Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for separating arsenic and further recycling antimony and tin with copper anode slime reduction-organic vulcanization method

A copper anode slime and organic technology, which is applied in the field of comprehensive resource recycling and environmental protection, can solve the problems of poor separation effect and long process flow of antimony separation, and achieve the effect of easy control, less additive dosage and simple process flow

Active Publication Date: 2018-03-23
ZHAOQING FEINAN METAL
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, antimony white and tin dioxide with commercial application value are obtained, on the other hand, the problems of long separation process and poor separation effect of traditional arsenic and antimony are solved, which is of great significance to the efficient and comprehensive utilization of copper anode slime

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 separating arsenic and further recycling antimony and tin with copper anode slime reduction-organic vulcanization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as figure 1 Shown, this copper anode slime reduction-organic vulcanization method separates arsenic and reclaims the method for antimony, tin, and its specific steps are as follows:

[0041] Step 1, first copper anode slime (wherein As mass percentage content is 9.91%, Sb mass percentage content is 6.34%, Sn mass percentage content is 13.34%, also comprises the metal element of following mass percentage: also comprises the following mass percentage of metal Elements: Cu 11.62%, Ni 5.8%, Pb 1.54%), reducing agent (the reducing agent is carbon powder, and the amount of reducing agent added is 5% of the mass of the copper anode slime) respectively ground to a particle size of 74 μm and mixed evenly, and passed The inflow gas flow rate is 0.4L / min under the protection of nitrogen inert gas, reduction roasting at 600°C for 90 minutes to volatilize and remove arsenic to obtain arsenic-containing fumes and a substrate, and the arsenic-containing fumes are absorbed by NaOH...

Embodiment 2

[0046] Such as figure 1 Shown, this copper anode slime reduction-organic vulcanization method separates arsenic and reclaims the method for antimony, tin, and its specific steps are as follows:

[0047] Step 1, first copper anode slime (wherein As mass percentage content is 9.91%, Sb mass percentage content is 6.34%, Sn mass percentage content is 13.34%, also comprises the metal element of following mass percentage: also comprises the following mass percentage of metal Elements: Cu 11.62%, Ni 5.8%, Pb 1.54%), reducing agent (the reducing agent is coke, and the amount of reducing agent added is 10% of the mass of copper anode slime) respectively ground to a particle size of 74 μm and mixed evenly, The gas flow rate is 0.4L / min, under the protection of nitrogen inert gas, reduction roasting at 700°C for 60 minutes to volatilize and remove arsenic to obtain arsenic-containing fumes and a substrate, and the arsenic-containing fumes are absorbed by NaOH with a concentration of 20g / ...

Embodiment 3

[0052] Such as figure 1 Shown, this copper anode slime reduction-organic vulcanization method separates arsenic and reclaims the method for antimony, tin, and its specific steps are as follows:

[0053] Step 1, first copper anode slime (wherein As mass percentage content is 9.91%, Sb mass percentage content is 6.34%, Sn mass percentage content is 13.34%, also comprises the metal element of following mass percentage: also comprises the following mass percentage of metal Elements: Cu 11.62%, Ni 5.8%, Pb 1.54%), reducing agent (the reducing agent is anthracite, and the amount of reducing agent added is 8% of the mass of the copper anode slime) were respectively ground to a particle size of 74 μm, mixed evenly, and passed through Under the protection of nitrogen inert gas flow rate of 0.4 L / min, reduction roasting at 800 °C for 90 min to remove arsenic by volatilization to obtain arsenic-containing fumes and a substrate, arsenic-containing fumes were treated with NaOH with a conce...

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 relates to a method for separating arsenic and further recycling antimony and tin with a copper anode slime reduction-organic vulcanization method, and belongs to the technical field ofresource comprehensive recovery, utilization and environmental protection. The method includes the steps that copper anode slime and a reducing agent are evenly mixed after being ground at first, andreduction roasting volatilization arsenic removing is conducted under the inert gas shielding condition to obtain arsenic-containing soot and a first section of substrate; the obtained first section of the substrate and the reducing agent are evenly mixed after being ground, and reduction roasting is performed under the inert gas shielding condition to obtain the volatile product of antimony oxideand a second section of substrate; and the obtained second section of the substrate and an organic vulcanizing agent are evenly mixed after being ground, and reduction roasting is conducted under theinert gas shielding condition to obtain tin sulfide and a third section of substrate. The main phases of arsenic, antimony and tin in anode slime include As2O5, Cu3(AsO4)2, Sb2O4 and SnO2. By adoption of the method, the characteristics that high-value arsenic and antimony can be reduced easily and the oxide of the arsenic and antimony has different volatilities are fully utilized, and the arsenicand antimony separation problem of the copper anode slime is solved; and meanwhile the characteristics that the tin can be vulcanized easily and tin sulfide can volatilize easily are used for volatile recycling of the tin in the substrate.

Description

technical field [0001] The invention relates to a method for separating arsenic and recovering antimony and tin by copper anode slime reduction-organic vulcanization, and belongs to the technical field of resource comprehensive recycling and environmental protection. Background technique [0002] Under the premise of continuous progress in material science and technology, the scope of application of antimony continues to expand. The European Union has listed antimony as one of the 14 key raw materials, and the demand for antimony is increasing day by day. However, in recent years, my country's antimony production has shown a downward trend. According to a 2010 report by a British mining consulting company, China has no antimony deposits that can be continuously developed for more than ten years. Statistics from the US Geological Survey also show that if no important antimony deposits are found in the future, The world's antimony ore resources will be exhausted in more than te...

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): C22B7/00C22B1/02C22B25/06C22B25/02C22B30/02C22B30/04
CPCC22B1/02C22B7/001C22B25/02C22B25/06C22B30/02C22B30/04Y02P10/20
Inventor 王华李磊钟大鹏谈诚于勇王加运
Owner ZHAOQING FEINAN METAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com