GB895681A - Improvements in the preparation of glycolonitrile - Google Patents

Improvements in the preparation of glycolonitrile

Info

Publication number
GB895681A
GB895681A GB215759A GB215759A GB895681A GB 895681 A GB895681 A GB 895681A GB 215759 A GB215759 A GB 215759A GB 215759 A GB215759 A GB 215759A GB 895681 A GB895681 A GB 895681A
Authority
GB
United Kingdom
Prior art keywords
glycolonitrile
reaction
liquid phase
reaction medium
liquid
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
GB215759A
Inventor
Arthur Ross Sexton
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.)
Dow Chemical Co
Original Assignee
Dow Chemical 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 Dow Chemical Co filed Critical Dow Chemical Co
Priority to GB215759A priority Critical patent/GB895681A/en
Publication of GB895681A publication Critical patent/GB895681A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles

Landscapes

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

Abstract

Glycolonitrile is prepared by establishing a liquid reaction medium containing liquid hydrogen cyanide, maintaining said reaction medium in the liquid phase and progressively adding a formaldehyde-yielding material at a rate such that most of it is substantially immediately reacted with the cyanide present to form glycolonitrile. Aqueous or non-aqueous systems may be used and the liquid phase may be maintained by using appropriate conditions of temperature, pressure and reflux, reaction temperatures of 0 DEG C. to 100 DEG C. being mentioned. The process may be operated continuously or batchwise. Alkaline or acid catalysts may be present. The glycolonitrile may be converted to amineacetic acids, such as ethylenediamine-tetracetic acid, by reaction with the amine in the presence of alkali hydroxide. Other specified amines are mono- and di-hydroxyethylethylenediamine, diethylenetriamine, triethylenepentamine and hydroxyethyl substitution products thereof.
GB215759A 1959-01-20 1959-01-20 Improvements in the preparation of glycolonitrile Expired GB895681A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB215759A GB895681A (en) 1959-01-20 1959-01-20 Improvements in the preparation of glycolonitrile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB215759A GB895681A (en) 1959-01-20 1959-01-20 Improvements in the preparation of glycolonitrile

Publications (1)

Publication Number Publication Date
GB895681A true GB895681A (en) 1962-05-09

Family

ID=9734595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB215759A Expired GB895681A (en) 1959-01-20 1959-01-20 Improvements in the preparation of glycolonitrile

Country Status (1)

Country Link
GB (1) GB895681A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102875400A (en) * 2012-09-21 2013-01-16 烟台万华聚氨酯股份有限公司 Diethylenetriamine pentaacetic acid preparation method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102875400A (en) * 2012-09-21 2013-01-16 烟台万华聚氨酯股份有限公司 Diethylenetriamine pentaacetic acid preparation method

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