http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101044463-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2253-104 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2253-102 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2253-112 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-442 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-027 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-444 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B5-30 |
| filingDate | 2009-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2011-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2011-06-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101044463-B1 |
| titleOfInvention | Apparatus and method for recycling potassium iodide waste solution in polarizing film manufacturing process |
| abstract | The present invention relates to an apparatus and method for recycling waste potassium iodide in a polarizing film manufacturing process. More specifically, the apparatus for recycling potassium iodide waste solution in a polarizing film manufacturing process is used to impart polarization characteristics to a polarizing film. Potassium iodide waste solution storage tank containing this; A first adsorption unit adsorbing fine particles, inorganic matter and organic matter of the contaminated potassium iodide waste solution by contacting the potassium iodide waste solution supplied from the potassium iodide waste solution storage tank with any one of activated carbon or porous alumina or a mixture thereof; A second adsorption unit which is a boric acid removal adsorption tower for removing boric acid from the waste solution by contacting the potassium iodide waste solution passed through the first adsorption unit with any one of a chelating adsorbent or a selenium-based adsorbent or a mixture of two or more thereof; Polyvinyl alcohol (PVA) separation and removal unit for separating and removing polyvinyl alcohol (PVA) by passing the potassium iodide waste solution passed through the second adsorption unit through an ultrafiltration membrane or a selective filtration membrane of a nanofiltration membrane. ; A solution concentration unit for concentrating the potassium iodide purification solution finally filtered by the polyvinyl alcohol (PVA) separation removing unit using a high pressure pump and a high pressure special filter membrane filter; A solution concentration adjusting tank for adjusting the concentration of the concentrated potassium iodide concentrate solution in the solution concentration unit; And a fine filter for finely filtering the potassium iodide purified solution adjusted in the solution concentration adjusting tank with any one or a mixture of two or more of microfilters, nanofilters, and pore-controlled fibers. Solution recycling apparatus and method. n In the present invention, the boric acid component is removed, the polyvinyl alcohol (PVA) component is separated and removed, and the concentration and purification are reused to raise the concentration of the diluted potassium iodide (KI) solution. The amount of powdered potassium iodide used in large quantities can be reduced by more than 40%, and the manufacturing process of the potassium iodide solution can be simplified to lower the manufacturing cost of the polarizing film. It can be greatly increased. n n Potassium iodide solution, potassium iodide, liquid crystal display device, polarizing film, boric acid, polyvinyl alcohol, concentration, purification, reuse |
| priorityDate | 2009-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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