GB477463A - Improvements in process of preparing nitriles - Google Patents

Improvements in process of preparing nitriles

Info

Publication number
GB477463A
GB477463A GB18187/36A GB1818736A GB477463A GB 477463 A GB477463 A GB 477463A GB 18187/36 A GB18187/36 A GB 18187/36A GB 1818736 A GB1818736 A GB 1818736A GB 477463 A GB477463 A GB 477463A
Authority
GB
United Kingdom
Prior art keywords
water
vapour
ammonia
acids
esters
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
GB18187/36A
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.)
Armour and Co
Original Assignee
Armour and 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 Armour and Co filed Critical Armour and Co
Publication of GB477463A publication Critical patent/GB477463A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/22—Preparation of carboxylic acid nitriles by reaction of ammonia with carboxylic acids with replacement of carboxyl groups by cyano groups

Landscapes

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

Abstract

<PICT:0477463/IV/1> Nitriles are made by treating aliphatic acids, having more than 6 carbon atoms in the molecule, or esters thereof, with gaseous ammonia, with or without catalysts, such as alumina at temperatures below the boiling point of the acid and continuously removing the water formed by the reaction. Ammonia passes into the reaction vessel 1 by pipe 5, the excess together with water and fatty acid vapour &c. passing up the air condenser 6 to a heated catalyst 9 in chamber 7, where fatty acid vapour is reacted. Water vapour is condensed in the water-cooled condenser 11 and the brine-cooled condenser 15, and the dried ammonia recirculated. Pressures of 3 to 50 lb. per sq. in., above atmospheric, and temperatures from 250 to 350 DEG C. may be used. Caproic, caprylic, capric, lauric, myristic, palmitic, stearic, oleic, linoleic acids, or mixed acids from, e.g. lard or "garbage grease," or esters, e.g. glycerides, may be treated.
GB18187/36A 1935-12-09 1936-06-30 Improvements in process of preparing nitriles Expired GB477463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US477463XA 1935-12-09 1935-12-09

Publications (1)

Publication Number Publication Date
GB477463A true GB477463A (en) 1937-12-30

Family

ID=21950724

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18187/36A Expired GB477463A (en) 1935-12-09 1936-06-30 Improvements in process of preparing nitriles

Country Status (1)

Country Link
GB (1) GB477463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000916A1 (en) * 1977-08-20 1979-03-07 Hoechst Aktiengesellschaft Process for the production of fatty acid nitriles and glycerine from glycerides, in particular from natural fats and/or oils

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000916A1 (en) * 1977-08-20 1979-03-07 Hoechst Aktiengesellschaft Process for the production of fatty acid nitriles and glycerine from glycerides, in particular from natural fats and/or oils

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