BE751379A - Procede de preparation de solutions de formaldehyde contenant tres peu d'eau - Google Patents

Procede de preparation de solutions de formaldehyde contenant tres peu d'eau

Info

Publication number
BE751379A
BE751379A BE751379DA BE751379A BE 751379 A BE751379 A BE 751379A BE 751379D A BE751379D A BE 751379DA BE 751379 A BE751379 A BE 751379A
Authority
BE
Belgium
Prior art keywords
solutions containing
little water
formaldehyde solutions
preparing formaldehyde
preparing
Prior art date
Application number
Other languages
English (en)
Original Assignee
Basf 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 Ag filed Critical Basf Ag
Publication of BE751379A publication Critical patent/BE751379A/fr

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)
BE751379D 1969-06-06 1970-06-03 Procede de preparation de solutions de formaldehyde contenant tres peu d'eau BE751379A (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
BE751379A true BE751379A (fr) 1970-12-03

Family

ID=5736152

Family Applications (1)

Application Number Title Priority Date Filing Date
BE751379D BE751379A (fr) 1969-06-06 1970-06-03 Procede de preparation de solutions de formaldehyde contenant tres peu d'eau

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
AT297675B (de) 1972-04-10
CH540871A (de) 1973-08-31
DE1928633B2 (de) 1977-08-04
GB1301533A (fr) 1972-12-29
DE1928633A1 (de) 1970-12-10
NL7008230A (fr) 1970-12-08
DE1928633C3 (de) 1978-03-23
FR2052470A5 (fr) 1971-04-09

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