| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4b1aa2b8a570e7ceaa83e2a0eae6daea |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-86 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-86
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-16 |
| filingDate |
1998-09-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_28c6061b19e978d09d87496c38114f3d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a967036d07dd391cce786c30615d776
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e9665e8d09aebdc83afbcedc7e35341 |
| publicationDate |
1999-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9920586-A1 |
| titleOfInvention |
Process improvement to produce low color trimethylolpropane |
| abstract |
Disclosed is a process for acquiring crude trimethylolpropane (TMP) of low reacted color. TMP is generally prepared by the condensation of n-butyraldehyde and formaldehyde in an alkali solution. The mixture is then concentrated and placed through an extractor. It has been found that a high concentration of low color TMP is present in the extractor and may be obtained by taking a slip stream of hot organic/water/TMP from the extractor and allowing the mixture to cool and phase separate. Upon separation of the phases, TMP generally having an acid wash color of about or less than 5 GU is recovered from the water phase. Disclosed is use of a single and multistage extractor. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018077515-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102108042-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-3315484-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102108042-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7057080-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2607341-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2341041-A1 |
| priorityDate |
1997-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |