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1. CN112079371 - Recovery method for removing fluorine from nickel-cobalt-manganese solution

Office
China
Application Number 202010857411.8
Application Date 24.08.2020
Publication Number 112079371
Publication Date 15.12.2020
Publication Kind A
IPC
C01F 7/54
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE EARTH METALS
7Compounds of aluminium
48Aluminium halides
50Fluorides
54Double compounds containing both aluminium and alkali metals or alkaline earth metals
H01M 10/54
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
54Reclaiming serviceable parts of waste accumulators
CPC
C01F 7/54
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
7Compounds of aluminium
48Aluminium halides
50Fluorides
54Double compounds containing both aluminium and alkali metals or alkaline-earth metals
H01M 10/54
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
54Reclaiming serviceable parts of waste accumulators
C01P 2006/80
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
2006Physical properties of inorganic compounds
80Compositional purity
Y02W 30/84
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
30Technologies for solid waste management
50Reuse, recycling or recovery technologies
84Recycling of batteries or fuel cells
Applicants HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD.
湖南邦普循环科技有限公司
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.
广东邦普循环科技有限公司
HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD.
湖南邦普汽车循环有限公司
Inventors HE FANG
何芳
CHEN ZHIXIN
谌志新
CHEN RUOKUI
陈若葵
RUAN DINGSHAN
阮丁山
LI CHANGDONG
李长东
Agents 广州嘉权专利商标事务所有限公司 44205
Title
(EN) Recovery method for removing fluorine from nickel-cobalt-manganese solution
(ZH) 一种镍钴锰溶液中除氟的回收方法
Abstract
(EN) The invention relates to a recovery method for removing fluorine from a nickel-cobalt-manganese solution. The method comprises the following steps of: carrying out acid leaching and impurity removal on battery powder to obtain a fluorine-containing nickel-cobalt-manganese solution; mixing the obtained fluorine-containing nickel-cobalt-manganese solution with a fluorine removal agent to obtain a mixed slurry; adjusting the pH value of the obtained mixed slurry to 2-5, and performing filtering to obtain a first-stage defluorination filtrate and a first-stage fluorine-containing filter residue; washing the first-stage fluorine-containing filter residue, adding the washed first-stage fluorine-containing filter residue into alkali liquor, performing heating and stirring, and conducting filtering to obtain fluorine-containing filtrate and nickel-cobalt-manganese-containing filter residue. The method disclosed by the embodiment of the invention has a good fluorine removal effect in the front-section nickel-cobalt-manganese solution, meanwhile, other impurities are not introduced, the obtained fluorine-containing filter residue can meet the requirements of industrial cryolite products after being purified, and the method has great economic benefits.
(ZH) 本发明涉及一种镍钴锰溶液中除氟的回收方法,包括以下步骤:将电池粉料进行酸浸、除杂后,得到含氟的镍钴锰溶液;将所得含氟的镍钴锰溶液与除氟剂混合,得到混合浆料;将所得混合浆料调节pH至2‑5,经过滤得到一段除氟滤液和一段含氟滤渣;将一段含氟滤渣洗涤后加入碱液中,加热搅拌,经过滤得到含氟滤液和含镍钴锰滤渣。本发明实施例的方法在前段镍钴锰溶液中具有较好的除氟效果,同时不引入其它杂质,并且得到的含氟滤渣进行提纯处理后可以达到工业冰晶石产品要求,具有较大的经济效益。
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