457295A (en) * | 2007-12-10 | 2009-06-17 | 巴彦淖尔紫金有色金属有限公司 | Dechlorination method in zinc hydrometallurgy circulation solution system |
| CN101285119A (en) * | 2008-05-23 | 2008-10-15 | 祥云县飞龙实业有限责任公司 | A method for removing chlorine in zinc electrolytic solution |
| CN101633982A (en) * | 2009-08-15 | 2010-01-27 | 蒙自矿冶有限责任公司 | Method for circularly removing chlorine in zinc sulfate solution from copper slag |
| CN102796869A (en) * | 2012-09-12 | 2012-11-28 | 葫芦岛锌业股份有限公司 | Method for removing chlorine in zinc sulfate solution with high chlorine content |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108456785A (en) * | 2018-02-01 | 2018-08-28 | 云南云铜锌业股份有限公司 | A kind of method and device using copper ashes dechlorination |
| CN111549234A (en) * | 2020-05-07 | 2020-08-18 | 云南云铜锌业股份有限公司 | Method and system for dechlorinating zinc hydrometallurgy copper slag |
| CN112725835A (en) * | 2020-12-29 | 2021-04-30 | 吉首市金湘资源科技开发有限公司 | Method for cleanly producing high-purity electrolytic zinc by utilizing high-chlorine copper ash and copper mud zinc material |
| CN112725835B (en) * | 2020-12-29 | 2024-03-12 | 吉首市金湘资源科技开发有限公司 | Method for cleanly producing high-purity electrolytic zinc by utilizing high-chlorine copper ash and copper mud zinc material |
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Application publication date: 20180116 |