CN103361483B - Technology for removing cobalt by dynamic wave chlorine oxidation - Google Patents
Technology for removing cobalt by dynamic wave chlorine oxidation Download PDFInfo
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- CN103361483B CN103361483B CN201310331269.3A CN201310331269A CN103361483B CN 103361483 B CN103361483 B CN 103361483B CN 201310331269 A CN201310331269 A CN 201310331269A CN 103361483 B CN103361483 B CN 103361483B
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- chlorine
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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 discloses a technology for removing cobalt by dynamic wave chlorine oxidation. The technology utilizes dynamic wave reaction towers. The technology utilizes three stages of the dynamic wave reaction towers, wherein the primary and secondary dynamic wave reaction towers are cobalt recovery reaction towers and the tertiary dynamic wave reaction tower is a tail gas recovery treatment tower. The technology combines characteristics of dynamic wave and cobalt recovery, utilizes the dynamic wave reaction towers as reactors for a cobalt removal unit, has simple processes, a high automation degree and a high chlorine utilization rate and can produce tail gas directly satisfying the discharge standard.
Description
Technical field
The present invention relates to the chemical production technology in Nonferrous Metallurgical Process, especially relate to a kind of except the dynamic wave chlorine oxidation in cobalt production process is except cobalt technique.
Background technology
Nonferrous metallurgy, cobalt liquid is contained as what produce in the process such as scavenging process, nickel cobalt smelting sepn process of nickel electrowinning, can be described as reaction solution, need in advance cobalt to be removed, reach the object of purification liquid and Call Provision, generally all adopt chlorine oxidation to carry out except cobalt, chlorine oxidation is except the principal reaction of cobalt is as equation (1) and (2), first divalent cobalt ion is oxidized to trivalent cobalt ion by chlorine, and trivalent cobalt ion is hydrolytic precipitation under certain pH conditions, thus reaches the separation of cobalt:
Co
3++OH
-→Co（OH)
3(2)
The technique that current chlorine oxidation removes cobalt has line-blending technique and foam absorbing tower process, because the solubleness of chlorine is lower, adopt line-blending technique, comparatively long pipeline is needed to carry out blended absorbent to chlorine, duct length is generally more than 150 meters, and need to carry out Venturi design to increase assimilation effect to pipeline, line-blending technique needs the multistage cobalt precipitation tank in term of follow-up cooperation in addition, in order to complete the precipitation of cobalt, therefore its complex process, flow process is longer, and is difficult to realize Automated condtrol completely; And adopt foam absorbing tower process, need tower comparatively large, device structure is complicated, and needs multistage absorption, and cost is higher, and its technique is more complicated equally, and level of automation is not high; Existing chlorine oxidation is except cobalt technique, due to the limitation of technique self, chlorine utilization is lower, this causes the waste of chlorine on the one hand, and be all difficult to realize closing produce, situ production is poor, and final waste gas is due to higher chlorine content on the other hand, and process needs larger equipment and fund input.
Summary of the invention
The present invention is to solve current chlorine oxidation except Problems existing in the technique of cobalt, there is provided a kind of in conjunction with dynamic wave and the feature except cobalt production, by dynamic wave as reactor, be applied to except cobalt productive unit, its technical process is simple, level of automation is high, and chlorine utilization is high, and produce produce tail gas can directly qualified discharge dynamic wave chlorine oxidation remove driller's skill.
To achieve these goals, the present invention is by the following technical solutions: dynamic wave chlorine oxidation is except cobalt technique, utilize dynamic wave reaction tower, described dynamic wave chlorine oxidation removes cobalt technique and adopts three grades of dynamic waves, first order kinetics ripple and second motive force ripple reclaim reaction tower as cobalt, three grades of dynamic waves, as tail gas absorption treating column, comprise the following steps:
Step one, in the storage tank of first order kinetics ripple reaction tower and second motive force ripple reaction tower, arrange temperature of reaction is 60 ~ 70 DEG C, and pH is set between 4.0 ~ 5.0, and redox potential value is set as 1000 ~ 1100mv;
Step 2, liquid chlorine enters the inverse spray reacting pipe of first order kinetics ripple reaction tower after the gasification of chlorine gasification bag simultaneously with reaction solution, both reverse contacts, form foam reactant district;
Step 3, enters into after reaction solution and chlorine contact reacts complete in first order kinetics ripple tower storage tank, carries out cobaltous hydrolytic precipitation reaction;
Step 4, second motive force ripple reaction tower inverse spray reacting pipe is not entered into by the chlorine of absorption reaction in first stage tower, the reaction solution of second motive force ripple is provided by first order kinetics ripple reaction tower, and chlorine contacts with reaction solution is reverse in second motive force ripple tower inverse spray reaction tubes, forms foam reactant district;
Step 5, enters into after reaction solution and chlorine contact reacts complete in second motive force ripple tower storage tank, carries out cobaltous hydrolytic precipitation reaction further;
Step 6, cobalt contents analysis and density analysis are carried out to reaction solution in second motive force ripple tower storage tank, when reaction solution reaches cobalt contents and the density criterion of setting discharge, in second motive force ripple tower storage tank, enter into filtration unit containing cobalt precipitin reaction liquid and filter, filter residue enters filter residue accumulator tank;
Step 7, the remaining unreacted chlorine of second motive force ripple reaction tower enters into three grades of dynamic wave tail gas absorbers,
By alkali lye to qualified discharge after chlorine absorption.
