GB1362285A - Process for the production of a catalyst and its use in the produc tion of hydroxy-diphenyls - Google Patents

Process for the production of a catalyst and its use in the produc tion of hydroxy-diphenyls

Info

Publication number
GB1362285A
GB1362285A GB4270572A GB4270572A GB1362285A GB 1362285 A GB1362285 A GB 1362285A GB 4270572 A GB4270572 A GB 4270572A GB 4270572 A GB4270572 A GB 4270572A GB 1362285 A GB1362285 A GB 1362285A
Authority
GB
United Kingdom
Prior art keywords
catalyst
treated
nickel
alkali metal
elemental
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4270572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
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
Priority claimed from DE2049809A external-priority patent/DE2049809C3/en
Priority claimed from DE2102476A external-priority patent/DE2102476C3/en
Priority claimed from DE19712146052 external-priority patent/DE2146052C3/en
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1362285A publication Critical patent/GB1362285A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/86—Chromium
    • B01J23/868—Chromium copper and chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/86—Chromium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/06—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation
    • C07C37/07—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by conversion of non-aromatic six-membered rings or of such rings formed in situ into aromatic six-membered rings, e.g. by dehydrogenation with simultaneous reduction of C=O group in that ring

Abstract

1362285 Dehydrogenation catalysts BAYER AG 14 Sept 1972 [15 Sept 1971 24 June 1972] 42705/72 Addition to 1362284 Heading B1E [Also in Division C2] Dehydrogenation catalyst comprising (a) alkali metal carbonate and/or alkali metal sulphate, (b) copper, aluminium and chromium in elemental and/or combined form, (c) elemental nickel and, optionally, (d) nickel in combined form, which catalyst has an elemental nickel content greater than 35 but not greater than 45 weight per cent, preferably not greater than 42 weight per cent, is prepared by the process disclosed in Specification 1,362,284. As exemplified, catalyst is prepared by a procedure wherein a copper-aluminium-nickel hydroxidecarbonate mixture is precipitated from nitrate solution by means of alkali metal carbonate solution and thereafter is washed, reacted with ammonium 'bichromate, impregnated with potassium sulphate by suspension in an aqueous solution thereof, dried at 120‹C, ground, formed into tablets with graphite, treated with hydrogen in admixture with nitrogen at an elevated temperature, cooled, treated with air in admixture with nitrogen, ground, formed into tablets with graphite, treated with hydrogen at an elevated temperature and treated with carbon dioxide at 100‹C.
GB4270572A 1970-10-10 1972-09-14 Process for the production of a catalyst and its use in the produc tion of hydroxy-diphenyls Expired GB1362285A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2049809A DE2049809C3 (en) 1970-10-10 1970-10-10 Dehydrogenation catalyst
DE2102476A DE2102476C3 (en) 1970-10-10 1971-01-20 Process for the purification of o-hydroxydiphenyl
DE19712146052 DE2146052C3 (en) 1971-09-15 Process for the preparation of a catalyst for the synthesis of hydroxydiphenyl

Publications (1)

Publication Number Publication Date
GB1362285A true GB1362285A (en) 1974-08-07

Family

ID=27182923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4270572A Expired GB1362285A (en) 1970-10-10 1972-09-14 Process for the production of a catalyst and its use in the produc tion of hydroxy-diphenyls

Country Status (1)

Country Link
GB (1) GB1362285A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057581A (en) * 1975-05-10 1977-11-08 Bayer Aktiengesellschaft Process for preparing diphenylamines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4057581A (en) * 1975-05-10 1977-11-08 Bayer Aktiengesellschaft Process for preparing diphenylamines

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee