SE395687B - Forfarande for framstellning av metanolfattiga vattenlosningar av formaldehyd - Google Patents

Forfarande for framstellning av metanolfattiga vattenlosningar av formaldehyd

Info

Publication number
SE395687B
SE395687B SE7300451A SE7300451A SE395687B SE 395687 B SE395687 B SE 395687B SE 7300451 A SE7300451 A SE 7300451A SE 7300451 A SE7300451 A SE 7300451A SE 395687 B SE395687 B SE 395687B
Authority
SE
Sweden
Prior art keywords
formaldehyde
methanol
procedure
preparation
poor water
Prior art date
Application number
SE7300451A
Other languages
English (en)
Inventor
G Matthias
H Diem
G Lehmann
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 SE395687B publication Critical patent/SE395687B/sv

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
    • C07C45/83—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation by extractive distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
SE7300451A 1972-01-15 1973-01-12 Forfarande for framstellning av metanolfattiga vattenlosningar av formaldehyd SE395687B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2201865A DE2201865C3 (de) 1972-01-15 1972-01-15 Verfahren zur Herstellung methanolarmer, wäßriger Formaldehydlösungen

Publications (1)

Publication Number Publication Date
SE395687B true SE395687B (sv) 1977-08-22

Family

ID=5833094

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7300451A SE395687B (sv) 1972-01-15 1973-01-12 Forfarande for framstellning av metanolfattiga vattenlosningar av formaldehyd

Country Status (7)

Country Link
US (1) US3853719A (sv)
JP (1) JPS5317574B2 (sv)
BE (1) BE794046A (sv)
DE (1) DE2201865C3 (sv)
FR (1) FR2168343B1 (sv)
GB (1) GB1406144A (sv)
SE (1) SE395687B (sv)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218089B (en) * 1988-04-07 1991-11-06 Asahi Chemical Ind Process for producing high purity formaldehyde
DE10062814A1 (de) * 2000-12-15 2002-06-20 Ticona Gmbh Verfahren zur Entfernung von Methanol aus formaldeyhdhaltigen Lösungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452414A (en) * 1945-07-27 1948-10-26 Skelly Oil Co Concentrating and refining formaldehyde solutions by distillation with oxygenated hydrocarbon derivatives
US2678905A (en) * 1949-11-17 1954-05-18 Celanese Corp Purification of aqueous formaldehyde solutions by extractive distillation
US2690994A (en) * 1950-02-01 1954-10-05 James F Mccants Formaldehyde purification by use of alcohols
US3558719A (en) * 1965-10-14 1971-01-26 Exxon Research Engineering Co Recovery of aqueous formaldehyde by extraction with an alkanol followed by distillation

Also Published As

Publication number Publication date
FR2168343B1 (sv) 1977-12-30
JPS4878111A (sv) 1973-10-20
GB1406144A (en) 1975-09-17
DE2201865C3 (de) 1974-12-19
JPS5317574B2 (sv) 1978-06-09
DE2201865B2 (de) 1974-03-14
US3853719A (en) 1974-12-10
BE794046A (fr) 1973-07-16
FR2168343A1 (sv) 1973-08-31
DE2201865A1 (de) 1973-07-26

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