Dynamic wave is a kind of gas-liquid mass transfer (contact) equipment efficiently, and its structure is simple, not easily blocks, invests low, and control can realize automatization completely; Chlorine contacts with containing cobalt reaction solution is reverse, form foam reactant district, the froth zone of dynamic wave has efficient specific absorption to chlorine, also improve cobalt oxidation speed of reaction simultaneously, after through the reaction solution of I and II dynamic wave, device filters after filtration, the cobalt precipitation filter residue filtered enters filter residue accumulator tank, can do further deep processing process except cobalt, and carry out other reaction except the filtrate after cobalt can enter into subsequent processing after recovery.
As preferably, in described step one, temperature controls by regulating heating to realize, and pH is by adding alkali lye to regulate, and redox potential regulates by changing chlorine flowrate.In dynamic wave reaction tower can reload temperature, pH (potential of hydrogen) value, the measurement of 0RP (redox potential) value and setting device, in order to enable to remain on carrying out hydrolyzing and precipitating reaction smoothly under certain reaction conditions containing cobalt reaction solution.
As preferably, described alkali lye is nickelous carbonate or sodium carbonate.
As preferably, in described step 6, containing the filtrate after the filtration of cobalt precipitin reaction liquid, recyclable.Carry out other reaction except the filtrate after cobalt can enter into subsequent processing, such as reaction solution is for containing cobalt nickel electrolyte, and the filtrate of separation can enter into nickel electrowinning operation.
As preferably, in described step 7, absorb remaining chlorine by adding sodium hydroxide lye, tail gas is discharged through blower fan.
Therefore, the present invention has following beneficial effect: (1) technical process is simple, and level of automation is high; (2) chlorine utilization is high; (3) producing the tail gas produced can direct qualified discharge.
Accompanying drawing explanation
Fig. 1 is a kind of process schematic representation of the present invention.
In figure: 1, chlorine gasification bag 2, reaction solution storage tank 3, first order kinetics ripple reaction tower
4, second motive force ripple reaction tower 5, three grades of dynamic wave tail gas absorbers 6, filtration units
7, filter residue accumulator tank 8, blower fan
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Embodiment as shown in Figure 1, dynamic wave chlorine oxidation is except cobalt technique, utilize dynamic wave reaction tower, dynamic wave chlorine oxidation removes cobalt technique and adopts three grades of dynamic waves, first order kinetics ripple and second motive force ripple reclaim reaction tower as cobalt, three grades of dynamic waves are as tail gas absorption treating column, reaction solution is for containing cobalt nickel electrolyte, in the storage tank of first order kinetics ripple reaction tower 3 and second motive force ripple reaction tower 4, temperature of reaction is kept to be 65 DEG C before producing, pH is set to 4.5, redox potential value is 1050mV, during production, the reaction solution of liquid chlorine after chlorine gasification bag 1 gasifies and in reaction solution storage tank 2 enters the inverse spray reacting pipe of first order kinetics ripple reaction tower 3 simultaneously, both reverse contacts, form foam reactant district, enter in first order kinetics ripple tower 3 storage tank after reaction solution and chlorine contact reacts complete, carry out cobaltous hydrolytic precipitation reaction, in reaction process, temperature of reaction controls by regulating heating to realize, pH is by adding nickelous carbonate to regulate, redox potential regulates by changing chlorine flowrate, afterwards, the inverse spray reacting pipe of second motive force ripple reaction tower 4 is not entered into by the chlorine of absorption reaction in first order kinetics ripple reaction tower 3, the reaction solution of second motive force ripple reaction tower 4 is provided by first order kinetics ripple reaction tower 3, chlorine contacts with reaction solution is reverse in second motive force ripple reaction tower 4 inverse spray reaction tubes, form foam reactant district, enter in second motive force ripple reaction tower 4 storage tank after reaction solution and chlorine contact reacts complete, carry out cobaltous hydrolytic precipitation reaction further, in reaction process, temperature of reaction controls by regulating heating to realize, pH is by adding nickelous carbonate to regulate, redox potential regulates by changing chlorine flowrate, simultaneously, cobalt contents analysis and density analysis are carried out to reaction solution in second motive force ripple reaction tower 4 storage tank, when reaction solution reaches cobalt contents and the density criterion of setting discharge, in second motive force ripple reaction tower 4 storage tank, enter into filtration unit 6 containing cobalt precipitin reaction liquid to filter, filter residue enters filter residue accumulator tank 7, further deep processing process can be done except cobalt containing cobalt precipitation filter residue, and carry out electrolytic reaction except the filtrate after cobalt can enter into nickel electrowinning operation, in second motive force ripple reaction tower 4, remaining unreacted chlorine enters into three grades of dynamic wave tail gas absorbers 5, by adding sodium hydroxide lye to chlorine absorption, discharge through blower fan 8 after tail gas is up to standard.
