http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-421556-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f37b0b52fb4b5bf13a038e922eb0e52f |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G65-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G65-30 |
| filingDate | 1973-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1976-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | ES-421556-A1 |
| titleOfInvention | PROCEDURE FOR THE ELIMINATION OF CATALYSTS USED-TWO IN THE OXYALQUENYLATION OF HYDROXY COMPOUNDS. |
| abstract | Procedure for the removal of catalysts used in the oxyalkenylation of hydroxy compounds, characterized in that the addition products obtained from alkenyl oxides and/or epihalohydrin in the presence of H3PO4, AlCl3, FeCl3, SnCl4 are treated by means of sodium, potassium alcoholate or aluminum, more preferably with sodium methylate or with sodium ethylate, in stoichiometric amounts in relation to the catalyst and the water contained in the addition product, up to a pH value of 6.5 7.5, neutralization being carried out at a temperature 60-90ºc, because preferably neutralizing acid compounds pc13, pc15, POCl3, SOCl2, S2C12, S0C12, S02/0H/C1, C0C12 or compounds containing corresponding substituents of bromine, acetic acid anhydride, dimethylsulfate, sodium salt are applied or potassium salt of acid dimethyl sulfate, in inert solvents, when KOH, NaOH, Sr/0H/2, intro were used as alkaline catalysts in the addition process the neutralizing medium being reduced in the reaction medium until the pH value reaches 6.5 - 7.5 and the water contained in the addition product is completely bound, and because the inorganic salt formed is then filtered in the presence of a decolorizing medium in an amount of 0.5-1.5% by weight in proportion to the filtrate and centrifuged, and then the volatile compounds such as methyl alcohol, ethyl alcohol, acetic acid or S02 are separated by distillation at a temperature of 60 - 90ºC and the product stabilizes. (Machine-translation by Google Translate, not legally binding) |
| priorityDate | 1972-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.