CN110819800A - Method for recovering metal from laterite-nickel ore leaching solution by resin - Google Patents
Method for recovering metal from laterite-nickel ore leaching solution by resin Download PDFInfo
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- CN110819800A CN110819800A CN201911254230.XA CN201911254230A CN110819800A CN 110819800 A CN110819800 A CN 110819800A CN 201911254230 A CN201911254230 A CN 201911254230A CN 110819800 A CN110819800 A CN 110819800A
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- resin
- liquid
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- nickel
- ion exchange
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
-
- 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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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for recovering metals in a laterite-nickel ore leaching solution by using resin, which comprises the following steps: carrying out iron precipitation and solid-liquid separation on the laterite-nickel ore leaching solution to obtain iron slag and a liquid after iron precipitation; the liquid after iron precipitation passes through a first resin column to obtain a liquid after nickel adsorption and a first ion exchange resin after adsorption; resolving the adsorbed first ion exchange resin to obtain a nickel-containing solution; adjusting the pH value of the nickel-adsorbed liquid to 4.2-5, cooling to 8-15 ℃, crystallizing the nickel-adsorbed liquid, and performing centrifugal separation to obtain magnesium salt and magnesium-extracted liquid; the magnesium-extracted liquid is adsorbed by a second resin column to obtain heavy metal adsorbed liquid and adsorbed second ion exchange resin; analyzing the adsorbed second ion exchange resin to obtain a nickel, cobalt and manganese heavy metal mixed solution and a heavy metal adsorbed solution; wherein the resin in the first resin column and the second resin column is JY58 hydrogen type resin. The method for recovering the metal in the laterite-nickel ore leaching solution by using the resin provided by the invention has the advantages of simple process, low cost and high metal recovery rate.
Description
Technical Field
The invention relates to the technical field of hydrometallurgy, in particular to a method for recovering metals in a laterite-nickel ore leaching solution by using resin.
Background
The laterite-nickel ore has low ore grade and higher smelting cost, and has poor technical economy compared with nickel sulfide ore. Due to the limitation of raw material grade, the key points of development and utilization of the laterite-nickel ore at present are to reduce the production cost and simplify the production flow and production equipment. The method for heap leaching of the laterite-nickel ore under normal pressure can reduce the production cost and improve the productivity, but the technical difficulties still exist in the aspects of purification of the laterite-nickel ore leaching solution and enrichment of valuable metals. The prior art generally adopts an alkali or sulfide sedimentation method to recover valuable metals such as nickel, cobalt, copper and the like in the laterite-nickel ore pickle liquor, and the defects of the process are as follows: firstly, the alkali consumption is high, and the production cost is increased; secondly, the treatment of sulfide is easy to cause pollution and safety accidents; thirdly, the recovery rate of valuable metals such as nickel, cobalt and the like is generally low under the condition of the method.
In view of this, the invention aims to provide a novel process for recovering metals from a laterite-nickel ore leaching solution.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for recovering metals in the laterite-nickel ore leaching solution by using resin, and the method has the characteristics of simple process, low cost and high recovery rate.
In order to solve the problems, the technical scheme of the invention is as follows:
a method for recovering metals in a lateritic nickel ore leaching solution by using resin comprises the following steps:
step S1, carrying out iron precipitation and solid-liquid separation on the laterite-nickel ore leaching solution to obtain iron slag and a liquid after iron precipitation, and adjusting the pH value of the liquid after iron precipitation to 3-4;
step S2, filling JY58 resin into a first ion exchange column to obtain a first resin column, filling tap water into the first resin column until the liquid level is flush with the water level at the liquid inlet so as to ensure that no air exists in the column, and sealing the first resin column;
step S3, enabling the liquid after iron precipitation to pass through a first resin column, and enabling the resin to selectively adsorb nickel to obtain nickel-adsorbed liquid and adsorbed first ion exchange resin;
step S4, analyzing the adsorbed first ion exchange resin to obtain a nickel-containing solution;
step S5, adjusting the pH value of the nickel-adsorbed liquid to 4.2-5, cooling to 8-15 ℃, crystallizing the nickel-adsorbed liquid, and performing centrifugal separation to obtain magnesium salt and magnesium-extracted liquid;
step S6, filling JY58 resin into a second ion exchange column to obtain a second resin column, filling tap water into the second resin column until the liquid level is flush with the water level at the liquid inlet so as to ensure that no air exists in the column, and sealing the second resin column;
step S7, absorbing the magnesium-extracted liquid by a second resin column to obtain heavy metal absorbed liquid and absorbed second ion exchange resin;
step S8, analyzing the adsorbed second ion exchange resin to obtain a nickel, cobalt and manganese heavy metal mixed solution and a heavy metal adsorbed solution, and returning the heavy metal adsorbed solution to the production system for recycling;
wherein the JY58 resin is selected from JY58 hydrogen type resin produced by Bright honest new material science and technology limited.
