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

Method for preparing aluminum hydroxide sulfate

An aluminum sulfate, basic technology, applied in the direction of aluminum sulfur compounds, etc., can solve the problems of complex production operations, long reaction time, calcium sulfate production, etc., and achieve the effects of easy large-scale production, easy operation, and simple process flow

Inactive Publication Date: 2016-06-29
北京世纪地和控股有限公司
View PDF10 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method prepares basic aluminum sulfate solution with more steps, longer reaction time, complex production operation, and the production of calcium sulfate as a by-product.

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 preparing aluminum hydroxide sulfate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take 100g of aluminum sulfate, add 50g of water and heat to dissolve, make aluminum sulfate solution and put it in the reaction kettle. Then add 2 g of aluminum hydroxide, heat the material to 90° C., keep the reaction temperature at 90° C. under stirring, and react for 60 minutes to obtain basic aluminum sulfate solution. The basic aluminum sulfate chemical formula ([Al 2 (OH) n (SO 4 ) 3-n / 2 ] m ) of n is 0.462. (m indicates that basic aluminum sulfate is a polymer, and m is a positive integer <10)

Embodiment 2

[0027] Take 100g of aluminum sulfate, add 50g of water and heat to dissolve, make aluminum sulfate solution and put it in the reaction kettle. Then add 5 g of aluminum hydroxide, heat the material to 150° C., keep the reaction temperature at 150° C. under stirring, and react for 100 minutes to obtain basic aluminum sulfate solution. The basic aluminum sulfate chemical formula ([Al 2 (OH) n (SO 4 ) 3-n / 2 ] m ) of n is 1.055.

Embodiment 3

[0029] Take 100g of aluminum sulfate, add 50g of water and heat to dissolve, make aluminum sulfate solution and put it in the reaction kettle. Then add 10 g of aluminum hydroxide, heat the material to 250° C., keep the reaction temperature at 250° C. under stirring, and react for 5 minutes to obtain basic aluminum sulfate solution. The basic aluminum sulfate chemical formula ([Al 2 (OH) n (SO 4 ) 3-n / 2 ] m ) of n is 1.795.

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 preparing aluminum hydroxide sulfate. The method comprises the steps of preparing a sodium aluminate solution, and obtaining aluminum hydroxide through a method of adding seed crystals or introducing carbon dioxide; dissolving aluminum sulfate, so that an aluminum sulfate solution is obtained, adding aluminum hydroxide to the aluminum sulfate solution, placing the mixture into a reaction kettle, heating the mixed materials to 90-250 DEG C under the stirring condition, and conducting a reaction for 5-10 minutes, so that the aluminum hydroxide sulfate is obtained. The technological process of preparing the aluminum hydroxide sulfate is simple, and by changing the amount of added aluminum hydroxide, the aluminum hydroxide sulfate different in basicity can be obtained.

Description

technical field [0001] The invention relates to a method for preparing basic aluminum sulfate, in particular to a method for preparing basic aluminum sulfate with different basicities as required. Background technique [0002] Basic aluminum sulfate is an inorganic high molecular polymer with strong adsorption capacity and better water purification effect than all traditional inorganic water purifiers. After being put into raw water, it has high activity, large flocs formed, fast sedimentation speed, and good filterability. And it has strong adaptability to various raw water. [0003] Basic aluminum sulfate solution can absorb a large amount of sulfur dioxide gas at room temperature, and can quickly release the absorbed sulfur dioxide at high temperature, and can maintain the original characteristics before absorption after release, so basic aluminum sulfate is widely used in industry Applied to control flue gas. [0004] The chemical formula of basic aluminum sulfate is [...

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): C01F7/68
CPCC01F7/68
Inventor 张开元徐美权
Owner 北京世纪地和控股有限公司
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