GB1267020A - - Google Patents

Info

Publication number
GB1267020A
GB1267020A GB1267020DA GB1267020A GB 1267020 A GB1267020 A GB 1267020A GB 1267020D A GB1267020D A GB 1267020DA GB 1267020 A GB1267020 A GB 1267020A
Authority
GB
United Kingdom
Prior art keywords
purification
acid
dec
benzoic acid
heading
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
Other languages
English (en)
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 filed Critical
Publication of GB1267020A publication Critical patent/GB1267020A/en
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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB1267020D 1969-12-08 1970-12-07 Expired GB1267020A (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88327069A 1969-12-08 1969-12-08

Publications (1)

Publication Number Publication Date
GB1267020A true GB1267020A (OSRAM) 1972-03-15

Family

ID=25382292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1267020D Expired GB1267020A (OSRAM) 1969-12-08 1970-12-07

Country Status (6)

Country Link
US (1) US3705193A (OSRAM)
BE (1) BE760038A (OSRAM)
DE (1) DE2059791C3 (OSRAM)
FR (1) FR2072865A5 (OSRAM)
GB (1) GB1267020A (OSRAM)
NL (1) NL169170C (OSRAM)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115100A3 (en) * 1983-01-03 1984-08-22 Stamicarbon B.V. Process for the preparation of pharmaceutical benzoic acid
EP0115101A3 (en) * 1983-01-03 1984-08-29 Stamicarbon B.V. Process for the preparation of benzoic acid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113548960A (zh) * 2021-07-19 2021-10-26 武汉有机实业有限公司 一种食品级苯甲酸的纯化方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309289A (en) * 1961-10-11 1967-03-14 Snia Viscosa Recovery of benzoic acid by distillation in presence of excess water
US3478092A (en) * 1966-04-06 1969-11-11 Velsicol Chemical Corp Method of improving the color and color stability of benzoic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0115100A3 (en) * 1983-01-03 1984-08-22 Stamicarbon B.V. Process for the preparation of pharmaceutical benzoic acid
EP0115101A3 (en) * 1983-01-03 1984-08-29 Stamicarbon B.V. Process for the preparation of benzoic acid

Also Published As

Publication number Publication date
NL169170B (nl) 1982-01-18
NL169170C (nl) 1982-06-16
BE760038A (fr) 1971-05-17
US3705193A (en) 1972-12-05
NL7017539A (OSRAM) 1971-06-10
DE2059791A1 (de) 1971-06-16
DE2059791B2 (de) 1981-05-14
DE2059791C3 (de) 1982-05-19
FR2072865A5 (OSRAM) 1971-09-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years