MX9801927A - Metodo para producir un carburo de metal de transicion a partir de un compuesto de metal de transicion parcialmente reducido. - Google Patents

Metodo para producir un carburo de metal de transicion a partir de un compuesto de metal de transicion parcialmente reducido.

Info

Publication number
MX9801927A
MX9801927A MX9801927A MX9801927A MX9801927A MX 9801927 A MX9801927 A MX 9801927A MX 9801927 A MX9801927 A MX 9801927A MX 9801927 A MX9801927 A MX 9801927A MX 9801927 A MX9801927 A MX 9801927A
Authority
MX
Mexico
Prior art keywords
transition metal
admixture
metal carbide
carbide
precursor mixture
Prior art date
Application number
MX9801927A
Other languages
English (en)
Other versions
MXPA98001927A (es
Inventor
Steven D Dunmead
Kevin J Nilsen
Gabrielle R Lasher
Joseph F Repman
Hobart A Barker
Alan W Weimer
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of MX9801927A publication Critical patent/MX9801927A/es
Publication of MXPA98001927A publication Critical patent/MXPA98001927A/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C01B32/949—Tungsten or molybdenum carbides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/90—Carbides
    • C01B32/914—Carbides of single elements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/11—Powder tap density
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Abstract

Un carburo de metal de transicion se forma a partir de una mezcla de precursor que comprende por lo menos uno del grupo que consiste de un metal de transicion, un carburo de metal de transicion y un oxido de metal de transicion. La mezcla de precursor puede contener el carburo de metal de transicion deseado (por ejemplo, WC), pero si el carburo de metal de transicion deseado está presente en la mezcla de precursor, existe necesariamente una cantidad significativa de otro compuesto, tal como un oxido de metal de transicion un carburo deseable (por ejemplo W2O) o un metal de transicion. El método implica formar una mezcla combinando la mezcla de precursor con una cantidad suficiente de carbono para carburar la mezcla de precursor al carburo de metal de transicion y hacer reaccionar la mezcla en una atmosfera inerte o atmosfera de reduccion a una temperatura ay durante un tiempo suficiente para convertir la mezcla al carburo de metal de transicion, en donde la mezcla se hace reaccionar en presencia de medios para mejorar la transferencia de calor hacia la mezcla, un gas inerte o de reduccion fluyendo a través de por lo menos una porcion de la mezcla o una combinacion de los mismos.
MXPA/A/1998/001927A 1995-09-12 1998-03-11 Metodo para producir un carburo de metal de transicion a partir de un compuesto de metal de transicion parcialmente reducido MXPA98001927A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US363195P 1995-09-12 1995-09-12
US003631 1995-09-12
PCT/US1996/014521 WO1997010176A1 (en) 1995-09-12 1996-09-10 Method to produce a transition metal carbide from a partially reduced transition metal compound

Publications (2)

Publication Number Publication Date
MX9801927A true MX9801927A (es) 1998-08-30
MXPA98001927A MXPA98001927A (es) 1998-11-12

Family

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Also Published As

Publication number Publication date
CA2231529C (en) 2004-04-20
JPH11512382A (ja) 1999-10-26
KR19990044583A (ko) 1999-06-25
HK1015756A1 (en) 1999-10-22
EP0850195A1 (en) 1998-07-01
CN1196032A (zh) 1998-10-14
US6495115B1 (en) 2002-12-17
KR100430701B1 (ko) 2004-07-15
CN1069604C (zh) 2001-08-15
DE69608809T2 (de) 2001-02-01
CA2231529A1 (en) 1997-03-20
DE69608809D1 (de) 2000-07-13
JP3681398B2 (ja) 2005-08-10
EP0850195B1 (en) 2000-06-07
WO1997010176A1 (en) 1997-03-20

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Legal Events

Date Code Title Description
FG Grant or registration
PD Change of proprietorship

Owner name: OMG AMERICAS, INC.

MM Annulment or lapse due to non-payment of fees