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FR2421868A1 - Procede de purification de p-aminophenol brut - Google Patents

Procede de purification de p-aminophenol brut

Info

Publication number
FR2421868A1
FR2421868A1 FR7809759A FR7809759A FR2421868A1 FR 2421868 A1 FR2421868 A1 FR 2421868A1 FR 7809759 A FR7809759 A FR 7809759A FR 7809759 A FR7809759 A FR 7809759A FR 2421868 A1 FR2421868 A1 FR 2421868A1
Authority
FR
France
Prior art keywords
crude
aminophenol
alkali metal
purification process
aqueous solution
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.)
Withdrawn
Application number
FR7809759A
Other languages
English (en)
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of FR2421868A1 publication Critical patent/FR2421868A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/90—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having two or more relevant hetero rings, condensed among themselves or with a common carbocyclic ring system
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C215/00—Compounds containing amino and hydroxy groups bound to the same carbon skeleton
    • C07C215/74—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton
    • C07C215/76—Compounds containing amino and hydroxy groups bound to the same carbon skeleton having hydroxy groups and amino groups bound to carbon atoms of six-membered aromatic rings of the same carbon skeleton of the same non-condensed six-membered aromatic ring

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Dentistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Plant Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Agronomy & Crop Science (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé de purification de p-amino-phénol brut qui contient l'éther 4,4'-diaminodiphénylique et autres impuretés. Ce procédé consiste à ajouter un composé de métal alcalin au p-aminophénpl brut, dans un milieu aqueux sous une atmosphère de gaz inerte et, éventuellement, en présence d'un agent réducteur pour obtenir une solution aqueuse d'un sel de métal alcalin de p-aminophénol, et à mettre en contact la solution aqueuse avec un solvant organique inerte non miscible à l'eau pour éliminer les impuretés par extraction dans le solvant.
FR7809759A 1978-03-13 1978-04-03 Procede de purification de p-aminophenol brut Withdrawn FR2421868A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/886,129 US4139562A (en) 1978-03-13 1978-03-13 Process for purifying crude p-aminophenol

Publications (1)

Publication Number Publication Date
FR2421868A1 true FR2421868A1 (fr) 1979-11-02

Family

ID=25388435

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809759A Withdrawn FR2421868A1 (fr) 1978-03-13 1978-04-03 Procede de purification de p-aminophenol brut

Country Status (5)

Country Link
US (1) US4139562A (fr)
AU (1) AU517006B2 (fr)
DE (1) DE2814478A1 (fr)
FR (1) FR2421868A1 (fr)
GB (1) GB1585018A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440940A1 (fr) * 1978-11-08 1980-06-06 Mallinckrodt Inc Procede de recuperation du para-aminophenol

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440954A (en) * 1980-06-05 1984-04-03 Mallinckrodt, Inc. Process for the purification of p-aminophenol
IN161689B (fr) * 1984-06-18 1988-01-16 Sumitomo Chemical Co
DE3565979D1 (en) * 1985-11-01 1988-12-08 Mallinckrodt Inc Improved process for the preparation of n-acetyl-p-aminophenol
IN171026B (fr) * 1987-04-09 1992-07-04 Sumitomo Chemical Co
US4967004A (en) * 1987-04-09 1990-10-30 Sumitomo Chemical Company, Limited Process for producing N,N-diethylaminophenols
US4870209A (en) * 1987-04-29 1989-09-26 Noramco, Inc. Process for purifying crude 4-aminophenol
US5196585A (en) * 1990-10-02 1993-03-23 Dowelanco Process for treating dinitroanilines with sulfite to reduce impurities and to reduce the ability to produce nitrosamines

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559896A (en) * 1947-08-22 1951-07-10 Eastman Kodak Co Process for purifying n-methyl-p-aminophenol
FR2066043A5 (fr) * 1969-10-16 1971-08-06 Hall & Co Howard
FR2076983A5 (fr) * 1970-01-28 1971-10-15 Macfarlan Smith Ltd
FR2336379A1 (fr) * 1975-12-22 1977-07-22 Graesser Salicylates Ltd Procede de purification du p-aminophenol brut
JPS532433A (en) * 1976-06-29 1978-01-11 Mitsui Toatsu Chem Inc Hydrolysis of #-phenylenediamine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446519A (en) * 1944-07-29 1948-08-10 Eastman Kodak Co Process for preparing aminophenols
US2464194A (en) * 1945-05-05 1949-03-08 Gen Aniline & Film Corp Reduction of nitrophenols
US3177256A (en) * 1962-06-01 1965-04-06 Martin Marietta Corp Method of preparing para-aminophenol
US3301904A (en) * 1963-10-11 1967-01-31 Sherwin Williams Co Purification of meta nitro para toluidine
FR1564882A (fr) * 1968-03-13 1969-04-25 Rhone Poulenc Sa Procede de purification du para-aminophenol
BE757390A (fr) * 1969-10-16 1971-04-13 Howard Hall & Cy Purification de p-aminophénol
BE758463A (fr) * 1969-11-04 1971-05-04 Howard Hall & Cy Purification du p-aminophénol

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559896A (en) * 1947-08-22 1951-07-10 Eastman Kodak Co Process for purifying n-methyl-p-aminophenol
FR2066043A5 (fr) * 1969-10-16 1971-08-06 Hall & Co Howard
FR2076983A5 (fr) * 1970-01-28 1971-10-15 Macfarlan Smith Ltd
FR2336379A1 (fr) * 1975-12-22 1977-07-22 Graesser Salicylates Ltd Procede de purification du p-aminophenol brut
JPS532433A (en) * 1976-06-29 1978-01-11 Mitsui Toatsu Chem Inc Hydrolysis of #-phenylenediamine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CA1978 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440940A1 (fr) * 1978-11-08 1980-06-06 Mallinckrodt Inc Procede de recuperation du para-aminophenol

Also Published As

Publication number Publication date
AU517006B2 (en) 1981-07-02
US4139562A (en) 1979-02-13
GB1585018A (en) 1981-02-18
AU3415178A (en) 1979-09-20
DE2814478A1 (de) 1979-10-18

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Legal Events

Date Code Title Description
ST Notification of lapse