Method for recovering rhenium from arsenic sulfide pressurization leach liquor

A pressure leaching and arsenic sulfide technology, applied in the field of hydrometallurgy, can solve the problems of low regeneration times, limited resin exchange capacity, and restrictions on large-scale industrial application, and achieve the effect of convenient storage and transportation and high rhenium recovery rate

Active Publication Date: 2014-07-09
BEIJING GENERAL RES INST OF MINING & METALLURGY
View PDF4 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the ion exchange method has a simple process and low pollution, the exchange capacity of the res

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for recovering rhenium from arsenic sulfide pressurization leach liquor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0015] Example 1

[0016] The rhenium-arsenic filter cake treated in this example comes from a domestic copper smelting enterprise, and its main chemical components are (%): As12.14-13.45, Sb 0.065-0.078, Bi 1.23-1.54, Au 2.98-3.21 (g / t), Ag 43.16~45.18(g / t), Cu8.77~9.37, Pb 3.99~4.03, Zn 0.67~0.84, S 5.13~6.43, Re 0.09~0.11, Se 0.34~0.41, Te0.0032~0.0034 , In 0.0078~0.0089, Fe 0.19~0.25, Sn 0.29~0.35, the rest are impurities.

[0017] Put 200g of rhenium-containing arsenic filter cake into a GAS type 2L vertical autoclave, add additives, acid, water, etc. and mix them in a certain proportion into the axe, seal, stir, and heat up. When the temperature rises to the set value (100°C), the oxygen partial pressure was adjusted to the set value (0.4Mpa) by oxygen, and the timing was started. After 3 hours of reaction, the cooling water was passed to cool down, the valve was opened to reduce pressure, the material was separated from solid and liquid, and the leaching residue was ...

Example Embodiment

[0019] Example 2

[0020] The rhenium-arsenic filter cake treated in this example comes from a domestic copper smelting enterprise, and its main chemical components are (%): As12.14-13.45, Sb 0.065-0.078, Bi 1.23-1.54, Au 2.98-3.21 (g / t), Ag 43.16~45.18(g / t), Cu8.77~9.37, Pb 3.99~4.03, Zn 0.67~0.84, S 5.13~6.43, Re 0.09~0.11, Se 0.34~0.41, Te0.0032~0.0034 , In 0.0078~0.0089, Fe 0.19~0.25, Sn 0.29~0.35, the rest are impurities.

[0021] Put 100g of rhenium-containing arsenic filter cake into a GAS type 2L vertical autoclave, add additives, acid, water, etc. and mix them in a certain proportion into the axe, seal, stir, and heat up. When the temperature rises to the set value (60°C), the oxygen partial pressure was adjusted to the set value (0.8Mpa) by oxygen, and the timing was started. After 2 hours of reaction, the cooling water was passed through to cool down, and the valve was opened to reduce pressure. After the material was separated from solid and liquid, the leaching...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for recovering rhenium from arsenic sulfide pressurization leach liquor, and relates to recovery of rhenium from a rhenium-containing solution, and in particular relates to enriching of rhenium from arsenic sulfide pressurization leach liquor. The method is characterized by comprising the following steps: (1) performing oxygenation and pressurization on an arsenic filter cake for leaching; and (2) reducing leach liquor by using sulfur dioxide to produce arsenic trioxide, extracting rhenium in the solution by using arsenic precipitation mother liquor, and performing multi-stage reverse extraction and evaporative crystallization to produce ammonium rhenate. According to the method, an ammonium rhenate product is obtained finally by adopting a technology consisting of oxidative pressure leaching, SO2 reduction and extraction. In the entire process, the process flow is simple, the recovery rate of rhenium is high, the price of a rhenium extracting agent is low, secondary waste of valuable metal resources is avoided, and good economic benefit can be created for enterprises.

Description

technical field [0001] The invention discloses a method for recovering rhenium from arsenic sulfide pressure leaching solution, which relates to recovering rhenium from rhenium-containing solution, in particular extracting rhenium from arsenic sulfide-containing pressure leaching solution, and belongs to the field of hydrometallurgy. Background technique [0002] Rhenium is a rare refractory metal. There are almost no independent rhenium minerals in the world, and it is mostly dispersed in molybdenite and copper rhenium ore. Rhenium is widely used in metallurgy, aerospace, catalyst, electrical machinery, electronics and instrumentation and other fields. According to Mineral Commodity Summaries2013 (USGS) data, as of 2012, the global rhenium reserves were 2,500t, and the reserve base was 10,000t; the mine output of rhenium in 2012 was 52t, an increase of 2.6% compared with 2011. On January 17, 2014, the spot price of rhenium in the Shanghai market was 60,000-65,000 (yuan / kg)...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C22B3/08C22B3/44C22B3/40C22B61/00C22B30/04
CPCY02P10/20
Inventor 蒋开喜王海北王玉芳李岚张邦胜冯亚平李贺邹小平尹一男
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap