	US 11,980,870 B2
	Method of preparing solid-supported palladium catalyst
M. Nasiruzzaman Shaikh, Dhahran (SA)
Assigned to King Fahd University of Petroleum and Minerals, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Sep. 1, 2022, as Appl. No. 17/929,166.
Application 17/929,166 is a division of application No. 16/732,579, filed on Jan. 2, 2020, granted, now 11,471,861.
Prior Publication US 2023/0029112 A1, Jan. 26, 2023
Int. Cl. B01J 23/44 (2006.01); B01J 31/06 (2006.01); B01J 35/30 (2024.01); B01J 35/40 (2024.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01); B01J 37/16 (2006.01); C07C 1/26 (2006.01)

CPC B01J 23/44 (2013.01) [B01J 31/06 (2013.01); B01J 35/393 (2024.01); B01J 35/40 (2024.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); B01J 37/16 (2013.01); C07C 1/26 (2013.01); B01J 2231/4211 (2013.01); B01J 2231/4261 (2013.01); C07C 2523/44 (2013.01)]

17 Claims

1. A method of preparing a solid-supported palladium catalyst, the method comprising:

mixing a particulate matrix, comprising a-cellulose, hemicellulose, and lignin, with a palladium compound in an aqueous solution to form a suspension;

combining the suspension with a reducing agent to form a mixture; and

heating the mixture to thereby reduce at least 50 wt. % of the palladium compound, relative to total catalytic metal weight, and form the solid-supported palladium catalyst,

wherein particles of the particulate matrix have no average dimension less than 10 μm, and

wherein the lignin is present in the particulate matrix in a range of from 15 to 30 wt. % relative to total particulate matrix weight.