GB227491A - Improvements in the production of catalysts for the synthesis of ammonia - Google Patents

Improvements in the production of catalysts for the synthesis of ammonia

Info

Publication number
GB227491A
GB227491A GB23557/23A GB2355723A GB227491A GB 227491 A GB227491 A GB 227491A GB 23557/23 A GB23557/23 A GB 23557/23A GB 2355723 A GB2355723 A GB 2355723A GB 227491 A GB227491 A GB 227491A
Authority
GB
United Kingdom
Prior art keywords
oxides
oxygen
carbon
aluminium
magnesium
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
GB23557/23A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB23557/23A priority Critical patent/GB227491A/en
Priority to FR570967D priority patent/FR570967A/en
Priority to NL25251A priority patent/NL14407C/xx
Publication of GB227491A publication Critical patent/GB227491A/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
    • B01J37/04—Mixing
    • 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
    • B01J37/08—Heat treatment
    • 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
    • B01J37/12—Oxidising
    • B01J37/14—Oxidising with gases containing free oxygen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
    • C01C1/0411—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst characterised by the catalyst
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Catalysts (AREA)

Abstract

Catalysts for the synthesis of ammonia are prepared by heating in a current of oxygen a mixture of artificial or natural iron oxides with substances possessing a high combination heat wth oxygen until the temperature becomes near or equal to that of ebullition. Instead of or in conjunction with oxides of iron may be employed oxides of cobalt, nickel, manganese, chromium, molybdenum, tungsten or uranium, or compounds producing the oxides may be used. Heat-irreducible metal oxides, such as alkaline earth oxides, or metals giving rise thereto may also be present. The substances possessing a high combination heat with oxygen are defined as those substances giving out the same as or a greater number of calories per gram-atom than carbon does under combustion; carbon, magnesium, aluminium and calcium are given as instances, and catalytic poisons are excluded. According to the example, powdered magnetite is mixed with calcined dolomite, carbon and either aluminium, calcium or magnesium, and a current of pure oxygen is projected on to or passed through the heated mass until violent ebullition ceases and the mass on cooling turns pasty; the cooled product is broken up for use. Specification 197,199 is referred to.
GB23557/23A 1923-09-20 1923-09-20 Improvements in the production of catalysts for the synthesis of ammonia Expired GB227491A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB23557/23A GB227491A (en) 1923-09-20 1923-09-20 Improvements in the production of catalysts for the synthesis of ammonia
FR570967D FR570967A (en) 1923-09-20 1923-09-21 Process for the preparation of catalysts for the production of synthetic ammonia
NL25251A NL14407C (en) 1923-09-20 1923-09-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23557/23A GB227491A (en) 1923-09-20 1923-09-20 Improvements in the production of catalysts for the synthesis of ammonia

Publications (1)

Publication Number Publication Date
GB227491A true GB227491A (en) 1925-01-20

Family

ID=10197582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23557/23A Expired GB227491A (en) 1923-09-20 1923-09-20 Improvements in the production of catalysts for the synthesis of ammonia

Country Status (3)

Country Link
FR (1) FR570967A (en)
GB (1) GB227491A (en)
NL (1) NL14407C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488150A (en) * 1946-11-08 1949-11-15 Standard Oil Dev Co Preparation and regeneration of a hydrocarbon synthesis catalyst
US3839229A (en) * 1971-03-17 1974-10-01 Azote & Prod Chim Ammonia-synthesis catalyst
EP0060622A1 (en) * 1981-03-18 1982-09-22 Imperial Chemical Industries Plc Catalyst

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2488150A (en) * 1946-11-08 1949-11-15 Standard Oil Dev Co Preparation and regeneration of a hydrocarbon synthesis catalyst
US3839229A (en) * 1971-03-17 1974-10-01 Azote & Prod Chim Ammonia-synthesis catalyst
EP0060622A1 (en) * 1981-03-18 1982-09-22 Imperial Chemical Industries Plc Catalyst

Also Published As

Publication number Publication date
FR570967A (en) 1924-05-09
NL14407C (en) 1926-03-15

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