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

Production device and method of aluminum hydroxide

A production device and aluminum hydroxide technology, applied in chemical instruments and methods, preparation of alkali metal aluminate/alumina/aluminum hydroxide, inorganic chemistry, etc., can solve difficult continuous production of aluminum hydroxide products with stable quality To achieve the effect of inhibiting spontaneous hydrolysis reaction and promoting neutralization reaction

Active Publication Date: 2016-03-23
CHINA PETROLEUM & CHEM CORP +2
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is still difficult for these reactors to achieve stable product quality and continuous production of aluminum hydroxide.

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
  • Production device and method of aluminum hydroxide
  • Production device and method of aluminum hydroxide
  • Production device and method of aluminum hydroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] See Table 1 for other process conditions of Examples 1-3, and see Table 2 for the performance parameters of the obtained pseudo-boehmite. The XRD pattern of the pseudo-boehmite prepared in Example 1 is shown in figure 2 .

[0074] Table 1

[0075]

[0076] Table 2

[0077] performance parameters

[0078] The performance parameters of the pseudo-boehmite obtained in Examples 1-3 have little change, which shows that the aluminum hydroxide obtained by the device and method of the present invention can form pseudo-boehmite products with stable quality. In addition, after repeating Examples 1-3 5 times, the variation range of the performance parameters of the obtained pseudo-boehmite is less than 0.5%, which shows that the device and method of the present invention have good repeatability.

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 production device and method of aluminum hydroxide. The production device comprises an inorganic membrane reactor, a meta-aluminate supply unit, a carbon dioxide supply unit and a reaction product storage unit. The meta-aluminate supply unit is connected with a liquid-phase inlet of a shell of the inorganic membrane reactor and used for supplying a meta-aluminate solution to a cavity of the inorganic membrane reactor. The carbon dioxide supply unit is connected with a gaseous-phase inlet of an inorganic membrane assembly of the inorganic membrane reactor and used for supplying carbon dioxide to the inorganic membrane assembly of the inorganic membrane reactor. The meta-aluminate solution and the carbon dioxide are reacted in the inorganic membrane reactor to form a reaction product with the aluminum hydroxide. By means of the aluminum hydroxide obtained through the production device and method, pseudo-boehmite stable in quality can be produced.

Description

technical field [0001] The invention relates to a production device and method for aluminum hydroxide, in particular to a device and method for producing aluminum hydroxide by carbonization. Background technique [0002] Alumina powder is often used as a desiccant, adsorbent, catalyst and catalyst carrier in the chemical industry. However, natural or artificially produced alumina monohydrate and alumina trihydrate have low specific surface area, small pore volume, and low activity, so they cannot be used as desiccants, adsorbents, catalysts, and catalyst supports. Pseudo-boehmite has the characteristics of high specific surface area, large pore volume, large pore diameter, and high activity. It is suitable for use as desiccant, adsorbent, and catalyst and catalyst carrier in the fields of petrochemical, fertilizer, and tail gas. Therefore, there is a need to convert alumina monohydrate or alumina trihydrate to pseudoboehmite. Pseudo-boehmite has low crystallinity, higher w...

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): C01F7/14
CPCC01F7/142C01P2002/72C01P2006/12C01P2006/14
Inventor 史建公刘志坚张文平张敏宏文建军罗道威史建新蒋绍洋张新军伊红亮钟健李卫红
Owner CHINA PETROLEUM & CHEM CORP
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