Ifomula yamakhemikhali: Na5P3O10
Isisindo sama-molecule: 367.86
Izakhiwo: Impuphu emhlophe noma ama-granule, ancibilika kalula emanzini. Ngokwezidingo zokusetshenziswa nokucubungula, singanikeza imikhiqizo yemininingwane ehlukahlukene efana nobuningi obuhlukile obubonakalayo (0.5-0.9g/cm3), ukuncibilika okuhlukile (10g, 20g/100ml wamanzi), i-instant sodium tripolyphosphate, i-large-particle sodium tripolyphosphate, njll.
Ukusetshenziswa:
1. Embonini yokudla, isetshenziswa kakhulu njengokuthuthukisa ikhwalithi yokudla okusemathinini, imikhiqizo yobisi, iziphuzo zejusi yezithelo kanye nobisi lwesoya; isibambi samanzi kanye nesithambisi semikhiqizo yenyama efana ne-ham nenyama yasemini; ingagcina amanzi, ithambise, ikhulise futhi i-bleach ekucutshungulweni kwemikhiqizo yasemanzini; ingathambisa isikhumba sobhontshisi obanzi kumabhontshisi obanzi asemathinini; ingasetshenziswa futhi njengesithambisi samanzi, i-chelating agent, i-PH regulator kanye ne-thickener, kanye nasembonini yobhiya.
2. Emkhakheni wezimboni, isetshenziswa kabanzi kuma-detergents njenge-ejenti yokusiza, i-synergist yensipho kanye nokuvimbela insipho yebha ukuthi ingabi yikristali futhi iqhakaze, i-softener yamanzi yezimboni, i-ejenti yokulungisa isikhumba, i-dyeing assistant, i-oil source udaka, i-oil cleansing agent yokuvimbela ukungcola kwamafutha yokwenza iphepha, i-dispersant ephumelelayo yokwelapha ama-suspensions afana nopende, i-kaolin, i-magnesium oxide, i-calcium carbonate, njll., kanye ne-ceramic degumming agent kanye ne-water reducer embonini ye-ceramic.
Indlela yendabuko yokulungiselela i-sodium polyphosphate iwukuhlanekezela i-hot phosphoric acid ngengxenye enkulu engu-75% H3PO4 nge-soda ash suspension ukuze kutholakale i-slurry engashintshiwe enesilinganiso se-Na/P esingu-5:3, bese uyigcina ifudumele ku-70℃ ~ 90℃; bese ufafaza i-slurry etholakele esithandweni se-polymerization ukuze iphelelwe amanzi ekushiseni okuphezulu, bese uyihlanganisa ne-sodium tripolyphosphate cishe ku-400℃. Le ndlela yendabuko ayidingi nje kuphela i-hot phosphoric acid ebizayo, kodwa futhi idla amandla amaningi okushisa; ngaphezu kwalokho, lapho ulungiselela i-slurry ngokuyihlanekezela, kuyadingeka ukushisa nokususa i-CO2, futhi inqubo iyinkimbinkimbi. Nakuba i-wet phosphoric acid ehlanziwe ngamakhemikhali ingasetshenziswa ukufaka esikhundleni se-hot phosphoric acid ukukhiqiza i-sodium tripolyphosphate, ngenxa yokuqukethwe okuphezulu kwensimbi yensimbi ku-wet phosphoric acid, kunzima ukuhlangabezana nezidingo zekhwalithi zemikhiqizo yamanje ye-sodium tripolyphosphate, futhi kunzima futhi ukuhlangabezana nezinkomba ezichazwe ezindinganisweni zikazwelonke.
