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

Production technology of white microsphere high-strength white carbon black

A production process, high-strength technology, applied in the direction of silicon dioxide, silicon oxide, etc., can solve the problems of high cost, easy scattering, environmental pollution, etc., and achieve the effect of improving mixing ability, good dispersibility, and enhancing fluidity

Active Publication Date: 2010-07-14
WUXI HENGCHENG SILICON IND CO LTD
View PDF1 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most important methods of producing white carbon black are precipitation method and gas phase method. The gas phase method is rarely used because of the complicated process and high cost. The traditional precipitation method with sodium silicate and sulfuric acid as the main raw materials mainly uses centrifugal drying equipment. The obtained product is in the form of powder, which is easily scattered during use and causes great pollution to the environment
Granulated briquetting can effectively solve the problem of powder scattering, but the dispersibility of granulated products is poor, which is not conducive to the full play of its excellent reinforcing and filling effect of silica

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

[0019] (1) Solid sodium silicate (Na 2 O nSiO 2 ) and water are added into the dissolving drum according to the mass ratio of 2:1, clean hot air is introduced, fully dissolved under the pressure of 0.4-0.8Mpa for 2-3 hours, and the transparent and impurity-free liquid water glass is obtained after filtering out the precipitate , where Na 2 O nSiO 2 The Baume degree (15.6°C) is 30-38°Bé;

[0020] (2) add the water of its quality 1 / 4~1 / 8 in the liquid water glass of step (1), to adjust wherein Na 2 O nSiO 2 Baume degree (15.6 ℃) to 20 ~ 30 ° Bé;

[0021] (3) the liquid water glass adjusted in the step (2) and the concentrated sulfuric acid that concentration is 98% are added in the synthetic reactor simultaneously according to the volume ratio of 15: 1, reacted 90 minutes at the temperature of 80 ℃~98 ℃, During the reaction process, ensure that Na in the reactor 2 The residual normality of O is 7.0 ± 0.5, and then 98% concentrated sulfuric acid is added dropwise to adjust...

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
modulusaaaaaaaaaa
Login to View More

Abstract

The invention discloses a production technology of white microsphere high-strength white carbon black, which takes sodium silicate and concentrated sulfuric acid as the main raw materials, uses the steps of dissolving, synthesizing, filter pressing, slurrying, drying and the like, and especially adopts the mode of adding aluminum oxide in the slurring step and combining the pressure type drying with fluidized bed secondary drying in the drying step to produce the white microsphere high-strength white carbon black with high strength, low broken rate, environment protection and easy dispersion. The microsphere high-strength white carbon black is very suitable for tire industry, can enhance fluidity and improve mixing capability of rubber.

Description

technical field [0001] The invention relates to a production process of white carbon black, in particular to a production process of white microbead-shaped high-strength white carbon black. Background technique [0002] The chemical name of silica is hydrated amorphous silicon dioxide with the molecular formula SiO 2 ·nH 2 O, is a kind of reinforcing filler widely used in rubber and plastic industry. It has many advantages such as porous, large specific surface area, strong water absorption, high temperature resistance, and good electrical insulation. The most important methods of producing white carbon black are precipitation method and gas phase method. The gas phase method is rarely used because of the complicated process and high cost. The traditional precipitation method with sodium silicate and sulfuric acid as the main raw materials mainly uses centrifugal drying equipment. The obtained product is in the form of powder, which is easily scattered during use and cause...

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): C01B33/12
Inventor 陈南飞
Owner WUXI HENGCHENG SILICON IND CO LTD
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