GB1135476A – Production of formaldehyde
– Google Patents
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
1965-04-07
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.)
1965-04-07
Filing date
1966-04-06
Publication date
1968-12-04
1966-04-06
Application filed by BASF SE, Badische Anilin and Sodafabrik AG
filed
Critical
BASF SE
1968-12-04
Publication of GB1135476A
publication
Critical
patent/GB1135476A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
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
PT2701841E
(en)
2011-04-26
2015-08-03
Basf Se
Process for oxidative dehydrogenation of methanol to formaldehyde over silver-containing knits
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
0
FR
FR1474620D
patent/FR1474620A/fr
not_active
Expired
1965
1965-04-07
DE
DEB81338A
patent/DE1235881B/en
active
Pending
1966
1966-04-06
GB
GB1524066A
patent/GB1135476A/en
not_active
Expired
1966-04-07
BE
BE679226D
patent/BE679226A/xx
unknown
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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