Processes for separating a di-carboxylic acid or salt thereof from a mixture containing the di-carboxylic acid or salt thereof and one or more other components are provided. Also separation media useful for these separation processes is provided. In particular, processes for preparing an aldaric acid are described, such as glucaric acid from glucose, which includes separating the aldaric acid from the reaction product. Also, various glucaric acid products are described.

The present invention concerns a process of oxidizing an alcohol for the production of its corresponding carbonyl compounds wherein the oxidation is performed with oxygen or gases containing oxygen in the presence of a catalyst comprising at least a gold compound and a copper compound. Said alcohol oxidation by gaseous oxidant can achieve a high yield and selectivity with minimized degradation products or waste organic solvents.

The present invention concerns a process of oxidizing an alcohol for the production of its corresponding carbonyl compounds wherein the oxidation is performed with oxygen or gases containing oxygen in the presence of a catalyst comprising at least a gold compound and a copper compound. Said alcohol oxidation by gaseous oxidant can achieve a high yield and selectivity with minimized degradation products or waste organic solvents.

The present invention refers to a catalytic system comprising a transition metal compound on a solid carrier, wherein the content of the transition metal element on the surface of the solid carrier is from 0.1 to 30 wt.-%, based on the dry weight of the solid carrier. Furthermore, the present invention refers to a method for manufacturing the catalytic system, the use of the inventive catalytic system in a chemical reaction, the use of a solid carrier loaded with a transition metal as a catalyst and to granules mouldings or extrudates comprising the catalytic system.

The present invention refers to a catalytic system comprising a transition metal compound on a solid carrier, wherein the content of the transition metal element on the surface of the solid carrier is from 0.1 to 30 wt.-%, based on the dry weight of the solid carrier. Furthermore, the present invention refers to a method for manufacturing the catalytic system, the use of the inventive catalytic system in a chemical reaction, the use of a solid carrier loaded with a transition metal as a catalyst and to granules mouldings or extrudates comprising the catalytic system.

The present invention refers to a catalytic system comprising a transition metal compound on a solid carrier, wherein the content of the transition metal element on the surface of the solid carrier is from 0.1 to 30 wt.-%, based on the dry weight of the solid carrier. Furthermore, the present invention refers to a method for manufacturing the catalytic system, the use of the inventive catalytic system in a chemical reaction, the use of a solid carrier loaded with a transition metal as a catalyst and to granules mouldings or extrudates comprising the catalytic system.

Edible organic compounds which can serve as food or feed, or as components of food or feed, are synthesized from oxidized carbon and water, through the input of energy, and using well-known and validated synthesis pathways, leading to free fatty acids and optionally esterified to triglycerides. The source of carbon is preferably CO.sub.2 from the atmosphere, or more preferably point sources of CO.sub.2 from industry and/or energy production.

Edible organic compounds which can serve as food or feed, or as components of food or feed, are synthesized from oxidized carbon and water, through the input of energy, and using well-known and validated synthesis pathways, leading to free fatty acids and optionally esterified to triglycerides. The source of carbon is preferably CO.sub.2 from the atmosphere, or more preferably point sources of CO.sub.2 from industry and/or energy production.

Edible organic compounds which can serve as food or feed, or as components of food or feed, are synthesized from oxidized carbon and water, through the input of energy, and using well-known and validated synthesis pathways, leading to free fatty acids and optionally esterified to triglycerides. The source of carbon is preferably CO.sub.2 from the atmosphere, or more preferably point sources of CO.sub.2 from industry and/or energy production.

The invention concerns a synthesis process of a compound of the following formula (I) or one of the salts thereof, ##STR00001## wherein R represents a COOH, CH.sub.2OH or CHO group, comprising the step according to which the but-3-ene-1,2-diol (BDO) is subjected to an oxidation in the presence of a catalyst, said catalyst comprising an active phase based on at least one noble metal selected from palladium, gold, silver, platinum, rhodium, osmium, ruthenium and iridium, and a support containing alkaline sites. The invention also concerns the application of this reaction to the preparation of bioavailable compounds of methionine used, in particular, in animal nutrition.