| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d669af06cb2abbcd6823699582a97002 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C409-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C407-003
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C407-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C407-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C409-24 |
| filingDate |
1976-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1977-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95ed4d4af96a6584bb96fc991f10718f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ec259437477f4676baf9e6234472942
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ba2cd292c9c8e934221864f86e1d9194
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0eecf7055777053598a797c1b3f3dcdf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_58efff9addc5517b84a304e63fa6feb6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c07969e8921b60622c9d9df1aa99870d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_19cba99f5bb69d66ce3c1799c3306d64
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_906dc0df8d910c49eb89b77998a2541e |
| publicationDate |
1977-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4059619-A |
| titleOfInvention |
Process for the preparation of percarboxylic acid solutions |
| abstract |
Process for continuous production of substantially anhydrous solutions of perpropionic acid in benzene. Aqueous hydrogen peroxide is first reacted with propionic acid in the presence of acid catalyst to form perpropionic acid and water (1). The perpropionic acid is extracted with benzene (5), to provide a benzene phase containing the perpropionic acid (11) and an aqueous raffinate (7). The benzene phase is subjected to an extraction with water (12) involving at least 3 stages, to remove hydrogen peroxide, and the resulting benzene extract (15) is subjected to azeotropic distillation (26) to provide the anhydrous solution (17). The aqueous raffinate, which contains hydrogen peroxide, is distilled to remove water (8) and the resulting concentrate is recycled (2) for use in the reaction (1). |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4344897-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4849532-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4851556-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4338260-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4855465-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106349140-A |
| priorityDate |
1975-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |