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

Method for preparing high-purity antimony pentasulfide

An antimony pentasulfide and antimony pentoxide technology, applied in chemical instruments and methods, inorganic chemistry, antimony compounds, etc., can solve the problems of emission pollution, high toxicity, low product purity, etc., and achieve guaranteed purity, easy raw materials, high purity effect

Active Publication Date: 2011-11-30
天津市风船化学试剂科技有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But, the method for antimony pentasulfide prepared by above-mentioned chemical synthesis has the following problems: 1, sodium thioantimonate is difficult to obtain in commercial form; 2, produces a large amount of hydrogen sulfide gas in the reaction, and toxicity is very big, unfavorable safe production, Direct discharge pollution is serious, treatment is difficult, and the cost of antimony pentasulfide preparation is increased; 3. The purity of the final product is low

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with specific examples. The following examples are illustrative, not restrictive, and the protection scope of the present invention cannot be limited by the following examples.

[0024] A preparation method of high-purity antimony pentasulfide, the steps of which are:

[0025] (1) Dissolution: In a closed container, dissolve 100 grams of antimony pentoxide (content ≥ 98%) in 300 milliliters of hot (close to boiling state, temperature is 60-110 ° C.) concentrated hydrochloric acid, heat and stir until all Dissolve, add 70 grams of tartaric acid under stirring, avoid the hydrolysis of the antimony compound in the reaction, heat until completely dissolved, then add the same volume of water, stir evenly, cool to room temperature, and obtain a mixed solution;

[0026] (2) Filtration: filter the mixed solution with a G4 glass filter (pore size 3-4um), filter out a small amount of raw material impur...

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

PropertyMeasurementUnit
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing high-purity antimony pentasulfide. Orange or brownish red antimony pentasulfide is prepared by using antimony pentoxide, concentrated hydrochloric acid, tartaric acid and ammonium sulfide as raw materials through the steps of dissolution of the raw materials, filtration, sedimentation, washing, separation and drying. In the method, the antimony pentoxide is sufficiently dissolved in the concentrated hydrochloric acid to form chloroantimonate; meanwhile, hydrolysis of an antimony compound in the reaction is avoided by sufficient complexation of tartaric acid and the antimony compound; and ammonium sulfide solution is used as an antimony pentoxide precipitate synthetic agent. The antimony pentasulfide prepared by the method has high purity. The content of the antimony pentasulfide can reach 96.2 percent. The content of dissolved hydrogen sulfide is not higher than 2.5 percent.

Description

technical field [0001] The invention belongs to the field of chemical product production and relates to a preparation method of high-purity antimony pentasulfide. Background technique [0002] In recent years, the rapid development of my country's raw material chemical industry has provided a broad market for fine chemical products, and the fine chemical industry has ushered in a golden period of rapid development. At present, my country's traditional fine chemical industries such as dyestuffs, coatings, and rubber processing are facing the situation of "surplus quantity but insufficient quality". The fine chemical industry has reached a critical node. Structural unit products need to be the main means of adding value to the enterprise with lower production costs, and the low cost is realized through the convenience of raw material supply and the scale efficiency of production. [0003] Among them, antimony pentasulfide is used in the preparation of pigments, and is also use...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C01G30/00
Inventor 郝承志何禄宽孔祥风
Owner 天津市风船化学试剂科技有限公司
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