Process for the production of a carboxylic acid
Patent 5510524 Issued on April 23, 1996. Estimated Expiration Date: 
June 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3769329 3772380 Process for purifying and recovering catalyst solution contaminated during the carbonylation of methyl acetate and/or dimethylether Alcohols production by hydrogenation of carboxylic acids Process for converting formate esters to carboxylic acids Catalyzed hydrogenation of carboxylic acids and their anhydrides to alcohols and/or esters Heterocyclic polymethine dyes with carbamate or amide groups Patent #: 5221751 InventorsAssigneeApplicationNo. 458692 filed on 06/02/1995US Classes:562/519, Of alcohol or alcoholate562/522, Group VIII metal containing catalyst utilized562/607Acetic acid per se or salt thereofExaminersPrimary: Prescott, Arthur C.Attorney, Agent or FirmForeign Patent References
International ClassesC07C 053/08C07C 053/12 C07C 051/12 Foreign Application Priority Data1995-02-21 GBAbstractA process for the production of a carboxylic acid by carbonylation of an alkyl alcohol or its reactive derivative comprises contacting the reactant with carbon monoxide in a liquid reaction composition comprising: (a) an iridium catalyst or rhodium catalyst, (b) alkyl halide, (c) at least a finite concentration of water and (d) rhenium as promoter.Other References
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