CN101195862A - Method for purifying and cadmium removing from nickel and cobalt solution - Google Patents
Method for purifying and cadmium removing from nickel and cobalt solution Download PDFInfo
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- CN101195862A CN101195862A CNA2007103036344A CN200710303634A CN101195862A CN 101195862 A CN101195862 A CN 101195862A CN A2007103036344 A CNA2007103036344 A CN A2007103036344A CN 200710303634 A CN200710303634 A CN 200710303634A CN 101195862 A CN101195862 A CN 101195862A
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- nickel
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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 method of purifying and removing cadmium from nickel cobalt solution, which relates to a method of purifying cadmium from the nickel cobalt solution during the technical process of producing metallic nickel and cobalt. The invention is characterized in that D201 resin is adopted to perform the ion exchange to the nickel cobalt solution to remove the cadmium in the purifying process. In the method of the invention, the cadmium in the nickel cobalt solution of Cd less than 0.05 g/l is removed through adopting resin deep purification, to ensure Cd in the nickel cobalt solution to be less than 0.0001 g/l after deep purification. Compared with the traditional cadmium removal process, the method of the invention has the remarkable advantages that the process flow is short, the operation is convenient, the production process is easy to be controlled, the raw material consumption and the energy consumption are few, the metal recovery ratio is high, the nickel and cobalt production with high quality can be produced, and the comprehensive utilizing effect is good.
Description
Technical field
A kind of method of purifying and cadmium removing from nickel and cobalt solution relates to a kind of method of cadmium in the purifying Ni and Co solution of producing in metallic nickel or the cobalt technological process.
Background technology
In traditional nickel or cobalt production process, separate the method for removing cadmium in the solution, there are cobalt, nickel solution sodium sulphite to remove the cadmium method usually, hydrolysis removes methods such as cadmium.There is following shortcoming in aforesaid method:
(1) cobalt, nickel solution are through the heavy cadmium of wet method, and the cadmium quantity of slag of output is big, and the cadmium slag contains cobalt or nickel 5%～15%, and cobalt or nickel direct yield are only about 90%;
(2) remove cadmium technology cost height, cobalt or nickel recovery in the cadmium slag are low.Tradition is removed cadmium technology will use sodium sulphite, yellow soda ash etc., and high material consumption, process energy consumption height, labour productivity are low, cause nickel, cobalt hydrometallurgy process for processing cost height; The cadmium slag that tradition is removed cadmium technology output contains cobalt or nickel 5%～15%, and it is big thoroughly to separate difficulty to the cobalt in the cadmium slag or nickel and cadmium, so the cobalt in the cadmium slag or nickel recovery are low; This is unfavorable to raising nickel, the cobalt competitiveness of product in market.
In recent years, people have carried out a large amount of experimental study work around the hydrometallurgical technology critical technological point of removing cadmium in nickel, the cobalt liquor, successively adopt sodium sulphite to remove cadmium method, extraction except that cadmium method, electrodeposition method, hydrolysis method etc., but contain cobalt or nickel height, remove effects limit such as cadmium is not thorough because these method for removing cadmium exist cost height, cadmium slag, seeking the metallurgical technology method that the efficient degree of depth is removed cadmium in nickel, the cobalt liquor always.
Summary of the invention
The objective of the invention is to remove the deficiency that exists in the cadmium technology at tradition, provide a kind of have flow process short, remove that cadmium is thorough, labour intensity is little, the method for the nickel and cobalt solution cadmium separation of low cost and other advantages.
The objective of the invention is to be achieved through the following technical solutions.
A kind of method of purifying and cadmium removing from nickel and cobalt solution is characterized in that its scavenging process is to adopt the D201 resin that nickel and cobalt solution is carried out ion-exchange to remove cadmium.
The method of a kind of purifying and cadmium removing from nickel and cobalt solution of the present invention is characterized in that the step of its scavenging process is:
(1) with pH value be 0.5～2.5, temperature is that 15～35 ℃, flow velocity are 1.0-8.0m
3The nickel and cobalt solution of/h goes out mode on advancing under adopting, and carries out ion-exchange by the D201 resin;
(2) saturated resin is resolved with clear water, during Cd in the desorbed solution＜0.0001g/l, stops to resolve.
The method of a kind of purifying and cadmium removing from nickel and cobalt solution of the present invention, the new resin that it is characterized in that described D201 resin is the rare HCl solution soaking 4h with 4%, wash to neutral with clear water then, standby with the clear water washing again with 4% NaOH solution soaking 4h again to neutrality back dress post.
The method of a kind of purifying and cadmium removing from nickel and cobalt solution of the present invention, it is characterized in that the saturated back of described D201 resin is separated with clear water after, resolve good resin with rare HCl regeneration of 2mol/l, resin is standby behind the regeneration ending.
