Catalyst precursor
AssigneeIndustrial Technology Research Institute
InventorsChih-Yao Yang, Kuo-Ching Wu, Hsi-Yen Hsu, Yu-Shan Chao
Life of this patent
Estimating the term…
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
Claims2
A catalyst precursor, being formed by reacting Sn(R1)2(L)2 and Ti(OR2)4, wherein Sn(R1)2(L)2 and Ti(OR2)4 have a molar ratio of 1:1,
- 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, and
- wherein the catalyst precursor has a chemical structure of
Dependencies are inferred from the claim text.