Njengamanje, abantu bafunde ezinye izinqubo ezintsha zokukhiqiza i-sodium tripolyphosphate, njengesicelo selungelo lobunikazi laseShayina No. 94110486.9 "Indlela yokukhiqiza i-sodium tripolyphosphate", No. 200310105368.6 "Inqubo entsha yokukhiqiza i-sodium tripolyphosphate", No. 200410040357.9 "Indlela yokukhiqiza i-sodium tripolyphosphate ngendlela ebanzi emanzi eyomile", No. 200510020871.0 "Indlela yokukhiqiza i-sodium tripolyphosphate ngendlela yokubola kabili kasawoti kaGlauber", 200810197998.3 "Indlela yokukhiqiza i-sodium tripolyphosphate kanye ne-ammonium chloride ekhiqiza ngokuyi-by", njll.; yize lezi zixazululo zobuchwepheshe zinezimpawu zazo, eziningi zazo ziwukushintsha izinto zokusetshenziswa zokwenziwa ezingashintshi.
Indlela yokukhiqiza i-sodium tripolyphosphate kusetshenziswa i-sodium pyrophosphate eluhlaza
I-sodium pyrophosphate engahluziwe ingena kuqala ethangini lokuwasha usawoti ukuze isuse iningi le-sodium chloride, bese ingena epuletini kanye nomshini wokucindezela isihlungi sefreyimu ukuze ihlungwe kuqala. Ikhekhe lesihlungi liqukethe inani elikhulu le-sodium pyrophosphate, kanti ukuhlushwa kwe-sodium chloride kungaphansi kuka-2.5%. Bese, isixazululo sishiswa ku-85°C ethangini lokuncibilikisa nge-steam ukuze kuxutshwe futhi kuncibilikiswe. I-sodium sulfide ingezwa ngesikhathi sokuncibilika ukuze kususwe ama-ion ensimbi. Izinto ezingancibiliki ziwukungcola okufana ne-copper hydroxide. Iyahlungwa futhi okwesibili. I-filtrate iyisisombululo se-sodium pyrophosphate. I-activated carbon ifakwa ku-filtrate ukuze kususwe imibala, i-phosphoric acid ifakwa ukuze i-acidify futhi isheshise ukuncibilika, bese ekugcineni i-alkali ewuketshezi ifakwa ukuze kulungiswe inani le-pH libe ngu-7.5-8.5 ukuze kulungiselelwe uketshezi olucwengisisiwe.
Ingxenye yoketshezi olucwengiwe isetshenziswa ngqo esigabeni sokulungiselela uketshezi lwe-sodium tripolyphosphate neutralization, kanti enye ingxenye yoketshezi olucwengiwe iphonswa ku-DTB crystallizer. Uketshezi olucwengiwe ku-DTB crystallizer lupholiswa ku-heat exchanger ngepompo yokujikeleza ephoqelelwe kanye namanzi angu-5°C athunyelwa yi-chiller. Lapho izinga lokushisa lesisombululo lehla laya ku-15°C, luqiniswa lube yi-flocs bese luthuthwa luye ethangini eliphezulu bese lufakwa ku-centrifuge ukuze kuhlukaniswe i-centrifugal ukuze kutholakale amakristalu e-sodium pyrophosphate. Amakristalu e-sodium pyrophosphate anezelwa esigabeni sokulungiselela uketshezi lwe-neutralization enqubweni yokukhiqiza i-sodium tripolyphosphate futhi axutshwe ne-phosphoric acid kanye ne-liquid caustic soda ukulungiselela uketshezi lwe-neutralization njengezinto zokusetshenziswa zokukhiqiza i-sodium tripolyphosphate. I-brine eshiwo ngenhla ibuyiselwa ukugeza i-sodium pyrophosphate engahluziwe; lapho okuqukethwe yi-sodium chloride ku-brine kufinyelela ekugcwaleni, i-brine ifakwa ethangini le-buffer, bese i-brine ethangini le-buffer ifakwa ejakethini le-sodium tripolyphosphate tail gas duct ukuze ishintshaniswe ukushisa ne-tail gas enokushisa okuphezulu. I-brine ngemva kokushintshaniswa kokushisa ibuyela ethangini le-buffer ukuze ifuthwe ngokufutha.
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Isikhathi sokuthunyelwe: Novemba-11-2024