Method of the present invention, nickel, the cobalt material that will contain cadmium carry out that pulp, acid are molten, copper removal, nickel cobalt separate the nickel and cobalt solution that the back output contains Cd and carry out the ion-exchange purifying treatment.Its principle is chlorion in the chloride nickel and cobalt solution and Cd wherein
2+Form complex anion, resin anion(R.A) can select to adsorb the chlorine complex anion of cadmium after becoming chlorine type resin anion(R.A) transition, thereby realizes removing Cd in the nickel and cobalt solution
2+Purpose.
Method of the present invention to containing the nickel and cobalt solution of Cd＜0.05g/l, adopts the method for resins exchange to reach the purpose that the nickel and cobalt solution degree of depth is removed cadmium, makes the Cd＜0.0001g/l in the nickel and cobalt solution behind the deep purifying.Remove cadmium technology with tradition and compare, it is short to have flow process, easy to operate, and production process is easy to control, and starting material and energy consumption are few, the metal recovery rate height, but the high-quality nickel cobalt of output product fully utilizes the effective remarkable advantage of Denging.
Description of drawings
Fig. 1 is the process flow sheet of method of the present invention.
Embodiment
The method of nickel and cobalt solution cadmium separation adopts ion-exchange except that the cadmium in the nickel and cobalt solution, and its processing condition are:
A) new resin is carried out pre-treatment: newly count fat use before with rare HCl solution soaking 4h of 4%, then with the clear water washing to neutral, it is standby to adorn post with the clear water washing after neutral again with 4% NaOH solution soaking 4h again;
B) contain the nickel and cobalt solution pH value 0.5～2.5 of Cd;
C) go out technology on advancing under solution adopts;
D) solution temperature is controlled to be 15～35 ℃;
E) solution flow rate is 1.0-8.0m3/h;
F) saturated resin is resolved with clear water, during Cd in the desorbed solution＜0.0001g/l, stops to resolve;
G) resolve good resin with rare HCl regeneration of 2mol/l, resin is standby behind the regeneration ending.
In when operation, nickel, the cobalt material that will contain cadmium carries out that pulp, acid are molten, copper removal, nickel cobalt separate the nickel and cobalt solution that the back output contains Cd, through after, guaranteed cobalt, nickel quality product.
Embodiment 1
The cadmium solution Chemical Composition sees Table 1 in the employing D201 resin deep purifying nickel and cobalt solution.
The requirement of table 1 D201 resin deep purifying nickel and cobalt solution Chemical Composition
| PH value | Chemical Composition (g/l) | |||||
| Co | Ni | Cd | Fe | cl - | ||
| Remove the cadmium feed liquid | 0.5 | 90.45 | 0.060 | 0.042 | 0.002 | 142.80 |
Temperature is 20 ℃ and removes the cadmium feed liquid, goes out mode on advancing under adopting, and flow velocity 1.5m3/h is by pretreated D201 resin.
Nickel and cobalt solution Chemical Composition behind the table 2 D201 resin deep purifying
| PH value | Chemical Composition (g/l) | |||||
| Co | Ni | Cd | Fe | Cl - | ||
| Except that liquid behind the cadmium | 0.5 | 90.25 | 0.060 | ＜0.0001 | 0.002 | 142.80 |
Embodiment 2
The cadmium solution Chemical Composition sees Table 3 in the employing D201 resin deep purifying nickel and cobalt solution.
The requirement of table 3 D201 resin deep purifying nickel and cobalt solution Chemical Composition
| PH value | Chemical Composition (g/l) | |||||
| Co | Ni | Cd | Fe | cl - | ||
| Remove the cadmium feed liquid | 1.5 | 110.45 | 0.0056 | 0.022 | 0.001 | 192.80 |
Temperature is 20 ℃ and removes the cadmium feed liquid, goes out mode on advancing under adopting, and flow velocity 2.5m3/h is by the D201 resin behind the regenerated from washing.
Nickel and cobalt solution Chemical Composition behind the table 4 D201 resin deep purifying
| PH value | Chemical Composition (g/l) | |||||
| Co | Ni | Cd | Fe | Cl - | ||
| Except that liquid behind the cadmium | 1.5 | 110.25 | 0.0056 | ＜0.0001 | 0.001 | 192.80 |
Embodiment 3
The cadmium solution Chemical Composition sees Table 5 in the employing D201 resin deep purifying nickel and cobalt solution.
The requirement of table 5 D201 resin deep purifying nickel and cobalt solution Chemical Composition
| PH value | Chemical Composition (g/l) | |||||
| Co | Ni | Cd | Fe | cl - | ||
| Remove the cadmium feed liquid | 2.5 | 120.28 | 0.016 | 0.0062 | 0.0015 | 212.80 |
Temperature is 30 ℃ and removes the cadmium feed liquid, goes out mode on advancing under adopting, and flow velocity 4.5m3/h is by the D201 resin behind the regenerated from washing.
Nickel and cobalt solution Chemical Composition behind the table 6 D201 resin deep purifying
| PH value | Chemical Composition (g/l) | |||||
| Co | Ni | Cd | Fe | Cl - | ||
| Except that liquid behind the cadmium | 2.5 | 120.25 | 0.016 | ＜0.0001 | 0.0015 | 212.80 |
Claims (4)
1. the method for a purifying and cadmium removing from nickel and cobalt solution is characterized in that its scavenging process is to adopt the D201 resin that nickel and cobalt solution is carried out ion-exchange to remove cadmium.
