CN1015383B - 电解用铅银钙稀土多元不溶性合金阳极及其制法 - Google Patents

电解用铅银钙稀土多元不溶性合金阳极及其制法

Info

Publication number
CN1015383B
CN1015383B CN89103823A CN89103823A CN1015383B CN 1015383 B CN1015383 B CN 1015383B CN 89103823 A CN89103823 A CN 89103823A CN 89103823 A CN89103823 A CN 89103823A CN 1015383 B CN1015383 B CN 1015383B
Authority
CN
China
Prior art keywords
alloy
alloy anode
lead
silver
anode
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CN89103823A
Other languages
English (en)
Other versions
CN1047709A (zh
Inventor
汪大成
杨光棣
金开胜
熊永升
房晓辉
杨儒鑫
黄健
苏向东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou New Materials Research Base
Original Assignee
Guizhou New Materials Research Base
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
Application filed by Guizhou New Materials Research Base filed Critical Guizhou New Materials Research Base
Priority to CN89103823A priority Critical patent/CN1015383B/zh
Publication of CN1047709A publication Critical patent/CN1047709A/zh
Publication of CN1015383B publication Critical patent/CN1015383B/zh
Expired legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Electrolytic Production Of Metals (AREA)

Abstract

利用金属钙和混合稀土金属对铅—银二元合金阳极进行调质强化处理,可使铅—银二元合金阳极的含银量降低80%,大幅度地降低了合金阳极的生产成本。该合金阳极具有优良的机械和抗腐蚀性能,能在工业化电解锌的工艺条件下得到含铅低于0.005%的电解锌,并由于抗腐蚀性能提高3~7倍,延长了阳极寿命,使电锌的阳极单耗降低至2公斤/吨锌左右。这种铅—银—钙—稀土多元合金阳极可用于湿法电锌、湿法电铜等电冶金过程。

Description

本发明涉及一种电解用不溶性合金阳极及其制造方法。该种不溶性合金阳极主要用于锌的电冶金过程,也可作为其它金属电冶金过程(如电解锰、湿法炼铜)的不溶性阳极。现有的铅-银(1%)二元合金阳极由于机械强度低,在工业电解过程中常常因弯曲变形而导致短路;而且该二元合金阳极的抗腐蚀性能差,致使电锌的阳极单耗高达6~15公斤/吨锌,同时该二元合金阳极含银量高(每吨10公斤),使阳极生产成本高。本发明便是针对上述缺点,对不溶性合金阳极的成分作了改进,制造了一种新型的铅银钙稀土多元不溶性合金阳极。
本发明利用钙和稀土金属,对铅基体进行强化处理,同时将铅-银(1%)二元合金的银用量减少80%,用所获新型合金轧制的不溶性阳极的机械强度提高3~4倍,抗腐蚀性能提高3~7倍。从而节约了贵金属银,降低了阳极的生产成本,又延长了阳极的使用寿命,使电锌阳极单耗降至2公斤/吨锌左右。
本发明的要点:
1.在熔化炉内将电铅在340℃熔化,按合金含银0.15~0.3%加入金属银,待熔化后升温至630℃±,按合金含铝0.01~0.1%加入金属铝,降温至580℃±,分别按合金含钙0.06~0.15%,合金含混合稀土金属0.01~0.1%加入金属钙和混合稀土金属,搅拌30分钟后静置30分钟,除去浮渣,铸成合金坯料,冷却后轧制或铸造成所要求尺寸的合金阳极。
本合金阳极也可以用Pb~Ca母合金配制。
2.本发明的合金阳极的熔炼、铸造、轧制均在空气中进行,无须氮气或惰性气体保护,合金中易烧损元素-钙的含量稳定。
3.本发明的合金阳极经轧制后,抗拉强度:3-4公斤力/平方毫米,硬度:6-8公斤/平方毫米。
4.本发明的合金阳极在原始电解液锌离子浓度为120克/升,废电解液硫酸浓度90-140克/升,和电流密度为500安培/平方米,温度35~45℃的电解条件下,电锌中的含铅量小于0.005%。
电解过程中不加入任何锶盐。
5.本发明的合金阳极在上述电解条件下连续电解时的耐腐蚀率比铅-银二元合金阳极高3~7倍。
实例
1.合金阳极的制备方法
在SG2-15-12电阻炉内,用16#石墨坩埚于340℃熔化电铅7.8公斤,加入铅-银(0.67%)合金3.3公斤,熔化后升温至630℃,熔化6克纯铝后,降温至580℃,加入12克金属钙和6克混合稀土金属,搅拌30分钟,静置30分钟,除去浮渣,铸成合金坯料,冷却后经轧制为厚度6毫米的合金阳极。
2.合金阳极的化学成份:(%)
银:0.206,钙:0.148,铝:0.03,稀土:0.02。
3.合金阳极的抗拉强度为:3公斤力/平方毫米,硬度:6.7公斤/平方毫米。
4.合金阳极经600小时连续电解试验的结果:
(1)电解工艺条件:原始电解液〔Zn2+〕:120克/升,电流密度:500安培/平方米,电解温度35~45℃,废电解液酸度(硫酸)90~140克/升。
(2)在上述工艺条件下,每天剥锌分析,电锌含铅小于0.005%,部分结果如下:
(按样号,电锌含铅量%书写)。
7#    0.0026    8#    0.0030
9#    0.0026    10#    0.0030
11#    0.0036    12#    0.0035
13#    0.0040
(3)600小时连续电解后阳极损耗折算为2.06公斤/吨锌。
5.合金阳极的极化曲线和腐蚀试验评价报告指出:以铅-银(1%)二元合金的腐蚀率为100%,则本发明的铅银钙稀土多元合金的腐蚀率仅为30%,即耐腐蚀率提高3.3倍。

