GB713282A - Process for the preparation of chromium silicate-type catalysts - Google Patents

Process for the preparation of chromium silicate-type catalysts

Info

Publication number
GB713282A
GB713282A GB1147952A GB1147952A GB713282A GB 713282 A GB713282 A GB 713282A GB 1147952 A GB1147952 A GB 1147952A GB 1147952 A GB1147952 A GB 1147952A GB 713282 A GB713282 A GB 713282A
Authority
GB
United Kingdom
Prior art keywords
silica
group
chromium
chromate
heating
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
GB1147952A
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.)
John & James White Ltd
THOMAS FAIRLIE CAMPBELL
Original Assignee
John & James White Ltd
THOMAS FAIRLIE CAMPBELL
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 John & James White Ltd, THOMAS FAIRLIE CAMPBELL filed Critical John & James White Ltd
Priority to GB1147952A priority Critical patent/GB713282A/en
Publication of GB713282A publication Critical patent/GB713282A/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
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/26—Chromium

Abstract

A chromium silicate type catalyst is prepared by heating together silica, an alkali metal chromate and a catalytic quantity (e.g. 0.1-0.5 per cent. calculated as oxide) of a compound of an element of the group consisting of iron and the elements of Group 2 of the Periodic Table. Preferably 0.5-4 parts by weight of the chromate are used for 6 parts of silica, and heating is carried out at a temperature not below 800 DEG C. The products may be regarded as solutions of chromium sesquioxide in silica, as chromium silicates, or as complex alkali-metal silicates. A compound having the formula M2O.Cr2O3, (SiO2)5 is claimed. Examples describe heating mixtures containing ground sand or quartz, sodium chromate, calcium chloride and ferric chloride. Silica may be added to an aqueous solution of the other substances and the mixture evaporated to dryness. Copper, zinc, bismuth, magnesium, titanium, vanadium, manganese, molybdenum or tungsten as oxides or borates may be added as promoters. The catalyst may be powdered or formed into pellets or roughly spheroidal bodies. The Provisional Specification states that Group VIII metals may be used in addition to Group II metals.
GB1147952A 1952-05-07 1952-05-07 Process for the preparation of chromium silicate-type catalysts Expired GB713282A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1147952A GB713282A (en) 1952-05-07 1952-05-07 Process for the preparation of chromium silicate-type catalysts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1147952A GB713282A (en) 1952-05-07 1952-05-07 Process for the preparation of chromium silicate-type catalysts

Publications (1)

Publication Number Publication Date
GB713282A true GB713282A (en) 1954-08-11

Family

ID=9987008

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1147952A Expired GB713282A (en) 1952-05-07 1952-05-07 Process for the preparation of chromium silicate-type catalysts

Country Status (1)

Country Link
GB (1) GB713282A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5169823A (en) * 1990-07-05 1992-12-08 Mitsui Toatsu Chemicals, Inc. Method for stabilizing treatment of catalytic activity

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5169823A (en) * 1990-07-05 1992-12-08 Mitsui Toatsu Chemicals, Inc. Method for stabilizing treatment of catalytic activity

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