Title:
TITANIUM-BASED COMPOSITE CATALYST FOR POLYESTER SYNTHESIS AS WELL AS PREPARATION AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/123699
Kind Code:
A1
Abstract:
The present invention relates to a titanium-based composite catalyst for polyester synthesis, a preparation method therefor and an application thereof. The preparation method comprises: preparing a titanium-silicon catalyst precursor; adding the titanium-silicon catalyst precursor to a biochar material according to a certain mass ratio, uniformly mixing, and aging, drying, calcination and wet grinding to obtain a titanium-silicon composite catalyst; and then mixing the titanium-silicon composite catalyst and phosphate of which a mass ratio is 1:0.001-0.5 to obtain the titanium-based composite catalyst for polyester synthesis. In the titanium-based composite catalyst for polyester synthesis, phosphate is adsorbed and wrapped on the surface of the titanium-silicon composite catalyst, and phosphate is combined with a titanium-silicon catalyst in the titanium-silicon composite catalyst by means of the van der Waals acting force. When polyester is prepared by using the titanium-based composite catalyst for polyester synthesis, the addition amount is small, and the prepared polyester has good hue and narrow molecular mass distribution.
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Inventors:
XU JINLONG (CN)
WEI TIAN (CN)
MEI FENG (CN)
JI PENG (CN)
WANG HUAPING (CN)
WEI TIAN (CN)
MEI FENG (CN)
JI PENG (CN)
WANG HUAPING (CN)
Application Number:
PCT/CN2022/081847
Publication Date:
July 06, 2023
Filing Date:
March 19, 2022
Export Citation:
Assignee:
JIANGSU NEW HORIZON ADVANCED FUNCTIONAL FIBER INNOVATION CENTER CO LTD (CN)
International Classes:
C08G63/85; C08G63/16; C08G63/181; C08G63/183; C08G63/185; C08G63/87; C08K5/521
Foreign References:
| CN113999379A | 2022-02-01 | |||
| CN102391490A | 2012-03-28 | |||
| CN102492121A | 2012-06-13 | |||
| JP2001019751A | 2001-01-23 | |||
| CN109265668A | 2019-01-25 | |||
| JP2001288262A | 2001-10-16 | |||
| CN108727575A | 2018-11-02 |
Attorney, Agent or Firm:
TONGSHE INTELLECTUAL PROPERTY AGENCY (CN)
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