http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103159629-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2832a40f112f92bf8d7655e3809f5815 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C209-86 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C211-10 |
| filingDate | 2011-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2014-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b5f71a75241039b70a78bf2efca41032 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a969d76933f477adb7a5a78844ae73ca http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a05979252753461cc19f143fe91d84e3 |
| publicationDate | 2014-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-103159629-B |
| titleOfInvention | Separation method for azeotrope of ethylene diamine and water |
| abstract | The application discloses a separation method for an azeotrope of ethylene diamine and water. The separation method comprises the steps of introducing a mixture of ethylene diamine and water into a rectification column for dehydration of ethylene diamine; adding a dehydrating agent to the system, making the dehydrating agent form a low boiling point azeotrope with water but not ethylene diamine by methods of adjusting a position of the mixture feeding port, a position of a refluxing port of the dehydrating agent and a refluxing proportion, and controlling a temperature of the tower, and the like; steaming the low boiling point azeotrope out from the top of the tower and outflowing the dehydrated ethylene diamine from the bottom of the tower. The mass content of water in ethylene diamine is about 1-30%. The separation method is advantageous in that the dehydrated ethylene diamine can meet the requirement indexes of a product. |
| priorityDate | 2011-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.