GB1146291A - Hydrazine process - Google Patents

Hydrazine process

Info

Publication number
GB1146291A
GB1146291A GB5179865A GB5179865A GB1146291A GB 1146291 A GB1146291 A GB 1146291A GB 5179865 A GB5179865 A GB 5179865A GB 5179865 A GB5179865 A GB 5179865A GB 1146291 A GB1146291 A GB 1146291A
Authority
GB
United Kingdom
Prior art keywords
resin
solution
hydrazine
exchange resin
salt
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
GB5179865A
Inventor
Brian John Needham
Michael Arthur Smith
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.)
Fisons Industrial Chemicals Ltd
Original Assignee
Fisons Industrial 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 Fisons Industrial Chemicals Ltd filed Critical Fisons Industrial Chemicals Ltd
Priority to GB5179865A priority Critical patent/GB1146291A/en
Publication of GB1146291A publication Critical patent/GB1146291A/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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Abstract

1,146,291. Hydrazine hydrate. FISONS INDUSTRIAL CHEMICALS Ltd. 30 Nov., 1966 [7 Dec., 19651, No. 51798/65. Heading C1A. Hydrazine hydrate is obtained from an aqueous solution of a hydrazine salt by contacting the solution with a macroreticular anion or cation exchange resin. If an anion exchange resin is used the hydrazine hydrate is recovered by separating the solution from the resin; if a cation exchange resin is used, the resin is separated from the acid liberated in the process, and is then treated with an aqueous base (preferably a 4-20% by wt. solution of ammonia) to liberate the hydrazine. The ion exchange resin is preferably polystyrene or a styrene-divinylbenzene copolymer substituted for cation exchange with sulphonic, carboxylic, phosphoric or phosphinic acid groups and for an anion exchange with an aromatic or aliphatic amine or a quaternary ammonium compound. The resin is preferably used as a stationary bed in one or more columns in series, the hydrazine salt solution (which preferably contains 2-30% by weight of the salt) being passed at a temperature between 15‹ C. and the boiling point of the solution or the maximum permissible temperature for the resin.
GB5179865A 1965-12-07 1965-12-07 Hydrazine process Expired GB1146291A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5179865A GB1146291A (en) 1965-12-07 1965-12-07 Hydrazine process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5179865A GB1146291A (en) 1965-12-07 1965-12-07 Hydrazine process

Publications (1)

Publication Number Publication Date
GB1146291A true GB1146291A (en) 1969-03-26

Family

ID=10461414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5179865A Expired GB1146291A (en) 1965-12-07 1965-12-07 Hydrazine process

Country Status (1)

Country Link
GB (1) GB1146291A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559472A1 (en) * 1984-02-14 1985-08-16 Atochem PROCESS FOR PURIFYING AQUEOUS SOLUTIONS OF HYDRAZINE HYDRATE
US7758757B2 (en) 2007-10-19 2010-07-20 E. I. Du Pont De Nemours And Company Method for removing hydrazine compounds

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559472A1 (en) * 1984-02-14 1985-08-16 Atochem PROCESS FOR PURIFYING AQUEOUS SOLUTIONS OF HYDRAZINE HYDRATE
EP0153216A1 (en) * 1984-02-14 1985-08-28 Elf Atochem S.A. Process for the purification of aqueous hydrazine hydrate solutions
US4657751A (en) * 1984-02-14 1987-04-14 Atochem Process for purifying aqueous hydrazine hydrate solutions
US7758757B2 (en) 2007-10-19 2010-07-20 E. I. Du Pont De Nemours And Company Method for removing hydrazine compounds

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