2. the method for a kind of purifying and cadmium removing from nickel and cobalt solution according to claim 1 is characterized in that it is clean
The step of change process is:
(1) with pH value be 0.5～2.5, temperature is that 15～35 ℃, flow velocity are 1.0-8.0m
3The nickel and cobalt solution of/h goes out mode on advancing under adopting, and carries out ion-exchange by the D201 resin;
(2) saturated resin is resolved with clear water, during Cd in the desorbed solution＜0.0001g/l, stops to resolve.
3. the method for a kind of purifying and cadmium removing from nickel and cobalt solution according to claim 1, the new resin that it is characterized in that described D201 resin is the rare HCl solution soaking 4h with 4%, wash to neutral with clear water then, standby with the clear water washing again with 4% NaOH solution soaking 4h again to neutrality back dress post.
4. the method for a kind of purifying and cadmium removing from nickel and cobalt solution according to claim 1, it is characterized in that the saturated back of described D201 resin is separated with clear water after, resolve good resin with rare HCl regeneration of 2mol/l, resin is standby behind the regeneration ending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103036344A CN101195862A (en) | 2007-12-20 | 2007-12-20 | Method for purifying and cadmium removing from nickel and cobalt solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103036344A CN101195862A (en) | 2007-12-20 | 2007-12-20 | Method for purifying and cadmium removing from nickel and cobalt solution |
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| Publication Number | Publication Date |
|---|---|
| CN101195862A true CN101195862A (en) | 2008-06-11 |
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|---|---|---|---|
| CNA2007103036344A Pending CN101195862A (en) | 2007-12-20 | 2007-12-20 | Method for purifying and cadmium removing from nickel and cobalt solution |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060555A (en) * | 2012-12-18 | 2013-04-24 | 浙江华友钴业股份有限公司 | Purification cadmium removal method of nickel cobalt solution containing cadmium |
| CN103846081A (en) * | 2012-12-06 | 2014-06-11 | 新疆中核天山铀业有限公司 | Acidic resolution process for D382 type resin |
| CN108977669A (en) * | 2018-09-13 | 2018-12-11 | 中南大学 | A method of cadmium in high-concentration sulfuric acid cobalt liquor is removed in depth and recycles cadmium |
| CN110042237A (en) * | 2019-04-28 | 2019-07-23 | 西北有色金属研究院 | A method of depth removal cadmium prepares cobalt from cobalt chloride |
| CN110819800A (en) * | 2019-12-07 | 2020-02-21 | 怀化炯诚新材料科技有限公司 | Method for recovering metal from laterite-nickel ore leaching solution by resin |
| CN111826525A (en) * | 2020-07-24 | 2020-10-27 | 广西银亿新材料有限公司 | Method for producing metal cobalt by sulfuric acid system electrodeposition |
| CN113801996A (en) * | 2021-09-06 | 2021-12-17 | 天津市茂联科技有限公司 | Deep purification and impurity removal process for cobalt chloride solution |
-
2007
- 2007-12-20 CN CNA2007103036344A patent/CN101195862A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846081A (en) * | 2012-12-06 | 2014-06-11 | 新疆中核天山铀业有限公司 | Acidic resolution process for D382 type resin |
| CN103846081B (en) * | 2012-12-06 | 2016-06-29 | 新疆中核天山铀业有限公司 | A kind of D382 type resin acidic resolves technique |
| CN103060555A (en) * | 2012-12-18 | 2013-04-24 | 浙江华友钴业股份有限公司 | Purification cadmium removal method of nickel cobalt solution containing cadmium |
| CN103060555B (en) * | 2012-12-18 | 2014-07-16 | 浙江华友钴业股份有限公司 | Purification cadmium removal method of nickel cobalt solution containing cadmium |
| CN108977669A (en) * | 2018-09-13 | 2018-12-11 | 中南大学 | A method of cadmium in high-concentration sulfuric acid cobalt liquor is removed in depth and recycles cadmium |
| CN110042237A (en) * | 2019-04-28 | 2019-07-23 | 西北有色金属研究院 | A method of depth removal cadmium prepares cobalt from cobalt chloride |
| CN110819800A (en) * | 2019-12-07 | 2020-02-21 | 怀化炯诚新材料科技有限公司 | Method for recovering metal from laterite-nickel ore leaching solution by resin |
| CN111826525A (en) * | 2020-07-24 | 2020-10-27 | 广西银亿新材料有限公司 | Method for producing metal cobalt by sulfuric acid system electrodeposition |
| CN111826525B (en) * | 2020-07-24 | 2021-11-26 | 广西银亿新材料有限公司 | Method for producing metal cobalt by sulfuric acid system electrodeposition |
| CN113801996A (en) * | 2021-09-06 | 2021-12-17 | 天津市茂联科技有限公司 | Deep purification and impurity removal process for cobalt chloride solution |
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