CN104195333B - 一种含锰银金矿的预处理方法 - Google Patents

一种含锰银金矿的预处理方法 Download PDF

Info

Publication number
CN104195333B
CN104195333B CN201410388277.6A CN201410388277A CN104195333B CN 104195333 B CN104195333 B CN 104195333B CN 201410388277 A CN201410388277 A CN 201410388277A CN 104195333 B CN104195333 B CN 104195333B
Authority
CN
China
Prior art keywords
electrum
ammonium
silver
containing manganese
manganese
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.)
Active
Application number
CN201410388277.6A
Other languages
English (en)
Other versions
CN104195333A (zh
Inventor
邱显扬
刘志强
李伟
朱薇
黄清源
何斌
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.)
Yunnan Gold Mining Group Co ltd
Institute of Resource Utilization and Rare Earth Development of Guangdong Academy of Sciences
Original Assignee
YUNAN GOLD & MINING GROUP Co Ltd
GUANGDONG RESEARCH INSTITUTE OF INDUSTRIAL TECHNOLOGY (GUANGZHOU RESEARCH INSTITUTE OF NON-FERROUS METALS)
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 YUNAN GOLD & MINING GROUP Co Ltd, GUANGDONG RESEARCH INSTITUTE OF INDUSTRIAL TECHNOLOGY (GUANGZHOU RESEARCH INSTITUTE OF NON-FERROUS METALS) filed Critical YUNAN GOLD & MINING GROUP Co Ltd
Priority to CN201410388277.6A priority Critical patent/CN104195333B/zh
Publication of CN104195333A publication Critical patent/CN104195333A/zh
Application granted granted Critical
Publication of CN104195333B publication Critical patent/CN104195333B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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

Abstract

一种含锰银金矿的预处理方法,其特征是步骤如下:将氨水‑铵盐的混合溶液与含锰银金矿按质量比2~10∶1混合,按金属铜与含锰银金矿质量比0.1~10∶100加入金属铜,搅拌浸出2~20h后,固液分离,得到浸出液和浸出渣,浸出渣用于氰化浸出银和金。本发明的方法可将含锰银金矿进一步预处理,将银矿物从锰矿物中解离出来,有利于后续的氰化浸出。本发明工艺简单,成本低,可大幅度提高银的氰化浸出率。

