Title:
METHOD FOR DESULFURIZATION OF WASTE TIRE BY USING SUPERCRITICAL CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO/2023/103113
Kind Code:
A1
Abstract:
The present invention relates to the technical field of desulfurization of waste tires, and provides a method for desulfurization of a waste tire by using supercritical carbon dioxide. According to the method, under specific temperature and pressure conditions, supercritical carbon dioxide is used as a reaction medium, and has excellent solubility and permeability, so that the tire can be swelled in the reaction process, and a desulfurizing agent is introduced into the tire and reacts with a main chain or a cross-linking bond in a cross-linked network structure to remove the sulfur element from the interior of the tire. The method is simple in technology process, high in process controllability, and easy to operate.
Inventors:
LIU NING (CN)
WANG XINGLI (CN)
YU GANGQIANG (CN)
DAI CHENGNA (CN)
CHEN BIAOHUA (CN)
XU RUINIAN (CN)
WANG NING (CN)
WANG XINGLI (CN)
YU GANGQIANG (CN)
DAI CHENGNA (CN)
CHEN BIAOHUA (CN)
XU RUINIAN (CN)
WANG NING (CN)
Application Number:
PCT/CN2021/141609
Publication Date:
June 15, 2023
Filing Date:
December 27, 2021
Export Citation:
Assignee:
UNIV BEIJING TECHNOLOGY (CN)
International Classes:
C08J11/28; C08J11/10; C08L19/00
Foreign References:
| CN111647198A | 2020-09-11 | |||
| CN101503525A | 2009-08-12 | |||
| CN111745860A | 2020-10-09 | |||
| CN106397829A | 2017-02-15 | |||
| CN104387611A | 2015-03-04 | |||
| JP2000095895A | 2000-04-04 |
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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