GB938137A - Apparatus for oxidizing metal powders - Google Patents

Apparatus for oxidizing metal powders

Info

Publication number
GB938137A
GB938137A GB4266/62A GB426662A GB938137A GB 938137 A GB938137 A GB 938137A GB 4266/62 A GB4266/62 A GB 4266/62A GB 426662 A GB426662 A GB 426662A GB 938137 A GB938137 A GB 938137A
Authority
GB
United Kingdom
Prior art keywords
conduits
bore
metal powder
pict
iii
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
GB4266/62A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB938137A publication Critical patent/GB938137A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/32—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process
    • C01B13/322—Methods for preparing oxides or hydroxides in general by oxidation or hydrolysis of elements or compounds in the liquid or solid state or in non-aqueous solution, e.g. sol-gel process of elements or compounds in the solid state
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/14—Treatment of metallic powder
    • B22F1/145—Chemical treatment, e.g. passivation or decarburisation

Abstract

<PICT:0938137/III/1> <PICT:0938137/III/2> <PICT:0938137/III/3> An apparatus for oxidizing a metal powder in a turbulent flame consists of a central bore through which a gas-borne stream of metal powder is fed to the furnace and a burner assembly surrounding said bore, provided with a plurality of equispaced tubular conduits having inwardly directed nozzles for a fuel/air mixture intersecting the bore axis at 15-40 degrees. The fuel/air mixture is supplied to the conduits through an annular manifold chamber containing a baffle member provided with perforations corresponding with the nozzles but circumferentially staggered in relation thereto, whereby a uniform mixture is supplied to each nozzle. The conduits have a length to diameter ratio of between 9:1 and 12:1 and they may be counter-bored at their nozzle ends. Fig. 1 shows pipe 1 through which pressurized carrier gas is passed to entrain the metal powder introduced into hopper 3. The entrained metal powder passes through the burner enclosed in member 7, the fuel gas and oxygen or air being introduced through tubes 9 and 11. The burner is shown in Figs. 2 and 3 which indicate conduits 13 arranged around bore 23. The fuel gas and oxygen mixture is introduced through tubes 9 and 11, passes through manifold 17 containing baffle 19 and into furnace 5 via the conduits 13. The baffle openings 21 are staggered with respect to the conduit inlets 18. Fig. 2 shows bore 15 flared in the portion adjacent to counterbored conduit nozzles 23. An example refers to the oxidation of an ironchromium alloy.
GB4266/62A 1961-02-17 1962-02-05 Apparatus for oxidizing metal powders Expired GB938137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US90134A US3085865A (en) 1961-02-17 1961-02-17 Apparatus for the oxidation of metal powders

Publications (1)

Publication Number Publication Date
GB938137A true GB938137A (en) 1963-10-02

Family

ID=22221472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4266/62A Expired GB938137A (en) 1961-02-17 1962-02-05 Apparatus for oxidizing metal powders

Country Status (3)

Country Link
US (1) US3085865A (en)
CH (1) CH381650A (en)
GB (1) GB938137A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219071A (en) * 1988-05-28 1989-11-29 Terry Roberts Atmospheric gas burner

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE639087A (en) * 1962-10-23
DE1205499B (en) * 1963-05-24 1965-11-25 Hans J Zimmer Verfahrenstechni Device for carrying out endothermic gas reactions
DE1180723B (en) * 1963-06-28 1964-11-05 Degussa Process and device for the production of finely divided amorphous silica
US3450503A (en) * 1964-11-12 1969-06-17 Goldschmidt Ag Th Apparatus for oxidizing lead
US3512219A (en) * 1965-10-19 1970-05-19 American Potash & Chem Corp Injection reactor for titanium dioxide production
JPS5646853Y2 (en) * 1977-11-15 1981-11-02
US4407450A (en) * 1980-10-30 1983-10-04 Chegolya Alexandr S Method of aerodynamic production of liquid and solid disperse aerosols
US4445444A (en) * 1982-08-12 1984-05-01 Texaco Inc. Burner for combusting oxygen-coal mixture
JPS63199801A (en) * 1987-02-12 1988-08-18 Chisso Corp Stabilization treatment device for ferromagnetic metal powder
US5308366A (en) * 1992-11-09 1994-05-03 Rockwell International Corporation Hot hydrogen production apparatus
US5950547A (en) * 1997-07-21 1999-09-14 Theoretical Thermionics, Inc. Combustor for burning a coal-gas mixture

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US732016A (en) * 1901-08-19 1903-06-23 D C & U Gas Engine Company Explosive-engine governor.
US1536176A (en) * 1921-12-05 1925-05-05 Paul J Kruesi Method of preventing the crusty formation of solidified oxides
US1973712A (en) * 1932-02-02 1934-09-18 Clarence I Justheim Carburetor
US2006891A (en) * 1932-12-01 1935-07-02 Hegmann William Apparatus and method for producing metallic dust
US2353865A (en) * 1940-11-28 1944-07-18 Leslie R Armstrong Gas burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219071A (en) * 1988-05-28 1989-11-29 Terry Roberts Atmospheric gas burner
GB2219071B (en) * 1988-05-28 1992-04-22 Terry Roberts Atmospheric gas burner

Also Published As

Publication number Publication date
CH381650A (en) 1964-09-15
US3085865A (en) 1963-04-16

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