| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 562518000 | Of aldehyde or ketone | 8 |
| 20100087679 | METHOD FOR THE PRODUCTION OF ALPHA-DETO ACIDS AND ESTERS THEREOF - The invention relates to a method for the production of a-keto acids and esters thereof, in particular to a method of producing | 04-08-2010 |
| 20110166383 | PROCESS FOR THE PRODUCTION OF GLYCOLIC ACID - A process for producing glycolic acid from carbon monoxide and formaldehyde using a catalyst comprising an acidic polyoxometalate compound encapsulated within the pores of a zeolite, wherein the zeolite has cages larger than the acidic polyoxometalate compound, the zeolite also having pores with a diameter smaller than that of the acidic polyoxometalate compound. | 07-07-2011 |
| 20120078010 | PROCESS FOR RECOVERING AND RECYCLING AN ACID CATALYST - Disclosed is a process for the extractive recovery of an acid catalyst from an aqueous mixture of glycolic acid with an extraction solvent comprising a tertiary amine or an onium carboxylate compound, a modifier, and a diluent. The acid catalyst, which can comprise strong acids such as sulfuric acid, alkyl sulfonic acids, and fluoroalkyl sulfonic acids, can be recovered by back extraction with aqueous formaldehyde and recycled to a process for the preparation of glycolic acid by the acid-catalyzed carbonylation of formaldehyde. | 03-29-2012 |
| 20120078011 | PUMP AROUND REACTOR FOR PRODUCTION OF ACETIC ACID - The present invention relates to improved processes for the manufacture of acetic acid. A pump around reactor is used to produce additional heat for the production of steam. The pump around reactor receives a portion of the reaction solution produced by the carbonylation reactor and further reacts that portion with additional carbon monoxide and/or reactants. | 03-29-2012 |
| 20120215027 | PROCESS FOR RECOVERING AND RECYCLING AN ACID CATALYST - Disclosed is a process for the extractive recovery of an acid catalyst from an aqueous mixture of glycolic acid with an extraction solvent comprising a tertiary amine or an onium carboxylate compound, a modifier, and a diluent. The acid catalyst, which can comprise strong acids such as sulfuric acid, alkyl sulfonic acids, and fluoroalkyl sulfonic acids, can be recovered by back extraction with aqueous formaldehyde and recycled to a process for the preparation of glycolic acid by the acid-catalyzed carbonylation of formaldehyde. Also disclosed is a process for the preparation of glycolic acid by the acid-catalyzed hydrocarboxylation of formaldehyde. | 08-23-2012 |
| 20120245381 | METHOD FOR PRODUCING N-ACYLAMINO ACID - There is provided a method for producing N-acylamino acid of formula (I): | 09-27-2012 |
| 20130116469 | PROCESS FOR PRODUCING N-ACYL AMINO ACIDS - An object of the present invention is to provide a process for producing an N-acyl amino acid (1) in a good yield. The present invention provides a process for producing an N-acyl amino acid (1) by reacting an aldehyde compound (2), an amide compound (3), and carbon monoxide in the solvent in a reactor in the presence of a cobalt compound and hydrogen, characterized in the aldehyde compound (2), the amide compound (3) and the solvent are supplied to the reactor in which the solvent, the cobalt compound, hydrogen and carbon monoxide have been placed in advance. | 05-09-2013 |
| 20130261333 | HYDROCARBOXYLATION OF FORMALDEHYDE IN THE PRESENCE OF A HIGHER ORDER CARBOXYLIC ACID AND HETEROGENEOUS CATALYST - Disclosed is a process for the production and purification of glycolic acid or glycolic acid derivatives by the carbonylation of formaldehyde in the presence of a solid acid catalyst and a carboxylic acid. This invention discloses hydrocarboxylations and corresponding glycolic acid separations wherein the glycolic acid stream is readily removed from the carboxylic acid and the carboxylic acid is recycled. | 10-03-2013 |
