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2 668 276

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IPC

C07D319/06(2006-01-01)

B01J29/70(2006-01-01)

(21) (22)

Application

2016136622, 2016-09-12

(24)

Start date

2016-09-12

(22)

Actual filing date

2016-09-12

(45)

Published

2018-09-28

(72)

Inventor

Talipov Rifkat FaatovichVakulin Ivan ValentinovichTukhvatshin Vadim SalavatovichOvchinnikov Grigorij AndreevichNasyrov Ildus ShajkhitdinovichIshmuratov Gumer YusupovichGorskikh Valentina Andreevna

(73)

Holder

Federalnoe Gosudarstvennoe Byudzhetnoe Obrazovatelnoe Uchrezhdenie Vysshego Obrazovaniya Gosudarstvennyj Universitet"

APPLICATION OF SYNTHETIC ZEOLITES FOR INCREASING SELECTIVITY IN THE PRODUCTION OF 4,4-DIMETHYL-1,3-DIOXANE (OPTIONS) Russian patent published in 2018 - IPC C07D319/06 B01J29/70

Abstract RU 2668276 C2

FIELD: biochemistry.

SUBSTANCE: invention relates to basic organic and petrochemical synthesis and can be used for producing 4,4-dimethyl-1,3-dioxane by condensation of isobutylene and formaldehyde. Proposed are synthetic zeolites of general formula Na₁₂[(AlO₂)₁₂(SiO₂)₁₂]xH₂O grade NaA with pore diameter 4 Å or Ca_4,5Na₃[(AlO₂)₁₂(SiO₂)₁₂]xH₂O grade CaA with pore diameter 5 Å as heterogeneous cocatalysts. Synthesis of DMD is carried out in the presence of phosphoric acid, taken as the basic acid catalyst.

EFFECT: technical result is the increased selectivity in the production of 4,4-dimethyl-1,3-dioxane.

3 cl, 3 ex, 1 tbl

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RU 2 668 276 C2

Authors

Talipov Rifkat Faatovich

Vakulin Ivan Valentinovich

Tukhvatshin Vadim Salavatovich

Ovchinnikov Grigorij Andreevich

Nasyrov Ildus Shajkhitdinovich

Ishmuratov Gumer Yusupovich

Gorskikh Valentina Andreevna

Dates

2018-09-28—Published

2016-09-12—Filed