FIELD: chemistry.
SUBSTANCE: invention relates to catalytic chemistry. Disclosed is an inorganic solid catalyst based on silica sulphonic acid and/or silica phosphoric acid in the form of particles or powder (h-SSA), intended for catalysis of organic reactions, such as an isomerisation reaction, an esterification reaction, an alkylation reaction, olefin hydroamination reaction, condensation reaction, ether formation reaction, alcohol amination reaction, production reaction β-enaminoketone, multicomponent reaction, oxidation reaction, as well as an addition reaction, where said catalyst includes a matrix component (A): silicon-containing matrix not containing sulphonic acid and phosphoric acid groups; as well as silicic acid component (B): inorganic silica sulphonic acid and/or silica phosphoric acid containing a sulphonic acid group and/or a phosphoric acid group; wherein matrix component (A) in said catalyst based on silica sulphonic acid and/or silica phosphoric acid (h-SSA), it includes or is selected from one, two or three of the following silicon-containing matrix components: (1) - metasilicic acid, (2) - silica gel, (3) - silica; wherein inorganic silicic sulphonic acid and/or silicophosphoric acid containing a sulphonic acid group and / or a phosphoric acid group, includes one or more compounds selected from compounds of general formula (I), compounds of general formula (II) and compounds of general formula (III), where -AG1 and -AG2 are -O-SO3H, -O-PO3H2 or -OH independently of each other, and -AG1 and -AG2 are not simultaneously -OH; acid content in the solid acid catalyst (h-SSA) is 0.4–7.0 mmol/g, wherein said acid content is the content of acids measured for sulphonic acid groups and phosphoric acid groups covalently bonded in a solid acid catalyst (h-SSA); and the average particle size of the solid acid catalyst (h-SSA) is 15–700 mcm. Also disclosed are embodiments of a method of preparing an inorganic solid catalyst and use of said catalyst for isomerisation, esterification, alkylation, hydroamination of olefins, condensation, nitration, ether formation, amination of alcohol, reaction of obtaining β-enaminoketone, multicomponent reaction, oxidation reaction, as well as addition reaction.
EFFECT: disclosed inorganic solid catalyst has high acid content, high activity, and hydrothermal stability, as well as possibility of multiple use.
24 cl, 15 dwg, 2 tbl, 27 ex
