| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e25c9a20ec728d82c2029125ae317982
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_74973199515dbabd2310245aab03e282 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B09B3-00 |
| filingDate |
1996-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0f27ec06472b9148c7ba3cc0a29491c0
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4d8a2d3f820d7efb5233f62d51dff1a4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dde9386531573d710684f8f35d7eec2b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3867389b68e633bc0b848e39a40ab645
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75ac278bfe238844ef8bf8e381e232df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_faa7ed0f79149fd8f4e6d3253f4039b2 |
| publicationDate |
1998-06-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H10174946-A |
| titleOfInvention |
Mixing method of dust collection ash and drainage and drainage of heavy oil fuel fired boiler |
| abstract |
(57) [Problem] To provide an efficient mixing treatment method of dust ash generated from a dust collector of boiler exhaust gas using heavy oil as fuel and wastewater generated from a flue gas desulfurization device. SOLUTION: Dust ash of boiler exhaust gas and waste water are mixed, a reducing agent is added to reduce pentavalent vanadium to tetravalent vanadium, and magnesium hydroxide and / or ammonia are added to the obtained mixed solution. Water is added to separate the high-concentration vanadium-containing precipitate formed at a pH of 3 to 9, and furthermore, calcium hydroxide or calcium oxide is added to the separated solution to adjust the pH to 9 to 12, and the ammonia water is recovered by distillation. And supplying a slurry containing calcium sulfate as a main component obtained by separating calcium sulfate and magnesium hydroxide in the distillation residue to a wet-type flue gas desulfurization apparatus to collect gypsum. A method of mixing and collecting dust and ash from oil-fired boilers. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-4485257-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100399381-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2005334809-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023123977-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010143270-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108872294-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108872294-B |
| priorityDate |
1996-12-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |