sodium metasilicate anhydrous kunye neSodium metasilicate pentahydrate

Isodiyam metasilicate pentahydrate

Phakathi kweentlobo ze-sodium metasilicate, eyona isetyenziswa kakhulu kwaye iqhelekileyo yi-sodium metasilicate pentahydrate. I-molecular formula ye-sodium metasilicate pentahydrate crystal idla ngokubhalwa njenge-na25io3 ・ 5H20, eneneni i-tetrahydrate ye-sodium dihydrosilicate ene-cations ezimbini, kunye ne-solubility ye-50g / 100g yamanzi (20 ℃) ​​kunye nendawo yokunyibilika ye-72 ℃. I-sodium metasilicate pentahydrate ineempawu eziqhelekileyo ze-sodium silicate kunye ne-sodium metasilicate, kwaye inomthamo othile wokubopha i-calcium kunye ne-ion ye-magnesium, ngakumbi amandla okubopha i-ion ye-magnesium inkulu kune-260 mg mgco2 / g (35 ℃ min). Ngokwenkqubo yokuvelisa, i-sodium metasilicate pentahydrate inokushwankathelwa ngeendlela ezintathu: okokuqala, "indlela eqhubekayo ye-granulation",

Isisombululo se-sodium metasilicate sidluliswa kwisixhobo se-crystallization ye-granulation ukuvelisa ngokuthe ngqo kwaye ngokuqhubekayo ukuvelisa amaqhekeza obungakanani obufunekayo. Isalathisi somgangatho sihlangabezana neemfuno zomgangatho we-hg/t2568-94. Ukubonakala kwemveliso ngamasuntswana angama-spherical, anobumhlophe obuphezulu kunye nolwelo oluhle. Yimveliso ephezulu. Le ndlela ifanelekile kwimveliso emikhulu, kodwa kunzima ukuyiqonda ngenxa yobugcisa bayo obuqinileyo. Okokuqala, "icrystallization dehydration method" kunye ne "crystallization crushing method", "crystallization dehydration method", ekwaziwa ngokuba yindlela yokuhanjiswa kotywala komama, kukongeza isisombululo se-sodium metasilicate kwimbewu yekristale okanye kotywala bukamama ukupholisa kunye necrystallization, emva koko yome ngamandla. kunye nesikrini emva kokuchithwa kwe-centrifugal ukufumana umgubo kunye neemveliso zegranular. Le ndlela inzima kwimveliso enkulu, kodwa imbonakalo yemveliso kunye nobuninzi be-fluidity ilungile, kwaye izikhombisi zomzimba kunye neekhemikhali zinokuhlangabezana neemfuno zomgangatho we-hg / t2568-94. "I-Crystallization crushing method" kukugxininisa isisombululo se-sodium ye-metasilicate kwi-concentration efunekayo, isikhokelo kwisisombululo se-crystallize kwi-blocky solids ngokudibanisa imbewu ye-crystal kunye ne-additives, ukuguqula onke amanzi asimahla kumanzi e-crystalline, kwaye utyumze ukuqina kwiimveliso ezigqityiweyo. Iingenelo zale ndlela kukuba utyalo-mali luncinci, kodwa umonakalo kwisakhiwo sekristale sinzima kakhulu, iimfuno zokusingqongileyo kwemozulu kunye neemeko zokulawula zinobunzima, ubuninzi bomsebenzi buphezulu, ubumhlophe bemveliso buphantsi, kwaye kulula ukufunxa ukufuma kunye ne-agglomerate, Izalathisi zomzimba kunye neekhemikhali ngokubanzi azikwazi ukuhlangabezana neemfuno zomgangatho we-hg/t2568-94. Ukusetyenziswa kweemveliso zegranular aluthuli, olunokuthi luhlangabezane neemfuno zokuthumela ngaphandle: umgubo kunye neemveliso zegranular eziveliswa ngeendlela ezimbini zokugqibela zisebenzisa uthuli olukhulu, kwaye ukuthunyelwa kwamanye amazwe kulinganiselwe.

sodium metasilicate Anhydrous 

I-anhydrous sodium metasilicate i-molecular formula Na2SiO3, ixabiso le-pH li malunga ne-12.4, indawo yokunyibilika yi-1089 ℃, ubuninzi be-0.8-1.2g / cm3, isantya sokuchithwa kwamanzi ngokukhawuleza, kwaye i-vitrification ayiyi kwenzeka. I-Anhydrous sodium metasilicate inokusebenza okungcono kwesicelo kune-hydrated sodium metasilicate kwezinye iindawo. I-Anhydrous sodium metasilicate inamasuntswana afanayo, indawo enkulu yendawo ethile kunye nexabiso eliphezulu lokufunxa ioli, elinceda ekususeni amabala e-oyile. I-alkali epheleleyo kunye ne-silicon dioxide umxholo we-anhydrous sodium metasilicate yi-≥ 94%. Xa kuthelekiswa ne-hydrated silicon metasilicate, iphucula amandla okubopha i-Ca kunye ne-Mg ion, kwaye idlala indima ebalulekileyo ekukhuthazeni ukuthambisa kwamanzi anzima, ukulungelelanisa kunye nokuzinzisa ixabiso le-pH, ukuphucula ukusebenza kwe-surfactants, ukuphucula ukuchithwa, ukusabalalisa ukungcola okukhutshiweyo, kunye nokugcina isakhiwo esilungileyo somgubo. I-metasilicate ye-sodium e-anhydrous ayiyi kumisa amanzi e-crystal, kwaye ibonisa ukuhambelana okukhethekileyo kunye nokuzinza kwi-organic chlorine, i-peroxide kunye ne-bleaching synergist kwi-detergent. Isiphumo sokuncedisa ukuhlamba singcono kakhulu kune-hydrated silicon metasilicate kunye ne-4A zeolite. Ngokusekwe kwisakhono esomeleleyo se-anhydrous sodium metasilicate ye-chelate magnesium ion kunye ne-4A zeolite kwi-chelate calcium ion, ezi zimbini zineengenelo ezihambelanayo kwi-anhydrous sodium metasilicate-4a zeolite izongezo zebinary, ezinekhono elaneleyo lokuhlafuna i-calcium kunye ne-magnesium ion, kwaye zibalaseleyo. ukusebenza kwimpembelelo ye-synergistic yee-surfactants. Abavelisi bepowder yokuhlamba baya kongeza inani elikhulu le-anhydrous sodium metasilicate

Imimandla yesicelo se-anhydrous sodium metasilicate kunye ne-hydrated sodium metasilicate intersect, kodwa kwiindawo ezithintekayo kumanzi ekristale, i-anhydrous silicon metasilicate iya kukhethwa endaweni ye-silicon ye-hydrated.