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1 557 741

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A1

(51)

IPC

(21) (22)

Application

4372092/04, 1988-01-27

(22)

Actual filing date

1988-01-27

(45)

Published

1995-09-10

(72)

Inventor

Aleksandrova I.L.Zamanova L.P.Khadzhiev S.N.Strygina L.R.Koval'Skaja L.V.Borodatskaja T.G.Zjuba B.I.Levinter M.E.Bakulin R.A.

METHOD OF PREPARING BEAD CATALYST FOR GASOLINE FRACTIONS REFINING Russian patent published in 1995 - IPC

Abstract SU 1557741 A1

FIELD: catalytic chemistry. SUBSTANCE: catalyst is prepared by mixing zeolite suspension of pentasil type (40-150 g/l) followed by bead forming in the medium of mineral oil, their ionic exchange with aqueous solutions of ammonium salt and zinc salt at the mass ratio: bead and ammonium salt 1: (0.5-1.6) and bead and zinc salt 1:(0.03-0.13) as zinc oxide, drying and calcination. Under these conditions catalyst activity is increased as compared with that of zeocar-2 (gasoline yield is increased from 85 to 97.2% temperature is decreased by 15 C, aromatic compound content in catalysate is increased from 29.6% to 36%). Mechanical strength of catalyst (for abrasion in air lift) is improved from 3.3-3.8 to 4-6 mas. x mas.% h-1. EFFECT: enhanced activity and mechanical strength. 1 tbl

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SU 1 557 741 A1

Authors

Aleksandrova I.L.

Zamanova L.P.

Khadzhiev S.N.

Strygina L.R.

Koval'Skaja L.V.

Borodatskaja T.G.

Zjuba B.I.

Levinter M.E.

Bakulin R.A.

Dates

1995-09-10—Published

1988-01-27—Filed

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