Claims (2)

1、一种电解用铅银钙稀土多元不溶性合金阳极,其特征在于,该合金阳极含银0.15~0.3%,含钙0.06~0.15%,含铝0.01~0.1%,并含混合稀土金属0.01~0.1%,其余成分为铅。
2、如权利要求1所说合金阳极的制造方法,其特征在于,在熔炉内将电铅在340℃熔化,按合金含银0.15~0.3%加入金属银,待熔化后升温至630℃,按合金含铝0.01~0.1%加入金属铝,降温至580℃,分别按合金含钙0.06~0.15%,合金含混合稀土金属0.01~0.1%加入金属钙(或铅钙母合金)和混合稀土金属,搅拌30分钟后静置30分钟,除去浮渣后铸造成合金坯料,再轧制(或铸造)成所要求尺寸的合金阳极。
CN89103823A 1989-06-01 1989-06-01 电解用铅银钙稀土多元不溶性合金阳极及其制法 Expired CN1015383B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN89103823A CN1015383B (zh) 1989-06-01 1989-06-01 电解用铅银钙稀土多元不溶性合金阳极及其制法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN89103823A CN1015383B (zh) 1989-06-01 1989-06-01 电解用铅银钙稀土多元不溶性合金阳极及其制法

Publications (2)

Publication Number Publication Date
CN1047709A CN1047709A (zh) 1990-12-12
CN1015383B true CN1015383B (zh) 1992-02-05

Family

ID=4855308

Family Applications (1)

Application Number Title Priority Date Filing Date
CN89103823A Expired CN1015383B (zh) 1989-06-01 1989-06-01 电解用铅银钙稀土多元不溶性合金阳极及其制法

Country Status (1)

Country Link
CN (1) CN1015383B (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102505126A (zh) * 2011-12-22 2012-06-20 中南大学 一种低银含量Pb-RE-Ag合金电极
CN106435263B (zh) * 2016-10-13 2018-05-25 昆明冶金研究院 一种节能抗腐蚀的Pb-Ag-La合金阳极板的制作方法
CN110644019A (zh) * 2019-10-28 2020-01-03 昆明冶金研究院 一种高电效电解锌用阳极板及其制备方法
CN111155029A (zh) * 2019-12-27 2020-05-15 广西南宁三正工程材料有限公司 一种高强度钢材以及利用钢材制备网片的方法

Also Published As

Publication number Publication date
CN1047709A (zh) 1990-12-12

Similar Documents

Publication Publication Date Title
CN100335666C (zh) 含稀土高强度铸造镁合金及其制备方法
CN110923499B (zh) 一种含Ce和B的钛青铜合金带材及其制备方法
CN101454468B (zh) Sn镀层的耐热剥离性优异的Cu-Zn类合金条及其镀Sn条
JP4298712B2 (ja) 銅の電解精製方法
CN1247235A (zh) 一种高纯锌及其制备方法
CN109022932B (zh) 一种湿法冶金电积锌用高强度耐蚀铝合金阴极材料及其制备方法
CN1258753A (zh) 废铅酸蓄电池生产再生铅、红丹和硝酸铅
AU662060B2 (en) Process for the direct electrochemical refining of copper scrap
CN1015383B (zh) 电解用铅银钙稀土多元不溶性合金阳极及其制法
US2320773A (en) Electrodeposition of manganese
EP0021809A1 (en) Chloride leaching
KR100238957B1 (ko) 전기 전자부품용 구리합금
CN113930639A (zh) 一种用于紫杂铜精炼除杂质的铜钙稀土合金及其制备方法和应用
Markovic et al. Treatment of Waste Copper Electrolytes Using Insoluble and Soluble Anodes
CN1047703A (zh) 经混合稀土金属调质处理的铅钙锡合金
RU2434065C1 (ru) Способ переработки сульфидных медно-никелевых сплавов
JP3774262B2 (ja) 高純度電気銅の製造方法
RU2770160C1 (ru) Способ электрохимической переработки медного штейна
RU2084548C1 (ru) Способ очистки алюминия и его сплавов от примесей тяжелых металлов
EP3622094B1 (en) A process for reducing the content of oxygen in metallic copper
GB253908A (en) A process for treating lead-tin alloys derived from waste material from lead smelting works
SU988892A1 (ru) Способ выщелачивани полиметаллических цинкосодержащих материалов
JPH0258330B2 (zh)
JP3809558B2 (ja) 陰極用アルミニウム合金
CN1367274A (zh) 电解AD-铝粉剂的方法制备Al-Si合金方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C13 Decision
GR02 Examined patent application
CI01 Correction of invention patent gazette

Correction item: Applicant

Correct: New-material Research and Development Base, Guizhou Prov.

False: Guizhou Academy of Sciences

Number: 6

Page: 72

Volume: 8

CI02 Correction of invention patent application

Correction item: Applicant

Correct: New-material Research and Development Base, Guizhou Prov.

False: Guizhou Academy of Sciences

Page: The title page

COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: NEW MATERIAL RESEARCH BASE, GUIZHOU PROVINCE TO: NEW MATERIAL RESEARCH AND DEVELOPMENT BASE, GUIZHOU PROVINCE

ERR Gazette correction

Free format text: CORRECT: APPLICANT; FROM: NEW MATERIAL RESEARCH BASE, GUIZHOU PROVINCE TO: NEW MATERIAL RESEARCH AND DEVELOPMENT BASE, GUIZHOU PROVINCE

C14 Grant of patent or utility model
GR01 Patent grant
C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
OR01 Other related matters
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee