http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104592172-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D305-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D305-12 |
| filingDate | 2015-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2016-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2016-11-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104592172-B |
| titleOfInvention | Ketene dimer preparation facilities and preparation method |
| abstract | The present invention relates to ketene dimer preparation facilities and preparation method.A kind of ketene dimer preparation facilities, including acetate evaporator, blender, pyrolysis furnace, chilling condenser and absorption tower.The outlet of acetate evaporator and blender connects pyrolysis furnace, connecting multistage chilling condenser after pyrolysis furnace, connect absorption tower after chilling condenser, absorption tower one branch road connects polymerization tank, another branch road connects water absorption tower, and third level chilling condensator outlet connects chilling condenser below by liquid rotary pump.The invention has the beneficial effects as follows: when cracking gas is pressurized, in cracking gas, the impurity such as acetic acid, water and acetic anhydride more can fully be condensed out, and while reducing freezing rank, improves the quality of cracking gas before absorption towerï¼›Accounting for employing traditional handicraft energy consumption compared with the 45% of ketene dimer totle drilling cost, after the present invention improves, energy consumption only accounts for the 25% of ketene dimer totle drilling cost. |
| priorityDate | 2015-01-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 24.