GB897746A - Process for the manufacture of polyethylene imine - Google Patents

Process for the manufacture of polyethylene imine

Info

Publication number
GB897746A
GB897746A GB836160A GB836160A GB897746A GB 897746 A GB897746 A GB 897746A GB 836160 A GB836160 A GB 836160A GB 836160 A GB836160 A GB 836160A GB 897746 A GB897746 A GB 897746A
Authority
GB
United Kingdom
Prior art keywords
solvent
hydrochloride
aqueous solution
thionyl chloride
water
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
GB836160A
Inventor
Friedrich Wolf
Martin Ehrlich
Dieter Warnecke
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.)
Filmfabrik Wolfen VEB
Original Assignee
Filmfabrik Wolfen VEB
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 Filmfabrik Wolfen VEB filed Critical Filmfabrik Wolfen VEB
Priority to GB836160A priority Critical patent/GB897746A/en
Publication of GB897746A publication Critical patent/GB897746A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D203/00—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom
    • C07D203/04—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D203/06—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D203/08—Heterocyclic compounds containing three-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring nitrogen atom
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/02—Polyamines
    • C08G73/0206—Polyalkylene(poly)amines
    • C08G73/0213—Preparatory process

Landscapes

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

Abstract

In the process for the preparation of polyethylene imine by reacting monoethanolamine hydrochloride with thionyl chloride to form a b -chlorethylamine hydrochloride, which is then reacted in aqueous solution with hot aqueous solution of caustic soda to yield ethylene imine which is then polymerized, the monoethanolamine hydrochloride is suspended in an inert aromatic solvent, e.g. chlorobenzene, for the reaction with the thionyl chloride, and the solvent and excess thionyl chloride are then distilled off, the b -chlorethylamine hydrochloride is dissolved in water and the residual solvent and part of the water removed by azeotropic distillation before polymerization. The monoethanolamine hydrochloride is suspended in the solvent by adding it to an aqueous solution in excess and removing the water by azeotropic distillation. The ethylene imine produced in about 40% strength is polymerized under a reflux condenser and an atmosphere of carbon dioxide to yield a 40-50% polyethyleneimine solution.ALSO:In the process for the preparation of ethylene imine by reacting monoethanolamine hydrochloride with thionyl chloride to form b -chlorethylamine hydrochloride, which is then reacted in aqueous solution with hot aqueous solution of caustic soda, the monoethanolamine hydrochloride is suspended in an inert aromatic solvent, e.g. chlorobenzene, for the reaction with the thionyl chloride, and the solvent and excess thionyl chloride are then distilled off, the b -chloramine hydrochloride is dissolved in water and the residual solvent and part of the water removed by azeotropic distillation. The monoethanolamine hydrochloride is suspended in the solvent by adding excess of solvent to an aqueous solution and removing the water by azeotropic distillation. The ethylene imine is produced in about 40% strength and may be polymerized under a reflux condenser and an atmosphere of carbon dioxide, to yield a 40%-50% polyethyleneimine solution.
GB836160A 1960-03-09 1960-03-09 Process for the manufacture of polyethylene imine Expired GB897746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB836160A GB897746A (en) 1960-03-09 1960-03-09 Process for the manufacture of polyethylene imine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB836160A GB897746A (en) 1960-03-09 1960-03-09 Process for the manufacture of polyethylene imine

Publications (1)

Publication Number Publication Date
GB897746A true GB897746A (en) 1962-05-30

Family

ID=9851058

Family Applications (1)

Application Number Title Priority Date Filing Date
GB836160A Expired GB897746A (en) 1960-03-09 1960-03-09 Process for the manufacture of polyethylene imine

Country Status (1)

Country Link
GB (1) GB897746A (en)

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