FR2189400A1 - - Google Patents

Info

Publication number
FR2189400A1
FR2189400A1 FR7322424A FR7322424A FR2189400A1 FR 2189400 A1 FR2189400 A1 FR 2189400A1 FR 7322424 A FR7322424 A FR 7322424A FR 7322424 A FR7322424 A FR 7322424A FR 2189400 A1 FR2189400 A1 FR 2189400A1
Authority
FR
France
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.)
Granted
Application number
FR7322424A
Other versions
FR2189400B1 (fr
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Edison SpA
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 Montedison SpA, Montecatini Edison SpA filed Critical Montedison SpA
Publication of FR2189400A1 publication Critical patent/FR2189400A1/fr
Application granted granted Critical
Publication of FR2189400B1 publication Critical patent/FR2189400B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
    • C07D317/12—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
FR7322424A 1972-06-22 1973-06-20 Expired FR2189400B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT26030/72A IT956765B (it) 1972-06-22 1972-06-22 Procedimento per la purificazione di 1 3 diossolano

Publications (2)

Publication Number Publication Date
FR2189400A1 true FR2189400A1 (fr) 1974-01-25
FR2189400B1 FR2189400B1 (fr) 1976-11-12

Family

ID=11218455

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7322424A Expired FR2189400B1 (fr) 1972-06-22 1973-06-20

Country Status (8)

Country Link
US (1) US3857759A (fr)
JP (1) JPS4962469A (fr)
BE (1) BE801313A (fr)
DE (1) DE2331722A1 (fr)
FR (1) FR2189400B1 (fr)
GB (1) GB1391754A (fr)
IT (1) IT956765B (fr)
NL (1) NL7308421A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2843468A1 (de) * 1978-10-05 1980-04-24 Hoechst Ag Verfahren zur gleichzeitigen herstellung von trioxan und cyclischen formalen
US4278506A (en) * 1979-12-21 1981-07-14 Phillips Petroleum Company Polymer solution purification
FI79107C (fi) * 1984-06-25 1989-11-10 Orion Yhtymae Oy Foerfarande foer framstaellning av stabil -form av prazosinhydroklorid.
DE3606121A1 (de) * 1986-02-26 1987-08-27 Texaco Ag Verfahren zur kontinuierlichen abtrennung von wasser aus gemischen mit organischen substanzen
JP3587874B2 (ja) * 1994-01-11 2004-11-10 エイチエヌエイ・ホールディングス・インコーポレーテッド 環状ホルマールの精製方法
JP3658009B2 (ja) * 1994-01-11 2005-06-08 エイチエヌエイ・ホールディングス・インコーポレーテッド 環状ホルマールの精製方法
US5456805A (en) * 1994-01-21 1995-10-10 Hoechst Celanese Corporation Purification process for cyclic formals
US5616736A (en) * 1994-02-04 1997-04-01 Hoechst Celanese Corporation Method of preparing cyclic formals
WO1996031495A1 (fr) * 1995-04-05 1996-10-10 Nippon Shokubai Co., Ltd. Procede de recuperation et de deshydratation du sulfure d'ethylene
SG65045A1 (en) * 1997-01-29 1999-05-25 Toray Industries A method for continuously producing a cyclic formal
JP4805429B2 (ja) * 1997-02-18 2011-11-02 三菱瓦斯化学株式会社 環状ホルマールの製造方法
US6036913A (en) * 1997-02-27 2000-03-14 Konica Corporation Cellulose ester film manufacturing method
AT505750B1 (de) 2007-12-21 2009-04-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur grobabscheidung von feststoffpartikeln aus feststoffbeladenen gasen
JP5596782B2 (ja) 2010-04-16 2014-09-24 旭化成ケミカルズ株式会社 ポリアセタール樹脂組成物、その製造方法及び成形体

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172687B (de) * 1959-04-18 1964-06-25 Degussa Verfahren zur Reinigung von Dioxolan
DE1294390B (de) * 1964-09-12 1969-05-08 Basf Ag Verfahren zur Reinigung von rohem Dioxolan
DE1279025B (de) * 1965-01-22 1968-10-03 Basf Ag Verfahren zur kontinuierlichen Reinigung von Dioxolan
NL6603978A (fr) * 1965-03-31 1966-10-03
US3410760A (en) * 1965-08-06 1968-11-12 Ici Ltd Recovery of ethers by contact with ammonia and an alkaline metal in a liquid medium

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
US3857759A (en) 1974-12-31
BE801313A (fr) 1973-12-26
IT956765B (it) 1973-10-10
JPS4962469A (fr) 1974-06-17
DE2331722A1 (de) 1974-01-10
NL7308421A (fr) 1973-12-27
FR2189400B1 (fr) 1976-11-12
GB1391754A (en) 1975-04-23

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Legal Events

Date Code Title Description
ST Notification of lapse