http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2537837-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c85d78c6a4459b5dbbc49c82a4c5c107 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-32 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-12 |
| filingDate | 2009-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c40a7caf8345d0daaa9f247cb7d240b0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c9ed5874c5256c2459fe97bfee287b53 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_46c0fd6d1fe5295c1184e9fa1a73203f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5431c6c78fe38b110ed828e8e0efc16 |
| publicationDate | 2012-12-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-2537837-A1 |
| titleOfInvention | Process and apparatus for producing and purifying epichlorohydrins |
| abstract | A process and apparatus are disclosed for the purification of epichlorohydrin. The process includes distilling and/or fractionating a feed stream containing epichlorohydrin, dichlorohydrin(s), and one or more other substances, subjecting at least a portion of the liquid phase effluent to a dichlorohydrin dehydrochlorination process for converting residual dichlorohydrin(s) in the liquid phase effluent to epichlorohydrin, and recovering purified epichlorohydrin from the vapor phase effluent in which the distillation/fractionation pressure and/or temperature of step (1) is adjusted to retain at least 5 weight-percent epichlorohydrin in the liquid phase effluent and/or the distillation/-fractionation pressure and/or temperature of step (1) is adjusted to satisfy the equation: R □ 100000 □ P 100 □ T k nwherein P represents the distillation pressure of the vapor phase effluent produced by step (1) in Pascal, T k represents the distillation temperature of the liquid phase effluent produced by step (1) in degrees Kelvin, and R represents the number 2.8. The apparatus for making purified epichlorohydrin includes a dehydrochlorination apparatus, a first liquid-vapor contacting apparatus, and a second liquid-vapor contacting apparatus connected to the dehydrochlorination apparatus for recycling a distillate to the dehydrochlorination apparatus. Advantages include more efficient recovery of epichlorohydrins and reduced capital investment in recovery equipment. |
| priorityDate | 2008-02-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 112.