sodium metasilicate anhydrous da sodium metasilicate pentahydrate

sodium metasilicate pentahydrate

Daga cikin nau'o'in sodium metasilicate, wanda aka fi amfani da shi kuma na yau da kullum shine sodium metasilicate pentahydrate. Tsarin kwayoyin halitta na sodium metasilicate pentahydrate crystal yawanci ana rubuta shi azaman na25io3 ・ 5H20, wanda shine ainihin tetrahydrate na sodium dihydrosilicate tare da cations guda biyu, tare da solubility na 50g/100g ruwa (20 ℃) ​​da wurin narkewa na 72 ℃. Sodium metasilicate pentahydrate yana da halaye na gaba ɗaya na sodium silicate da sodium metasilicate, kuma yana da ƙayyadaddun ƙarfin dauri na alli da ions magnesium, musamman ƙarfin ɗauri na ions magnesium ya fi 260 mgco2/g (35 ℃ min). Dangane da tsarin samarwa, ana iya taƙaita sodium metasilicate pentahydrate a cikin nau'i uku: na farko, "hanyar granulation mai ci gaba",

Sodium metasilicate bayani an wuce ta granulation crystallization na'urar zuwa kai tsaye da kuma ci gaba da samar da barbashi na girman da ake bukata. Indexididdigar inganci ta cika buƙatun hg/t2568-94. Bayyanar samfurin yana da nau'in nau'i mai nau'i, tare da babban fari da ruwa mai kyau. samfuri ne mai daraja. Wannan hanya ta dace da samarwa mai girma, amma yana da wuyar ƙwarewa saboda ƙarfin fasaha. Na farko, da "crystallization dehydration Hanyar" da "crystallization crushing Hanyar", "crystallization dehydration Hanyar", kuma aka sani da uwar barasa wurare dabam dabam Hanyar, shi ne don ƙara sodium metasilicate bayani ga crystal iri ko uwa barasa don sanyaya da crystallization, sa'an nan kuma dynamically bushe. da allon bayan rashin ruwa na centrifugal don samun foda da samfuran granular. Wannan hanya tana da wahala ga samar da manyan sikelin, amma bayyanar samfurin da ruwa yana da kyau, kuma alamun jiki da na sinadarai kuma na iya biyan buƙatun hg/t2568-94. "Hanya murkushe crystallization" shine a mayar da hankalin sodium metasilicate bayani zuwa taro da ake bukata, shiryar da mafita zuwa crystallize cikin blocky daskararru ta ƙara crystal tsaba da Additives, maida duk free ruwa zuwa crystalline ruwa, da kuma murkushe m cikin ƙãre kayayyakin. Amfanin wannan hanya shine cewa zuba jarurruka kadan ne, amma lalacewar tsarin crystal yana da mahimmanci, abubuwan da ake bukata don yanayin yanayi da yanayin sarrafawa suna da wuyar gaske, ƙarfin aiki yana da girma, farin samfurin yana da ƙasa. kuma yana da sauƙin sha danshi da agglomerate, Fihirisar jiki da sinadarai gabaɗaya ba za su iya cika buƙatun hg/t2568-94 ba. Yin amfani da samfuran granular ba shi da ƙura, wanda zai iya biyan buƙatun fitarwa: foda da samfuran granular da aka samar ta hanyar hanyoyin biyu suna amfani da babban ƙura, kuma fitarwa yana iyakance.

sodium metasilicate Anhydrous 

Anhydrous sodium metasilicate kwayoyin dabara Na2SiO3, pH darajar ne game da 12.4, narkewa batu ne 1089 ℃, yawa ne.0.8-1.2g/cm3, narkar da kudi a cikin ruwa ne da sauri, kuma vitrification ba zai faru. Anhydrous sodium metasilicate yana da mafi kyawun aikin aikace-aikacen fiye da hydrated sodium metasilicate a wasu filayen. Anhydrous sodium metasilicate yana da nau'i-nau'i iri-iri, babban yanki na musamman da kuma babban darajar sha mai, wanda ke taimakawa wajen kawar da tabon mai. Jimlar alkali da silicon dioxide abun ciki na anhydrous sodium metasilicate shine ≥ 94%. Idan aka kwatanta da hydrated silicon metasilicate, yana inganta dauri iya aiki na Ca da Mg ions, da kuma taka muhimmiyar rawa a inganta tausasawa da wuya ruwa, daidaitawa da kuma tabbatar da pH darajar, inganta aikin surfactants, inganta decontamination, tarwatsa da eluted datti. da kuma kiyaye tsari mai kyau na foda. Anhydrous sodium metasilicate ba zai haifar da ruwan kristal ba, kuma yana nuna daidaituwa na musamman da kwanciyar hankali ga chlorine na halitta, peroxide da bleaching synergist a cikin wanka. Tasirin taimakon wanka yana da kyau sosai fiye da hydrated silicon metasilicate da 4A zeolite. Dangane da ƙarfin ƙarfi na anhydrous sodium metasilicate don chelate magnesium ions da 4A zeolite don chelate ions alli, biyun suna da fa'idodi masu dacewa a cikin abubuwan da ke cikin sodium metasilicate-4a zeolite binary additives, waɗanda ke da isassun ikon chelating na alli da magnesium ions, kuma suna da kyau kwarai. aiki a cikin tasirin synergistic na surfactants. Wanke foda masana'antun za su ƙara wani babban adadin anhydrous sodium metasilicate

Filin aikace-aikace na anhydrous sodium metasilicate da hydrated sodium metasilicate intersect, amma a cikin filayen kula da crystal ruwa, anhydrous silicon metasilicate za a zabi a maimakon hydrated silicon.