http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20000041659-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1acdb01ac5afc30bfc294f44c88c9538 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_160494dd050ef58528168a9b2f7373c9 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01F5-40 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F5-40 |
| filingDate | 1998-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e4357095fce768a4516dddb42253f04c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfed0d9bff364eafccbbf8754cb82080 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_683162e2fc86350f036aacee341dce3e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c908f9caa5f79e5de75fc131648f210 |
| publicationDate | 2000-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-20000041659-A |
| titleOfInvention | Method for preparing magnesium sulfate aqueous solution from magnesia chromium waste refractory |
| abstract | The present invention relates to a method for producing an aqueous solution of MgSO 4 from magnesia chromium waste refractories,n n n In preparing an aqueous solution of MgSO 4 using magnesia-chromium waste refractory, the waste refractory is pulverized to a 100% mesh content and reacted with sulfuric acid diluted to a concentration of 10-30% to free MgO in waste refractory. Elution was carried out to dissolve the metal iron component with divalent iron ions, hexavalent chromium, and then filtered to separate the residue. Hydrogen peroxide solution was added to the remaining reaction solution to convert the divalent iron ion into Fe (OH) 3. The reaction solution was neutralized to pH 7-8 by adding Mg (OH) 2 , and then treated in the form of Cr (OH) 3 , and the produced sludge was filtered to prepare an aqueous solution of MgSO 4 .n n n According to the above, by using the magnesia-chromium waste refractory, which is mostly disposed of, MgSO 4 aqueous solution can be used to effectively utilize free MgO powder, and the residue separated during the reaction can increase the hot load strength during regeneration refractory preparation. Since it does not lower, it can be recycled as a refractory raw material. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100908852-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20210066118-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20210066122-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20020052829-A |
| priorityDate | 1998-12-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.