| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1e70c0aeade92d7571d955d3b90ea06e |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08F6-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C53-126
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K23-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08F6-14 |
| filingDate |
1985-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1987-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8ff184e4a694d8753ce3f21a38d3254c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_008c7e87aed1c4d5ce9fcdab4f5bfe11
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_081da8c3ed030a03bb4b47832a757340 |
| publicationDate |
1987-01-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4639337-A |
| titleOfInvention |
Process for separating surfactants from liquid used in the manufacture of concentrated fluoropolymer dispersions |
| abstract |
A process for separating the ammonium salt of a selected fluoroalkanoic acid and a selected hydrocarbyl oxyethoxylatedpolyether from aqueous dross liquor which comprises: n A. extracting the ammonium salt (in the form of its corresponding acid) and the ethoxylated compound from an acidified aqueous dross liquor by agitating with a selected organic liquid and separating the organic liquid layer, n B. (1) contacting said organic liquid layer with activated alumina, n (2) washing and drying the alumina and contacting it with ammonium hydroxide, n C. boiling the organic liquid obtained in step B1 until the ethoxylated compound remains. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007072985-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2010084343-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2003168405-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009192260-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9212693-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6720437-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008264864-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8466231-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006081535-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8404790-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6972094-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007027251-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7807726-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007025902-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007015937-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006074178-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7795332-B2 |
| priorityDate |
1985-03-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |