IT1031370B - Purificn of 11-cyano-undecanoic acid - by contacting crude acid with ozone - Google Patents

Purificn of 11-cyano-undecanoic acid - by contacting crude acid with ozone

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Publication number
IT1031370B
IT1031370B IT1984775A IT1984775A IT1031370B IT 1031370 B IT1031370 B IT 1031370B IT 1984775 A IT1984775 A IT 1984775A IT 1984775 A IT1984775 A IT 1984775A IT 1031370 B IT1031370 B IT 1031370B
Authority
IT
Italy
Prior art keywords
acid
purificn
pref
crude
cyano
Prior art date
Application number
IT1984775A
Other languages
Italian (it)
Original Assignee
Ube Industries
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 Ube Industries filed Critical Ube Industries
Priority to IT1984775A priority Critical patent/IT1031370B/en
Application granted granted Critical
Publication of IT1031370B publication Critical patent/IT1031370B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Crude 11-cyano-undecanoic acid (I), e.g. the crude prod. of thermal cracking of 1, 1'-peroxy-dicyclohexylamine at 300-1000 degrees C, can be purified and decolourised by contacting crude (I) as acid or ammonium salt in an organic solvent not reactive with O3 at 0-100 degrees C, pref. 1-3C aliphatic carboxylic acid or 1-2C halogenated hydrocarbon, with O3, pref. in amt. 0-05-5% by wt. of (I). Pref. the crude (I) is subjected to pref-purificn, e.g. by recrystallisation or contact with active C. Excellent purificn. is obtd. Prod., on hydrogenating, forms 12-NH2-dodecanoic acid which is may be polymerised to Nylon 12.
IT1984775A 1974-02-05 1975-01-31 Purificn of 11-cyano-undecanoic acid - by contacting crude acid with ozone IT1031370B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT1984775A IT1031370B (en) 1974-02-05 1975-01-31 Purificn of 11-cyano-undecanoic acid - by contacting crude acid with ozone

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1410374 1974-02-05
IT1984775A IT1031370B (en) 1974-02-05 1975-01-31 Purificn of 11-cyano-undecanoic acid - by contacting crude acid with ozone

Publications (1)

Publication Number Publication Date
IT1031370B true IT1031370B (en) 1979-04-30

Family

ID=26326702

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1984775A IT1031370B (en) 1974-02-05 1975-01-31 Purificn of 11-cyano-undecanoic acid - by contacting crude acid with ozone

Country Status (1)

Country Link
IT (1) IT1031370B (en)

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