GB762625A - Improvements in the production of piperazine - Google Patents

Improvements in the production of piperazine

Info

Publication number
GB762625A
GB762625A GB1745454A GB1745454A GB762625A GB 762625 A GB762625 A GB 762625A GB 1745454 A GB1745454 A GB 1745454A GB 1745454 A GB1745454 A GB 1745454A GB 762625 A GB762625 A GB 762625A
Authority
GB
United Kingdom
Prior art keywords
piperazine
production
monoethanolamine
adipate
regenerated
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
GB1745454A
Inventor
Roy James Collins
Valerie Grenville
Vladimir Petrow
Bennett Sturgeon
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.)
BDH Chemicals Ltd
Original Assignee
BDH Chemicals Ltd
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 BDH Chemicals Ltd filed Critical BDH Chemicals Ltd
Priority to GB1745454A priority Critical patent/GB762625A/en
Publication of GB762625A publication Critical patent/GB762625A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
    • C07D295/023—Preparation; Separation; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Piperazine is manufactured by a process comprising heating monoethanolamine with at least one molar proportion of ammonium chloride or ammonium bromide at a temperature of from approximately 240 DEG to 265 DEG C. Preferably the piperazine is isolated in the form of its adipic acid salt from which it may be regenerated in known manner, e.g. by treating the adipate with concentrated aqueous alkali hydroxide.
GB1745454A 1954-06-14 1954-06-14 Improvements in the production of piperazine Expired GB762625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1745454A GB762625A (en) 1954-06-14 1954-06-14 Improvements in the production of piperazine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1745454A GB762625A (en) 1954-06-14 1954-06-14 Improvements in the production of piperazine

Publications (1)

Publication Number Publication Date
GB762625A true GB762625A (en) 1956-11-28

Family

ID=10095460

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1745454A Expired GB762625A (en) 1954-06-14 1954-06-14 Improvements in the production of piperazine

Country Status (1)

Country Link
GB (1) GB762625A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023211A (en) * 1960-09-12 1962-02-27 Jefferson Chem Co Inc Method for the preparation of piperazine monohydrochloride
US3126383A (en) * 1964-03-24 Method for recovering alkylamine-free

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126383A (en) * 1964-03-24 Method for recovering alkylamine-free
US3023211A (en) * 1960-09-12 1962-02-27 Jefferson Chem Co Inc Method for the preparation of piperazine monohydrochloride

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