Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of titanium tungsten silicon powder for catalyst

A titanium-tungsten-silicon powder and catalyst technology, applied in the field of preparation of inorganic chemical materials, can solve the problems of unmentioned product dispersion performance and viscosity, lack of dispersion performance, affecting the performance of titanium-tungsten-silicon composite powder catalytic material, etc. The effect of lowering, high yield, and easy molding

Inactive Publication Date: 2016-12-07
GUANGXI JINMAO TITANIUM
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the specific preparation process, no dispersant was added, there was no process to improve the dispersion performance, and the dispersion performance and viscosity of the product were not mentioned, all of which affected the performance of titanium-tungsten-silicon composite powder as a catalytic material

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 1

[0032] After washing the qualified metatitanic acid, the concentration was adjusted to 200g / L, neutralized with 20% ammonia water, after neutralization, the pH was 8.5, and the neutralization process was kept for 1h, and the circulating pump was forced to circulate and stir.

[0033] After the neutralization is completed, add analytically pure silica sol with a total mass content of 1.2% of the finished product while stirring, and then add ammonium paratungstate with a tungsten trioxide content of >88.5% based on the calculation that tungsten trioxide accounts for 5% of the total mass of the finished product. After the addition, introduce it into another reaction tank, heat up while stirring, keep stirring for 1 hour, raise the temperature to 90°C, and then heat-preserve and mature for 1 hour. Afterwards, it is pressed and dried by a filter press, so that the water content of the filter cake is 45-55%.

[0034] After the cake is removed, the filter cake is crushed and then ent...

Embodiment 2

[0036] After washing the qualified metatitanic acid, the concentration was adjusted to 180g / L, neutralized with 18% ammonia water, after neutralization, the pH was 8, and the neutralization process was kept for 1h, and the circulation pump was forced to circulate and stir.

[0037] After the neutralization is completed, add ultra-fine silicon dioxide with a total mass content of 1.2% of the finished product and a purity >99% while stirring, and then add tungsten trioxide content >88.5% based Ammonium metatungstate. After the addition, it was introduced into another reaction tank, and the temperature was raised while stirring. The stirring was kept for 1 hour, and the temperature was raised to 90° C., and then incubated for 1 hour. Afterwards, it is pressed and dried by a filter press, so that the water content of the filter cake is 45-55%.

[0038] After the cake is removed, the filter cake is crushed and then enters the continuous rotary kiln for drying and calcination. The ...

Embodiment 3

[0040] After washing the qualified metatitanic acid, the concentration was adjusted to 220g / L, neutralized with 22% ammonia water, and reached pH 9 after neutralization, and the neutralization process was kept for 1h, and the circulating pump was forced to circulate and stir.

[0041] After the neutralization is completed, add analytically pure silica sol with a total mass content of 1.2% of the finished product while stirring, and then add ammonium paratungstate with a tungsten trioxide content of >88.5% based on the calculation that tungsten trioxide accounts for 5.5% of the total mass of the finished product. After the addition, it was introduced into another reaction tank, and the temperature was raised while stirring. The stirring was kept for 1 hour, and the temperature was raised to 90° C., and then incubated for 1 hour. Afterwards, it is pressed and dried by a filter press, so that the water content of the filter cake is 45-55%.

[0042] After the cake is removed, the ...

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 preparation method of titanium tungsten silicon powder for a catalyst. The preparation method comprises the following steps of adjusting a pH value to 8-9 with low-concentration metatitanic acid slurry, then adding a silicon source compound and tungstate, then performing ageing, performing filter pressing, performing calcinations through a continuous rotary kiln, performing crushing, and the like so as to obtain titanium tungsten silicon composite powder. The particle diameter of product crystals reaches to 14-16nm, the dispersion is uniform, the viscosity is reduced, the fluidity is good, the water retention property is good, the made catalyst is easy to shape, the rate of finished products is high, the intensity is high, the activity is high, the quality is high, the catalytic activity under a high-temperature condition is stable, and the service life is long.

Description

technical field [0001] The invention relates to a preparation method of an inorganic chemical material, in particular to a preparation method of a catalyst carrier material and various catalyst-promoting materials. Background technique [0002] As the smog problem continues to attract people's attention, the control of air pollution has become more and more important. Nitrogen oxides are one of the main air pollutants and an important precursor for inducing photochemical smog and acid rain. About 60% of nitrogen oxides are emitted from coal-fired power plants, industrial boilers, cement plants, etc. The "Emission Standards of Air Pollutants for Thermal Power Plants" promulgated by the Ministry of Environmental Protection in July 2011 (implemented on January 1, 2012) has more stringent requirements for the implementation time of denitrification and nitrogen oxide emission standards for thermal power plants. , clearly requiring new and existing thermal power plants to control...

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): B01J23/30B01D53/86B01D53/56
CPCB01J23/002B01D53/8628B01J23/30B01J2523/00B01J2523/41B01J2523/47B01J2523/69
Inventor 柴春旺
Owner GUANGXI JINMAO TITANIUM
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com