http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-231944-A3
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b1a8c1642aeb028cc131abb7c9d20817 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B25-30 |
| filingDate | 1983-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a7dc550cdd8e4b22c35bb4fa3e694741 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3412e9bba68e549b60d957cbde60e8c0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f778d842d0f5cdcb670351ce5587ec6a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ba69a481ce96bad9588198ea217c37d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c8e9c6ef553ee1cf239b096219c2dff |
| publicationDate | 1986-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-231944-A3 |
| titleOfInvention | PROCESS FOR PREPARING GROB CRYSTALLINES, IRON-ARMY POTASSIUM DIHYDROGEN PHOSPHATE BY COOLING CRYSTALLIZATION |
| abstract | Process for the preparation of coarsely crystalline, low-iron potassium hydrogen phosphate by cooling crystallization. As starting materials Phophorsaeure and potassium hydroxide are used. The aim of the invention is to produce a coarsely crystalline low-iron KH2PO4, which is particularly suitable as a laboratory and fine chemical or for pharmaceutical purposes. It has now been found that coarsely crystalline, low-iron KH2PO4 can be prepared by Kuehlungskristallisation by a Fe2O5 concentration of not more than 0.01% is maintained in the reaction mixture by selecting appropriate raw materials, the P2O5 concentration to 20 to 28% at a KOH excess is adjusted from 8-13 mol% based on the stoichiometric conversion and at least 6% of the theoretically required amount of ethylenediaminetetraacetate is used to bind the iron. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114920225-A |
| priorityDate | 1983-10-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.