CH540871A - Process for the preparation of low-water solutions of formaldehyde - Google Patents

Process for the preparation of low-water solutions of formaldehyde

Info

Publication number
CH540871A
CH540871A CH838470A CH838470A CH540871A CH 540871 A CH540871 A CH 540871A CH 838470 A CH838470 A CH 838470A CH 838470 A CH838470 A CH 838470A CH 540871 A CH540871 A CH 540871A
Authority
CH
Switzerland
Prior art keywords
formaldehyde
preparation
low
water solutions
solutions
Prior art date
Application number
CH838470A
Other languages
German (de)
Inventor
Karl Dr Adam
Herwig Dr Hoffmann
Karl Dr Merkel
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 CH540871A publication Critical patent/CH540871A/en

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)
CH838470A 1969-06-06 1970-06-04 Process for the preparation of low-water solutions of formaldehyde CH540871A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691928633 DE1928633C3 (en) 1969-06-06 1969-06-06 Process for the preparation of low-water solutions of formaldehyde

Publications (1)

Publication Number Publication Date
CH540871A true CH540871A (en) 1973-08-31

Family

ID=5736152

Family Applications (1)

Application Number Title Priority Date Filing Date
CH838470A CH540871A (en) 1969-06-06 1970-06-04 Process for the preparation of low-water solutions of formaldehyde

Country Status (7)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2066817A (en) * 1979-05-04 1981-07-15 Blazhin J M Method of obtaining concentrated solutions of formaldehyde
GB2218089B (en) * 1988-04-07 1991-11-06 Asahi Chemical Ind Process for producing high purity formaldehyde
GB9812083D0 (en) * 1998-06-05 1998-08-05 Ici Plc Removal of water
CN105272836A (en) * 2014-07-24 2016-01-27 中国石油大学(华东) Method for preparing formaldehyde alcohol solution

Also Published As

Publication number Publication date
DE1928633A1 (en) 1970-12-10
DE1928633C3 (en) 1978-03-23
NL7008230A (en) 1970-12-08
AT297675B (en) 1972-04-10
GB1301533A (en) 1972-12-29
BE751379A (en) 1970-12-03
FR2052470A5 (en) 1971-04-09
DE1928633B2 (en) 1977-08-04

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Legal Events

Date Code Title Description
PL Patent ceased