MX9400013A - Procedimiento para producir atmosferas de horno mediante la desoxigenacion de nitrogeno no criogenicamente generado con amonia disociada. - Google Patents

Procedimiento para producir atmosferas de horno mediante la desoxigenacion de nitrogeno no criogenicamente generado con amonia disociada.

Info

Publication number
MX9400013A
MX9400013A MX9400013A MX9400013A MX9400013A MX 9400013 A MX9400013 A MX 9400013A MX 9400013 A MX9400013 A MX 9400013A MX 9400013 A MX9400013 A MX 9400013A MX 9400013 A MX9400013 A MX 9400013A
Authority
MX
Mexico
Prior art keywords
metals
ferrous
residual oxygen
dissociated ammonia
procedure
Prior art date
Application number
MX9400013A
Other languages
English (en)
Inventor
Brian Bernard Bonner
Diwakar Garg
Paul Titus Kilhefner Iii
Donald Paul Eichelberger
Original Assignee
Air Prod & Chem
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 Air Prod & Chem filed Critical Air Prod & Chem
Publication of MX9400013A publication Critical patent/MX9400013A/es

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J1/00—Production of fuel gases by carburetting air or other gases without pyrolysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10—Sintering only
    • B22F3/1003—Use of special medium during sintering, e.g. sintering aid
    • B22F3/1007—Atmosphere
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
    • B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen
    • 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
    • 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

Abstract

Un procedimiento para la producción de atmósferas de horno de bajo costo, adecuado para el templado y el tratamiento por calor de metales y aleaciones ferrosas y no ferrosas, para soldar metales y cerámicas, para sellar vidrio con metales, y para sintetizar metal no ferroso y polvos de cerámica a partir de nitrógeno no criogénicamente producido que contiene de 0.05 al 5.0 por ciento de oxígeno residual. El procedimiento descrito involucra: 1) mezclar nitrógeno no criogénicamente producido con una cantidad previamente determinada de amonia disociada, 2) pasar la mezcla a través de un reactor catalítico de baja caída de presión, 3) convertir el oxígeno residual en una forma aceptable tal como humedad, y reducir el nivel de oxígeno residual hasta debajo de aproximadamente 10ppm, y 4) utilizar la mezcla gaseosa resultante para templar y tratar por calor metales y aleaciones ferrosas y no ferrosas, para soldar metales y cerámicas, para sellar vidrio con metales, y para sintetizar metal no ferroso y polvos de cerámica. La característica clave del procedimiento descrito involucra el uso de un reactor catalítico de baja caída de presión novedoso para convertir el oxígeno residual con amonia disociada, en humedad.
MX9400013A 1992-12-22 1994-01-03 Procedimiento para producir atmosferas de horno mediante la desoxigenacion de nitrogeno no criogenicamente generado con amonia disociada. MX9400013A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/995,618 US5290480A (en) 1992-12-22 1992-12-22 Process for producing furnace atmospheres by deoxygenating non-cryogenically generated nitrogen with dissociated ammonia

Publications (1)

Publication Number Publication Date
MX9400013A true MX9400013A (es) 1994-06-30

Family

ID=25542016

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9400013A MX9400013A (es) 1992-12-22 1994-01-03 Procedimiento para producir atmosferas de horno mediante la desoxigenacion de nitrogeno no criogenicamente generado con amonia disociada.

Country Status (6)

Country Link
US (1) US5290480A (es)
KR (1) KR960013608B1 (es)
CA (1) CA2111627C (es)
MX (1) MX9400013A (es)
MY (1) MY108986A (es)
ZA (1) ZA939531B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6531105B1 (en) 1996-02-29 2003-03-11 L'air Liquide-Societe Anonyme A'directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process and apparatus for removing carbon monoxide from a gas stream
NZ314334A (en) * 1996-04-19 1997-09-22 Boc Group Inc Method of heat treating a metal with nitrogen rich gas preheated and then having oxygen-reactive gas added
US10269714B2 (en) * 2016-09-06 2019-04-23 International Business Machines Corporation Low resistance contacts including intermetallic alloy of nickel, platinum, titanium, aluminum and type IV semiconductor elements

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606875A (en) * 1949-03-29 1952-08-12 Baker & Co Inc Controlled atmosphere
US2601221A (en) * 1949-03-29 1952-06-17 Baker & Co Inc Dissociation of ammonia
US3379507A (en) * 1964-04-01 1968-04-23 Varian Associates Ammonia vaporizer and dissociator system
US3598538A (en) * 1968-09-05 1971-08-10 Sylvania Electric Prod Directly heated gas dissociator
GB1471880A (en) * 1973-10-26 1977-04-27 Air Prod & Chem Furnace atmosphere for the heat treatment of ferrous metal
FR2639251A1 (fr) * 1988-11-24 1990-05-25 Air Liquide Procede d'elaboration d'une atmosphere de traitement thermique par separation d'air par adsorption et sechage
FR2639250B1 (es) * 1988-11-24 1990-12-28 Air Liquide
FR2639249A1 (fr) * 1988-11-24 1990-05-25 Air Liquide Procede d'elaboration d'une atmosphere de traitement thermique par separation d'air par permeation et sechage
FR2639252B1 (es) * 1988-11-24 1990-12-28 Air Liquide
GB8914366D0 (en) * 1989-06-22 1989-08-09 Boc Group Plc Heat treatment of metals

Also Published As

Publication number Publication date
ZA939531B (en) 1995-06-20
CA2111627A1 (en) 1994-06-23
KR960013608B1 (ko) 1996-10-09
CA2111627C (en) 1998-01-20
KR940014745A (ko) 1994-07-19
MY108986A (en) 1996-11-30
US5290480A (en) 1994-03-01

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Legal Events

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