GB1135476A - Production of formaldehyde - Google Patents

Production of formaldehyde

Info

Publication number
GB1135476A
GB1135476A GB1524066A GB1524066A GB1135476A GB 1135476 A GB1135476 A GB 1135476A GB 1524066 A GB1524066 A GB 1524066A GB 1524066 A GB1524066 A GB 1524066A GB 1135476 A GB1135476 A GB 1135476A
Authority
GB
United Kingdom
Prior art keywords
methanol
fraction
crude
boiling point
lower boiling
Prior art date
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
GB1524066A
Inventor
Dieter Ambros
Wilhelm Baumeister
Gerd Duembgen
Ulrich Gerloff
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
Publication of GB1135476A publication Critical patent/GB1135476A/en
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
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
    • C07C45/38—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a primary hydroxyl group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

1,135,476. Oxidation of methanol. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 April, 1966 [7 April, 1965], No. 15240/66. Heading C2C. Production of formaldehyde by removing a fraction of lower boiling point than methanol from a crude liquid methanol, vaporizing the remainder, subjecting the resulting vapour to oxidative dehydrogenation with oxygen or a gas containing free oxygen in contact with a metallic silver catalyst, optionally in the presence of steam, at elevated temperature to form formaldehyde characterized by adding alkali to the crude methanol before, during and/or after removal of the said fraction of lower boiling point than methanol and before vaporization of the remainder. The liquid crude methanol used is obtained by conventional methods from carbon monoxide and hydrogen and may contain water and other specified impurities. The fraction of lower boiling point than methanol may be contaminated with iron carbonyl and boils in the range 55‹ to 64‹ C. The preferred alkalis are hydroxides, oxides or carbonates of the alkali metals or alkaline earth metals in solid form or dissolved in water and are added, at a temperature in the range 30‹ to 150‹ C., in amounts such that a pH of 11 to 13À5 is established in the crude liquid methanol. Conventional metallic silver catalysts are used in the oxidative dehydrogenation which is effected at from 400‹ to 750‹ C.
GB1524066A 1965-04-07 1966-04-06 Production of formaldehyde Expired GB1135476A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB81338A DE1235881B (en) 1965-04-07 1965-04-07 Process for the production of formaldehyde

Publications (1)

Publication Number Publication Date
GB1135476A true GB1135476A (en) 1968-12-04

Family

ID=6981062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1524066A Expired GB1135476A (en) 1965-04-07 1966-04-06 Production of formaldehyde

Country Status (4)

Country Link
BE (1) BE679226A (en)
DE (1) DE1235881B (en)
FR (1) FR1474620A (en)
GB (1) GB1135476A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932522A (en) * 1971-03-25 1976-01-13 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Manufacture of formaldehyde
US8569546B2 (en) 2011-04-26 2013-10-29 Basf Se Oxidative dehydrogenation of methanol to formaldehyde over silver-containing knits

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2444586C3 (en) * 1974-09-18 1986-07-10 Basf Ag, 6700 Ludwigshafen Process for the preparation of concentrated, aqueous solutions of formaldehyde
DE3004436A1 (en) * 1980-02-07 1981-08-13 Basf Ag, 6700 Ludwigshafen METHOD FOR PRODUCING FORMALDEHYDE
DE3110723A1 (en) * 1981-03-19 1982-10-07 Bayer Ag, 5090 Leverkusen METHOD FOR CLEANING METHANOL USED IN THE PRODUCTION OF FORMALDEHYDE
DK2701841T3 (en) 2011-04-26 2015-09-21 Basf Se METHOD FOR oxidative DEHYDRATION OF METHANOL TO FORMALDEHYDE ON argentiferous KNIT
EP3585515A1 (en) 2017-02-24 2020-01-01 Basf Se Silver catalyst system having a reduced pressure drop for the oxidative dehydrogenation of alcohols
EP3539657A1 (en) 2018-03-14 2019-09-18 Basf Se Improved catalysts comprising silver based intermetallic compounds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3932522A (en) * 1971-03-25 1976-01-13 Badische Anilin- & Soda-Fabrik Aktiengesellschaft Manufacture of formaldehyde
US8569546B2 (en) 2011-04-26 2013-10-29 Basf Se Oxidative dehydrogenation of methanol to formaldehyde over silver-containing knits

Also Published As

Publication number Publication date
BE679226A (en) 1966-10-07
FR1474620A (en) 1967-06-09
DE1235881B (en) 1967-03-09

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