http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107955035-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2040-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2223-045 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07F9-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M137-10 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10N40-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07F9-17 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10M137-10 |
| filingDate | 2017-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2019-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2019-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107955035-B |
| titleOfInvention | preparation method of diisooctyl dithiophosphate additive for hydraulic oil |
| abstract | The invention discloses a preparation method of a diisooctyl dithiophosphate additive for hydraulic oil, which comprises the following steps: adding excessive phosphorus pentasulfide with the weight proportion of 27.6-27.8 percent; dropwise adding isooctyl alcohol with required amount; keeping the temperature of the flask at 95 ℃ until the reaction is complete; filtering out solid phosphorus pentasulfide; adding excessive zinc oxide; adding the prepared sulfuric-phosphoric acid; keeping the temperature of the flask at 100 ℃ for about 1 hour, vacuumizing and distilling under reduced pressure; filtering the reagent to prepare diisooctyl dithiophosphate; wherein, the zinc oxide comprises 25 to 30 percent of direct method zinc oxide and 70 to 75 percent of indirect method zinc oxide, and the excess range of the zinc oxide is 5 to 8 percent. The diisooctyl dithiophosphate additive prepared by the technical scheme of the invention is used in hydraulic oil, so that the water separation performance is obviously improved, the production process is simpler, the consumption of zinc oxide is reduced, the application of a catalyst is omitted, the treatment of later-stage wastes is reduced, and the production cost is obviously reduced. |
| priorityDate | 2017-12-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.