GB808119A - Improved process for manufacturing furfural - Google Patents
Improved process for manufacturing furfuralInfo
- Publication number
- GB808119A GB808119A GB25772/57A GB2577257A GB808119A GB 808119 A GB808119 A GB 808119A GB 25772/57 A GB25772/57 A GB 25772/57A GB 2577257 A GB2577257 A GB 2577257A GB 808119 A GB808119 A GB 808119A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steam
- digestion
- steaming
- raw material
- catalyst
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
- C07D307/48—Furfural
- C07D307/50—Preparation from natural products
Abstract
In a process for producing furfural by steamdigestion of a pentosan-containing raw material in the presence of a non-volatile acid catalyst, the raw material is subjected, prior to digestion, to the continuous flow of steam therethrough under a steam pressure less than that necessary to produce digestion, and then simultaneously digested and steam-distilled under a pressure greater than 20 p.s.i.g. Suitable conditions for the preliminary treatment include steam pressures up to 20 p.s.i.g. for times of 15-75 minutes. Suitable catalysts include sulphuric acid, phosphoric acid and alkane sulphonic acids. The pre-steaming may be effected with or without the catalyst and added moisture. Examples are given in which the pre-steaming is carried out in the same vessel or a different vessel from that used for the digestion and distillation. Specification 203,691, [Class 2 (3)], is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US626091A US2884428A (en) | 1956-12-04 | 1956-12-04 | Process for manufacturing furfural |
Publications (1)
Publication Number | Publication Date |
---|---|
GB808119A true GB808119A (en) | 1959-01-28 |
Family
ID=24508907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25772/57A Expired GB808119A (en) | 1956-12-04 | 1957-08-15 | Improved process for manufacturing furfural |
Country Status (5)
Country | Link |
---|---|
US (1) | US2884428A (en) |
DE (1) | DE1065854B (en) |
ES (1) | ES237144A1 (en) |
FR (1) | FR1181953A (en) |
GB (1) | GB808119A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115504A (en) * | 1959-02-13 | 1963-12-24 | Defibrator Ab | Method for production of furfural |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4205673A (en) * | 1979-02-05 | 1980-06-03 | Mine Safety Appliances Company | Breathing apparatus with an automatic firing mechanism |
FR2936803B1 (en) | 2008-10-06 | 2012-09-28 | Arkema France | BLOCK COPOLYMER DERIVED FROM RENEWABLE MATERIALS AND METHOD FOR MANUFACTURING SUCH A BLOCK COPOLYMER. |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1735084A (en) * | 1922-09-07 | 1929-11-12 | Quaker Oats Co | Process of manufacturing furfural |
-
0
- DE DENDAT1065854D patent/DE1065854B/en active Pending
-
1956
- 1956-12-04 US US626091A patent/US2884428A/en not_active Expired - Lifetime
-
1957
- 1957-08-14 ES ES0237144A patent/ES237144A1/en not_active Expired
- 1957-08-15 GB GB25772/57A patent/GB808119A/en not_active Expired
- 1957-09-03 FR FR1181953D patent/FR1181953A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3115504A (en) * | 1959-02-13 | 1963-12-24 | Defibrator Ab | Method for production of furfural |
Also Published As
Publication number | Publication date |
---|---|
US2884428A (en) | 1959-04-28 |
DE1065854B (en) | 1959-09-24 |
FR1181953A (en) | 1959-06-19 |
ES237144A1 (en) | 1958-03-01 |
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