Title:
METHOD FOR PREPARING WHITE CARBON BLACK FOR REINFORCEMENT AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/035098
Kind Code:
A1
Abstract:
A method for preparing white carbon black for reinforcement and the use thereof. The preparation method comprises the following steps: (1) mixing a water glass solution with a first treating liquid, and then subjecting same to first treatment to obtain a slurry, wherein the first treating liquid comprises chloroacetic acid and ammonium citrate; and (2) mixing the slurry obtained in step (1) with a second treating liquid, and then subjecting same to second treatment followed by solid-liquid separation to obtain white carbon black for reinforcement, wherein the second treating liquid comprises hydrochloric acid and acetic acid. By means of the design of the preparation process, the preparation of the high-performance white carbon black is realized by means of secondary treatment by using treating liquids with specific components. The specific surface area of the prepared white carbon black can reach 200-230 cm2/g, and the reinforcing performance of the white carbon black when being used as a reinforcing material is also significantly improved. The mechanical properties of rubber products after reinforcement are improved.
Inventors:
CHEN NANFEI (CN)
LU AIPING (CN)
WANG MINGHE (CN)
CHEN CHEN (CN)
CHEN JIASHU (CN)
SHI TONG (CN)
LU AIPING (CN)
WANG MINGHE (CN)
CHEN CHEN (CN)
CHEN JIASHU (CN)
SHI TONG (CN)
Application Number:
PCT/CN2021/116856
Publication Date:
March 16, 2023
Filing Date:
September 07, 2021
Export Citation:
Assignee:
WUXI HENGCHENG SILICON IND CO LTD (CN)
International Classes:
C08K7/26; C01B33/12
Foreign References:
| CN103936015A | 2014-07-23 | |||
| CN109231222A | 2019-01-18 | |||
| CN111440358A | 2020-07-24 | |||
| US20100083876A1 | 2010-04-08 | |||
| CN109231223A | 2019-01-18 | |||
| CN111592002A | 2020-08-28 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
Download PDF: