SE7608970L - CONTROL OF CHEMICAL REACTION - Google Patents

CONTROL OF CHEMICAL REACTION

Info

Publication number
SE7608970L
SE7608970L SE7608970A SE7608970A SE7608970L SE 7608970 L SE7608970 L SE 7608970L SE 7608970 A SE7608970 A SE 7608970A SE 7608970 A SE7608970 A SE 7608970A SE 7608970 L SE7608970 L SE 7608970L
Authority
SE
Sweden
Prior art keywords
control
chemical reaction
tetrazotisation
polarovoltaically
diazotisation
Prior art date
Application number
SE7608970A
Other languages
Swedish (sv)
Inventor
A Hamilton
C Nelson
Original Assignee
Ciba Geigy Ag
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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of SE7608970L publication Critical patent/SE7608970L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C245/00—Compounds containing chains of at least two nitrogen atoms with at least one nitrogen-to-nitrogen multiple bond
    • C07C245/20—Diazonium compounds
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

In an automatically controlled continuous process for diazotisation and tetrazotisation of aromatic amines, the metering of the inorganic nitrite to be fed in is adjusted polarovoltaically.
SE7608970A 1975-08-12 1976-08-11 CONTROL OF CHEMICAL REACTION SE7608970L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33614/75A GB1547760A (en) 1975-08-12 1975-08-12 Control of continuos diazotisation of aromatic amines

Publications (1)

Publication Number Publication Date
SE7608970L true SE7608970L (en) 1977-02-13

Family

ID=10355210

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7608970A SE7608970L (en) 1975-08-12 1976-08-11 CONTROL OF CHEMICAL REACTION

Country Status (9)

Country Link
JP (1) JPS5227725A (en)
CA (1) CA1075682A (en)
CH (1) CH623029A5 (en)
DE (1) DE2635778A1 (en)
DK (1) DK363176A (en)
FR (1) FR2320937A1 (en)
GB (1) GB1547760A (en)
IT (1) IT1065121B (en)
SE (1) SE7608970L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2741925A1 (en) * 1977-09-17 1979-03-29 Bayer Ag PROCESS FOR CONTINUOUS INDIRECT DIAZOTATION OF AROMATIC AMINES
EP0003656B1 (en) * 1978-02-14 1981-07-15 Imperial Chemical Industries Plc Process for the diazotisation of amines
DE2825655A1 (en) * 1978-06-12 1979-12-20 Hoechst Ag METHOD OF CONTINUOUS DIAZOTATION OF AMINES
DE3104375A1 (en) * 1981-02-07 1982-08-19 Hoechst Ag, 6000 Frankfurt METHOD FOR CONTROLLING DIAZOTING REACTIONS
US4845638A (en) * 1985-07-15 1989-07-04 Ciba-Geigy Corporation Method of eliminating excess nitrite in diazotisation solutions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL96899C (en) * 1954-08-26

Also Published As

Publication number Publication date
IT1065121B (en) 1985-02-25
DK363176A (en) 1977-02-13
JPS6210222B2 (en) 1987-03-05
DE2635778C2 (en) 1987-08-27
DE2635778A1 (en) 1977-02-24
CH623029A5 (en) 1981-05-15
JPS5227725A (en) 1977-03-02
FR2320937A1 (en) 1977-03-11
CA1075682A (en) 1980-04-15
GB1547760A (en) 1979-06-27
FR2320937B1 (en) 1978-05-05

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