http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20150036023-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-82 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-84 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C37-72 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C37-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C39-04 |
| filingDate | 2013-07-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2015-04-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20150036023-A |
| titleOfInvention | Method for producing bisphenol a |
| abstract | The present invention relates to a process for producing bisphenol A, comprising the steps of: (1) condensing phenol with acetone using a reactor packed with a strongly acidic cation-exchange resin catalyst partially modified with a sulfur-containing amine compound to produce bisphenol A to obtain a reaction mixture containing bisphenol A (2) separating the low-boiling point component from the reaction mixture to prepare a crystallite raw material containing concentrated bisphenol A, (3) cooling the crystallite raw material to crystallize adducts of bisphenol A and phenol, A process for producing bisphenol A having a step of producing a crystalline solid of an adduct with phenol and separating the crystalline product from a reaction mixture, and (4) removing phenol from the crystalline product to recover bisphenol A R1) Water and phenol are separated from the wastewater containing phenol generated in the process of producing bisphenol A by using methyl isobutyl ketone, And a step of distilling and purifying (R2) crude phenol to obtain a phenol having a sulfur concentration of 0.5 mass ppm or less and a nitrogen concentration of 0.1 mass ppm or less, wherein the phenol obtained in the step (R2) ) To (4). The present invention also provides a process for producing bisphenol A which is recycled in at least one of the above processes (1) to (4). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20190060430-A |
| priorityDate | 2012-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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