GB473696A - Improvements in and relating to the production of protective gases suitable for use in metal heat treatment furnaces - Google Patents

Improvements in and relating to the production of protective gases suitable for use in metal heat treatment furnaces

Info

Publication number
GB473696A
GB473696A GB8171/36A GB817136A GB473696A GB 473696 A GB473696 A GB 473696A GB 8171/36 A GB8171/36 A GB 8171/36A GB 817136 A GB817136 A GB 817136A GB 473696 A GB473696 A GB 473696A
Authority
GB
United Kingdom
Prior art keywords
gases
ammonia
copper
combustion
oxygen
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
GB8171/36A
Other languages
English (en)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 to NL48782D priority Critical patent/NL48782C/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB8172/36A priority patent/GB473697A/en
Priority to GB8171/36A priority patent/GB473696A/en
Publication of GB473696A publication Critical patent/GB473696A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/02—Preparation of nitrogen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
    • C01B3/047—Decomposition of ammonia
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
    • C21D1/76—Adjusting the composition of the atmosphere
    • C21D1/763—Adjusting the composition of the atmosphere using a 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Gas Burners (AREA)
GB8171/36A 1936-03-18 1936-03-18 Improvements in and relating to the production of protective gases suitable for use in metal heat treatment furnaces Expired GB473696A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL48782D NL48782C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1936-03-18
GB8172/36A GB473697A (en) 1936-03-18 1936-03-18 Improvements in and relating to the production of non-oxidising gaseous mixtures
GB8171/36A GB473696A (en) 1936-03-18 1936-03-18 Improvements in and relating to the production of protective gases suitable for use in metal heat treatment furnaces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8171/36A GB473696A (en) 1936-03-18 1936-03-18 Improvements in and relating to the production of protective gases suitable for use in metal heat treatment furnaces

Publications (1)

Publication Number Publication Date
GB473696A true GB473696A (en) 1937-10-18

Family

ID=9847167

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8171/36A Expired GB473696A (en) 1936-03-18 1936-03-18 Improvements in and relating to the production of protective gases suitable for use in metal heat treatment furnaces
GB8172/36A Expired GB473697A (en) 1936-03-18 1936-03-18 Improvements in and relating to the production of non-oxidising gaseous mixtures

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB8172/36A Expired GB473697A (en) 1936-03-18 1936-03-18 Improvements in and relating to the production of non-oxidising gaseous mixtures

Country Status (2)

Country Link
GB (2) GB473696A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL48782C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069071A (en) * 1975-04-11 1978-01-17 Societe Chimique De La Grande Paroisse, Azote Et Produits Chimiques Method for generating a reducing atmosphere for heat-treating installations
CN103588279A (zh) * 2013-10-15 2014-02-19 常州思宇环保材料科技有限公司 一种高浓度氨氮废水的处理装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4071322A (en) 1974-05-16 1978-01-31 Smit Nijmegen B.V. Apparatus for producing an inert gas
SE406425B (sv) * 1974-05-17 1979-02-12 Smit Nijmegen Bv Forfarande och anordnin for att framstella inertgas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069071A (en) * 1975-04-11 1978-01-17 Societe Chimique De La Grande Paroisse, Azote Et Produits Chimiques Method for generating a reducing atmosphere for heat-treating installations
CN103588279A (zh) * 2013-10-15 2014-02-19 常州思宇环保材料科技有限公司 一种高浓度氨氮废水的处理装置

Also Published As

Publication number Publication date
NL48782C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB473697A (en) 1937-10-18

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