KR870001272A - 디아조화 용액중 과량의 아질산염 제거방법 - Google Patents

디아조화 용액중 과량의 아질산염 제거방법 Download PDF

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Publication number
KR870001272A
KR870001272A KR1019860005676A KR860005676A KR870001272A KR 870001272 A KR870001272 A KR 870001272A KR 1019860005676 A KR1019860005676 A KR 1019860005676A KR 860005676 A KR860005676 A KR 860005676A KR 870001272 A KR870001272 A KR 870001272A
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KR
South Korea
Prior art keywords
excess nitrite
adjustment
sulfamic acid
remove excess
nitrite
Prior art date
Application number
KR1019860005676A
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English (en)
Inventor
라코치 헤렝
회르취 브루노
Original Assignee
아놀드 자일러, 에른스트 알테르
시바-가이기 에이지
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 아놀드 자일러, 에른스트 알테르, 시바-가이기 에이지 filed Critical 아놀드 자일러, 에른스트 알테르
Publication of KR870001272A publication Critical patent/KR870001272A/ko

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0096—Purification; Precipitation; Filtration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/4166—Systems measuring a particular property of an electrolyte

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Electrochemistry (AREA)
  • Pathology (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

내용 없음.

Description

디아조화 용액중 과량의 아질산염 제거방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 디아조화 용액중 과량의 아질산염 연속식 제거장치

Claims (6)

  1. 전기화학적 조절 변수(variable)에 의해 아질산염 이온 제거용 시약의 첨가를 조절함을 특징으로 하는 방향족 아민 디아조화 용액중 과량의 아질산 염의 자동조절 연속식 제거방법.
  2. 제1항에 있어서, 조절용으로 사용하는 조절변수가 전위차계, 전압계 또는 폴라그라피 방법으로 측정한 값인 방법.
  3. 제2항에 있어서, 전위차계 방법으로 조절을 수행하고, 디아조화의 산화환원 전위를 조절 변수로서 사용하는 방법.
  4. 제1항 내지 제3항중 어느 하나에 있어서, 과량의 아질산염을 설팜산, 우레아 또는 4-니트로아닐린으로 제거하는 방법.
  5. 제4항에 있어서, 과량의 아질산 염을 설팜산으로 제거하는 방법.
  6. 제4항에 있어서, 설팜산을 일정한 첨가속도로 단속적으로 가하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019860005676A 1985-07-15 1986-07-14 디아조화 용액중 과량의 아질산염 제거방법 KR870001272A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3052/85-8 1985-07-15
CH305285 1985-07-15

Publications (1)

Publication Number Publication Date
KR870001272A true KR870001272A (ko) 1987-03-12

Family

ID=4247532

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019860005676A KR870001272A (ko) 1985-07-15 1986-07-14 디아조화 용액중 과량의 아질산염 제거방법

Country Status (6)

Country Link
US (1) US4845638A (ko)
EP (1) EP0209492A3 (ko)
JP (1) JPS6215261A (ko)
KR (1) KR870001272A (ko)
BR (1) BR8603339A (ko)
ES (1) ES2000664A6 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918168A (en) * 1987-11-24 1990-04-17 Mallinckrodt Inc. Process for the continuous diazotization of amines in a multi-stage reactor
DK374889D0 (da) * 1989-07-28 1989-07-28 Koege Kemisk Vaerk Fremgangsmaade til procesovervaagning
DE4405469C2 (de) * 1994-02-21 1996-11-07 Ciba Geigy Ag Verfahren zur Herstellung von Azofarbstoffen
NL2018826B1 (en) 2017-05-02 2018-11-09 Spgprints B V One-pot synthesis of reactive deep black

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800288A (en) * 1972-02-24 1974-03-26 Foxboro Co Computer-directed process control system with crt display
US4159264A (en) * 1975-08-09 1979-06-26 Ciba-Geigy Corporation Automatic control of azo coupling processes in the manufacture of azo pigments
GB1547760A (en) * 1975-08-12 1979-06-27 Ciba Geigy Ag Control of continuos diazotisation of aromatic amines
DE2741925A1 (de) * 1977-09-17 1979-03-29 Bayer Ag Verfahren zur kontinuierlichen indirekten diazotierung von aromatischen aminen
US4246171A (en) * 1978-09-07 1981-01-20 Ciba-Geigy Corporation Continuous diazotization process, wherein the rate of addition of inorganic nitrite is automatically controlled by polarovoltric means
DE2843873A1 (de) * 1978-10-07 1980-04-17 Basf Ag Azoverbindungen
DE2903588A1 (de) * 1979-01-31 1980-08-14 Basf Ag Polyazofarbstoffe
DD144118A1 (de) * 1979-06-05 1980-09-24 Kallweit Hans Juergen Verfahren und vorrichtung zur bestimmung von nitrit sowie nitrosen gasen
US4294755A (en) * 1979-10-10 1981-10-13 Basf Aktiengesellschaft Pigments containing pyrazolo quinazolone radicals
US4387422A (en) * 1980-06-03 1983-06-07 Steutermann Edward M Control system process controller
EP0071988B1 (en) * 1981-08-05 1988-05-11 Sumitomo Rubber Industries Limited Apparatus for automatically measuring and controlling chemical reaction amount
US4633413A (en) * 1983-07-28 1986-12-30 Cavro Scientific Instruments Digital dilution apparatus and method
US4737240A (en) * 1985-05-02 1988-04-12 Ciba-Geigy Corporation Trisazo black dyes from 2-(4'-aminophenylazo)-7-amino-1-naphthol-3-sulfonic acid

Also Published As

Publication number Publication date
ES2000664A6 (es) 1988-03-16
EP0209492A2 (de) 1987-01-21
EP0209492A3 (de) 1989-11-02
JPS6215261A (ja) 1987-01-23
BR8603339A (pt) 1987-02-24
US4845638A (en) 1989-07-04

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