公开(公告)号：US20220297099A1

公开(公告)日：2022-09-22

申请号：US17833129

申请日：2022-06-06

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chih-Yao YANG ,  Kuo-Ching WU ,  Hsi-Yen HSU ,  Yu-Shan CHAO

IPC: B01J31/12 ,  C07C68/01 ,  C07C68/04

Abstract: A method of forming dialkyl carbonate is provided, which includes introducing carbon dioxide into a catalyst to form dialkyl carbonate, wherein the catalyst is formed by activating a catalyst precursor using alcohol, wherein alcohol is R3—OH, and R3 is C1-12 alkyl group or C5-12 aryl or heteroaryl group. The catalyst precursor is formed by reacting Sn(R1)2(L)2 and Ti(OR2)4, and Sn(R1)2(L)2 and Ti(OR2)4 have a molar ratio of 1:2 to 2:1. R1 is C1-10 alkyl group, R2 is H or C1-12 alkyl group, and L is O—(C═O)—R5, and R5 is C1-12 alkyl group. The dialkyl carbonate is

公开(公告)号：US20210178374A1

公开(公告)日：2021-06-17

申请号：US16727483

申请日：2019-12-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chih-Yao YANG ,  Kuo-Ching WU ,  Hsi-Yen HSU ,  Yu-Shan CHAO

IPC: B01J31/12 ,  C07C68/01

Abstract: A method of forming dialkyl carbonate is provided, which includes introducing carbon dioxide into a catalyst to form dialkyl carbonate, wherein the catalyst is formed by activating a catalyst precursor using alcohol, wherein alcohol is R3—OH, and R3 is C1-12 alkyl group or C5-12 aryl or heteroaryl group. The catalyst precursor is formed by reacting Sn(R1)2(L)2 and Ti(OR2)4, and Sn(R1)2(L)2 and Ti(OR2)4 have a molar ratio of 1:2 to 2:1. R1 is C1-10 alkyl group, R2 is H or C1-12 alkyl group, and L is O—(C═O)—R5, and R5 is C1-12 alkyl group. The dialkyl carbonate is