Description

一种含锰银金矿的预处理方法
技术领域
本发明涉及一种含锰银金矿的预处理方法。
背景技术
当前,氰化法仍然是从细粒金矿石中提取金、银的主要方法。氰化法的优点是工艺成熟,金银提取率高,对矿石的适应性强。氰化法从含金、银矿石及精矿中提取金、银时,其中含有的某些非贵金属矿物将与氰化物发生反应,增加溶剂消耗量;同时部分银以硫化物或与其他矿物形成固溶体,降低金、银的浸出率,因此需要进行预处理。
当前,国内外发现的许多锰银共生的矿床,矿石中的锰主要是软锰矿、硬锰矿等氧化矿物,主要存在形式为MnO2;其伴生的银矿物主要呈细小颗粒以类质同象方式赋存于锰矿晶格中,既难以通过机械选别的方式得到高品位的银精矿,也难以通过单一氰化法获得较好的银浸出指标,被公认为是难处理的含银矿石之一。银锰矿处理工艺研究受到国内外普遍关注,目前针对含锰银金矿氰化前预处理的方法很多,常用的有氯化焙烧,焙烧-硫酸浸出,二氧化硫、两矿、硫酸亚铁和苯胺还原硫酸浸出法等。其中比较成熟的是二氧化硫法和两矿法。二氧化硫法成本低廉,但需要有方便的气源,并且要防止污染环境。两矿法用黄铁矿FeS2作还原剂,在国内应用较广泛,优势是原料来源广、易得和价廉,但锰浸出温度高,浸锰渣量大。由于上述方法是酸性体系,浸出渣中的酸对后续的氰化浸出影响较大,容易造成HCN析出,发生危险事故,因此氰化企业很少使用酸。
因此,需要寻找一种碱性体系的预处理方法,将银矿物从锰矿物中解离出来,有利于后续的氰化浸出,提高银的浸出率。
发明内容
本发明的目的在于提供一种含锰银金矿的预处理方法,将银矿物从锰矿物中解离出来,有利于后续的氰化浸出,提高银的浸出率。
本发明所述含锰银金矿中含银为30~300g/t,锰为1~30%wt。
本发明的含锰银金矿的预处理方法的步骤如下:将氨水-铵盐的混合溶液与含锰银金矿按质量比2~10∶1混合,按金属铜与含锰银金矿质量比0.1~10∶100加入金属铜,搅拌浸出2~20h后,固液分离,得到浸出液和浸出渣,浸出渣用于氰化浸出银和金。
所述的铵盐为硫酸铵、碳酸氢铵、氟化铵、碳酸铵、氟化氢铵或氯化铵中的一种或几种,其中铵离子浓度为0.2~6mol/L。
所述的氨水浓度为0.2~6mol/L。
浸出液可采用溶剂萃取、沉淀或电沉积方法回收铜。
本发明利用在氨水-铵盐体系中,金属铜与二价铜离子生成一价铜,然后利用原位生成的一价铜将银锰矿物中的锰还原成二价进入溶液,达到破坏银锰矿物的结构,将银解离出来,有利于后续的氰化工艺。本发明工艺简单,成本低,可大幅度提高银的氰化浸出率。
具体实施方式
表1 某含锰银金矿的主要化学成分
元素 Au Ag Cu Fe Mn
含量 2.90g/t 50.49g/t 0.45% 40.02% 3.44%
对比例
取表1所示的含锰银金矿150g,和300g水加入氰化浸出槽中,用石灰调浆到pH为10左右后,加入NaCN,NaCN用量为3kg/t处理矿样,氰化浸出36h后,取样分析,银氰化浸出率为28%,金氰化浸出率为90%;
实施例1
取表1所示的含锰银金矿150g,将铵离子浓度为6mol/L、氨水浓度为0.2mol/L的氨水-氯化铵的混合溶液300g与含锰银金矿混合,加入金属铜丝0.2g,搅拌浸出4小时后,固液分离,得到浸出液和浸出渣,经分析30%的锰进入浸出液中,金、铁未浸出;将浸出渣和450g水加入氰化浸出槽中,用石灰调浆到pH为10左右后,加入NaCN,NaCN用量为3kg/t处理矿样,氰化浸出36h后,取样分析,银氰化浸出率为50%,金氰化浸出率为91%;相比对比例,银浸出率提高22%。
实施例2
取表1所示的含锰银金矿150g,将铵离子浓度为6mol/L、氨水浓度为6mol/L的氨水-氯化铵的混合溶液750g与含锰银金矿混合,加入金属铜丝6g,搅拌浸出8小时后,固液分离,得到浸出液和浸出渣,经分析60%的锰进入浸出液中,金、铁未浸出;将浸出渣和450g水加入氰化浸出槽中,用石灰调浆到pH为10左右后,加入NaCN,NaCN用量为3kg/t处理矿样,氰化浸出36h后,取样分析,银浸出率为83%,金氰化浸出率为93%;相比对比例,银浸出率提高55%。
实施例3
取表1所示的含锰银金矿150g,将铵离子浓度为3mol/L、氨水浓度为6mol/L的氨水-硫酸铵的混合溶液1500g与含锰银金矿混合,加入金属铜丝15g,搅拌浸出20小时后,固液分离,得到浸出液和浸出渣,经分析62%的锰进入浸出液中,金、铁未浸出;将浸出渣和450g水加入氰化浸出槽中,用石灰调浆到pH为10左右后,加入NaCN,NaCN用量为3kg/t处理矿样,氰化浸出36h后,取样分析,银浸出率为85%,金氰化浸出率为93%;相比对比例,银浸出率提高57%。
实施例4
取表1所示的含锰银金矿150g,将铵离子浓度为0.2mol/L,氯化铵∶氟化铵摩尔比为1∶1,氨水浓度为5mol/L的氨水-氯化铵-氟化铵的混合溶液750g与含锰银金矿混合,加入金属铜丝4g,搅拌浸出2小时后,固液分离,得到浸出液和浸出渣,经分析50%的锰进入浸出液中,金、铁未浸出;将浸出渣和450g水加入氰化浸出槽中,用石灰调浆到pH为10左右后,加入NaCN,NaCN用量为3kg/t处理矿样,氰化浸出36h后,取样分析,银浸出率为46%,金氰化浸出率为91%;相比对比例,银浸出率提高18%。
实施例5
取表1所示的含锰银金矿150g,将铵离子浓度为3mol/L,氯化铵∶碳酸铵摩尔比为1∶1,氨水浓度为3mol/L的氨水-氯化铵-碳酸铵的混合溶液600g与含锰银金矿混合,加入金属铜丝3g,搅拌浸出6小时后,固液分离,得到浸出液和浸出渣,经分析41%的锰进入浸出液中,金、铁未浸出;将浸出渣和450g水加入氰化浸出槽中,用石灰调浆到pH为10左右后,加入NaCN,NaCN用量为3kg/t处理矿样,氰化浸出36h后,取样分析,银浸出率为44%,金氰化浸出率为91%;相比对比例,银浸出率提高16%。
实施例6
取表1所示的含锰银金矿150g,将铵离子浓度为2mol/L,氯化铵∶氟化氢铵摩尔比为3∶1,氨水浓度为3mol/L的氨水-氯化铵-氟化氢铵的混合溶液600g与含锰银金矿混合,加入金属铜丝5g,搅拌浸出10小时后,固液分离,得到浸出液和浸出渣,经分析53%的锰进入浸出液中,金、铁未浸出;将浸出渣和450g水加入氰化浸出槽中,用石灰调浆到pH为10左右后,加入NaCN,NaCN用量为3kg/t处理矿样,氰化浸出36h后,取样分析,银浸出率为76%,金氰化浸出率为92%;相比对比例,银浸出率提高48%。

Claims (4)

1.一种含锰银金矿的预处理方法,含有锰、银、金和铜,其特征是步骤如下:将氨水-铵盐的混合溶液与含锰银金矿按质量比2~10∶1混合,按金属铜与含锰银金矿质量比0.1~10∶100加入金属铜,搅拌浸出2~20h后,固液分离,得到浸出液和浸出渣,浸出渣用于氰化浸出银和金。
2.根据权利要求1所述的含锰银金矿的预处理方法,其特征是所述铵盐为硫酸铵、碳酸氢铵、氟化铵、碳酸铵、氟化氢铵或氯化铵中的一种或几种。
3.根据权利要求1或2所述的含锰银金矿的预处理方法,其特征是铵离子浓度为0.2~6mol/L。
4.根据权利要求1所述的含锰银金矿的预处理方法,其特征是所述的氨水浓度为0.2~6mol/L。
CN201410388277.6A 2014-08-08 2014-08-08 一种含锰银金矿的预处理方法 Active CN104195333B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410388277.6A CN104195333B (zh) 2014-08-08 2014-08-08 一种含锰银金矿的预处理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410388277.6A CN104195333B (zh) 2014-08-08 2014-08-08 一种含锰银金矿的预处理方法

Publications (2)

Publication Number Publication Date
CN104195333A CN104195333A (zh) 2014-12-10
CN104195333B true CN104195333B (zh) 2016-08-17

Family

ID=52080695

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410388277.6A Active CN104195333B (zh) 2014-08-08 2014-08-08 一种含锰银金矿的预处理方法

Country Status (1)

Country Link
CN (1) CN104195333B (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105755284B (zh) * 2016-04-01 2018-01-30 广东省资源综合利用研究所 一种从褐铁矿中回收铜和提高铁品位方法
CN111286603B (zh) * 2020-03-25 2021-05-25 内蒙古金山矿业有限公司 一种从含锰银矿中回收银并联产硫酸锰的工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983017A (en) * 1972-12-01 1976-09-28 Kennecott Copper Corporation Recovery of metal values from manganese deep sea nodules using ammoniacal cuprous leach solutions
CN101020962A (zh) * 2007-02-07 2007-08-22 北京矿冶研究总院 深海多金属结核氨-氯化铵体系自催化还原氨浸的方法
CN101831544A (zh) * 2010-05-18 2010-09-15 中国地质科学院郑州矿产综合利用研究所 一种锰银矿锰银分离及浸锰液净化提取硫酸锰的方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983017A (en) * 1972-12-01 1976-09-28 Kennecott Copper Corporation Recovery of metal values from manganese deep sea nodules using ammoniacal cuprous leach solutions
CN101020962A (zh) * 2007-02-07 2007-08-22 北京矿冶研究总院 深海多金属结核氨-氯化铵体系自催化还原氨浸的方法
CN101831544A (zh) * 2010-05-18 2010-09-15 中国地质科学院郑州矿产综合利用研究所 一种锰银矿锰银分离及浸锰液净化提取硫酸锰的方法

