Suavai ma mea le mama o loʻo i totonu o solvents o mea le lelei ia i faiga faʻapisinisi, ma e manaʻomia ona aveese e le zeolite molecular sieves, lea e taʻua o le solvent drying poʻo le solvent treating. Faatasi ai ma o latou puʻa saʻo ma le mautu o vailaʻau, o sieves molecular ua avea ma mea e le mafai ona suia ma sili ona lelei mo le togafitia o solvent, aemaise lava ile vailaʻau lelei ma falemaʻi.
Fa'afitauli masani I Togafitiga Solvent
E masani ona iai i totonu o so'o fa'agaoioi mea leaga, e pei o le tele o vai (sili ona taatele ma sili ona a'afia), mea fa'asuka po'o alkaline, mea fa'alela'au, ma kasa le mama (carbon dioxide, nitrogen, ma hydrocarbons) fa'afeiloa'i pe a mae'a le toe fa'aleleia, ma isi.
O a'afiaga o nei vai ma mea leaga i faiga fa'apisinisi e aofia ai (ae le fa'atapula'aina i): fa'alavelave i gaioiga fa'ama'i, fa'aleagaina mea totino, fa'atupu ai le si'osi'omaga ma le soifua maloloina. E tatau la ona ave'ese ina ia fa'amalieina mana'oga fa'agaioiga, ma puipuia ai fa'aletonu i le tulaga lelei o oloa ma le toe fa'aaogaina o solvent.
Aisea e le mafai ai ona suitulaga molecular sieve?
Lelei: Molecular sieves o loʻo i ai le maualuga maualuga o le adsorption ma le adsorption rate, e mafai ai ona latou aveese lelei le vai mai solvents i totonu o se taimi puupuu, ma faʻaleleia atili ai le faʻamagoina lelei.
Filifiliga: Sieves molecular filifili fa'a'a'ai molela'au le mama e aunoa ma le afaina tele o isi vaega i le solvent. O lenei mea totino adsorption filifilia e maua ai mole mole sieves tulaga lelei i faiga solvent togafiti.
Tulaga mautu: I le avea ai o se mea e sili atu ona lelei, o sieves molecular e faʻaalia ai le maualuga o le vevela ma le mautu o vailaʻau, ma e mafai ona faʻamautu le faʻatinoga o le adsorption i lalo o tulaga faʻaogaina ma tulaga kinetic.
Toe fa'afouina: Molecular sieves o se mea e fa'afeiloa'i ai le si'osi'omaga, ma e mafai ona toe fa'afo'isia le fa'atinoga o le fa'aleleia e ala i le toe fa'afouina, fa'ataga mo le toe fa'aaogaina ma fa'aitiitia ai le tau o le tamaoaiga.
Sieves Molecular Mo Solvent Togafitiga
Ituaiga 3A Zeolite Molecular Sieve: E fetaui lelei mo le faʻagogoina o mea faʻamago polar mole laiti e pei o le ethanol, methanol, acetone, DMF, THF, ma isi. E mafai foi ona faʻaaogaina mo le faʻamagoina o solvents e pei o le acetonitrile ma le 2-propanol.
Ituaiga 4A Zeolite Molecular Sieve: Ose vaila'au masani ona fa'aoga ma taugofie-ma malosi e fa'afefete ai. E fetaui lelei mo le faʻamagoina o soluse polar e pei ole chloroform, dichloromethane, eter, ethane ma isi.
Ituaiga 5A Zeolite Molecular Sieve: E mafai ona mitiia vai, carbon dioxide, hydrogen sulfide, ma molelaʻau laiti e pei ole alkanes laina. E fetaui lelei mo le togafitia o solvents fefiloi, aveese mea leaga polar, ma vavaeeseina hydrocarbons.
Ituaiga 13x Zeolite Molecular Sieve: E lapopo'a le pore ma maualuga atu le malosi o le adsorption, ma e talafeagai mo togafitiga polar ma non{0}}polar solvent. E masani ona faʻaaogaina mo le aveeseina o vai ma mea leaga mai solvents e pei o mea manogi ma alkanes.