JPS6313731B

PURPOSE:To obtain a modified catalyst composition storable after adjustment, and always usable when wanted, by kneading a catalyst modified with a modifying agent and a silicone resin having gas permeability, and solidifying them into a desired form. CONSTITUTION:A catalyst modified with a modifying...

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Bibliographische Detailangaben
Hauptverfasser:	IMACHI YOSHIMI, IZUMI MIHARU, HARADA TADAO, TAI AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a modified catalyst composition storable after adjustment, and always usable when wanted, by kneading a catalyst modified with a modifying agent and a silicone resin having gas permeability, and solidifying them into a desired form. CONSTITUTION:A catalyst modified with a modifying agent is kneaded with a silicone resin having gas permeability, and solidified into a desired form to prepare a new type of modified catalyst composition having storage stability after adjustment, and cnvenience of being always usable when wanted. As catalysts used for this catalyst composition are Raney nickel, reduced nickel catalyt, etc., and they are modified with a modifying agent, such as tartaric acid and sodium bromide to obtain a modified catalyst. Stereoselective reduction using this catalyst can be carried out by hydrogenating a starting material in a solvent or without any solvent in presence of this catalyst composition by the ordinary method.