| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_63106dcdac359d6b32e661cfc564a5d0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ddac65606de3b966e6f33acf1f1407c8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_34f591da8011c786e4e28acffffa3582 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10G33-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-331
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-28 |
| filingDate |
2012-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b6d87b47dde4b38c153ac8503cb9cbda
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d55930af70f8f95e23f0ffd68430d3e5
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ce8143d83d071d9ac1aad2852775c701
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8678d7528a45fbfc6ca663f72cb8e439
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0874e0983c03cd1db45aabd03bfb7838
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f351d12232f763a292b302a4735b578d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2b6c3a28f722ba1644ec1eb928b660bc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19f47ee0c9a11030a771a696a51dfe80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25919d09b01a564efaa8b7b0de21242f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e8dc67cd602066928dfbf8f37dc8d692
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5a3dc2750add995bcb4eb8bf8c7de359 |
| publicationDate |
2014-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-102925204-B |
| titleOfInvention |
Foam combination flooding produced liquid demulsifier and preparation method thereof |
| abstract |
The invention discloses a foam flooding produced liquid demulsifier which is a non-ionic polyether demulsifier and is characterized in that the demulsifier is prepared by three steps: phenolic resin serving as an initiator firstly reacts with epoxypropane in the presence of an alkaline compound serving as a catalyst to obtain a propoxylated polyether compound; the propoxylated polyether compound performs addition reaction with ethylene oxide under the effect of an alkaline catalyst to form an intermediate; and the intermediate reacts with epoxypropane, wherein in the reaction formula of each step, the alkaline compound is sodium hydroxide, potassium hydroxide or sodium ethoxide; in the three steps of reaction for preparing the demulsifier, the mass ratio of the phenolic resin to alkaline compound to epoxypropane in the first step of reaction is (20-30):(0.05-0.15):(50-90); the mass ratio of the propoxylated polyether compound to alkaline compound to ethylene oxide in the second step of reaction is (20-35):(0.1-0.45):(70-160); and the mass ratio of the intermediate to alkaline compound to epoxypropane in the third step of reaction is (20-30):(0.05-0.15):(50-90). |
| priorityDate |
2012-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |