CN110616312A - 一种低品位多金属氧复杂矿的火法富集工艺 - Google Patents

一种低品位多金属氧复杂矿的火法富集工艺 Download PDF

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CN110616312A
CN110616312A CN201810635435.1A CN201810635435A CN110616312A CN 110616312 A CN110616312 A CN 110616312A CN 201810635435 A CN201810635435 A CN 201810635435A CN 110616312 A CN110616312 A CN 110616312A
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leaching
roasting
adopting
smoke dust
acid
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徐永平
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Yunnan Yuanda Gold Industry Co Ltd
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Yunnan Yuanda Gold Industry Co Ltd
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    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • 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
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • 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
    • C22B13/02—Obtaining lead by dry processes
    • 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
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0065—Leaching or slurrying
    • C22B15/0067—Leaching or slurrying with acids or salts thereof
    • C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
    • 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
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • 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
    • 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
    • C22B7/00—Working 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
    • C22B7/006—Wet processes
    • C22B7/008—Wet processes by an alkaline or ammoniacal leaching
    • 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
    • C22B7/00—Working 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
    • C22B7/02—Working-up flue dust
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
    • 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

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

Abstract

本发明提供发明的目的在于提供一种低品位多金属氧复杂矿的火法富集工艺，其特征在于包括以下几个步骤：将原矿采用气态悬浮焙烧炉进行焙烧处理，焙烧温度1150℃，焙烧烟尘降温后采用布袋除尘进行回收，烧渣采用硫酸搅拌浸出，酸浸液固比为6:1，酸浸时间2‑3小时，终酸浓度为1‑1.2mol/l,搅拌速度400r/min,采用萃取工艺将铜离子分离出来进行电解，对萃取后的萃取余液加入锌粉进行置换，置换的沉淀物熔炼产出金银合金，然后分离提取金银，原矿焙烧产生的烟尘进行氨化处理，然后采用氨法电解得到锌，氨浸产生的浸出渣采用还原炉加碳进行还原熔炼制得粗铅。

Description

一种低品位多金属氧复杂矿的火法富集工艺
技术领域
本发明涉及冶炼领域，具体涉及一种低品位多金属氧复杂矿的火法富集工艺。
背景技术
氧硫混合矿中，不同矿物质往往共生紧密，难以达到单体解离，矿浆中难免离子会活化抑制矿物，恶化抑制效果，加之不同矿物的可浮***错重叠，铜铅锌分离困难，在磨矿过程中很难使不同矿物质之间单体解离，从而得到的精矿往往互含严重，分选效果差。
发明内容
本发明的目的在于提供一种低品位多金属氧复杂矿的火法富集工艺，采用多种工艺组合使用，多手段对氧硫混合矿中金属进行回收，利用个金属存在的差异进行分别回收，对氧硫混合矿处理彻底有效。
为实现上述目的，本发明采用的技术方案是，一种低品位多金属氧复杂矿的火法富集工艺，其特征在于包括以下几个步骤：
1）、将原矿采用气态悬浮焙烧炉进行焙烧处理，焙烧温度1150℃，焙烧烟尘降温后采用布袋除尘进行回收；
2）、烧渣采用硫酸搅拌浸出，酸浸液固比为6:1，酸浸时间2-3小时，终酸浓度为1-1.2mol/l,搅拌速度400r/min,采用萃取工艺将铜离子分离出来进行电解；
3）、对萃取后的萃取余液加入锌粉进行置换，置换的沉淀物熔炼产出金银合金，然后分离提取金银；
4）、原矿焙烧产生的烟尘进行氨化处理，然后采用氨法电解得到锌；
5）、氨浸产生的浸出渣采用还原炉加碳进行还原熔炼制得粗铅。
本发明的有益效果集中体现以下几个方面，通过合理的工艺流程设计，将各金属进行分离回收，金属处理彻底，采用气态悬浮焙烧炉进行焙烧处理，处理效果好，金属回收率高，能分别将铜、金、银、锌、铅进行分离提纯。
具体实施方式
一种低品位多金属氧复杂矿的火法富集工艺，其特征在于包括以下几个步骤：
1）、将原矿采用气态悬浮焙烧炉进行焙烧处理，焙烧温度1150℃，焙烧烟尘降温后采用布袋除尘进行回收；
2）、烧渣采用硫酸搅拌浸出，酸浸液固比为6:1，酸浸时间2-3小时，终酸浓度为1-1.2mol/l,搅拌速度400r/min,采用萃取工艺将铜离子分离出来进行电解；
3）、对萃取后的萃取余液加入锌粉进行置换，置换的沉淀物熔炼产出金银合金，然后分离提取金银；
4）、原矿焙烧产生的烟尘进行氨化处理，然后采用氨法电解得到锌；
5）、氨浸产生的浸出渣采用还原炉加碳进行还原熔炼制得粗铅。
本发明的有益效果集中体现以下几个方面，通过合理的工艺流程设计，将各金属进行分离回收，金属处理彻底，采用气态悬浮焙烧炉进行焙烧处理，处理效果好，金属回收率高，能分别将铜、金、银、锌、铅进行分离提纯。

Claims (1)

1.一种低品位多金属氧复杂矿的火法富集工艺，其特征在于包括以下几个步骤：
1）、将原矿采用气态悬浮焙烧炉进行焙烧处理，焙烧温度1150℃，焙烧烟尘降温后采用布袋除尘进行回收；
2）、烧渣采用硫酸搅拌浸出，酸浸液固比为6:1，酸浸时间2-3小时，终酸浓度为1-1.2mol/l,搅拌速度400r/min,采用萃取工艺将铜离子分离出来进行电解；
3）、对萃取后的萃取余液加入锌粉进行置换，置换的沉淀物熔炼产出金银合金，然后分离提取金银；
4）、原矿焙烧产生的烟尘进行氨化处理，然后采用氨法电解得到锌；
5）、氨浸产生的浸出渣采用还原炉加碳进行还原熔炼制得粗铅。
CN201810635435.1A 2018-06-20 2018-06-20 一种低品位多金属氧复杂矿的火法富集工艺 Pending CN110616312A (zh)

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CN111471851A (zh) * 2020-05-29 2020-07-31 东北大学 一种悬浮焙烧处理含硫、含碳金矿的选矿提金方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111471851A (zh) * 2020-05-29 2020-07-31 东北大学 一种悬浮焙烧处理含硫、含碳金矿的选矿提金方法

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Application publication date: 20191227