FR2052470A5 - - Google Patents

Info

Publication number
FR2052470A5
FR2052470A5 FR7019769A FR7019769A FR2052470A5 FR 2052470 A5 FR2052470 A5 FR 2052470A5 FR 7019769 A FR7019769 A FR 7019769A FR 7019769 A FR7019769 A FR 7019769A FR 2052470 A5 FR2052470 A5 FR 2052470A5
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.)
Expired
Application number
FR7019769A
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik 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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Application granted granted Critical
Publication of FR2052470A5 publication Critical patent/FR2052470A5/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • C07C45/84—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation by azeotropic distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7019769A 1969-06-06 1970-05-29 Expired FR2052470A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691928633 DE1928633C3 (de) 1969-06-06 1969-06-06 Verfahren zur Herstellung von wasserarmen Lösungen von Formaldehyd

Publications (1)

Publication Number Publication Date
FR2052470A5 true FR2052470A5 (fr) 1971-04-09

Family

ID=5736152

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7019769A Expired FR2052470A5 (fr) 1969-06-06 1970-05-29

Country Status (7)

Country Link
AT (1) AT297675B (fr)
BE (1) BE751379A (fr)
CH (1) CH540871A (fr)
DE (1) DE1928633C3 (fr)
FR (1) FR2052470A5 (fr)
GB (1) GB1301533A (fr)
NL (1) NL7008230A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980002422A1 (fr) * 1979-05-04 1980-11-13 Y Blashin Procede d'obtention de solutions concentrees de formaldehyde
US4962235A (en) * 1988-04-07 1990-10-09 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing high purity formaldehyde
GB9812083D0 (en) 1998-06-05 1998-08-05 Ici Plc Removal of water
CN105272836A (zh) * 2014-07-24 2016-01-27 中国石油大学(华东) 一种制备甲醛醇溶液的方法

Also Published As

Publication number Publication date
GB1301533A (fr) 1972-12-29
DE1928633A1 (de) 1970-12-10
DE1928633B2 (de) 1977-08-04
AT297675B (de) 1972-04-10
DE1928633C3 (de) 1978-03-23
NL7008230A (fr) 1970-12-08
BE751379A (fr) 1970-12-03
CH540871A (de) 1973-08-31

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Legal Events

Date Code Title Description
ST Notification of lapse