CATALYST FOR ALKYLMERCAPTAN SYNTHESIS AND METHOD FOR ITS PRODUCTION Russian patent published in 2017 - IPC B01J23/30 B01J21/04 B01J35/02 B01J37/00 C07C319/08 C07C321/04 

FIELD: chemistry.

SUBSTANCE: catalyst preparation method includes an oxide inorganic carrier material and an oxide composition containing oxygen together with at least one alkali metal and tungsten. The method comprises the following stages: 1) providing at least one oxide inorganic material of a carrier in the form of particles of less than 1000 mcm in size, an oxide compound of tungsten. The tungsten oxide compound is selected from the group consisting of tungsten trioxide (WO₃), tungstic acid (WO₃⋅H₂O), metatungstic acid, paratungstic acid, isopolytungstic acids, heteropolytungstic acids, ammonium salts thererof, hydrates thereof and mixtures thereof and at least one separate alkali metal compound. At least one mentioned alkali metal compound is a basic alkali metal compound, 2) mixing the carrier material with an oxide tungsten compound and at least one separate alkali metal compound to form the catalyst composition, and 3) forming the resulting catalyst composition. A catalyst for obtaining alkylmercaptans and a method for obtaining alkylmercaptans are also proposed.

EFFECT: invention allows to obtain a catalyst which exhibits improved activity and selectivity in the reaction of hydrogen sulphide with alkanols to produce alkylmercaptans.

18 cl, 23 dwg, 5 tbl, 18 ex