http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001039952-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D239-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D233-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D239-10 |
| filingDate | 2000-06-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bffb87e1ad5730a4b0050e7d6183385f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aee4a1f35d5cb105a4e2161e754876fe http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cf128408c7ec2c0fbf80c8003b655beb http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e74c1c4c5f9fafe12dc092f0bcba73a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5b75ce883a5227028e29e4dfe7e571d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3d97bfb3af75d8dd34ce6edab6d991e |
| publicationDate | 2001-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2001039952-A |
| titleOfInvention | Process for producing N-alkyl-N'-methylalkylene urea substantially free of formic acid |
| abstract | (57) [Summary] (with correction) [PROBLEMS] N-alkyl-N ′ containing substantially no formic acid -To provide a method for producing methyl alkylene urea. [Solution] Expression: [Where R 1 is HCH 3 ; R 2 is C n H 2n + 1 (n = 1 to 4); x represents 0,1]. N-alkyl-N′-methylalkylene urea substantially free of formic acid represented by the formula: is reacted with the corresponding alkylene urea in the presence of formic acid to form monomeric formaldehyde or formaldehyde With N-alkyl-N′- obtained by the reaction. A mixture of methylalkylene urea and formic acid is fed to the upper region of the distillation column and distilled without any addition, and N-alkyl-N'-methylalkylene urea substantially free of formic acid is distilled in the lower region of the distillation column. At that time, the pressure in the upper region of the distillation column was set at a level 10 to 100 mbar higher than that in the lower region, and the temperature in the lower region of the distillation column was set at 4 higher than the upper region. It is characterized in that it is set to a level higher by 0 to 210 ° C. |
| priorityDate | 1999-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.