http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2330006-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c6daea1888e5ec41fe9e09a44e8d786b |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-18 |
| filingDate | 2007-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_286444b32c84ee0c89713de1b836399b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_20b0843eac42dcb274e5944978fd0d06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_892056036a9be68e2c9b76987f729312 |
| publicationDate | 2008-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2330006-C1 |
| titleOfInvention | Method of obtaining isoprene |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to the method of obtaining isoprene from isobutylene or isobutylene containing hydrocarbons and/or trimethyl-carbinol, and formaldehyde, also it is carried out in at least two reaction zones at elevated temperatures and pressure in the presence of an acidic catalyst, which includes a derivative of phosphonic acid, and that is characterised by the fact that the temperature in the first reaction zone is 80-100°C, the molar ratio of formaldehyde to isobutylene and/or trimethyl-carbinol is 1:3÷5, and a catalyst used is the catalyst which has a mineral and/or organic acid base, which in addition contains the bonds tetramethylpiperidine with the general formula: , where R 1 -O or H; R 2 -H, or O, or OH, or the mixture of such bonds with a mass ratio of the mineral and/or organic acids, derivative of phosphonic acid and the bond of tetramethylpiperidine of a mixture of such bonds composing 1:0,01÷0,2:0,01÷0,2. n EFFECT: reduced formation of resin and by-products; increased yield of isoprene. n 2 cl, 8 ex |
| priorityDate | 2007-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 37.