http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-472040-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a12b0be1b74901f556d1d1a9200529ce |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D201-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-195 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D223-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J27-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D201-02 |
| filingDate | 1995-05-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2002-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e482bf9e5121d23500a4d5448bf0ff9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cd319988130fa27a61707a6ddd27853e |
| publicationDate | 2002-01-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-472040-B |
| titleOfInvention | Process for the preparation of caprolactam |
| abstract | The present invention consists of a process for the preparation of caprolactam by vapour phase reaction of 6-aminocapronitrile with water, in the presence of a solid catalyst, at a temperature of between 200 DEG C and 450 DEG C, wherein the molar ratio of the water to the 6-aminocapronitrile introduced is between 0.5 and 50, characterized in that the catalyst is a metal phosphate of general formula (II): MHh(PO4)n.(Imp)p, in which: M denotes a divalent, trivalent, tetravalent or pentavalent element chosen from group consisting of beryllium, magnesium, calcium, strontium, barium, aluminium, boron, gallium, indium, yttrium, lanthanides such as lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium, zirconium, titanium, vanadium, niobium, iron, germanium, tin and bismuth, or a mixture of several of these elements, or M=0, Imp denotes a basic impregnating compound consisting of an alkali metal or alkaline-earth metal or of mixtures of several of these metals, used in combination with a counteranion to ensure electrical neutrality, n denotes 1, 2, or 3, h denotes 0, 1, or 2, p denotes a number between 0 and 1/3 and corresponds to a molar ratio of the impregnating compound Imp and the impregnated compound MHh(PO4)n, and that the catalyst of formula (II) is subjected to a calcination at a temperature of between 300 DEG C and 1000 DEG C. |
| priorityDate | 1993-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 145.