GB1374237A - Catalysts - Google Patents

Catalysts

Info

Publication number
GB1374237A
GB1374237A GB4766870A GB4766870A GB1374237A GB 1374237 A GB1374237 A GB 1374237A GB 4766870 A GB4766870 A GB 4766870A GB 4766870 A GB4766870 A GB 4766870A GB 1374237 A GB1374237 A GB 1374237A
Authority
GB
United Kingdom
Prior art keywords
hydroxyl ions
source
heating
compound
ions
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
GB4766870A
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.)
Unilever PLC
Original Assignee
Unilever PLC
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 Unilever PLC filed Critical Unilever PLC
Priority to GB4766870A priority Critical patent/GB1374237A/en
Publication of GB1374237A publication Critical patent/GB1374237A/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
    • B01J23/74—Iron group metals
    • 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
    • B01J37/20—Sulfiding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

1374237 Hydrogenation catalysts UNI-- LEVER Ltd 5 Jan 1972 [7 Oct 1970] 47668/70 Heading B1E A process for the preparation of a sulphided metallic supported catalyst in which a support material is contacted with an aqueous solution of a salt of the metal, a compound that on heating acts as a source of hydroxyl ions, and a sulphur-providing compound that at the pH provided by the source of hydroxyl ions on heating hydrolyses to yield sulphide ion at a rate at least similar to the rate at which the source of hydroxyl ions provides hydroxyl ions, and the solution and the support material are heated to give the sulphided metallic supported catalyst. By "source of hydroxyl ions" is meant a compound which on heating in aqueous solution gives rise to such ions. In all the examples the starting materials are nickel nitrate, urea and thioacetamide, and the support is macroporous silica having a specific surface of 292 m<SP>2</SP>/g; the catalysts are finally heated at 450‹C in hydrogen.
GB4766870A 1970-10-07 1970-10-07 Catalysts Expired GB1374237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4766870A GB1374237A (en) 1970-10-07 1970-10-07 Catalysts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4766870A GB1374237A (en) 1970-10-07 1970-10-07 Catalysts

Publications (1)

Publication Number Publication Date
GB1374237A true GB1374237A (en) 1974-11-20

Family

ID=10445850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4766870A Expired GB1374237A (en) 1970-10-07 1970-10-07 Catalysts

Country Status (1)

Country Link
GB (1) GB1374237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495306A (en) * 1981-04-08 1985-01-22 The British Petroleum Company Limited Preparation of catalysts by the precipitation of a hydroxide or sulfide from an emulsion in the presence of carbonaceous solid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4495306A (en) * 1981-04-08 1985-01-22 The British Petroleum Company Limited Preparation of catalysts by the precipitation of a hydroxide or sulfide from an emulsion in the presence of carbonaceous solid

Similar Documents

Publication Publication Date Title
IL45447A (en) Beta-diketones and process of recovering copper and nickel from their aqueous solutions by the use thereof
GB1112678A (en) Improved process for aminophenol
GB1069416A (en) Improvements in or relating to the manufacture of catalysts
PT67953A (en) Process for the production of fertilizer pellets containing ammonium nitrate.
GB1414482A (en) Catalysts
GB1391550A (en) Destruction of cyanide waste
ES341620A1 (en) Production of saturated carbonyl compounds
YU35872A (en) Process for the manufacture of an electrode for electrocheemical processes, coated with metals of low solubility
GB1374237A (en) Catalysts
IL35991A0 (en) Process for the production of metallic copper,silver or mercury by precipitation from aqueous solutions of compounds of these
YU160874A (en) Process for obtaining alkali metal or ammonium insulin
GB1419727A (en) Process for the production of lamellar gold powder
GB1179119A (en) Process for the Manufacture of Hydroxylammonium Salts.
GB1126169A (en) Process for the conversion of hydrocarbons
ES408273A1 (en) Process for the preparation of 4-chloro-2,5-dimethoxyaniline
GB1521831A (en) Process for recovering metal compounds
GB1309083A (en) Hydrocarbon dehydrogenation process
YU34360B (en) Process for the manufacture of catalysts consisting of graphite coated with alkali metals
GB1452145A (en) Process for the preparation of catalysts for use in the manufacture of ethylene oxide
GB1528117A (en) Process for the preparation of a hydroxylamine salt and the pretreatment of catalyst compositions used therein
GB1392337A (en) Process for the production of hydroxylamino-and aminoanthra- quinones
GB1309964A (en) Method for purifying aqueous solutions of rhenium
ES452377A1 (en) Process for preparing alpha-amino-gamma-methylmercaptobutyronitrile
ES453775A1 (en) Method of preparing N,N{40 -bis-trimethylsilylurea
GB1369640A (en) Method of activating silver catalysts

Legal Events

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