http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-953389-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c2e66bf3565193fc7c191c8d35230946 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-783 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 |
| filingDate | 1961-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f676e0c6d632f9fceaf75d93f4c30fa7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c590ac0d130fa4f61f6a2f877393e7e9 |
| publicationDate | 1964-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-953389-A |
| titleOfInvention | Process for the production of anhydrous formaldehyde |
| abstract | Anhydrous formaldehyde is obtained from formaldehyde vapours containing less than 10% by weight of water by washing the vapours with a liquid mixture of two components at a temperature of 0-100 DEG C., one component being one or more liquids miscible with water in any proportion and inert to formaldehyde and the other component being one or more liquids which dissolve less than 10% by weight of water and are inert to formaldehyde, and circulating the liquid mixture through a drying agent. The component which dissolves less than 10% of water may be present as a proportion of 5-80% by volume. Liquids which are miscible with water in all proportions are, for example, cyclic ethers, amides, N-alkylated amines and lactones. Suitable liquids which will not dissolve more than 10% of water are saturated and unsaturated aliphatic, cycloaliphatic or aromatic hydrocarbons and hydrocarbon halides, esters, aldehydes, ketones and aliphatic and aromatic ethers. Suitable drying agents are, for example, silica gel, calcium chloride and phosphorus pentoxide. The process is particularly applicable to the treatment of formaldehyde obtained by thermal depolymerisation of formaldehyde polymers. |
| priorityDate | 1961-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.