GB730602A - Formaldehyde solutions - Google Patents
Formaldehyde solutionsInfo
- Publication number
- GB730602A GB730602A GB25451/52A GB2545152A GB730602A GB 730602 A GB730602 A GB 730602A GB 25451/52 A GB25451/52 A GB 25451/52A GB 2545152 A GB2545152 A GB 2545152A GB 730602 A GB730602 A GB 730602A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formaldehyde
- paraformaldehyde
- solution
- per cent
- water
- 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
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
A solution of formaldehyde is obtained by heating paraformaldehyde containing at least 15 per cent by weight of water with a liquid aliphatic mono- or poly-hydric alcohol so as to cause the paraformaldehyde to depolymerize and go into solution. In the examples, paraformaldehyde containing 16 per cent water is heated (a) with methanol, and (b) with 1,2-propylene glycol to give clear solutions of formaldehyde. Specification 668,964 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US730602XA | 1951-10-12 | 1951-10-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB730602A true GB730602A (en) | 1955-05-25 |
Family
ID=22111469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25451/52A Expired GB730602A (en) | 1951-10-12 | 1952-10-10 | Formaldehyde solutions |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB730602A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013012777A3 (en) * | 2011-07-20 | 2013-03-21 | Angus Chemical Company | Process for making tertiary aminoalcohol compounds |
CN110256216A (en) * | 2019-07-03 | 2019-09-20 | 衡水市银河化工有限责任公司 | A kind of depolymerization method of the formaldehyde of dust containing paraformaldehyde |
CN114853590A (en) * | 2022-04-24 | 2022-08-05 | 漳州市龙文翰苑化工有限公司 | Novel polyformaldehyde depolymerization method |
-
1952
- 1952-10-10 GB GB25451/52A patent/GB730602A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013012777A3 (en) * | 2011-07-20 | 2013-03-21 | Angus Chemical Company | Process for making tertiary aminoalcohol compounds |
US9663443B2 (en) | 2011-07-20 | 2017-05-30 | Angus Chemical Company | Process for making tertiary aminoalcohol compounds |
CN110256216A (en) * | 2019-07-03 | 2019-09-20 | 衡水市银河化工有限责任公司 | A kind of depolymerization method of the formaldehyde of dust containing paraformaldehyde |
CN114853590A (en) * | 2022-04-24 | 2022-08-05 | 漳州市龙文翰苑化工有限公司 | Novel polyformaldehyde depolymerization method |
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