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Class Information
Number: 562/891
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carboxylic acid anhydrides (i.e., compounds having the -c(=o)-o-c(=o)- group) > Processes of forming the -c(=o)-o-c(=o)- group > Carbon monoxide or metal carbonyl reactant > Ether or carboxylic acid ester reactant
Description: Processes wherein an ether or a carboxylic acid ester is used as a reactant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7553991 |
Process for producing carboxylic acid anhydrides |
Jun. 30, 2009 |
| 6992212 |
Felxible method for the common production of formic acid, a carboxylic acid having at least two carbon atoms, and/or the derivatives of the same |
Jan. 31, 2006 |
| 6984755 |
Processes for the preparation of a carboxylic anhydride and use of the carboxylic anhydride as an acylation agent |
Jan. 10, 2006 |
| 6521783 |
Processes for preparing oxygenates |
Feb. 18, 2003 |
| 6420304 |
Polymer-supported carbonylation catalyst and its use |
Jul. 16, 2002 |
| 6222070 |
Method for reducing EDA in acetic anhydride production |
Apr. 24, 2001 |
| 6087533 |
Rhodium catalyzed carbonylation of an allylic butenol or butenyl ester to beta-gamma unsaturated anhydrides |
Jul. 11, 2000 |
| 6049005 |
Process to prepare a pentenoic acid anhydride |
Apr. 11, 2000 |
| 5939585 |
Process for the carbonylation of an alcohol |
Aug. 17, 1999 |
| 5892110 |
Heterogeneous catalyst for the production of acetic anhydride from methyl acetate |
Apr. 6, 1999 |
| 5648531 |
Process for producing acetic anhydride alone or acetic anhydride and acetic acid |
Jul. 15, 1997 |
| 5488143 |
Processes for the carbonylation of methanol to form acetic acid, methyl acetate and acetic anhydride |
Jan. 30, 1996 |
| 5385875 |
Method for stabilizing rhodium compound |
Jan. 31, 1995 |
| 5380929 |
Process for the preparation of acetic acid and acetic anhydride |
Jan. 10, 1995 |
| 5364822 |
Process for the recovery of group VIII noble metals |
Nov. 15, 1994 |
| 5362365 |
Purification of acetic anhydride or acetic anhydride and acetic acid using ozone |
Nov. 8, 1994 |
| 5360929 |
Process for the production of carboxylic acid anhydrides |
Nov. 1, 1994 |
| 5349102 |
Process for the preparation of phenyl carbonates or polycarbonates |
Sep. 20, 1994 |
| 5300198 |
Process for the separation of ethylidene diacetate from acetic anhydride |
Apr. 5, 1994 |
| 5298586 |
Process for the production of carboxylic acid anhydrides |
Mar. 29, 1994 |
| 5292948 |
Continuous process for the preparation of acetic anhydride or mixtures of acetic anhydride and acetic acid |
Mar. 8, 1994 |
| 5244545 |
Process for removing acetone from carbonylation processes |
Sep. 14, 1993 |
| 5220060 |
Method for making anhydride from ester using a palladium-containing catalyst system |
Jun. 15, 1993 |
| 5214205 |
Process for the preparation of acetic anhydride from methyl formate |
May. 25, 1993 |
| 5206434 |
Purification process for methyl acetate |
Apr. 27, 1993 |
| 5189203 |
Process for preparing acetic acid, methyl acetate, acetic anhydride or mixtures thereof |
Feb. 23, 1993 |
| 5138093 |
Process for preparing ethylidene diacetate |
Aug. 11, 1992 |
| 5124290 |
Process for removing metallic corrosion products from carbonylation reactions carried out under anhydrous conditions |
Jun. 23, 1992 |
| 5117046 |
Preparation of alkylidene diesters |
May. 26, 1992 |
| 5100850 |
Oxidative secondary rhodium recovery process |
Mar. 31, 1992 |
| 5097069 |
Process for decomposing .alpha.,.beta.-unsaturated carbonyl compounds in refining acetic anhydride and/or acetic acid |
Mar. 17, 1992 |
| 5057192 |
Acetone removal from acetic anhydride production process |
Oct. 15, 1991 |
| 5047377 |
Process for the purification and recovery of the contaminated solution of the catalyst produced on carbonylation of methanol and/or methyl acetate and/or dimethyl ether |
Sep. 10, 1991 |
| 5026907 |
Production of carboxylic acids from alcohols using rhodium complex catalysts and organic ester source |
Jun. 25, 1991 |
| 5026903 |
Production of ethylidene diacetate from dimethyl acetal |
Jun. 25, 1991 |
| 5008451 |
Methylene and oxymethylene bis-ester production |
Apr. 16, 1991 |
| 5002914 |
Process for purifying and recovering the contaminated catalyst solution arising in the carbonylation of methanol and/or methyl acetate and/or dimethyl ether |
Mar. 26, 1991 |
| 4985383 |
Process for removing metallic corrosion products from a contaminated catalyst solution produced on carbonylation of methanol and/or methyl acetate and/or dimethyl ether |
Jan. 15, 1991 |
| 4959498 |
Process for the preparation of monocarboxylic anhydrides |
Sep. 25, 1990 |
| 4952727 |
Process for the preparation of monocarboxylic anhydrides |
Aug. 28, 1990 |
| 4945075 |
Oxidative secondary rhodium recovery process |
Jul. 31, 1990 |
| 4927967 |
Production of carboxylic acids from organic formate esters using rhodium complex catalysts |
May. 22, 1990 |
| 4908477 |
Removal of organic iodine compounds from carbonylation products of methanol methyl acetate and dimethyl ether |
Mar. 13, 1990 |
| 4906415 |
Carrier-supported catalyst and process for making monocarboxylic anhydrides |
Mar. 6, 1990 |
| 4843170 |
Process for producing vinyl acetate |
Jun. 27, 1989 |
| 4792620 |
Carbonylation catalysts |
Dec. 20, 1988 |
| 4781868 |
Method for making unsaturated aliphatic carboxylic acid anhydrides |
Nov. 1, 1988 |
| 4776987 |
Carrier-supported catalyst and process for making mono-carboxylic anhydrides |
Oct. 11, 1988 |
| 4735749 |
Production of acetyl compound |
Apr. 5, 1988 |
| 4698187 |
Preparation of carboxylic acid anhydrides |
Oct. 6, 1987 |
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