WO2001021846A1 - Recuperation de sels et de plomb metal a valeur marchande a partir de minerais de plomb ou d'accumulateurs au plomb uses avec une solution de lixiviation a base d'acide acetique - Google Patents

Recuperation de sels et de plomb metal a valeur marchande a partir de minerais de plomb ou d'accumulateurs au plomb uses avec une solution de lixiviation a base d'acide acetique Download PDF

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Publication number
WO2001021846A1
WO2001021846A1 PCT/IB2000/001302 IB0001302W WO0121846A1 WO 2001021846 A1 WO2001021846 A1 WO 2001021846A1 IB 0001302 W IB0001302 W IB 0001302W WO 0121846 A1 WO0121846 A1 WO 0121846A1
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WO
WIPO (PCT)
Prior art keywords
lead
negative
reduction potential
metal
mentioned
Prior art date
Application number
PCT/IB2000/001302
Other languages
English (en)
Inventor
Abdel Hakim Kaddouri
Original Assignee
Interpole Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9921879A external-priority patent/GB9921879D0/en
Application filed by Interpole Limited filed Critical Interpole Limited
Priority to AU68610/00A priority Critical patent/AU6861000A/en
Publication of WO2001021846A1 publication Critical patent/WO2001021846A1/fr

Links

Classifications

    • 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
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
    • C22B3/1608—Leaching with acyclic or carbocyclic agents
    • C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
    • C22B3/165—Leaching with acyclic or carbocyclic agents of a single type with organic acids
    • 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
    • C22B13/00—Obtaining lead
    • C22B13/04—Obtaining lead by wet processes
    • C22B13/045—Recovery from waste materials
    • 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
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • C22B3/46—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes by substitution, e.g. by cementation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/54—Reclaiming serviceable parts of waste accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/06—Lead-acid accumulators
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/84—Recycling of batteries or fuel cells

