http://rdf.ncbi.nlm.nih.gov/pubchem/patent/SE-7708205-L
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5c24684033fba97d1ad845ce453a57e3 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B25-006 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-023 |
| filingDate | 1977-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_845eb3bd7fe42b71d6d3fab30cf0f751 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fe8f43cdf6132838170b52c60f371839 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_678d62a6f076b8a71bd45aac840fb0be http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39103bb671d3679ca89a281f891fb606 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9bc68085c26706328bc21beea65f5190 |
| publicationDate | 1978-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | SE-7708205-L |
| titleOfInvention | STABILIZED FOR PHOSPHORUS AND SET FOR ITS PREPARATION |
| abstract | 1519929 Red phosphorus HOECHST AG 27 May 1977 [17 July 1976] 22500/77 Heading C1A Stabilized pulverulent red phosphorus comprises a homogeneous blend of red phosphorus particles with a size of at most about 2mm and as an oxidation stabilizer a metal compound of the second or third group of the Periodic System, the metal compound being the aluminium, magnesium, calcium or zinc salt of an alkyl-, cycloalkyl-, aryl- or aralkyl-phosphonic acid having 1 to 20 carbon atoms, the metal compound being present in the homogeneous blend in a proportion of 0À5 to 5 weight per cent. Red phosphorus particles may-be intimately blended with 0À5 to 5 weight per cent, based on red phosphorus, of an alkyl-, cycloalkyl-, aryl- or aralkyl-phosphonic acid having 1 to 20 carbon atoms; the blend suspended in water and the suspension heated to 60 to 95‹ C.; the suspension gradually admixed with at least stoichiometric proportions of an aqueous solution of a water-soluble aluminium, magnesium, calcium or zinc salt to cause precipitation of the respective phosphoric acid salt from the aqueous suspension at a pH of 3À0 to 6À0 and preferably at a temperature of from 80 to 90‹ C.; the resulting mixture filtered, and the filter residue dried at elevated temperature, suitably at 80 to 130‹ C., and if desired, under reduced pressure. Preferred water-soluble salts are Al 2 (SO 4 ) 3 .18H 2 O, Ca(NO 3 ) 2 .4H 2 O, ZnSO 4 .7H 2 O and MgSO 4 .7H 2 O, which may be used in the form of 5 to 20 weight per cent aqueous solutions. The aluminium salt is suitably precipitated at pH 3À0 to 3À5 and the salts of the other metals at pH 5À0 to 6À0. |
| priorityDate | 1976-07-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.