Also Published As

Publication number Publication date
CN104195333A (zh) 2014-12-10

Similar Documents

Publication Publication Date Title
RU2355793C2 (ru) Способ извлечения никеля, кобальта и других неблагородных металлов из латеритных руд с использованием кучного выщелачивания и продукт, содержащий никель, кобальт и другие металлы и полученный из латеритных руд
AU2008278269B2 (en) Method for ammoniacal leaching
CA2983350A1 (en) Methods for simultaneous leaching and extraction of precious metals
Niinae et al. Preferential leaching of cobalt, nickel and copper from cobalt-rich ferromanganese crusts with ammoniacal solutions using ammonium thiosulfate and ammonium sulfite as reducing agents
US20140112823A1 (en) Recovery of gold from roaster calcine leach tailings
CN104846196B (zh) 一种利用浓硫酸放热提高土状铜矿铜浸出率的工艺
US8486355B2 (en) Method for leaching cobalt from oxidised cobalt ores
CN104195333B (zh) 一种含锰银金矿的预处理方法
ZA200505141B (en) Hydrometallurgical leaching method for extracting platinum, palladium, copper and nickel from the sulfide flotation concentrates containing platinum metals
Radmehr et al. Ammonia leaching in the copper industry: a review
CN105755282A (zh) 一种同时处理海底钴锰氧化物资源与多金属硫化物的方法
CN110564961B (zh) 一种还原浸出水钴矿的方法
Yang et al. Selective leaching of silver-rich residue in NH4SCN solution under oxygen pressure
WO2015009204A2 (en) Process for extraction of nickel, cobalt and other metals from laterite ores
CN105177283A (zh) 一种含铜合金浸出尾矿的深度浸出方法
US9410224B2 (en) Pre-treatment for conventional cyanidation for silver recovering from manganese-argentiferous ores containing occluded silver
Oraby et al. Selective extraction of nickel and cobalt from disseminated sulfide flotation cleaner tailings using alkaline glycine-ammonia leaching solutions
Oraby et al. Selective extraction of Ni and Co from a pyrrhotite-rich flotation slime using an alkaline glycine-based leach system
CN106086435A (zh) 一种从含铜窑渣中回收铜、钴、镍、银方法
Sekisov et al. Comparative research of cyanide and sulfate-chloride gold leaching from oxidized gold-copper ore
Yáñez et al. High chloride in PLS and their impact on copper solvent extraction
CN105755284B (zh) 一种从褐铁矿中回收铜和提高铁品位方法
Charewicz et al. The leaching behavior of ocean polymetallic nodules in chloride solutions
Altinkaya et al. Ferric and Cupric Chloride Leaching of Valuable Metals from Process Residues
AU2018264020B2 (en) Method for Ammoniacal Leaching of Zinc from Carbonate-Hosted Ores

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20180208

Address after: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No.

Co-patentee after: YUNNAN GOLD MINING GROUP CO.,LTD.

Patentee after: GUANGDONG INSTITUTE OF RARE METALS

Address before: 510651 Changxin Road, Guangzhou, Guangdong, No. 363, No.

Co-patentee before: YUNNAN GOLD MINING GROUP CO.,LTD.

Patentee before: GUANGDONG GENERAL Research Institute FOR INDUSTRIAL TECHNOLOGY (GUANGZHOU RESEARCH INSTITUTE OF NON FERROUS METALS)

TR01 Transfer of patent right
CP01 Change in the name or title of a patent holder

Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District

Patentee after: Institute of rare metals, Guangdong Academy of Sciences

Patentee after: YUNNAN GOLD MINING GROUP Co.,Ltd.

Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District

Patentee before: GUANGDONG INSTITUTE OF RARE METALS

Patentee before: YUNNAN GOLD MINING GROUP Co.,Ltd.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20230323

Address after: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District

Patentee after: Institute of resource utilization and rare earth development, Guangdong Academy of Sciences

Patentee after: YUNNAN GOLD MINING GROUP CO.,LTD.

Address before: 510651 No. 363, Changxin Road, Guangzhou, Guangdong, Tianhe District

Patentee before: Institute of rare metals, Guangdong Academy of Sciences

Patentee before: YUNNAN GOLD MINING GROUP CO.,LTD.

TR01 Transfer of patent right