GB1017663A - Concentration of hydrazine - Google Patents

Concentration of hydrazine

Info

Publication number
GB1017663A
GB1017663A GB4556461A GB4556461A GB1017663A GB 1017663 A GB1017663 A GB 1017663A GB 4556461 A GB4556461 A GB 4556461A GB 4556461 A GB4556461 A GB 4556461A GB 1017663 A GB1017663 A GB 1017663A
Authority
GB
United Kingdom
Prior art keywords
hydrazine
zone
permeate
feed zone
solution
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
GB4556461A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4556461A priority Critical patent/GB1017663A/en
Publication of GB1017663A publication Critical patent/GB1017663A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/16—Hydrazine; Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Aqueous hydrazine solutions are concentrated by removing water therefrom by permeation through cellulosic membranes. The process comprises introducing an aqueous hydrazine solution to the feed zone of a permeation apparatus, which comprises a feed zone separated from a permeate zone by a membrane made from cellulose or a derivative thereof, e.g. cellulose acetate or regenerated cellulose, and recovering from the feed zone and permeate zone solutions enriched and depleted in hydrazine respectively. Sodium chloride or sodium sulphate may be present in the initial solution. The permeate zone may have a pressure less than the vapour pressure of the permeate vapour, and the process may be carried out at 30-70 DEG C. The enriched hydrazine solution may be distilled to recover anhydrous hydrazine.
GB4556461A 1961-12-20 1961-12-20 Concentration of hydrazine Expired GB1017663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4556461A GB1017663A (en) 1961-12-20 1961-12-20 Concentration of hydrazine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4556461A GB1017663A (en) 1961-12-20 1961-12-20 Concentration of hydrazine

Publications (1)

Publication Number Publication Date
GB1017663A true GB1017663A (en) 1966-01-19

Family

ID=10437684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4556461A Expired GB1017663A (en) 1961-12-20 1961-12-20 Concentration of hydrazine

Country Status (1)

Country Link
GB (1) GB1017663A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657751A (en) * 1984-02-14 1987-04-14 Atochem Process for purifying aqueous hydrazine hydrate solutions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4657751A (en) * 1984-02-14 1987-04-14 Atochem Process for purifying aqueous hydrazine hydrate solutions

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