Further, in steps S4 and S8, the adsorbed first ion exchange resin and the adsorbed second ion exchange resin are desorbed using a sulfuric acid solution with a mass fraction of 15% to 20%, respectively.
Further, in the analysis process, the pH value of the analysis solution is controlled to be 1.0-1.2.
The method for recovering the metal in the laterite-nickel ore leaching solution by using the resin has the beneficial effects that:
the method comprises the steps of firstly, adsorbing the liquid after iron precipitation by using Y58 resin, and recovering to obtain a nickel-containing solution; then cooling and crystallizing the nickel adsorbed liquid, and recovering to obtain magnesium salt; and adsorbing the magnesium-extracted solution again, and recovering to obtain the heavy metal mixed solution of nickel, cobalt and manganese. In addition, JY58 hydrogen-type resin produced by the brilliant new material science and technology limited is adopted as the adsorption resin, so that the adsorption efficiency and the resolution rate are high, and the metal recovery rate is high.
The metal recovery method of the invention has simple process and low cost.
Detailed Description
The following description of the present invention is provided to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention and to make the above objects, features and advantages of the present invention more comprehensible.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A method for recovering metals in a lateritic nickel ore leaching solution by using resin comprises the following steps:
step S1, carrying out iron precipitation and solid-liquid separation on the laterite-nickel ore leaching solution to obtain iron slag and a liquid after iron precipitation, and adjusting the pH value of the liquid after iron precipitation to 3-4;
step S2, filling JY58 resin into a first ion exchange column to obtain a first resin column, filling tap water into the first resin column until the liquid level is flush with the water level at the liquid inlet so as to ensure that no air exists in the column, and sealing the first resin column;
step S3, enabling the liquid after iron precipitation to pass through a first resin column, and enabling the resin to selectively adsorb nickel to obtain nickel-adsorbed liquid and adsorbed first ion exchange resin;
step S4, analyzing the adsorbed first ion exchange resin to obtain a nickel-containing solution;
step S5, adjusting the pH value of the nickel-adsorbed liquid to 4.2-5, cooling to 8-15 ℃, crystallizing the nickel-adsorbed liquid, and performing centrifugal separation to obtain magnesium salt and magnesium-extracted liquid;
step S6, filling JY58 resin into a second ion exchange column to obtain a second resin column, filling tap water into the second resin column until the liquid level is flush with the water level at the liquid inlet so as to ensure that no air exists in the column, and sealing the second resin column;
step S7, absorbing the magnesium-extracted liquid by a second resin column to obtain heavy metal absorbed liquid and absorbed second ion exchange resin;
step S8, analyzing the adsorbed second ion exchange resin to obtain a nickel, cobalt and manganese heavy metal mixed solution and a heavy metal adsorbed solution, and returning the heavy metal adsorbed solution to the production system for recycling;
wherein the JY58 resin is selected from JY58 hydrogen type resin produced by Bright honest new material science and technology limited.
In the invention, in steps S4 and S8, sulfuric acid solution with the mass fraction of 15% -20% is respectively adopted to analyze the adsorbed first ion exchange resin and the adsorbed second ion exchange resin; during the analysis, the pH value of the analysis solution is controlled to be 1.0-1.2.
The method for recovering the metal in the laterite-nickel ore leaching solution by using the resin has the beneficial effects that:
the method comprises the steps of firstly, adsorbing the liquid after iron precipitation by using Y58 resin, and recovering to obtain a nickel-containing solution; then cooling and crystallizing the nickel adsorbed liquid, and recovering to obtain magnesium salt; and adsorbing the magnesium-extracted solution again, and recovering to obtain the heavy metal mixed solution of nickel, cobalt and manganese. In addition, JY58 hydrogen-type resin produced by the brilliant new material science and technology limited is adopted as the adsorption resin, so that the adsorption efficiency and the resolution rate are high, and the metal recovery rate is high.
The metal recovery method of the invention has simple process and low cost.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and alterations to these embodiments will occur to those skilled in the art without departing from the spirit and scope of the present invention.
Claims (3)
1. A method for recovering metals in a lateritic nickel ore leaching solution by using resin is characterized by comprising the following steps:
step S1, carrying out iron precipitation and solid-liquid separation on the laterite-nickel ore leaching solution to obtain iron slag and a liquid after iron precipitation, and adjusting the pH value of the liquid after iron precipitation to 3-4;
step S2, filling JY58 resin into a first ion exchange column to obtain a first resin column, filling tap water into the first resin column until the liquid level is flush with the water level at the liquid inlet so as to ensure that no air exists in the column, and sealing the first resin column;
step S3, enabling the liquid after iron precipitation to pass through a first resin column, and enabling the resin to selectively adsorb nickel to obtain nickel-adsorbed liquid and adsorbed first ion exchange resin;
step S4, analyzing the adsorbed first ion exchange resin to obtain a nickel-containing solution;
step S5, adjusting the pH value of the nickel-adsorbed liquid to 4.2-5, cooling to 8-15 ℃, crystallizing the nickel-adsorbed liquid, and performing centrifugal separation to obtain magnesium salt and magnesium-extracted liquid;
step S6, filling JY58 resin into a second ion exchange column to obtain a second resin column, filling tap water into the second resin column until the liquid level is flush with the water level at the liquid inlet so as to ensure that no air exists in the column, and sealing the second resin column;
step S7, absorbing the magnesium-extracted liquid by a second resin column to obtain heavy metal absorbed liquid and absorbed second ion exchange resin;
step S8, analyzing the adsorbed second ion exchange resin to obtain a nickel, cobalt and manganese heavy metal mixed solution and a heavy metal adsorbed solution, and returning the heavy metal adsorbed solution to the production system for recycling;
wherein the JY58 resin is selected from JY58 hydrogen type resin produced by Bright honest new material science and technology limited.
