Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Reexamination Certificate
2006-10-03
2006-10-03
Price, Elvis O (Department: 1621)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
C502S102000, C502S150000, C502S152000, C502S154000, C502S326000, C502S333000, C502S334000, C502S339000
Reexamination Certificate
active
07115540
ABSTRACT:
This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt carbonyl compound and a cocatalyst metal compound ligated with a ligand in a ligand to cocatalyst metal atom molar ratio in the range of 0.2:1.0 to 0.6:1.0, optionally in the presence of a promoter, where recovery of product is preferably accomplished via water extraction of a diol rich phase from the bulk reaction mixture. The process modifications can, particularly in combination, be beneficial with respect to product recovery, catalyst recycle, and overall economics of a one-step process for producing aliphatic 1,3-diols.
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Allen Kevin Dale
Arhancet Juan Pedro
Knifton John Frederick
Powell Joseph Broun
Slaugh Lynn Henry
Price Elvis O
Shell Oil Company
Taylor Richard B.
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