GB876038A - A process for the production of hydrazine hydrates - Google Patents

A process for the production of hydrazine hydrates

Info

Publication number
GB876038A
GB876038A GB3468759A GB3468759A GB876038A GB 876038 A GB876038 A GB 876038A GB 3468759 A GB3468759 A GB 3468759A GB 3468759 A GB3468759 A GB 3468759A GB 876038 A GB876038 A GB 876038A
Authority
GB
United Kingdom
Prior art keywords
sulphate
amount
metal
separation
alkaline earth
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
GB3468759A
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 GB876038A publication Critical patent/GB876038A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00Nitrogen; Compounds thereof
    • C01B21/082Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/16Hydrazine; Salts thereof

Landscapes

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

Abstract

Hydrazine hydrate is prepared by reaction of an aqueous solution of di-hydrazine sulphate with an amount of an alkali metal or alkaline earth metal hydroxide, or alkaline earth metal oxide, ranging between 100-150% of the amount stoichiometrically equivalent to the sulphate, followed by the addition of a water-soluble organic liquid in amount 20-500% of the total water present at 15-100 DEG C., separation of the resulting metal sulphate, and working up of the remaining solution by distillation. The use of sodium and potassium hydroxides in the form of 40-45% aqueous solutions and of calcium hydroxide or oxide is referred to. The organic liquid may be a readily volatile, aliphatic alcohol, e.g. methyl, ethyl, or propyl alcohols, and dioxane. Prior to separation of the metal sulphate, the reaction mixture may be cooled to 20-30 DEG C.
GB3468759A 1958-10-13 1959-10-13 A process for the production of hydrazine hydrates Expired GB876038A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF26797A DE1087119B (en) 1958-10-13 1958-10-13 Manufacture of hydrazine hydrate

Publications (1)

Publication Number Publication Date
GB876038A true GB876038A (en) 1961-08-30

Family

ID=7092168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3468759A Expired GB876038A (en) 1958-10-13 1959-10-13 A process for the production of hydrazine hydrates

Country Status (4)

Country Link
BE (1) BE583504A (en)
DE (1) DE1087119B (en)
FR (1) FR1244517A (en)
GB (1) GB876038A (en)

Also Published As

Publication number Publication date
BE583504A (en) 1960-02-01
DE1087119B (en) 1960-08-18
FR1244517A (en) 1960-10-28

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