2. The method for recovering metals from lateritic nickel ore leachate according to the claim 1, characterized in that in steps S4 and S8, the adsorbed first ion exchange resin and the adsorbed second ion exchange resin are respectively desorbed by using a sulfuric acid solution with a mass fraction of 15% -20%.
3. The method for recovering metals in the leachate of lateritic nickel ores by using the resin according to the claim 2, characterized in that the pH value of the desorption solution is controlled to be 1.0-1.2 during the desorption process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254230.XA CN110819800A (en) | 2019-12-07 | 2019-12-07 | Method for recovering metal from laterite-nickel ore leaching solution by resin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911254230.XA CN110819800A (en) | 2019-12-07 | 2019-12-07 | Method for recovering metal from laterite-nickel ore leaching solution by resin |
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| CN110819800A true CN110819800A (en) | 2020-02-21 |
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| CN201911254230.XA Pending CN110819800A (en) | 2019-12-07 | 2019-12-07 | Method for recovering metal from laterite-nickel ore leaching solution by resin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549238A (en) * | 2020-04-15 | 2020-08-18 | 广西赛可昱新材料科技有限公司 | Method for producing high-grade nickel hydroxide from laterite-nickel ore leaching solution |
Citations (6)
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|---|---|---|---|---|
| WO2006113944A1 (en) * | 2005-04-18 | 2006-10-26 | Edmund Kevin Hardwick | Separation of nickel from cobalt by using chloridizing solution and cobalt-selective resin |
| CN101195862A (en) * | 2007-12-20 | 2008-06-11 | 金川集团有限公司 | Method for purifying and cadmium removing from nickel and cobalt solution |
| WO2008080209A1 (en) * | 2006-12-29 | 2008-07-10 | Companhia Vale Do Rio Doce | Process for recovery of nickel and cobalt from an ion-exchange resin eluate and product |
| CN106282560A (en) * | 2016-04-28 | 2017-01-04 | 南京霖厚环保科技有限公司 | In acid solution containing nickel, the extraction and cleaning of nickel controls technique |
| CN108342570A (en) * | 2018-03-15 | 2018-07-31 | 李宾 | The method that nickel in the pickle liquor of lateritic nickel ore or tailing is purified using inorganic type ion exchange resin |
| CN109593961A (en) * | 2018-12-19 | 2019-04-09 | 广西银亿新材料有限公司 | The method that resin adsorption method recycles metal and output magnesium salts in red soil nickel ore leaching liquid |
-
2019
- 2019-12-07 CN CN201911254230.XA patent/CN110819800A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006113944A1 (en) * | 2005-04-18 | 2006-10-26 | Edmund Kevin Hardwick | Separation of nickel from cobalt by using chloridizing solution and cobalt-selective resin |
| WO2008080209A1 (en) * | 2006-12-29 | 2008-07-10 | Companhia Vale Do Rio Doce | Process for recovery of nickel and cobalt from an ion-exchange resin eluate and product |
| CN101195862A (en) * | 2007-12-20 | 2008-06-11 | 金川集团有限公司 | Method for purifying and cadmium removing from nickel and cobalt solution |
| CN106282560A (en) * | 2016-04-28 | 2017-01-04 | 南京霖厚环保科技有限公司 | In acid solution containing nickel, the extraction and cleaning of nickel controls technique |
| CN108342570A (en) * | 2018-03-15 | 2018-07-31 | 李宾 | The method that nickel in the pickle liquor of lateritic nickel ore or tailing is purified using inorganic type ion exchange resin |
| CN109593961A (en) * | 2018-12-19 | 2019-04-09 | 广西银亿新材料有限公司 | The method that resin adsorption method recycles metal and output magnesium salts in red soil nickel ore leaching liquid |
Non-Patent Citations (1)
| Title |
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| 齐美玲: "《定量化学分析》", 31 January 2018 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111549238A (en) * | 2020-04-15 | 2020-08-18 | 广西赛可昱新材料科技有限公司 | Method for producing high-grade nickel hydroxide from laterite-nickel ore leaching solution |
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Application publication date: 20200221 |