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1. WO2022252602 - METHOD FOR SAFELY LEACHING WASTE BATTERY AND APPLICATION

Publication Number WO/2022/252602
Publication Date 08.12.2022
International Application No. PCT/CN2021/142932
International Filing Date 30.12.2021
IPC
C22B 7/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
7Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
C22B 1/02 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
1Preliminary treatment of ores or scrap
02Roasting processes
C22B 26/12 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
26Obtaining alkali, alkaline earth metals or magnesium
10Obtaining alkali metals
12Obtaining lithium
C22B 47/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
47Obtaining manganese
C22B 23/00 2006.1
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION OR REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
23Obtaining nickel or cobalt
B03D 1/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
CPC
B03D 1/00
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
C22B 1/02
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
1Preliminary treatment of ores or scrap
02Roasting processes
C22B 23/0415
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
23Obtaining nickel or cobalt
04by wet processes
0407Leaching processes
0415with acids or salt solutions except ammonium salts solutions
C22B 26/12
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
26Obtaining alkali, alkaline earth metals or magnesium
10Obtaining alkali metals
12Obtaining lithium
C22B 47/00
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
47Obtaining manganese
C22B 7/007
CCHEMISTRY; METALLURGY
22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
BPRODUCTION AND REFINING OF METALS
7Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; ; Methods of a general interest or applied to the winning of more than two metals
006Wet processes
007by acid leaching
Applicants
  • 广东邦普循环科技有限公司 GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. [CN]/[CN]
  • 湖南邦普循环科技有限公司 HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. [CN]/[CN]
  • 湖南邦普汽车循环有限公司 HUNAN BRUNP VEHICLES RECYCLING CO., LTD. [CN]/[CN]
Inventors
  • 余海军 YU, Haijun
  • 钟应声 ZHONG, Yingsheng
  • 谢英豪 XIE, Yinghao
  • 李长东 LI, Changdong
  • 张学梅 ZHANG, Xuemei
Agents
  • 广州华进联合专利商标代理有限公司 ADVANCE CHINA IP LAW OFFICE
Priority Data
202110601341.431.05.2021CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD FOR SAFELY LEACHING WASTE BATTERY AND APPLICATION
(FR) PROCÉDÉ DE LIXIVIATION EN TOUTE SÉCURITÉ D'UNE BATTERIE USAGÉE ET SON APPLICATION
(ZH) 一种废旧电池安全浸出的方法和应用
Abstract
(EN) The present invention relates to the technical field of waste battery recovery. Disclosed are a method for safely leaching a waste battery and an application. The method comprises the following steps: discharging, roasting, and screening a waste lithium battery to obtain copper aluminum foil and battery powder; adding the battery powder to water, and then adding a floatation agent for performing floatation to obtain a floating material and a sediment; using lye to leach the floating material and filtering to obtain a filtrate b and a filter residue a; and washing the filter residue a, filtering to obtain a filter residue c, and adding a leaching agent and a reducing agent for leaching to obtain a leaching liquid. In the present invention, safe, efficient, and low-energy-consumption physical methods such as roasting, screening, and flotation are combined with chemical methods such as dilute alkali dissolution, and aluminum in the waste lithium battery can be removed from the source.
(FR) La présente invention concerne le domaine technique de la récupération de batteries usagées. La divulgation concerne un procédé de lixiviation en toute sécurité d'une batterie usagée et son application. Le procédé comprend les étapes suivantes consistant à : décharger, griller, et tamiser une batterie au lithium usagée pour obtenir une feuille d'aluminium de cuivre et une poudre de batterie ; ajouter la poudre de batterie à de l'eau, puis ajouter un agent de flottaison pour effectuer une flottaison afin d'obtenir un matériau flottant et un sédiment ; utiliser une lessive pour lixivier le matériau flottant et filtrer pour obtenir un filtrat b et un résidu de filtre a ; et laver le résidu de filtre a, filtrer pour obtenir un résidu de filtre c, et ajouter un agent de lixiviation et un agent réducteur pour lixiviation afin d'obtenir un liquide de lixiviation. Dans la présente invention, des procédés physiques sûrs, efficaces, et à faible consommation d'énergie tels que le grillage, le tamisage et la flottaison sont combinés à des procédés chimiques tels que la dissolution à l'alcali dilué, et l'aluminium dans la batterie au lithium usagée peut être retiré de la source.
(ZH) 本发明属于废旧电池回收技术领域,公开了一种废旧电池安全浸出的方法和应用,该方法包括以下步骤:将废旧锂电池进行放电,焙烧,筛选,得到铜铝箔和电池粉;将电池粉加入水中,再加入浮选剂进行浮选,得到漂浮物料和沉淀物质;将漂浮物料用碱液进行浸出,过滤,得到滤液b和滤渣a;将滤渣a进行洗涤,过滤取滤渣c,加入浸出剂和还原剂进行浸出,得到浸出液。本发明利用焙烧、筛选、浮选等安全、高效、低能耗的物理方法以及稀碱溶解等化学方法相结合,能从源头上除掉废弃锂电池中的铝。
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HUP2200293This application is not viewable in PATENTSCOPE because the national phase entry has not been published yet or the national entry is issued from a country that does not share data with WIPO or there is a formatting issue or an unavailability of the application.
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