http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-191300940-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50b3a639fa23a0a9423e8aa94900721c |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B3-25 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B3-25 |
| filingDate | 1913-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1913-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1913-04-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-191300940-A |
| titleOfInvention | Manufacture and Production of 1 3-butyleneglycol. |
| abstract | 940. Farbenfabriken vorm. F. Bayer & Co. March 16, 1912, [Convention date]. 1 : 3 - Butyleneglycol, obtaining. - Aldol is reduced electrolytically. In an example, 160 parts of acetaldehyde are mixed first with ice and 40 parts of water and then with 2À5 parts of potash dissolved in 25 parts of water. The mixture is stirred for 14 hours at 10 C., and the aldol solution thus obtained is acidified with sulphuric acid of 25 per cent strength and then made up to 750 parts with similar acid. After treatment for 24 hours in the cathode compartment of a cell, with a current density at the leaden cathode of 2 amperes per square decimetre, the liquid is neutralized with chalk, filtered, and fractionally distilled. The yield of 1:3-butyleneglycol is more than 50 per cent of the theoretical, and more than 30 per cent of the original aldehyde is recovered as ethyl alcohol and may be re-oxidized. Specification 17,259/11, [Class 2(iii), Dyes &c.], is referred to. |
| priorityDate | 1912-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.