| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d94be1a7eb0c016f242c498ce807392
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_efb5c776bc077a18e0e01433f82aba01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ba10f882a347602cac65ced0d60d6fed
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7788c989b6f160879f3a9d6c1cf0c1f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_97ef4ac1228cfd4e7891ca6e941558c8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-043 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00 |
| filingDate |
2011-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1c41b96c8a16bedebb8ad5e0976f6344
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6aa78ac532768005c12f5d00183444fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9b070bbb477c5ad942c02bb6f7af3115
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_70dad509f124c8bd7512ee2804c951fa |
| publicationDate |
2014-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8816134-B2 |
| titleOfInvention |
Method for making dimethyl ether by reactive-distillation |
| abstract |
Disclosed is a method for making dimethyl ether by reactive distillation. The method provides a reactive distillation tower with a top, a bottom, and rectification, reaction and stripping zones defined therein. The top of the reactive distillation tower is retained at 25° C. to 40° C. while the bottom of the reactive distillation tower is retained at 84.6° C. to 170° C. Each of the rectification, reaction and stripping zones includes several sieving trays. The reaction zone of the reactive distillation tower is filled with catalyst. The pressure in the reactive distillation tower is lower than 8.0 bars. Methanol is introduced into the reactive distillation tower so that the methanol travels from the reaction zone toward the bottom for contact with the catalyst to provide a top stream and a bottom stream. The top stream includes dimethyl ether. The bottom stream includes water and a remaining portion of the methanol. Finally, the dimethyl ether is collected in the top of the reactive distillation tower. The purity of the collected dimethyl ether is higher than 99%. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104258588-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104258588-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018064539-A1 |
| priorityDate |
2011-03-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |