i-sodium metasilicate anhydrous ne-Sodium metasilicate pentahydrate

Sodium metasilicate pentahydrate

Phakathi kwezinhlobonhlobo ze-sodium metasilicate, esetshenziswa kakhulu futhi ejwayelekile i-sodium metasilicate pentahydrate. I-molecular formula ye-sodium metasilicate pentahydrate crystal ivamise ukubhalwa njenge-na25io3 ・ 5H20, empeleni iyi-tetrahydrate ye-sodium dihydrosilicate enama-cations amabili, ne-solubility engama-50g/100g amanzi (20 ℃) ​​nendawo yokuncibilika engu-72 ℃. I-sodium metasilicate pentahydrate inezici ezijwayelekile ze-sodium silicate ne-sodium metasilicate, futhi inamandla athile okubopha ama-ion e-calcium ne-magnesium, ikakhulukazi amandla okubopha ama-ion e-magnesium mkhulu kuno-260 mg mgco2/g (35 ℃ min). Mayelana nenqubo yokukhiqiza, i-sodium metasilicate pentahydrate ingafingqwa ngezindlela ezintathu: okokuqala, "indlela eqhubekayo ye-granulation",

Isixazululo se-sodium metasilicate sidlula kudivayisi ye-granulation crystallization ukukhiqiza ngokuqondile nangokuqhubekayo izinhlayiya zobukhulu obudingekayo. Inkomba yekhwalithi ihlangabezana nezidingo ze-hg/t2568-94 ejwayelekile. Ukubonakala komkhiqizo kuyizinhlayiya eziyindilinga, ezinobumhlophe obuphezulu kanye ne-fluidity enhle. Kungumkhiqizo osezingeni eliphezulu. Le ndlela ilungele ukukhiqizwa okukhulu, kodwa kunzima ukuyiqonda ngenxa yobuchwepheshe bayo obuqinile. Okokuqala, "crystallization dehydration method" kanye "crystallization crushing method", "crystallization dehydration method", eyaziwa nangokuthi indlela yokusabalalisa utshwala komama, iwukwengeza isixazululo se-sodium metasilicate kumbewu yekristalu noma ugologo kamama ukuze uphole futhi ucwebezelise, bese ukoma ngamandla. kanye nesikrini ngemva kokuphelelwa amanzi emzimbeni okumaphakathi ukuze uthole imikhiqizo eyimpuphu neyimbudumbudu. Le ndlela inzima ekukhiqizeni ngezinga elikhulu, kodwa ukubukeka komkhiqizo nokuguquguquka kukuhle uma kuqhathaniswa, futhi izinkomba zomzimba nezekhemikhali nazo zingahlangabezana nezidingo zezinga le-hg/t2568-94. "I-Crystallization crushing method" iwukugxilisa isixazululo se-sodium metasilicate ekugxiliseni okudingekayo, ukuqondisa isisombululo sokucwebezela sibe izinto eziqinile ezivimbayo ngokungeza imbewu yekristalu nezithasiselo, ukuguqula wonke amanzi amahhala abe amanzi acwebile, bese uchoboza okuqinile kube imikhiqizo eqediwe. Izinzuzo zale ndlela ukuthi ukutshalwa kwezimali kuncane, kepha ukulimala kwesakhiwo sekristalu kubi kakhulu, izidingo zemvelo yesimo sezulu nezimo zokulawula zinokhahlo, amandla okusebenza aphakeme, ubumhlophe bomkhiqizo buphansi, futhi kulula ukumunca umswakama kanye ne-agglomerate, Izinkomba zomzimba nezamakhemikhali ngokuvamile azikwazi ukuhlangabezana nezidingo ze-hg/t2568-94 standard. Ukusetshenziswa kwemikhiqizo ye-granular ayinalo uthuli, engahlangabezana nezidingo zokuthekelisa: i-powder nemikhiqizo ye-granular ekhiqizwa izindlela ezimbili zokugcina isebenzisa uthuli olukhulu, futhi ukuthekelisa kunqunyelwe.

sodium metasilicate Anhydrous 

I-anhydrous sodium metasilicate molecular formula Na2SiO3, inani le-pH lilinganiselwa ku-12.4, indawo yokuncibilika ngu-1089 ℃, ukuminyana ngu.0.8-1.2g/cm3, izinga lokuncibilika emanzini liyashesha, futhi i-vitrification ngeke yenzeke. I-anhydrous sodium metasilicate inokusebenza okungcono kwesicelo kune-hydrated sodium metasilicate kwezinye izinkambu. I-anhydrous sodium metasilicate inezinhlayiya ezifanayo, indawo enkulu ethize kanye nenani eliphakeme lokumunca uwoyela, elisiza ekususeni amabala kawoyela. Ingqikithi ye-alkali ne-silicon dioxide okuqukethwe kwe-anhydrous sodium metasilicate ngu-≥ 94%. Uma kuqhathaniswa ne-hydrated silicon metasilicate, ithuthukisa amandla okubopha ama-Ca kanye ne-Mg ions, futhi idlala indima ebalulekile ekukhuthazeni ukuthambisa kwamanzi aqinile, ukulungisa nokusimamisa inani le-pH, ukuthuthukisa ukusebenza kwama-surfactants, ukuthuthukisa ukungcola, ukuhlakaza ukungcola okukhishwe, kanye nokugcina ukwakheka okuhle kwempuphu. I-anhydrous sodium metasilicate ngeke iwandise amanzi ayikristalu, futhi ikhombisa ukuhambisana okukhethekile nokuzinza ku-organic chlorine, peroxide kanye ne-bleaching synergist ku-detergent. Umphumela wokusiza ukuwasha ungcono kakhulu kune-hydrated silicon metasilicate ne-4A zeolite. Ngokusekelwe ekhonweni eliqinile le-anhydrous sodium metasilicate to chelate magnesium ions kanye ne-4A zeolite to chelate calcium ions, laba bobabili banezinzuzo ezihambisanayo ku-anhydrous sodium metasilicate-4a zeolite izithasiselo kanambambili, ezinekhono elanele lokuchela le-calcium ne-magnesium ion, futhi libe nenhle kakhulu. ukusebenza kumphumela we-synergistic wama-surfactants. Abakhiqizi be-powder yokuwasha bazokwengeza inani elikhulu le-sodium metasilicate ene-anhydrous

Izinkambu zokusetshenziswa ze-anhydrous sodium metasilicate kanye ne-hydrated sodium metasilicate metasilicate ziyaphambana, kodwa emikhakheni ezwelayo emanzini e-crystal, i-anhydrous silicon metasilicate izokhethwa esikhundleni se-silicon e-hydrated.