Claims (5)
1. a dynamic wave chlorine oxidation is except cobalt technique, utilize dynamic wave reaction tower, it is characterized in that, described dynamic wave chlorine oxidation removes cobalt technique and adopts three grades of dynamic waves, first order kinetics ripple and second motive force ripple reclaim reaction tower as cobalt, three grades of dynamic waves, as tail gas absorption treating column, comprise the following steps:
Step one, in the storage tank of first order kinetics ripple reaction tower and second motive force ripple reaction tower, arrange temperature of reaction is 60 ~ 70 DEG C, and pH is set between 4.0 ~ 5.0, and redox potential value is set as 1000 ~ 1100mV;
Step 2, liquid chlorine enters the inverse spray reacting pipe of first order kinetics ripple reaction tower after the gasification of chlorine gasification bag simultaneously with reaction solution, both reverse contacts, form foam reactant district;
Step 3, enters into after reaction solution and chlorine contact reacts complete in first order kinetics ripple reaction tower storage tank, carries out cobaltous hydrolytic precipitation reaction;
Step 4, second motive force ripple reaction tower inverse spray reacting pipe is not entered into by the chlorine of absorption reaction in first stage tower, the reaction solution of second motive force ripple is provided by first order kinetics ripple reaction tower, and chlorine contacts with reaction solution is reverse in second motive force ripple reaction tower inverse spray reaction tubes, forms foam reactant district;
Step 5, enters into after reaction solution and chlorine contact reacts complete in second motive force ripple reaction tower storage tank, carries out cobaltous hydrolytic precipitation reaction further;
Step 6, cobalt contents analysis and density analysis are carried out to reaction solution in second motive force ripple reaction tower storage tank, when reaction solution reaches cobalt contents and the density criterion of setting discharge, in second motive force ripple reaction tower storage tank, enter into filtration unit containing cobalt precipitin reaction liquid to filter, filter residue enters filter residue accumulator tank;
Step 7, the remaining unreacted chlorine of second motive force ripple reaction tower enters into three grades of dynamic wave tail gas absorbers, by alkali lye to qualified discharge after chlorine absorption.
2. dynamic wave chlorine oxidation according to claim 1 is except cobalt technique, it is characterized in that, in described step one, temperature controls by regulating heating to realize, and pH is by adding alkali lye to regulate, and redox potential regulates by changing chlorine flowrate.
3. dynamic wave chlorine oxidation according to claim 2 is except cobalt technique, and it is characterized in that, described alkali lye is nickelous carbonate or sodium carbonate.
4. dynamic wave chlorine oxidation according to claim 1 is except cobalt technique, it is characterized in that, in described step 6, the filtrate after filtering containing cobalt precipitin reaction liquid is recyclable.
5. dynamic wave chlorine oxidation according to claim 1 is except cobalt technique, and it is characterized in that, in described step 7, absorb remaining chlorine by adding sodium hydroxide lye, tail gas is discharged through blower fan.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109279665B (en) * | 2018-09-13 | 2020-09-25 | 郑忆依 | Treatment method of nickel cobalt lithium manganate ternary waste |
| CN109797406B (en) * | 2019-03-20 | 2023-06-27 | 金川集团股份有限公司 | Device and method for reducing nickel content in cobalt removal slag of chlorine |
| CN110358915B (en) * | 2019-07-11 | 2020-12-04 | 兰州理工大学 | Method for separating nickel and cobalt ions in electrolytic solution |
| CN112387050B (en) * | 2020-11-13 | 2022-06-10 | 攀枝花钢企欣宇化工有限公司 | Magnesium electrolysis chlorine gas purification process |
| CN113957490A (en) * | 2021-11-05 | 2022-01-21 | 金川集团股份有限公司 | Electrolytic nickel purification and impurity removal reaction tank and method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724179B2 (en) * | 1998-03-19 | 2005-12-07 | 住友金属鉱山株式会社 | Separation of alkaline earth metals from aqueous cobalt solutions |
| CN101463427A (en) * | 2008-11-27 | 2009-06-24 | 佛山市邦普镍钴技术有限公司 | Method for recycling valuable metal from cobalt white alloy |
| CN102230185A (en) * | 2011-06-20 | 2011-11-02 | 南通新玮镍钴科技发展有限公司 | Device and method for absorbing chlorine acid mist in electrodeposited cobalt production process |
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- 2013-07-26 CN CN201310331269.3A patent/CN103361483B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724179B2 (en) * | 1998-03-19 | 2005-12-07 | 住友金属鉱山株式会社 | Separation of alkaline earth metals from aqueous cobalt solutions |
| CN101463427A (en) * | 2008-11-27 | 2009-06-24 | 佛山市邦普镍钴技术有限公司 | Method for recycling valuable metal from cobalt white alloy |
| CN102230185A (en) * | 2011-06-20 | 2011-11-02 | 南通新玮镍钴科技发展有限公司 | Device and method for absorbing chlorine acid mist in electrodeposited cobalt production process |
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