DE3574454D1 - Verfahren zur herstellung von wasserfreiem hydrazin aus hydrazin-hydrat. - Google Patents

Verfahren zur herstellung von wasserfreiem hydrazin aus hydrazin-hydrat.

Info

Publication number
DE3574454D1
DE3574454D1 DE8585402578T DE3574454T DE3574454D1 DE 3574454 D1 DE3574454 D1 DE 3574454D1 DE 8585402578 T DE8585402578 T DE 8585402578T DE 3574454 T DE3574454 T DE 3574454T DE 3574454 D1 DE3574454 D1 DE 3574454D1
Authority
DE
Germany
Prior art keywords
tube
sleeve
hydrazine
phase
light
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 - Fee Related
Application number
DE8585402578T
Other languages
English (en)
Inventor
Robert Abraham
Bernard Michel Aubry
Roger Elie Cohen-Adad
Marie-There Saugier-Cohen-Adad
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.)
Centre National dEtudes Spatiales CNES
Original Assignee
Centre National dEtudes Spatiales CNES
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 Centre National dEtudes Spatiales CNES filed Critical Centre National dEtudes Spatiales CNES
Application granted granted Critical
Publication of DE3574454D1 publication Critical patent/DE3574454D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
DE8585402578T 1985-12-20 1985-12-20 Verfahren zur herstellung von wasserfreiem hydrazin aus hydrazin-hydrat. Expired - Fee Related DE3574454D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85402578A EP0226686B1 (de) 1985-12-20 1985-12-20 Verfahren zur Herstellung von wasserfreiem Hydrazin aus Hydrazin-Hydrat

Publications (1)

Publication Number Publication Date
DE3574454D1 true DE3574454D1 (de) 1990-01-04

Family

ID=8194567

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585402578T Expired - Fee Related DE3574454D1 (de) 1985-12-20 1985-12-20 Verfahren zur herstellung von wasserfreiem hydrazin aus hydrazin-hydrat.

Country Status (3)

Country Link
EP (1) EP0226686B1 (de)
AT (1) ATE48239T1 (de)
DE (1) DE3574454D1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329599C1 (de) * 1993-09-02 1995-03-16 Bayer Ag Verfahren zur Entfernung von Verunreinigungen aus Hydrazinhydrat

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690378A (en) * 1948-10-15 1954-09-28 Olin Ind Inc Manufacture of hydrazine
DE1015804B (de) * 1954-12-10 1957-09-19 Hans Christoph Wolf Dipl Phys Verfahren zum Reinigen von rohen oder schon vorgereinigten, unzersetzt schmelzbaren organischen Verbindungen, die mit den in ihnen noch enthaltenen Verunreinigungen keine Mischkristalle bilden
US3652218A (en) * 1969-12-02 1972-03-28 Olin Corp Low impurity hydrazine

Also Published As

Publication number Publication date
EP0226686A1 (de) 1987-07-01
ATE48239T1 (de) 1989-12-15
EP0226686B1 (de) 1989-11-29

Similar Documents

Publication Publication Date Title
KR890003653A (ko) 다단식 정제 단위 공정
US2174614A (en) Method of producing polyphosphates and polyphosphate mixtures
KR970032948A (ko) 결정화 방법
US4780568A (en) Purification of methacrylic acid from an oxydehydrogenation by crystallization
DE3574454D1 (de) Verfahren zur herstellung von wasserfreiem hydrazin aus hydrazin-hydrat.
ATE342269T1 (de) Herstellung von hochreiner l-ribose aus l- arabinose
US3912803A (en) Purification of phosphoric acid
DE3767980D1 (de) Verfahren zur herstellung von kristallen intermetallischer verbindungen, insbesondere einzelner einkristalle, durch abkuehlung von legierungsschmelzen.
KR890016014A (ko) 고순도 카프로락탐의 제조방법
JPS5734026A (en) Production of high-purity potassium fluorotantalate
US4032613A (en) Removal of iron from aluminum nitrate
BR8306875A (pt) Processo para a purificacao de acido fosforico em processo por via umida
GB1198160A (en) A Method of Refining 2,6-Xylenol
KR890700559A (ko) 적어도 99.5%의 순도를 가지는 파라-크시롤의 제조방법
GB1009736A (en) Method for purifying salt
RU2078038C1 (ru) Способ переработки сыннырита
SU793595A1 (ru) Способ очистки веществ методомфРАКциОННОгО плАВлЕНи
GR880100282A (en) Rurification method for the impure 4- aminophenole
GB1235208A (en) Purification of alkyl methacrylates
GB917916A (en) Process and apparatus for the separation of substances by fractional crystallisationfrom melts
RU95111922A (ru) Способ выделения компонентов из водных растворов
DE804559C (de) Verfahren zum Entfernen oeliger Verunreinigungen aus Naphthalin
IT1318508B1 (it) Processo per la separazione di 2,6-dimetilnaftalene da miscele che locontengono.
SU599819A1 (ru) Способ очистки веществ от примесей, понижающих температуру кристаллизации
SU585242A1 (ru) Способ регенерации осадительной ванны вискозного производства

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee