ES8604481A1 - Procedimiento para la purificacion de acido benzoico - Google Patents

Procedimiento para la purificacion de acido benzoico

Info

Publication number
ES8604481A1
ES8604481A1 ES543622A ES543622A ES8604481A1 ES 8604481 A1 ES8604481 A1 ES 8604481A1 ES 543622 A ES543622 A ES 543622A ES 543622 A ES543622 A ES 543622A ES 8604481 A1 ES8604481 A1 ES 8604481A1
Authority
ES
Spain
Prior art keywords
amino
benzoic acid
purification
distn
alkyl
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
Application number
ES543622A
Other languages
English (en)
Other versions
ES543622A0 (es
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of ES543622A0 publication Critical patent/ES543622A0/es
Publication of ES8604481A1 publication Critical patent/ES8604481A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

METODO DE PURIFICACION DE ACIDO BENZOICO, OBTENIDO POR OXIDACION CATALITICA DE TOLUENO CON AIRE EN FASE LIQUIDA. CONSISTE EN LA DESTILACION DEL ACIDO BENZOICO EN BRUTO EN PRESENCIA DE AMINAS ALIFATICAS DE FORMULA HNR1R2, EN LA QUE R1 REPRESENTA HIDROGENO, RADICAL HIDROXIALQUILO O AMINOALQUILO DE 1 A 6 ATOMOS DE CARBONO Y R2 REPRESENTA HIDROXIALQUILO O AMINOALQUILO DE 1 A 6 ATOMOS DE CARBONO, Y DE SUS SALES, EN PROPORCION DE 0,001 A 0,01 MOLES DE AMINA POR MOL DE ACIDO BENZOICO, A UNA TEMPERATURA COMPRENDIDA ENTRE 80JC Y 250JC. TIENE APLICACIONES PARA LA PURIFICACION DEL ACIDO BENZOICO QUE HA DE SER EMPLEADO EN LA FABRICACION DE BENZOATO SODICO.
ES543622A 1984-05-30 1985-05-29 Procedimiento para la purificacion de acido benzoico Expired ES8604481A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843420111 DE3420111A1 (de) 1984-05-30 1984-05-30 Verfahren zur reinigung von benzoesaeure

Publications (2)

Publication Number Publication Date
ES543622A0 ES543622A0 (es) 1986-02-01
ES8604481A1 true ES8604481A1 (es) 1986-02-01

Family

ID=6237177

Family Applications (1)

Application Number Title Priority Date Filing Date
ES543622A Expired ES8604481A1 (es) 1984-05-30 1985-05-29 Procedimiento para la purificacion de acido benzoico

Country Status (6)

Country Link
US (1) US5037512A (es)
EP (1) EP0163212B1 (es)
JP (1) JPH0643367B2 (es)
AT (1) ATE24888T1 (es)
DE (2) DE3420111A1 (es)
ES (1) ES8604481A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824265A1 (de) * 1988-07-16 1990-01-18 Bayer Ag Verfahren zur destillativen gewinnung von o-tolylsaeure
US6494913B1 (en) 1998-03-17 2002-12-17 Acumed, Inc. Shoulder prosthesis
JP2001226323A (ja) * 2000-02-17 2001-08-21 Nippon Steel Chem Co Ltd 安息香酸ベンジルの回収方法
NL1016974C2 (nl) * 2000-12-22 2002-06-25 Dsm Nv BenzoÙzuurdeeltjes.
CN100413842C (zh) * 2005-07-04 2008-08-27 南亚塑胶工业股份有限公司 苯甲酸的纯化方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2283991A (en) * 1939-11-25 1942-05-26 American Cyanamid Co Separation of sulphuric acid from carboxylic acids
US2568095A (en) * 1949-04-29 1951-09-18 Standard Oil Co Recovery of organic acids with an amine solvent
US2865959A (en) * 1955-03-30 1958-12-23 California Research Corp Chlorination of aromatic carboxylic acid esters
GB813888A (en) * 1956-07-12 1959-05-27 Imhausen Werke G M B H Method of producing the chlorides of aromatic mono- or polycarboxylic acids
US3051746A (en) * 1958-04-18 1962-08-28 California Research Corp Aromatic carboxylic acid purification
US3078303A (en) * 1959-03-27 1963-02-19 California Research Corp Purification of aromatic carboxylic acids
US3159673A (en) * 1959-12-03 1964-12-01 Hooker Chemical Corp Separation of 2, 3, 6-trichlorobenzoic acid from a mixture of trichlorobenzoic acids
US3115521A (en) * 1960-04-29 1963-12-24 Standard Oil Co Aromatic acid purification
DE2636489C2 (de) * 1976-08-13 1984-01-12 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Natriumbenzoat
DE3144316A1 (de) * 1981-11-07 1983-05-19 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von benzoylchlorid

Also Published As

Publication number Publication date
ES543622A0 (es) 1986-02-01
DE3560051D1 (en) 1987-02-19
JPH0643367B2 (ja) 1994-06-08
US5037512A (en) 1991-08-06
EP0163212B1 (de) 1987-01-14
DE3420111A1 (de) 1985-12-05
JPS60258142A (ja) 1985-12-20
ATE24888T1 (de) 1987-01-15
EP0163212A1 (de) 1985-12-04

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001