FR2444271A1 - Procede et appareil de controle de la conversion d'ammoniac - Google Patents

Procede et appareil de controle de la conversion d'ammoniac

Info

Publication number
FR2444271A1
FR2444271A1 FR7930459A FR7930459A FR2444271A1 FR 2444271 A1 FR2444271 A1 FR 2444271A1 FR 7930459 A FR7930459 A FR 7930459A FR 7930459 A FR7930459 A FR 7930459A FR 2444271 A1 FR2444271 A1 FR 2444271A1
Authority
FR
France
Prior art keywords
samples
conversion
ammonia
manufacture
sampling point
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.)
Granted
Application number
FR7930459A
Other languages
English (en)
Other versions
FR2444271B1 (fr
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.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey PLC
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 Johnson Matthey PLC filed Critical Johnson Matthey PLC
Publication of FR2444271A1 publication Critical patent/FR2444271A1/fr
Application granted granted Critical
Publication of FR2444271B1 publication Critical patent/FR2444271B1/fr
Granted 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
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/005—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods investigating the presence of an element by oxidation
    • 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
    • Y10T436/17—Nitrogen containing
    • Y10T436/173845—Amine and quaternary ammonium
    • Y10T436/175383—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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/17—Nitrogen containing
    • Y10T436/177692—Oxides of nitrogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)

Abstract

La présente invention a pour objet un procédé et un appareil de contrôle servant notamment à contrôler le rendement de conversion d'ammoniac en oxyde d'azote dans la fabrication d'acide nitrique. Elle est caractérisée en ce que l'appareil comprend : - un dispositif pour prélever des échantillons du mélange réactionnel et du produit de réaction et pour faire passer les échantillons dans des instruments de mesure spectrométrique; - un dispositif pour établir un temps de passage de l'échantillon d'oxyde d'azote entre le point de prise d'échantillon et l'instrument qui soit suffisant pour permettre une conversion de l'oxyde nitrique se trouvant dans l'échantillon en peroxyde d'azote; - un dispositif pour maintenir les échantillons à température et pression élevées pendant le passage entre le point de prise d'échantillon et l'instrument de mesure; et - un dispositif pour effectuer l'analyse photométrique des échantillons. Elle se rapporte à la fabrication d'acide nitrique.
FR7930459A 1978-12-15 1979-12-12 Procede et appareil de controle de la conversion d'ammoniac Granted FR2444271A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7848663 1978-12-15

Publications (2)

Publication Number Publication Date
FR2444271A1 true FR2444271A1 (fr) 1980-07-11
FR2444271B1 FR2444271B1 (fr) 1985-02-22

Family

ID=10501750

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930459A Granted FR2444271A1 (fr) 1978-12-15 1979-12-12 Procede et appareil de controle de la conversion d'ammoniac

Country Status (15)

Country Link
US (1) US4296086A (fr)
JP (1) JPS5593059A (fr)
BE (1) BE880560A (fr)
BR (1) BR7908182A (fr)
CA (1) CA1134645A (fr)
DE (1) DE2950261A1 (fr)
DK (1) DK532779A (fr)
ES (1) ES486879A0 (fr)
FI (1) FI793926A (fr)
FR (1) FR2444271A1 (fr)
IT (1) IT7969416A0 (fr)
NL (1) NL7908928A (fr)
NO (1) NO794026L (fr)
SE (1) SE7910275L (fr)
ZA (1) ZA796569B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395587A2 (fr) * 1989-04-28 1990-10-31 Ciba-Geigy Ag Procédé de commande et d'optimisation de processus industriels de fabrication de colorants

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL66094A0 (en) * 1982-06-22 1982-09-30 Yeda Res & Dev Synthesis with multipolymer systems
US4668909A (en) * 1984-05-04 1987-05-26 The United States Of America As Represented By The Secretary Of The Air Force Piezoelectric material testing method and apparatus
SE8800321D0 (sv) * 1987-08-20 1988-02-02 Scandinavian Emission Tech Metallurgisk styrmetod
GB9215741D0 (en) * 1992-07-24 1992-09-09 British Tech Group Method and apparatus for the measurement of pollutants in liquids
US5426053A (en) * 1993-09-21 1995-06-20 Exxon Research And Engineering Company Optimization of acid strength and total organic carbon in acid processes (C-2644)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974227A (en) * 1958-05-07 1961-03-07 Phillips Petroleum Co Analyzer
US3067014A (en) * 1958-12-01 1962-12-04 Phillips Petroleum Co Control system for nitric acid plant
FR2143900A1 (fr) * 1971-06-29 1973-02-09 Ford France
FR2288309A1 (fr) * 1974-10-17 1976-05-14 Du Pont Procede et appareil perfectionnes pour l'analyse d'oxydes d'azote
JPS53100293A (en) * 1977-02-14 1978-09-01 Mitsubishi Electric Corp Gas densitometer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081153A (en) * 1959-03-13 1963-03-12 Phillips Petroleum Co Automatic optimum air addition to nitric oxide absorption in nitric acid production
US3718429A (en) * 1971-03-15 1973-02-27 Du Pont No-no2 analyzer
US3808327A (en) * 1972-02-03 1974-04-30 E Roberts Method for converting nitric oxide to nitrogen dioxide and recovery thereof
JPS5610582B2 (fr) * 1972-02-04 1981-03-09
US4042333A (en) * 1974-03-06 1977-08-16 E. I. Du Pont De Nemours And Company Apparatus and method for gas analysis

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974227A (en) * 1958-05-07 1961-03-07 Phillips Petroleum Co Analyzer
US3067014A (en) * 1958-12-01 1962-12-04 Phillips Petroleum Co Control system for nitric acid plant
FR2143900A1 (fr) * 1971-06-29 1973-02-09 Ford France
FR2288309A1 (fr) * 1974-10-17 1976-05-14 Du Pont Procede et appareil perfectionnes pour l'analyse d'oxydes d'azote
JPS53100293A (en) * 1977-02-14 1978-09-01 Mitsubishi Electric Corp Gas densitometer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 2, no. 133, 8 novembre 1978, page 8140 E 78 & JP - A - 53 100 293 (MITSUBISHI DENKI K.K.) (9-1-1978) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0395587A2 (fr) * 1989-04-28 1990-10-31 Ciba-Geigy Ag Procédé de commande et d'optimisation de processus industriels de fabrication de colorants
EP0395587A3 (fr) * 1989-04-28 1992-11-25 Ciba-Geigy Ag Procédé de commande et d'optimisation de processus industriels de fabrication de colorants

Also Published As

Publication number Publication date
DK532779A (da) 1980-06-16
FI793926A (fi) 1980-06-16
NO794026L (no) 1980-06-17
BE880560A (fr) 1980-06-11
ES8102054A1 (es) 1980-12-16
US4296086A (en) 1981-10-20
IT7969416A0 (it) 1979-12-17
NL7908928A (nl) 1980-06-17
BR7908182A (pt) 1980-08-26
ZA796569B (en) 1981-09-30
SE7910275L (sv) 1980-06-16
ES486879A0 (es) 1980-12-16
JPS5593059A (en) 1980-07-15
FR2444271B1 (fr) 1985-02-22
CA1134645A (fr) 1982-11-02
DE2950261A1 (de) 1980-06-26

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