GB675914A - Process for impregnating the surface of porous carrier material for the preparation of catalysts - Google Patents

Process for impregnating the surface of porous carrier material for the preparation of catalysts

Info

Publication number
GB675914A
GB675914A GB20149/50A GB2014950A GB675914A GB 675914 A GB675914 A GB 675914A GB 20149/50 A GB20149/50 A GB 20149/50A GB 2014950 A GB2014950 A GB 2014950A GB 675914 A GB675914 A GB 675914A
Authority
GB
United Kingdom
Prior art keywords
solution
carrier
temperature
coating
tube
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
GB20149/50A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB675914A publication Critical patent/GB675914A/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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0207—Pretreatment of the support
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • 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
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

In the preparation of catalysts by impregnating the surface of porous carrier material with solutions, e.g. of salts of platinum, gold, or nickel, the carrier is heated to a temperature above the boiling point of the impregnating solution and the solution is at a temperature close to or at its boiling point. A carrier, e.g. of ceramic material, which has a low resistance to temperature changes, is heated to only a little above the temperature of the solution. The depth of penetration of the solution may be controlled by varying the temperature difference between the solution and the carrier. After impregnation the catalyst may be fixed by heating, oxidation, or reduction, and the steps of impregnation and fixing may be repeated. Examples describe the coating of a porous alumina tube with platinum, and of ring-shaped bodies of sillimanite with nickel. In coating the inner surface of a tube, the impregnating solution may be passed through the tube.ALSO:In coating porous carrier material with metals to form catalysts by impregnation with solutions of salts of the metals and subsequent reduction, the carrier is heated to a temperature above the boiling point of the solution and the solution is used at a temperature close to or at its boiling point. A carrier, e.g. of ceramic material, which has a low resistance to temperature changes, is heated to only a little above the temperature of the solution. The depth of penetration of the solution may be controlled by varying the temperature difference between the solution and the carrier. Impregnation and reduction may be repeated. Examples describe coating (1) a porous alumina tube with platinum, and (2) ring-shaped bodies of sillimanite with nickel. Coating with gold is also referred to. In coating the inner surface of a tube, the impregnating solution may be passed through the tube.
GB20149/50A 1949-09-09 1950-08-14 Process for impregnating the surface of porous carrier material for the preparation of catalysts Expired GB675914A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE675914X 1949-09-09

Publications (1)

Publication Number Publication Date
GB675914A true GB675914A (en) 1952-07-16

Family

ID=6593800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20149/50A Expired GB675914A (en) 1949-09-09 1950-08-14 Process for impregnating the surface of porous carrier material for the preparation of catalysts

Country Status (2)

Country Link
FR (1) FR1023052A (en)
GB (1) GB675914A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071537A (en) * 1958-05-20 1963-01-01 British Petroleum Co Catalytic reforming of petroleum hydrocarbons
US3158564A (en) * 1961-01-26 1964-11-24 Texaco Inc Process for hydrocarbon conversion
EP0083791A2 (en) * 1982-01-09 1983-07-20 Bayer Ag Shaped articles containing silica, processes for their preparation and their use

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3734429A1 (en) * 1987-10-12 1989-04-20 Kraftanlagen Ag METHOD FOR PRODUCING CATALYTICALLY ACTIVE POWDERED MIXING PHASES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071537A (en) * 1958-05-20 1963-01-01 British Petroleum Co Catalytic reforming of petroleum hydrocarbons
US3158564A (en) * 1961-01-26 1964-11-24 Texaco Inc Process for hydrocarbon conversion
EP0083791A2 (en) * 1982-01-09 1983-07-20 Bayer Ag Shaped articles containing silica, processes for their preparation and their use
EP0083791A3 (en) * 1982-01-09 1984-07-25 Bayer Ag Shaped articles containing silica, processes for their preparation and their use

Also Published As

Publication number Publication date
FR1023052A (en) 1953-03-13

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