Definitions

  • the ferrous salts present in the solution reduce the insoluble lead (IV) oxide in soluble lead (II) salts which react with metallic iron to give metallic lead.
  • I f other metal with a reduction potential more negative than leads are employed it is necessary to reduce the lead dioxide by thermal treatment or chemical reactions as for instance with hydrogen peroxide.
  • the new method also does not produce toxic gaseous emissions. It allows the recovery of lead with a low energetic consumption and with a very low production of slags .
  • the present invention relates to lead recovery from exhausted acid-lead storage batteries and from lead ores .
  • Pyrometallurgic processes also include the use of fluxing substrates to get an easier separation of melted lead from gangue and produce slags that must be discharged as toxic materials.
  • EPO 812923 Al patent extended in the USA (Application No. 08/ 874542) , describes alternative hydrometallurgic method for secondary lead recovery from electrode paste, based on a series o f redox reactions in acid aqueous solutions at a temperature lower than 1000C between bivalent lead compounds, kept in solution using suitable saline solutions, and metallic iron.
  • a solution pH between 0 and 8 with an acetic acid concentration less than 10% is claimed.
  • ferrous ions are generated which reduce lead oxide (IV) to lead (II) , which is then reduced by metallic iron.
  • EPO 812923 Al patent does not indicate any method for lead recovery from ores (primary lead) but one method for secondary lead recovery from exhausted batteries.
  • the present invention is constituted by a process for the recovery of metallic lead from lead ores and from exhausted lead-acid storage batteries, characterised by the following operations: 1 ) treatment pf the above mentioned substances , with or without preliminary preparation with an acid aqueous solution whose lead (II) salts are soluble and with a metal less mobile than lead; or with a concentrated solution of acetic acid and ammonium acetate where lead (II) salts are soluble and with a metal having a reduction potential more negative than lead; the lead compounds present in the solution can be substituted by the above mentioned metal with a reduction potential more negative than lead.
  • the ferrous salts present in the solution reduce the insoluble lead dioxide in soluble lead (II salts which react with metallic iron to give metallic lead. If other metal with a reduction potential more negative than lead are employed it is necessary to reduce the lead dioxide by thermal treatment or chemical reactions as for instance with hydrogen peroxide;
  • the new patent even though based on redox reactions between lead compounds (II) and (IV) with metals having a reduction potential more negative than lead already described in EPO 812923 A l patent, greatly simplify these processes because it uses a medium, in which lead (II) salts are soluble and redox reactions take place, an acid aqueous solution (containing the salts of the metal with a reduction potential more negative than lead) in a first way or in a second way a very concentrated solution of acetic acid containing ammonium acetate.
  • the new process also allows metallic lead to be obtained from ores, such as galena, operating at a temperature lower than 4500C and in comparison with the traditional pyrometallurgical process there is obtained great energy and pollution savings.
  • HS is an acid whose lead salts are soluble in water in the first way and acetic acid in the second way
  • mixtures to be treated contain not only sulfate, lead monoxide and carbonate, but also lead dioxide, Pb02, such as those typically coming from acid-lead exhausted batteries , it is possible to operate in different ways:
  • a first method provides the heating of the mixture at a temperature higher than 4000C without adding any magnet in order to decompose the lead dioxide to lead oxide (II) and oxygen. This is a well known reaction and is also described in EPO 812923 Al patent extended in the USA (Application No. 08/874542) .
  • Lead recovery from the lead (II) oxide formed by the thermic dioxide decomposition takes place according to the 1) and 2) reactions .
  • a second method provides the mixture treatment with hydrogen peroxide in order to obtain the following reaction:
  • the resulting solution is treated with the metal with a reduction potential more negative than lead according with the 2) reaction to carry out the quantitative lead.
  • the last methods (1 1 , 12) are only carried out when iron is not used as the reducing metal because the iron (II) salts react with lead (IV) oxide by the following reaction and reduce it to lead (II) compound so that the previous thermic or chemical treatment is useless .
  • a suitable reactor containing 5000 ml o f an acetic acid aqueous solution with a concentration o f 10% in weight.
  • the solid mass is subjected to an energic agitation and milling action to disgregate all the solid grey substance particles present in the electrode paste. If all the operations described in the examples are carried out with only a mechanical agitation, at the end o f the recovery treatment, there remains a percentage between 50 and 70% o f the grey coloured mass, which is not reached while, using simultaneously a double action (agitation and milling) , the entire grey mass is disgregated and it reacts .
  • the suspension is heated at a temperature of 60oC and maintained at this temperature for 30 mins under agitation and milling, avoiding contact with air by keeping a slight nitrogen pressure inside the reactor. Subsequently, 500 grams of metallic iron shavings is added, an amount that exceeds what is needed, regarding the process stechiometry quantity and the mass is kept under agitation and milling for 45 mins at900C.
  • the aqueous phase is separated from the solid one by filtering and 243 grams of non reacted iron can be separated and can be recycled for the lead recovery process; this means that the iron used is 257 grams .
  • the remaining solid is washed with water and elemental analysis is performed on it giving a result that is composed o f 99,97- 99,99% of metallic lead and the rest of extraneous metals formerly contained in the iron shavings used, such as nichel and manganese.
  • the obtained lead is compressed in small cylinders with an apparent density o f 9.900- 10.000 g/dm3 with a metallic appearance. These cylinders are placed in a refractory material crucible and heated until 5500C obtaining 684 grams of melted lead with a recovery efficiency higher than 99%.
  • the recovered solution is acidified using 1500 grams o f sulphuric acid at 30% and is heated, recovering all the acetic acid formerly used in the test by distillation. From the distiller, 1290 grams o f a crystalline solid constituted by crystallised iron sulfate is also recovered. This product is widely used in many activities, from waste water treatment to agriculture, so its emission in the market does not represent a problem.
  • the remaining solid is washed with water and the elemental analysis is performed on it giving a result that is composed of 99,97-00,99% metallic lead and the rest is extraneous metals formerly contained in the iron shavings used, such as nichel and manganese.
  • the obtained lead is compressed in small cylinders with an apparent density of 9.900- 10.000 g/dm3 with a metallic appearance. These cylinders are placed in a refractory material crucible and heated until 5500C obtaining 681 grams of melted lead.
  • the recovered solution is treated with 220 g of sulphuric acid at 96 and cooled at 200C.
  • a great amount o f a white solid separates: it is iron sulphate which represents about 98% of the total iron (II) ions present in the solution.
  • This solid is separated by filtering and the limpid solution containing an amount of lead in the quantity of p. p .m. , is recycled to the process.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Electrochemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention concerne un procédé de récupération de plomb métal à partir de substances renfermant du plomb, tels que les minerais de plomb de galène ou les accumulateurs au plomb usés. Ce procédé consiste à traiter les substances contenant du plomb, avec ou sans préparation préliminaire comme par exemple le chauffage ou le grillage dans de l'air pauvre en oxygène, avec une solution acide aqueuse dans laquelle les sels de plomb (II) sont solubles, particulièrement avec une solution à base d'acide acétique concentrée contenant de l'acétate d'ammonium dans lequel les sels de plomb (II) sont solubles, et en utilisant un métal qui présente un potentiel de réduction plus négatif que le plomb. Le plomb métal est ensuite récupéré en séparant ce dernier de la substance renfermant le plomb. Pour ce faire, le plomb est précipité ou cimenté avec un métal, tel que le fer ou le zinc, présentant un potentiel de réduction plus négatif que le plomb. La solution d'acide aqueuse obtenue contenant des ions du métal présentant un potentiel de réduction plus négatif que le plomb, particulièrement le fer, est traitée pour récupérer l'acide acétique et pour précipiter le sulphate-hydrate ferreux. Dans une variante, l'acide acétique concentré contenant l'acétate d'ammonium est refroidi et traité pour précipiter les composés voulus dudit métal présentant un potentiel de réduction plus négatif que le plomb.
PCT/IB2000/001302 1999-09-17 2000-09-14 Recuperation de sels et de plomb metal a valeur marchande a partir de minerais de plomb ou d'accumulateurs au plomb uses avec une solution de lixiviation a base d'acide acetique WO2001021846A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU68610/00A AU6861000A (en) 1999-09-17 2000-09-14 Recovery of metallic lead and salt value from lead ores or from spent lead-acid storage batteries with acetic acid lixiviant

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9921879.4 1999-09-17
GB9921879A GB9921879D0 (en) 1999-09-17 1999-09-17 Method to obtain metallic lead either from lead ores or from exhausted lead-acid storage batteries
GB0019319A GB2354261A (en) 1999-09-17 2000-08-08 Method to obtain metallic lead and salts having commercial value either from lead ores or from exhausted lead-acid storage batteries
GB0019319.3 2000-08-08

Publications (1)

Publication Number Publication Date
WO2001021846A1 true WO2001021846A1 (fr) 2001-03-29

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AU (1) AU6861000A (fr)
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087684A1 (fr) 2007-01-17 2008-07-24 Millbrook Lead Recycling Technologies Limited Récupération du plomb sous forme de carbonates de plomb de grande pureté à partir de batteries au plomb usées contenant de la pâte à électrodes
CN104388674A (zh) * 2014-10-29 2015-03-04 昆明理工大学 一种从氧化铅矿中回收铅的浸出方法及其浸出剂
CN105463207A (zh) * 2015-11-30 2016-04-06 湘潭大学 一种利用硫酸铅浸出液制备有机酸铅盐的方法
US9533273B2 (en) 2014-06-20 2017-01-03 Johnson Controls Technology Company Systems and methods for isolating a particulate product when recycling lead from spent lead-acid batteries
CN106299522A (zh) * 2016-08-25 2017-01-04 四川荣联电子科技有限公司 能检测铅纯度的废旧铅酸蓄电池处理系统
US9670565B2 (en) 2014-06-20 2017-06-06 Johnson Controls Technology Company Systems and methods for the hydrometallurgical recovery of lead from spent lead-acid batteries and the preparation of lead oxide for use in new lead-acid batteries
IT201600089470A1 (it) * 2016-09-05 2018-03-05 Giovanni Modica Processo per ottenere piombo metallico dai composti del piombo presenti in una batteria piombo acido a fine mediante reazione con zinco metallico.
US10062933B2 (en) 2015-12-14 2018-08-28 Johnson Controls Technology Company Hydrometallurgical electrowinning of lead from spent lead-acid batteries
WO2022029531A1 (fr) * 2020-08-04 2022-02-10 Enn.Co Srl Procédé à faible impact environnemental et consommation d'énergie réduite pour la récupération de plomb à partir des pâtes d'électrode de batteries en fin de vie
CN116606204A (zh) * 2023-07-17 2023-08-18 成都普什医药塑料包装有限公司 低色度醋酐与醋酸纤维素用回收醋酸及其回收方法和应用

