ES2058270T3 - Procedimiento para purificar 4-aminofenol impuro. - Google Patents

Procedimiento para purificar 4-aminofenol impuro.

Info

Publication number
ES2058270T3
ES2058270T3 ES88303826T ES88303826T ES2058270T3 ES 2058270 T3 ES2058270 T3 ES 2058270T3 ES 88303826 T ES88303826 T ES 88303826T ES 88303826 T ES88303826 T ES 88303826T ES 2058270 T3 ES2058270 T3 ES 2058270T3
Authority
ES
Spain
Prior art keywords
aminophenol
procedure
degrees
separate
purify impure
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
ES88303826T
Other languages
English (en)
Inventor
James Tzu Fen Kao
Dwight Everette Ii Raff
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.)
Noramco LLC
Original Assignee
Noramco LLC
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 Noramco LLC filed Critical Noramco LLC
Application granted granted Critical
Publication of ES2058270T3 publication Critical patent/ES2058270T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCESO PARA PURIFICACION DE 4-AMINOFENOL (4-AP) BRUTO, OBTENIDO POR HIDROGENACION CATALITICA DE NITROBENCENO EN ACIDO SULFURICO ACUOSO QUE COMPRENDE LAS ETAPAS DE: 1) MEZCLAR A 75-85 GRADOS C UNA SOLUCION ACUOSA DE 4-AP BRUTO CON TOLUENO A UN PH DE 4,0 A 5,0; 2) SEPARAR LA CAPA REFINADA Y REGULAR EL PH A 6,5-8,0 (PREFERIBLEMENTE A 7,0-7,4); 3) ENFRIAR LA MEZCLA POR DEBAJO DE 10 GRADOS C (PREFERIBLEMENTE POR DEBAJO DE 0 GRADOS C; Y 4) SEPARAR EL 4-AP PRECIPITADO Y PURIFICADO.
ES88303826T 1987-04-29 1988-04-28 Procedimiento para purificar 4-aminofenol impuro. Expired - Lifetime ES2058270T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/043,787 US4870209A (en) 1987-04-29 1987-04-29 Process for purifying crude 4-aminophenol

Publications (1)

Publication Number Publication Date
ES2058270T3 true ES2058270T3 (es) 1994-11-01

Family

ID=21928889

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88303826T Expired - Lifetime ES2058270T3 (es) 1987-04-29 1988-04-28 Procedimiento para purificar 4-aminofenol impuro.

Country Status (10)

Country Link
US (1) US4870209A (es)
EP (1) EP0289298B1 (es)
JP (1) JP2618433B2 (es)
CN (1) CN1021818C (es)
AT (1) ATE92035T1 (es)
AU (1) AU611429B2 (es)
CA (1) CA1309109C (es)
DE (1) DE3882577T2 (es)
ES (1) ES2058270T3 (es)
GR (1) GR1000214B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5155269A (en) * 1984-01-30 1992-10-13 Mallinckrodt Purification of p-aminophenol compositions and direct conversion to N-acetyl-p-aminophenol
FR2760446B1 (fr) * 1997-03-07 1999-05-14 Rhodia Chimie Sa Procede de decoloration d'effluents aqueux comprenant des amines aromatiques
CN101216468B (zh) * 2008-01-11 2012-04-18 上海化学试剂研究所 2-甲氧甲基-4-氨基苯酚及其杂质的高效液相色谱分析方法
EP2612847B1 (en) * 2010-09-01 2018-04-18 Nippon Soda Co., Ltd. Recording material using phenol compound

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE757390A (fr) * 1969-10-16 1971-04-13 Howard Hall & Cy Purification de p-aminophénol
BE757391A (fr) * 1969-10-16 1971-04-13 Howard Hall & Cy Purification de p-aminophenol
BE758463A (fr) * 1969-11-04 1971-05-04 Howard Hall & Cy Purification du p-aminophénol
GB1291642A (en) * 1970-01-28 1972-10-04 Macfarlan Smith Ltd PURIFICATION OF p-AMINOPHENOL
GB1553389A (en) * 1976-12-17 1979-09-26 Graesser Salicylates Ltd Purification of aminophenols
US4139562A (en) * 1978-03-13 1979-02-13 Mitsui Toatsu Chemicals, Inc. Process for purifying crude p-aminophenol
US4440954A (en) * 1980-06-05 1984-04-03 Mallinckrodt, Inc. Process for the purification of p-aminophenol
JPH06156158A (ja) * 1992-11-30 1994-06-03 Honda Motor Co Ltd 自動車用サイドプロテクター

Also Published As

Publication number Publication date
DE3882577D1 (de) 1993-09-02
CN1021818C (zh) 1993-08-18
JP2618433B2 (ja) 1997-06-11
GR1000214B (el) 1992-04-17
EP0289298A3 (en) 1989-10-11
DE3882577T2 (de) 1993-11-18
ATE92035T1 (de) 1993-08-15
CA1309109C (en) 1992-10-20
GR880100282A (en) 1989-01-31
EP0289298A2 (en) 1988-11-02
US4870209A (en) 1989-09-26
AU611429B2 (en) 1991-06-13
CN88102680A (zh) 1988-11-23
JPS63280047A (ja) 1988-11-17
AU1528588A (en) 1988-11-03
EP0289298B1 (en) 1993-07-28

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