Kaolin ndi mtundu wa mchere sanali zitsulo, makamaka wopangidwa ndi kaolinite, mica. Wopangidwa ndi feldspar yotsalira ndi quartz, ndi dongo ndi thanthwe ladongo lolamulidwa ndi mchere wa dongo wa kaolinite. The zikuchokera waukulu wa kaolin makamaka silicate mchere munali zotayidwa. Tinthu tating'onoting'ono ndi toyera. Nanga bwanji mafakitalesodium hexametaphosphatekuwonjezeredwa pamene slurry ndi desanted?
Weathering yotsalira kaolin gawo ndi mtundu waukulu wa kaolin gawo, amene ali mkulu mchenga okhutira. Nthawi zambiri, ndikofunikira kuchotsa mchenga ndikusunga dothi momwemo mukamagwiritsa ntchito. Kugwiritsa ntchito mafakitale a sodium h6-metaphosphate ngati dispersant kumatha kukhala ndi gawo labwino pakulekanitsa dothi ndi mchenga ndikupewa kuwononga chuma.
Pakali pano, ndondomeko kuchotsa mchenga zambiri utenga njira slurry desanding, kuwonjezera dispersant kwa slurry, kotero kuti dothi ndi mchenga mu kaolin ore akhoza kulekanitsidwa mwamsanga ndi efficiently. Mchenga umachotsedwa ndi mphamvu yokoka, ndipo kaolin slurry amapezeka. The dissperant makamaka ntchito ndi mafakitalesodium hexametaphosphatechifukwa mafakitalesodium hexametaphosphatekulekana zotsatira zabwino.
Njira zenizeni zogwiritsira ntchito mafakitalesodium hexametaphosphatekuchotsa mchenga ku kaolin slurry ndi motere:
1. Kukonzekera slurry: kaolin yaiwisi ore wothira madzi, kuwonjezera alkali njira kusintha pH mtengo, kaolin slurry;
2 Kukonzekera kwa dispersant: mafakitalesodium hexametaphosphatendi sodium silicate anawonjezera madzi, kusakaniza kupeza pawiri dispersant;
3. Slurry: kugwiritsa ntchito mafakitalesodium hexametaphosphatepawiri dispersant anawonjezera kaolin slurry, pambuyo kusakaniza slurry;
4. Kuchotsa mchenga: mchenga wa quartz mu zamkati wobalalika umachotsedwa pansi pa mphamvu yokoka, ndipo zamkati za kaolin pambuyo pochotsa mchenga zimapezedwa.
The mafakitalesodium hexametaphosphateopangidwa ndi Shandong Jufu Chemical Technology Co., Ltd.
Nthawi yotumiza: Jul-11-2022
