Mkpọchi molekụla

Mkpọchi molekul bụ ihe na-amịkọrọ ihe siri ike nke nwere ike ikewapụ molekul dị iche iche nha. Ọ bụ SiO2, Al203 dị ka silicate aluminom kristal nke nwere isi ihe mejupụtara ya. E nwere ọtụtụ oghere nke nha ụfọdụ na kristal ya, enwerekwa ọtụtụ oghere nke otu dayameta n'etiti ha. Ọ nwere ike itinye molekul ndị pere mpe karịa dayameta oghere n'ime oghere ahụ, ma wepụ molekul ndị buru ibu karịa oghere dị n'èzí, na-arụ ọrụ dị ka sieve.

Mkpọchi molekụla nwere ike ịmịkọrọ mmiri nke ọma, a pụkwara iji ihe fọrọ nke nta ka ọ bụrụ ihe mgbaze niile kpọọ ya nkụ, ya mere a na-ejikarị ya eme ihe n'ụlọ nyocha na ụlọ ọrụ mmepụta ihe. Usoro mkpọchi molekụla sieve bụ usoro mkpọchi mmiri nke nwere obere oriri ike na arụmọrụ dị elu, usoro ahụ dị mfe, dabara adaba maka mkpọchi mmiri mmiri na gas miri emi, iji nha nke oghere sieve molekụla nhọrọ mkpọchi mmiri, iji nweta nkewa.

Nkwụsi ike okpomọkụ nke sieve molekul dị mma, nke nwere ike iguzogide obere okpomọkụ dị elu nke 600C ~ 700C, okpomọkụ mmeghari ekwesịghịkwa ịgafe 600C, ma ọ bụghị ya, ọ na-emetụta ọrụ nke sieve molekul, a pụkwara ịpụpụ ya (enweghị mmeghari okpomọkụ). Sieve molekul anaghị agbaze na mmiri, mana ọ na-agbaze na asịd siri ike na alkali, yabụ enwere ike iji ya na pH5 ~ 11. Sieve molekul dị mfe ịmịkọrọ mmiri, a ga-emechi nchekwa ya, ojiji kwesịrị ịlele ma ọdịnaya mmiri gafere ọkọlọtọ, a ga-eji ya chekwaa ruo ogologo oge mmiri, a ga-eji ya mgbe ejiri ya, arụmọrụ ya agbanweghị agbanwe. Sieve molekul nwere njirimara nke ọsọ nnabata ngwa ngwa, ọtụtụ oge mmeghari ohuru, oke ngwepịa na iyi, ike iguzogide mmetọ siri ike, arụmọrụ ojiji dị elu, ogologo ndụ ọrụ, wdg, nke bụ ihe na-ekpo ọkụ kachasị mma maka nkụ gas na mmiri mmiri miri emi.