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

Method for directly separating antimony and arsenic from flue dust containing antimony and arsenic

A kind of arsenic fume and direct technology, which is applied in the field of smelting special metal antimony and arsenic, can solve the problems of high cost, pollution of waste alkali slag, waste, etc., and achieve the effect of fast construction and production, low production investment and simple process smelting method

Inactive Publication Date: 2011-11-09
HUNAN TAOJIANG YAOXING CHEM
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional smelting method only recovers arsenic and abandons the recovery of antimony, resulting in waste
A large amount of alkali and a large number of man-hours required for the reduction and removal of arsenic will cause high costs and produce a large amount of waste alkali residue, which will cause public nuisance

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 directly separating antimony and arsenic from flue dust containing antimony and arsenic
  • Method for directly separating antimony and arsenic from flue dust containing antimony and arsenic

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A. First, the antimony and arsenic fumes are evenly sent to the top of the reverberatory furnace according to the conventional technology pipeline conveying device and fall;

[0013] B. The above-mentioned antimony and arsenic fumes sent into the reverberatory furnace are heated to 680 ° C for combustion and refining;

[0014] C. Artificially stir and volatilize the raw materials in the above-mentioned combustion to generate arsenic trioxide vapor. Through the existing reverberatory furnace exhaust hole cooling device, the fan is blown into the baghouse to collect dust to obtain arsenic trioxide packaging. raw material slag;

[0015] D. Heat up the antimony raw material slag stored in the reverberatory furnace to 850°C for reduction again, and enter another baghouse to collect dust and antimony trioxide to be packaged.

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 directly separating antimony and arsenic from flue dust containing the antimony and the arsenic. The method is characterized in that: the flue dust containing the antimony and the arsenic is conveyed in a reverberatory furnace and is separated to obtain arsenic trioxide and antimony trioxide by using temperature difference; the temperature for separating the arsenic trioxide is 680 DEG C; the arsenic trioxide passes through a air discharge cooling apparatus, and is insufflated in a bag chamber through a fan and collected; the remaining antimony raw material is heated to a temperature of 850 DEG C to carry out a reduction reaction to collect the antimony trioxide. According to the present invention, the collection efficiency of the arsenic trioxide is 98-98.5%, and the collection efficiency of the antimony trioxide is 98-99.8%; the smelting process method is simple; production investment is less; factory constructing and commissioning are quick.

Description

Technical field: [0001] The invention belongs to the technical field of smelting special metal antimony and arsenic. Background technique: [0002] According to the main components of the soot are antimony trioxide, arsenic trioxide and a small amount of lead, bismuth, gold, silver, etc., antimony trioxide is gray-black in the soot and has a melting point of 656°C; diarsenic trioxide sublimes at 193°C and has a melting point of 315°C. The traditional smelting method only recovers arsenic and abandons the recovery of antimony, which causes waste. A large amount of alkali and a large number of man-hours required for arsenic removal by reduction will cause high cost and produce a large amount of spent alkali slag, which will cause public nuisance. Invention content: [0003] The purpose of the present invention is to provide a method for directly separating antimony and arsenic from the dust of antimony and arsenic, which can be separated into diarsenic trioxide and diantimo...

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): B01D53/74C01G28/00C01G30/00
Inventor 张小妹李学才
Owner HUNAN TAOJIANG YAOXING CHEM
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