HUT63623A - Process for producing high purity hexahydrophthalic anhydride by catalytic hydrogenation under pressure of tetrahydrophthalic anhydride - Google Patents

Process for producing high purity hexahydrophthalic anhydride by catalytic hydrogenation under pressure of tetrahydrophthalic anhydride

Info

Publication number
HUT63623A
HUT63623A HU395991A HU395991A HUT63623A HU T63623 A HUT63623 A HU T63623A HU 395991 A HU395991 A HU 395991A HU 395991 A HU395991 A HU 395991A HU T63623 A HUT63623 A HU T63623A
Authority
HU
Hungary
Prior art keywords
anhydride
high purity
soln
under pressure
catalytic hydrogenation
Prior art date
Application number
HU395991A
Other languages
Hungarian (hu)
Other versions
HU913959D0 (en
HU210274B (en
Inventor
Imre Somogyi
Laszlo Nemeth
Janos Forstner
Istvan Szabados
Bela Jover
Imre Kovacs
Gyula Raksi
Laszlo Mendre
Ferenc Buella
Sandor Konya
Istvan Molnar
Laszlo Lazar
Istvan Ulrich
Jozsef Horvath
Ernoe RATOSI
Miklos Csegezy
Gabor Pazmanyi
Tibor Simon
Original Assignee
Mol Magyar Olaj Es Gazipari Rt
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mol Magyar Olaj Es Gazipari Rt filed Critical Mol Magyar Olaj Es Gazipari Rt
Priority to HU395991A priority Critical patent/HU210274B/en
Publication of HU913959D0 publication Critical patent/HU913959D0/en
Publication of HUT63623A publication Critical patent/HUT63623A/en
Publication of HU210274B publication Critical patent/HU210274B/en

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  • Furan Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Hexa:hydro-phthalic-acid-anhydride is prepd. using a 5-40 mol% soln. of tetra:hydro-phthalic acid in an organic sorbent. The soln. is passed through an aluminium-silicate supported nickel catalyst, previously treated by chlorine gas, a chlorine-contg. gas mixt. or by a chlorine contg. cpd. The tetra:hydro-phthalic-acid soln. is passed through the catalyst at a soln.-velocity of 1-10 cum/cum.x Hr, (5-100)x100000 Pa pressure and 2p-150 deg.C temp. Following hydrogenation, the high purity prod. is obtd. by a usual solvent removal process.
HU395991A 1991-12-16 1991-12-16 Process for producing high purity hexahydrophthalic anhydride by pressurized catalytic hydrogenation of tetrahydrophthalic anhydride HU210274B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU395991A HU210274B (en) 1991-12-16 1991-12-16 Process for producing high purity hexahydrophthalic anhydride by pressurized catalytic hydrogenation of tetrahydrophthalic anhydride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU395991A HU210274B (en) 1991-12-16 1991-12-16 Process for producing high purity hexahydrophthalic anhydride by pressurized catalytic hydrogenation of tetrahydrophthalic anhydride

Publications (3)

Publication Number Publication Date
HU913959D0 HU913959D0 (en) 1992-02-28
HUT63623A true HUT63623A (en) 1993-09-28
HU210274B HU210274B (en) 1995-03-28

Family

ID=10966243

Family Applications (1)

Application Number Title Priority Date Filing Date
HU395991A HU210274B (en) 1991-12-16 1991-12-16 Process for producing high purity hexahydrophthalic anhydride by pressurized catalytic hydrogenation of tetrahydrophthalic anhydride

Country Status (1)

Country Link
HU (1) HU210274B (en)

Also Published As

Publication number Publication date
HU913959D0 (en) 1992-02-28
HU210274B (en) 1995-03-28

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Legal Events

Date Code Title Description
HMM4 Cancellation of final prot. due to non-payment of fee