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Publication number Priority date Publication date Assignee Title
DE165869C (fr) * 1900-01-01
DE447686C (de) * 1923-05-12 1928-01-20 Metalurgica Chilena Cuprum Soc Gewinnung von Silber oder Silbdr und Blei gemeinsam aus ihren reinen Sauerstoffverbindungen
US3196001A (en) * 1962-09-05 1965-07-20 Orrin F Marvin Recovery of metal values from complex ores
DE2424608A1 (de) * 1973-05-21 1974-12-12 Metallurgie Hoboken Verfahren zur rueckgewinnung von blei und silber aus bleisulfat enthaltenden rueckstaenden
US3933973A (en) * 1973-10-16 1976-01-20 Sherritt Gordon Mines Limited Treatment of lead sulphide bearing material
EP0059806A1 (fr) * 1981-03-12 1982-09-15 Institute Of Nuclear Energy Research Procédé de traitement de boue anodique
SU1254043A1 (ru) * 1985-01-14 1986-08-30 Казахский Ордена Трудового Красного Знамени Государственный Университет Им.С.М.Кирова Способ извлечени церуссита из полиметаллических и колчеданно-полиметаллических руд,содержащих свинец
US5523066A (en) * 1994-06-08 1996-06-04 Centaur Mining Exploration Limited Treatment of lead sulphide bearing minerals
EP0812923A1 (fr) * 1996-06-14 1997-12-17 Ente per le Nuove Tecnologie, l'Energia e l'Ambiente - ENEA Méthode améliorée de récupération du plomb de batteries au plomb usagées

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE165869C (fr) * 1900-01-01
DE447686C (de) * 1923-05-12 1928-01-20 Metalurgica Chilena Cuprum Soc Gewinnung von Silber oder Silbdr und Blei gemeinsam aus ihren reinen Sauerstoffverbindungen
US3196001A (en) * 1962-09-05 1965-07-20 Orrin F Marvin Recovery of metal values from complex ores
DE2424608A1 (de) * 1973-05-21 1974-12-12 Metallurgie Hoboken Verfahren zur rueckgewinnung von blei und silber aus bleisulfat enthaltenden rueckstaenden
US3933973A (en) * 1973-10-16 1976-01-20 Sherritt Gordon Mines Limited Treatment of lead sulphide bearing material
EP0059806A1 (fr) * 1981-03-12 1982-09-15 Institute Of Nuclear Energy Research Procédé de traitement de boue anodique
SU1254043A1 (ru) * 1985-01-14 1986-08-30 Казахский Ордена Трудового Красного Знамени Государственный Университет Им.С.М.Кирова Способ извлечени церуссита из полиметаллических и колчеданно-полиметаллических руд,содержащих свинец
US5523066A (en) * 1994-06-08 1996-06-04 Centaur Mining Exploration Limited Treatment of lead sulphide bearing minerals
EP0812923A1 (fr) * 1996-06-14 1997-12-17 Ente per le Nuove Tecnologie, l'Energia e l'Ambiente - ENEA Méthode améliorée de récupération du plomb de batteries au plomb usagées

