http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RO-111189-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ef9d5eea7f3562f3712b76d7e1722552 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D207-12 |
| filingDate | 1995-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_24b720061559978d1a0de57224edb292 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_31bb67edbf5ef0d443b4f1cec69fc96c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0b2922f67d3fd7b0d167cb726ca6c638 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6c9f0548b7de4140e6ff35e3f2a865c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8ba156600265e166f7bb7d4ca4a4a2a |
| publicationDate | 1996-07-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RO-111189-B1 |
| titleOfInvention | PREPARATION FOR N-METHYLPIROLIDONE |
| abstract | The invention relates to ana process for the manufacture of N-methylpyrrolidone,nused as a solvent in mass productionnplastics, various resins and varnishes, fornpolyamide filamentation, in the paint industry andnpigments and with high separation yieldsnin selective absorption processes, anhydrocarbons as selective solvent. Synthesis of N-methylpyrrolidonentakes place in two phases, namely:nthe amidation phase is carried outnmolar gamma-butyrolactone: monoethanol aminen: water 1: 1.2: 2.1, at a volumetric speednranging between 0.075 and 0.085 h'1 with onpressure of 0.5 ... 2 x 104 x N / m2 andntemperature 40 ... 50 ° C; in the second phase anthe process involves cyclization of hydroxy-N-methylbutyramiden280 ... 290 ° C and pressurenof 90 ... 100 x 104 x N / m2 at a speednvolumetric mass of the reaction mass of 0.38 ... 0.40nh-1. The process ensures a total conversion ofngamma-butyrolactone at a yield of 88% andna purity of over 98.8% of the finished product. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8501963-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6670483-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7199250-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6706893-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7674916-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6603021-B2 |
| priorityDate | 1995-08-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 36.