FR960873A - - Google Patents

Info

Publication number
FR960873A
FR960873A FR960873DA FR960873A FR 960873 A FR960873 A FR 960873A FR 960873D A FR960873D A FR 960873DA FR 960873 A FR960873 A FR 960873A
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
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.)
Publication date
Application granted granted Critical
Publication of FR960873A publication Critical patent/FR960873A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • 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
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/55—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of oligo- or polymeric oxo-compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR960873D 1945-05-01 Expired FR960873A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US591390A US2460592A (en) 1945-05-01 1945-05-01 Generation of monomeric formaldehyde gas from formaldehyde polymers

Publications (1)

Publication Number Publication Date
FR960873A true FR960873A (fr) 1950-04-27

Family

ID=24366307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR960873D Expired FR960873A (fr) 1945-05-01

Country Status (3)

Country Link
US (1) US2460592A (fr)
FR (1) FR960873A (fr)
GB (1) GB610563A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790755A (en) * 1953-08-18 1957-04-30 Du Pont Distillation and fractional condensation of formaldehyde
DE1139110B (de) * 1958-04-16 1962-11-08 Basf Ag Verfahren zum Reinigen von Formaldehyd
DE1172657B (de) * 1960-03-07 1964-06-25 Stamicarbon Verfahren zur Herstellung sehr reinen Formaldehyds
ES265436A1 (es) * 1960-03-07 1961-09-01 Stamicarbon Un procedimiento para preparaciën de formaldehido purisimo
DE1181191B (de) * 1963-04-27 1964-11-12 Bayer Ag Verfahren und Vorrichtung zur kontinuierlichen Herstellung von monomerem Formaldehyd
GB1148337A (en) * 1967-05-03 1969-04-10 Ici Ltd The preparation of anhydrous monomeric glyoxal
GB1398639A (en) * 1972-08-05 1975-06-25 Kanebo Ltd Generation of gaseous formaldehyde from formaldehyde polymer
US10112165B1 (en) 2017-09-20 2018-10-30 Airgas, Inc. Apparatus for generating formaldehyde monomer vapor
US10179318B1 (en) 2017-09-20 2019-01-15 Airgas, Inc. Method for generating formaldehyde monomer vapor

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189627656A (en) * 1896-12-04 1897-10-09 George Beloe Ellis Improvements in the Production of Formic Aldehyde Vapours.
US676814A (en) * 1900-04-27 1901-06-18 E D Taylor Company Formaldehyde fumigator.
US762845A (en) * 1903-07-08 1904-06-14 Chemical Works Of America Inc Formaldehyde apparatus.
US1536908A (en) * 1921-08-08 1925-05-05 Thermal Ind & Chem Tic Res Co Method of immersing subdivided solids or liquids in liquids
US1687312A (en) * 1923-03-31 1928-10-09 Fritz Pollak Process for manufacturing urea-formaldehyde condensation products
US1892396A (en) * 1928-09-07 1932-12-27 Selden Co Purification of nonvolatile organic acids
US2113230A (en) * 1936-09-05 1938-04-05 San Francisco Sulphur Company Sulphur purification
US2328621A (en) * 1942-02-12 1943-09-07 Charles E Crawford Distillation of fatty oils

Also Published As

Publication number Publication date
GB610563A (en) 1948-10-18
US2460592A (en) 1949-02-01

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