http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2415123-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b27ebfe4c1e4fabdf646dc9814f2f780 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c1a0fe5da91186fc3a1fdd768db6b392 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-107 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-02 |
| filingDate | 2009-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e93114d0a0a3c0598714a016874a23ea http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea324ca4eb1f7a5fb53e62cf9b01e38a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f0b295233836d8af9c45e7a0c762f8d4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bb0a3fb57f6f174817153b7992b80d84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3ac08628362c87a4824bfb967412e597 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eae9a92057be36d30a4c5aea550f649e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c652e4b902883b3b16b346d21e67c4f7 |
| publicationDate | 2011-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2415123-C1 |
| titleOfInvention | Method of producing 2-isopropyl-p-xylene and 2,5-diisopropyl-p-xylene |
| abstract | FIELD: chemistry. ^ SUBSTANCE: invention relates to a method of producing 2-isopropyl-p-xylene and 2,5-diisopropyl-p-xylene through alkylation of p-xylene with propylene in liquid phase, characterised by that p-xylene undergoes alkylation at temperature 70-90C, and at the first step alkylation is carried out in the presence of a AlCl3 catalyst until achieving 40-90% conversion of the initial hydrocarbon and accumulation of 30-50% mono-isopropyl-p-xylene in the alkylate. Further, 5-mono-isopropyl-p-xylene undergoes alkylation at the second step in the presence of AlCl2H2PO4 such that, after achieving total content of isomers 2,5-, 2,3-, 2,6-di-isopropyl-p-xylene of 30-50% in the alkylate, supply of propylene is cut and the obtained alkylate is held at temperature 70-90C for 2-6 hours until achieving at least 95% concentration of 2,5-di-isopropyl-p-xylene and then extracting the end product using known techniques. ^ EFFECT: engineering solution simplifies production of mono-isopropyl-p-xylene and 2,5-diisopropyl-p-xylene and increases output of end products. ^ 1 cl, 7 ex, 1 tbl, 1 dwg |
| priorityDate | 2009-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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