GB371554A - Process of concentrating dilute aliphatic acids - Google Patents

Process of concentrating dilute aliphatic acids

Info

Publication number
GB371554A
GB371554A GB834031A GB834031A GB371554A GB 371554 A GB371554 A GB 371554A GB 834031 A GB834031 A GB 834031A GB 834031 A GB834031 A GB 834031A GB 371554 A GB371554 A GB 371554A
Authority
GB
United Kingdom
Prior art keywords
solvent
acid
aqueous solutions
per cent
extraction
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
GB834031A
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.)
E B Badger & Sons Co
Original Assignee
E B Badger & Sons Co
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 E B Badger & Sons Co filed Critical E B Badger & Sons Co
Priority to GB834031A priority Critical patent/GB371554A/en
Publication of GB371554A publication Critical patent/GB371554A/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
    • C07C51/43—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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Abstract

Acetic, formic, or other aliphatic acid is extracted from its aqueous solutions by means of a solvent consisting of isopropyl ether and another solvent of lower boiling-point than the acid and having a high partition coefficient in respect of both weak and strong aqueous solutions of the acid, such as ethyl acetate ethyl formate, methyl acetate and methyl propionate suitable proportions being 60-80 per cent of isopropyl ether and 40-20 per cent of ester. The extraction may be effected in a long vertical extraction column, the solvent being admitted near the bottom and the dilute acid at the top. The extract is fractionally distilled and the solvent is returned to the extraction apparatus.
GB834031A 1931-03-18 1931-03-18 Process of concentrating dilute aliphatic acids Expired GB371554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB834031A GB371554A (en) 1931-03-18 1931-03-18 Process of concentrating dilute aliphatic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB834031A GB371554A (en) 1931-03-18 1931-03-18 Process of concentrating dilute aliphatic acids

Publications (1)

Publication Number Publication Date
GB371554A true GB371554A (en) 1932-04-28

Family

ID=9850656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB834031A Expired GB371554A (en) 1931-03-18 1931-03-18 Process of concentrating dilute aliphatic acids

Country Status (1)

Country Link
GB (1) GB371554A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001034545A2 (en) * 1999-11-09 2001-05-17 Basf Aktiengesellschaft Method for production of formic acid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001034545A2 (en) * 1999-11-09 2001-05-17 Basf Aktiengesellschaft Method for production of formic acid
WO2001034545A3 (en) * 1999-11-09 2001-10-04 Basf Ag Method for production of formic acid
JP2003513945A (en) * 1999-11-09 2003-04-15 ビーエーエスエフ アクチェンゲゼルシャフト Formulation of formic acid

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