GB735779A - Production of ethylene diamine - Google Patents

Production of ethylene diamine

Info

Publication number
GB735779A
GB735779A GB3090/53A GB309053A GB735779A GB 735779 A GB735779 A GB 735779A GB 3090/53 A GB3090/53 A GB 3090/53A GB 309053 A GB309053 A GB 309053A GB 735779 A GB735779 A GB 735779A
Authority
GB
United Kingdom
Prior art keywords
ammonia
ethylene
ethylene chloride
chloride
ethylene diamine
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
GB3090/53A
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB735779A publication Critical patent/GB735779A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/04—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups
    • C07C209/06—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of halogen atoms
    • C07C209/08—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of halogen atoms with formation of amino groups bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/62—Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/82—Purification; Separation; Stabilisation; Use of additives
    • C07C209/86—Separation

Landscapes

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

Abstract

In the production of ethylene diamine ethylene chloride is reacted with an aqueous solution of ammonia having a concentration above 35 per cent by weight. The process is carried out at elevated temperature and in a closed system under pressure. The process may be carried out continuously especially when that proportion of ethylene chloride which dissolves in the aqueous ammonia is used. In an example a mixture of ammonia and water and ethylene chloride are pumped under pressure through a system of nickel pipes maintained at an elevated temperature. Surplus ammonia is expelled from the reaction mixture in a pressure column. Sodium hydroxide is added to the product after dilution with water, sodium chloride is separated and ethylene diamine hydrate and polyethylene polyamine are obtained on fractionation. Variations of reaction velocity with concentration of ammonia in the solutions employed and the solubilities of ethylene chloride in aqueous ammonia solutions of various strengths at various temperatures are recorded in Figs. 1-3 (not shown).
GB3090/53A 1952-02-09 1953-02-03 Production of ethylene diamine Expired GB735779A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE735779X 1952-02-09

Publications (1)

Publication Number Publication Date
GB735779A true GB735779A (en) 1955-08-31

Family

ID=6642181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3090/53A Expired GB735779A (en) 1952-02-09 1953-02-03 Production of ethylene diamine

Country Status (1)

Country Link
GB (1) GB735779A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202713A (en) * 1959-09-25 1965-08-24 Montedison Spa Process for the separation of ethylenediamine from a crude product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202713A (en) * 1959-09-25 1965-08-24 Montedison Spa Process for the separation of ethylenediamine from a crude product

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