Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2005-06-07
2005-06-07
Richter, Johann R. (Department: 1621)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S150000, C502S152000, C502S153000, C502S155000, C502S161000, C502S162000, C502S200000, C502S326000
Reexamination Certificate
active
06903044
ABSTRACT:
Disclosed is a new catalyst composition comprising a bimetallic Co—Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, cobalt-ruthenium-2,2′-bipyrimidine, 2,2′-dipyridyl, or 2,4,6-tripridyl-s-triazine catalyst precursors in cyclic ether solvents, such as 1,3-dioxolane, 1,4-dioxolane, 1,4-dioxane, and 2-ethyl-2-methyl-1,3-dioxolane, provide good yields of 1,3-PDO in a one step synthesis.
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Allen Kevin Dale
James Talmadge Gail
Knifton John Frederick
Powell Joseph Broun
Slaugh Lynn Henry
Haas Donald F.
Price Elvis O.
Richter Johann R.
Shell Oil Company
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