ES2066398T3 - Procedimiento colorimetrico para el control en continuo de impurezas sobre alumina hidratada. - Google Patents

Procedimiento colorimetrico para el control en continuo de impurezas sobre alumina hidratada.

Info

Publication number
ES2066398T3
ES2066398T3 ES91420062T ES91420062T ES2066398T3 ES 2066398 T3 ES2066398 T3 ES 2066398T3 ES 91420062 T ES91420062 T ES 91420062T ES 91420062 T ES91420062 T ES 91420062T ES 2066398 T3 ES2066398 T3 ES 2066398T3
Authority
ES
Spain
Prior art keywords
colour
product
reagent
impurity
impurities
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 - Lifetime
Application number
ES91420062T
Other languages
English (en)
Inventor
Raymond Dablainville
Jean Dufour
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.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Application granted granted Critical
Publication of ES2066398T3 publication Critical patent/ES2066398T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N2021/845—Objects on a conveyor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/11—Automated chemical analysis
    • Y10T436/117497—Automated chemical analysis with a continuously flowing sample or carrier stream
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/12—Condition responsive control
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/15—Inorganic acid or base [e.g., hcl, sulfuric acid, etc. ]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/20—Oxygen containing
    • Y10T436/203332—Hydroxyl containing

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Plasma & Fusion (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

LA INVENCION SE REFIERE AL CONTROL EN CONTINUO DEL TIPO DE IMPUREZA EN UN PRODUCTO QUE PASA A GRANEL Y CON UN ESPESOR IRREGULAR EN UNA CINTA TRANSPORTADORA. LA IMPUREZA CONTROLADA PRODUCE UNA REACCION COLOREADA CON UN REACTIVO ADECUADO. LA INVENCION CONSISTE EN LA COMBINACION DE TRES MEDIOS: NIVELACION DE LA SUPERFICIE SUPERIOR DEL PRODUCTO EN LA CINTA AL MENOS EN UNA DETERMINADA ZONA. DEL REACTIVO DE LA SUPERFICIE DEL PRODUCTO ASI NIVELADO, CON EL FIN DE DESARROLLAR LA COLORACION POR REACCION, CON LA IMPUREZA. EL COLOR OBTENIDO CON AYUDA DEL REACTIVO. LA INVENCION SE APLICA EN PARTICULAR AL CONTROL DEL CONTENIDO RESIDUAL EN SOSA DE TRIHIDRATO DE ALUMINIO OBTENIDO EN EL PROCEDIMIENTO BAYER ANTES DE SU CALCINACION.
ES91420062T 1990-02-26 1991-02-22 Procedimiento colorimetrico para el control en continuo de impurezas sobre alumina hidratada. Expired - Lifetime ES2066398T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9002600A FR2658914B1 (fr) 1990-02-26 1990-02-26 Procede colorimetrique pour le controle en continu d'impuretes sur alumine hydratee.

Publications (1)

Publication Number Publication Date
ES2066398T3 true ES2066398T3 (es) 1995-03-01

Family

ID=9394292

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91420062T Expired - Lifetime ES2066398T3 (es) 1990-02-26 1991-02-22 Procedimiento colorimetrico para el control en continuo de impurezas sobre alumina hidratada.

Country Status (15)

Country Link
US (1) US5149502A (es)
EP (1) EP0445049B1 (es)
JP (1) JPH0679023B2 (es)
CN (1) CN1027467C (es)
AT (1) ATE117082T1 (es)
AU (1) AU636959B2 (es)
BR (1) BR9100740A (es)
CA (1) CA2037124C (es)
DE (1) DE69106550T2 (es)
ES (1) ES2066398T3 (es)
FR (1) FR2658914B1 (es)
HU (1) HU208739B (es)
IE (1) IE66471B1 (es)
OA (1) OA09345A (es)
YU (1) YU47390B (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2666656B2 (ja) * 1992-05-11 1997-10-22 日本電気株式会社 化学分析方法
US5637349A (en) * 1994-01-21 1997-06-10 Kaiser Aluminum & Chemical Corporation Method of reducing dusting tendencies of conveyed particulate material
AUPQ209999A0 (en) * 1999-08-09 1999-09-02 Jeffress, Colin Roy Automated sample analysis system
CN104359764A (zh) * 2014-12-05 2015-02-18 福州大学 一种便于结构持载加固的二次受力加载试验装置及其制作方法
CN105548181B (zh) * 2015-12-10 2018-06-12 河源富马硬质合金股份有限公司 一种对硬质合金生产用的原辅材料杂质元素进行验证检测的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010857A (en) * 1968-04-10 1977-03-08 Republic Steel Corporation Coal conditioning system
US3992109A (en) * 1973-03-15 1976-11-16 Calspan Corporation Cyclic colorimetry method and apparatus
US3856474A (en) * 1974-02-04 1974-12-24 T Pittman Bitumen extraction apparatus including endless perforate conveyor and plural solvent-spray means
US4029197A (en) * 1975-01-17 1977-06-14 Molins Limited Apparatus for handling cigarettes or other rod-like articles
PL114948B1 (en) * 1977-09-17 1981-03-31 Os Bad Rozwojowy Syst Mech System for continuous determination of moisture in fineassortments of minerals
US4279338A (en) * 1979-11-23 1981-07-21 Conoco, Inc. Apparatus for splitting a stream of particulate solids
US4562059A (en) * 1984-06-08 1985-12-31 Chiyoda Chemical Engineering & Construction Co., Ltd. Method of preparing alumina
DD236394A1 (de) * 1985-04-17 1986-06-04 Wtz Holzverarbeitende Ind Vorrichtung zur kontinuierlichen feuchtemessung von partikeln grober struktur
JPH01207649A (ja) * 1988-02-16 1989-08-21 Mitsubishi Heavy Ind Ltd 燃焼灰中の未燃分計測方法

Also Published As

Publication number Publication date
ATE117082T1 (de) 1995-01-15
CA2037124A1 (fr) 1991-08-27
IE66471B1 (en) 1995-12-27
HUT60037A (en) 1992-07-28
IE910618A1 (en) 1991-08-28
JPH04216462A (ja) 1992-08-06
YU47390B (sh) 1995-01-31
EP0445049A3 (en) 1992-11-19
YU32991A (sh) 1993-11-16
CA2037124C (fr) 1993-10-05
EP0445049B1 (fr) 1995-01-11
DE69106550D1 (de) 1995-02-23
HU910622D0 (en) 1991-09-30
CN1055424A (zh) 1991-10-16
US5149502A (en) 1992-09-22
AU7196891A (en) 1991-08-29
DE69106550T2 (de) 1995-05-24
OA09345A (fr) 1992-09-15
BR9100740A (pt) 1991-10-29
EP0445049A2 (fr) 1991-09-04
HU208739B (en) 1993-12-28
AU636959B2 (en) 1993-05-13
CN1027467C (zh) 1995-01-18
FR2658914A1 (fr) 1991-08-30
FR2658914B1 (fr) 1992-04-30
JPH0679023B2 (ja) 1994-10-05

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