| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fcfa792f726e4773d7d049970a6de9a2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-20 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-84
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-83 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-83
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-343
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-058
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-84 |
| filingDate |
2002-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9fadc086d1c63e3744d21ec3537e3e30 |
| publicationDate |
2002-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2002134662-A1 |
| titleOfInvention |
Dewatering process |
| abstract |
A process for separating a formaldehyde-containing product from a formalin solution comprising formaldehyde, water and methanol, wherein said formaldehyde-containing product contains substantially less water than said formalin solution, comprising distilling said formalin solution in the presence of a water entraining compound, especially methyl propionate or methyl methacrylate. The formaldehyde-containing product is suitable for use in a further process which requires a source of formaldehyde containing a relatively low level of water. One example of such a process is the reaction of methyl propionate with formaldehyde and methanol over a catalyst to produce methyl methacrylate. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009133437-A1 |
| priorityDate |
1998-06-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |