DE69115322D1 - Teilchen aus wasserhaltigem, dreiwertigen Chromoxyd und Kohlenstoff - Google Patents

Teilchen aus wasserhaltigem, dreiwertigen Chromoxyd und Kohlenstoff

Info

Publication number
DE69115322D1
DE69115322D1 DE69115322T DE69115322T DE69115322D1 DE 69115322 D1 DE69115322 D1 DE 69115322D1 DE 69115322 T DE69115322 T DE 69115322T DE 69115322 T DE69115322 T DE 69115322T DE 69115322 D1 DE69115322 D1 DE 69115322D1
Authority
DE
Germany
Prior art keywords
particles
carbon
water
chromium oxide
trivalent chromium
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 - Fee Related
Application number
DE69115322T
Other languages
English (en)
Other versions
DE69115322T2 (de
Inventor
Edgel P Stambaugh
Russell J Morgan
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.)
Occidental Chemical Corp
Original Assignee
Occidental Chemical 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 Occidental Chemical Corp filed Critical Occidental Chemical Corp
Publication of DE69115322D1 publication Critical patent/DE69115322D1/de
Application granted granted Critical
Publication of DE69115322T2 publication Critical patent/DE69115322T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium
    • 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
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
    • C01P2002/85—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by XPS, EDX or EDAX data
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/01—Particle morphology depicted by an image
    • C01P2004/03—Particle morphology depicted by an image obtained by SEM
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
DE69115322T 1990-03-02 1991-02-28 Teilchen aus wasserhaltigem, dreiwertigen Chromoxyd und Kohlenstoff Expired - Fee Related DE69115322T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/487,313 US5133947A (en) 1990-03-02 1990-03-02 Hydrous trivalent chromium oxide/carbon particles and method of making the same

Publications (2)

Publication Number Publication Date
DE69115322D1 true DE69115322D1 (de) 1996-01-25
DE69115322T2 DE69115322T2 (de) 1996-05-02

Family

ID=23935235

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69115322T Expired - Fee Related DE69115322T2 (de) 1990-03-02 1991-02-28 Teilchen aus wasserhaltigem, dreiwertigen Chromoxyd und Kohlenstoff

Country Status (7)

Country Link
US (1) US5133947A (de)
EP (1) EP0450307B1 (de)
JP (1) JPH04270123A (de)
BR (1) BR9100848A (de)
DE (1) DE69115322T2 (de)
MX (1) MX173249B (de)
ZA (1) ZA911492B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5296236A (en) * 1988-09-16 1994-03-22 Recordati S.A., Chemical And Pharmaceutical Company Controlled release therapeutic system for a liquid pharmaceutical formulations
US5259866A (en) * 1990-10-23 1993-11-09 Japan Metals & Chemicals Co., Ltd. Method for producing high-purity metallic chromium
CA2510319A1 (en) * 2002-12-20 2004-07-15 Thomas J. Smith High pressure compaction for pharmaceutical formulations
US8273190B2 (en) 2009-05-29 2012-09-25 Bulk Chemicals, Inc. Method for making and using chromium III salts
US8425692B2 (en) 2010-05-27 2013-04-23 Bulk Chemicals, Inc. Process and composition for treating metal surfaces
EP3240770B1 (de) 2014-12-31 2019-02-13 SABIC Global Technologies B.V. Verfahren zur verbesserung der leistung der dehydrierung von alkanen
ES2672993T3 (es) 2015-10-27 2018-06-19 Eupraxia Pharmaceuticals Inc. Formulaciones de liberación sostenida de anestésicos locales
CN115477327A (zh) * 2022-09-23 2022-12-16 绵阳光达环保科技有限责任公司 一种乙醇或甲醇还原铬酸钠生产羟基氧化铬的生产工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833645A (en) * 1955-08-19 1958-05-06 Union Carbide Corp Reduction of chromium oxides
US2850378A (en) * 1956-12-17 1958-09-02 Walter M Weil Production of chromium by low-pressure reduction of oxides
US3090670A (en) * 1959-06-18 1963-05-21 Nat Distillers Chem Corp Zirconium dioxide recovery
US3065095A (en) * 1959-08-26 1962-11-20 Nat Distillers Chem Corp Process for preparing chromium oxide
DE1296291B (de) * 1965-09-01 1969-05-29 Siegle & Co Gmbh Farbenfabrike Verfahren zur Herstellung feinteiliger Eisenoxid-Chromoxid-Mischkristallpigmente
US4033867A (en) * 1974-07-19 1977-07-05 Betz Laboratories, Inc. Chromate reduction in aqueous medium
GB1532601A (en) * 1977-01-17 1978-11-15 Ontario Research Foundation Production of chromium carbide and ferrochrome alloys
US4148628A (en) * 1977-02-18 1979-04-10 Toyo Soda Manufacturing Co., Ltd. Process of producing metallic chromium
US4127643A (en) * 1977-11-03 1978-11-28 Ppg Industries, Inc. Preparation of pigmentary chromic oxide
US4367213A (en) * 1982-04-29 1983-01-04 Olin Corporation Use of selected catalyzed hydrazine compositions to reduce hexavalent chromium [Cr(VI)]

Also Published As

Publication number Publication date
BR9100848A (pt) 1991-11-05
JPH04270123A (ja) 1992-09-25
EP0450307B1 (de) 1995-12-13
MX173249B (es) 1994-02-11
ZA911492B (en) 1991-12-24
US5133947A (en) 1992-07-28
DE69115322T2 (de) 1996-05-02
EP0450307A1 (de) 1991-10-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee