http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110878005-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C29-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-38 |
| filingDate | 2019-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110878005-B |
| titleOfInvention | Continuous condensation process of trimethylolpropane and ditrimethylolpropane |
| abstract | The invention discloses a continuous condensation process of trimethylolpropane and ditrimethylolpropane, which comprises the following specific steps: adding a formaldehyde solution with the mass percent of 37% into a continuous reaction heat exchanger before feeding, and starting a circulating pump; the n-butyl aldehyde and the formaldehyde are evenly put into a continuous reaction heat exchanger through an aldehyde mixer and alkali and water through an alkali mixer according to the strict proportion; then continuously feeding the materials into a continuous reactor; then continuously feeding the materials into a continuous neutralization reactor; adding formic acid to the continuous neutralization reactor to neutralize residual alkali in the material; and (3) after the neutralization is finished and the condensation reaction is finished, separating and refining the condensation liquid to obtain qualified trimethylolpropane, ditrimethylolpropane and formate. The invention adopts the continuous condensation process to produce the trimethylolpropane and the ditrimethylolpropane condensation liquid, and has the advantages of less equipment investment, large production capacity, low formaldehyde consumption, high ditrimethylolpropane selective yield and the like. |
| priorityDate | 2019-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.