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1 786 718

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(51)

IPC

(21) (22)

Application

4906716/04, 1991-01-28

(22)

Actual filing date

1991-01-28

(45)

Published

1995-09-20

(72)

Inventor

Aleksandrova I.L.Strigina L.R.Koval'Skaja L.V.Votlokhin Ju.Z.Toporkova I.V.Zamanova L.P.Rzhevskaja N.A.

METHOD FOR PREPARATION OF BALL CATALYST FOR IMPROVEMENT OF SULFUR-BEARING GASOLINES Russian patent published in 1995 - IPC

Abstract SU 1786718 A1

FIELD: production of zeolite-containing catalysts. SUBSTANCE: method involves mixing suspension of high-silica zeolite with type Y zeolite at a concentration of 100 g/l and with gel-forming solutions sodium silicate and aluminium sulfate treated with 0.8-1.5 wt.-% of zinc salt in terms of zinc oxide in the catalyst, forming balls in mineral oil, carrying out ion exchange with a solution of ammonium nitrate mixed with rare-earth elements in a relation of 2.6: 8.3 in terms of dry matter, drying and calcining. EFFECT: improving gasolines and thermal processes in oil refining, bitumen and petrochemical industries. 1 tbl

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SU 1 786 718 A1

Authors

Aleksandrova I.L.

Strigina L.R.

Koval'Skaja L.V.

Votlokhin Ju.Z.

Toporkova I.V.

Zamanova L.P.

Rzhevskaja N.A.

Dates

1995-09-20—Published

1991-01-28—Filed