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198717, Derwent World Patents Index; Class J01, AN 1987-120662, XP002158393 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008087684A1 (fr) 2007-01-17 2008-07-24 Millbrook Lead Recycling Technologies Limited Récupération du plomb sous forme de carbonates de plomb de grande pureté à partir de batteries au plomb usées contenant de la pâte à électrodes
US7998440B2 (en) 2007-01-17 2011-08-16 Millbrook Lead Recycling Technologies Limited Reclaiming of lead in form of high purity lead compound from recovered electrode paste slime of dismissed lead batteries and/or of lead minerals
US8147780B2 (en) 2007-01-17 2012-04-03 Millbrook Lead Recycling Technologies Limited Recovery of lead in form of high purity lead carbonates from spent lead batteries incl. electrode paste
US9757702B2 (en) 2014-06-20 2017-09-12 Johnson Controls Technology Company Systems and methods for purifying and recycling lead from spent lead-acid batteries
US11005129B2 (en) 2014-06-20 2021-05-11 Clarios Germany Gmbh & Co. Kgaa Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US9533273B2 (en) 2014-06-20 2017-01-03 Johnson Controls Technology Company Systems and methods for isolating a particulate product when recycling lead from spent lead-acid batteries
US11923518B2 (en) 2014-06-20 2024-03-05 Clarios Advanced Germany Gmbh & Co. KG Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US9555386B2 (en) 2014-06-20 2017-01-31 Johnson Controls Technology Company Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US9670565B2 (en) 2014-06-20 2017-06-06 Johnson Controls Technology Company Systems and methods for the hydrometallurgical recovery of lead from spent lead-acid batteries and the preparation of lead oxide for use in new lead-acid batteries
US9751067B2 (en) 2014-06-20 2017-09-05 Johnson Controls Technology Company Methods for purifying and recycling lead from spent lead-acid batteries
US11791505B2 (en) 2014-06-20 2023-10-17 Cps Technology Holdings Llc Methods for purifying and recycling lead from spent lead-acid batteries
US10777858B2 (en) 2014-06-20 2020-09-15 Cps Technology Holdings Llc Methods for purifying and recycling lead from spent lead-acid batteries
US10403940B2 (en) 2014-06-20 2019-09-03 Cps Technology Holdings Llc Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US10122052B2 (en) 2014-06-20 2018-11-06 Johnson Controls Technology Company Systems and methods for purifying and recycling lead from spent lead-acid batteries
CN104388674A (zh) * 2014-10-29 2015-03-04 昆明理工大学 一种从氧化铅矿中回收铅的浸出方法及其浸出剂
CN105463207A (zh) * 2015-11-30 2016-04-06 湘潭大学 一种利用硫酸铅浸出液制备有机酸铅盐的方法
US10062933B2 (en) 2015-12-14 2018-08-28 Johnson Controls Technology Company Hydrometallurgical electrowinning of lead from spent lead-acid batteries
CN106299522A (zh) * 2016-08-25 2017-01-04 四川荣联电子科技有限公司 能检测铅纯度的废旧铅酸蓄电池处理系统
IT201600089470A1 (it) * 2016-09-05 2018-03-05 Giovanni Modica Processo per ottenere piombo metallico dai composti del piombo presenti in una batteria piombo acido a fine mediante reazione con zinco metallico.
WO2022029531A1 (fr) * 2020-08-04 2022-02-10 Enn.Co Srl Procédé à faible impact environnemental et consommation d'énergie réduite pour la récupération de plomb à partir des pâtes d'électrode de batteries en fin de vie
CN116606204A (zh) * 2023-07-17 2023-08-18 成都普什医药塑料包装有限公司 低色度醋酐与醋酸纤维素用回收醋酸及其回收方法和应用
CN116606204B (zh) * 2023-07-17 2023-10-20 成都普什医药塑料包装有限公司 低色度醋酐与醋酸纤维素用回收醋酸及其回收方法和应用

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