| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c92103de8f275abf2268dc20d34e87b4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_bf2c1e616842d9dc11147301f0845bda
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9df90d7822cc480ce12c480f4089e229
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_799261cbb9b560cca106c27fd2773d99 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-72
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-56
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-64 |
| filingDate |
2001-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3af770174609c1e115321c2ca273be7a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5d239e8731fb6415d5168967face3c6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c4dba10d66c576671f22e9861b7f73f8 |
| publicationDate |
2002-10-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2002292375-A |
| titleOfInvention |
Method for removing ferrous iron contained in water to be treated and chemicals used for it |
| abstract |
PROBLEM TO BE SOLVED: To provide a method for removing iron as insoluble iron with a reduced amount of sludge without making the water to be treated containing divalent iron alkaline, and a chemical used therefor. SOLUTION: In the water to be treated, iron (II) contained in the water to be treated is reacted with an oxidizing agent in the presence of carbonate ions under conditions of pH 3 to 8 to insolubilize the iron (II). A method for removing ferrous iron contained. |
| priorityDate |
2001-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |