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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12735374 B1

PDFFull Text
Date of Patent:
Sep. 15, 2026

Filed:

Jan. 17, 2023

Preparation method of trans-1,1,1,4,4,4-hexafluoro-2-butene

Applicants:

Guangdong Power Grid Co., Ltd., Guangzhou, CN;

Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou, CN;

Inventors:

Nian Tang, Guangzhou, CN;

Dongwei Sun, Guangzhou, CN;

Zhi Li, Guangzhou, CN;

Xiaodian Li, Guangzhou, CN;

Li Li, Guangzhou, CN;

Manjun Zhang, Guangzhou, CN;

Assignees:

GUANGDONG POWER GRID CO., LTD., Guangzhou, CN;

ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID CO., LTD., Guangzhou, CN;

Attorney:
Primary Examiner:

Sikarl A Witherspoon

Int. Cl.
CPC ...
C07C 17/35 (2006.01); B01J 23/02 (2006.01); B01J 23/58 (2006.01); B01J 23/89 (2006.01); B01J 35/30 (2024.01); B01J 35/61 (2024.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/08 (2006.01);
U.S. Cl.
CPC ...
C07C 17/35 (2013.01); B01J 23/02 (2013.01); B01J 23/58 (2013.01); B01J 23/8946 (2013.01); B01J 35/394 (2024.01); B01J 35/615 (2024.01); B01J 37/0018 (2013.01); B01J 37/0225 (2013.01); B01J 37/0236 (2013.01); B01J 37/08 (2013.01);
Abstract

The present invention belongs to the technical field of fluorine chemical industry, specifically relates to a preparation method of trans-1,1,1,4,4,4-hexafluoro-2-butene, comprising the following steps: preheating trans-2-ethoxy-1,1,1,4,4,4-hexafluoro-2-butene, mixing with hydrogen, reacting to obtain trans-1,1,1,4,4,4-hexafluoro-2-butene under the action of a catalyst. The selectivity of trans 1,1,1,4,4,4-hexafluoro-2-butene prepared by the preparation method of the present invention can reach 99%, the preparation method adopts moderate reaction temperature and produces less three wastes. The trans 1,1,1,4,4,4-hexafluoro-2-butene prepared by the preparation method has great application value in electric power, electrical appliances and electronics industries.

Find Patent Forward Citations

Tang, Nian. (2026). Preparation method of trans-1,1,1,4,4,4-hexafluoro-2-butene (U.S. Patent No. 12735374). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12735374

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