| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_114e4423ec77cbc8dab9d0a98909704e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9f312cfd5c6d11618928f7a922904e15
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f8ef0e54c17c66d38e980714de668034 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J21-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-71
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1038
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-002
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C49-245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-1019
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J37-30 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C49-245
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-71
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-00 |
| filingDate |
2009-03-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0756f3af7490b9d27c9c860e32a0d5ea
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_943827dd76e81f4237ec3f760125ddf7 |
| publicationDate |
2009-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2009118755-A3 |
| titleOfInvention |
Process for the preparation of 4-(4-hydroxyphenyl)but any- one using solid acid clay catalyst |
| abstract |
Solid acid catalyst such as acid activated-Montmorillonite clay composite has been developed by modifying the Na-Montmorillonite clay with acid (HCl) treatment for different periods such as 5 minutes to about 4 hours and activating at about 12O°C for about 2 hours. Friedel Crafts alkylation reaction between phenol and 4-hydroxybutan-2-one in presence of the acid activated Montmorillonite clay catalysts exhibiting layered clay structures (basal spacing d 001 ranging from about 10 to 13.5 Å), high surface area (250 - 400 m 2 /g), highly porous {micropores in the range 5 to 15 Å and mesopores in the range 30 to 80 Å}, average pore volume 0.2 to 0.65 cc/g, and surface acidity in the range 0.4 - 0.6 mmol/g; under constant stirring and at pressure of 1-15 bar, temperature 100 - 15O°C for a period of about 12 - 24 hours produces 4-(4-hydroxyphenyl)butan-2-one (Raspberry ketone) exhibiting conversion about 35 - 55 % and high selectivity in the range 75 - 81 %. |
| priorityDate |
2008-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |