Ngwọta

Sepiolite bụ ụdị mineral nwere ụdị eriri, nke bụ nhazi eriri na-agbatị site na mgbidi pore polyhedral na ọwa pore. Nhazi eriri ahụ nwere nhazi oyi akwa, nke mejupụtara akwa abụọ nke silicon oxide tetrahedron jikọtara na Si-O-Si bond na octahedron nwere magnesium oxide n'etiti, na-emepụta oghere mmanụ aṅụ 0.36 nm × 1.06nm. Ngwa ọrụ mmepụta ihe Sepiolite na-achọkarịigwe igwe sepiolite A ga-egweri ntụ ntụ ka ọ bụrụ ntụ sepiolite. HCMalling (Guilin Hongcheng) bụ ọkachamara na-emepụta ntụ ntụ igwe igwe sepioliteNgwa niile nke anyị igwe igwe sepiolite A na-eji usoro mmepụta eme ihe nke ukwuu n'ahịa. Nnọọ ka ịmatakwu gbasara ya n'ịntanetị. Ihe ndị a bụ okwu mmalite maka ojiji nke ntụ ntụ sepiolite:

1. Àgwà nke sepiolite

(1) Njirimara adsorption nke sepiolite

Sepiolite bụ ihe owuwu pụrụ iche nke nwere akụkụ atọ nwere nnukwu mpaghara elu na porosity dị larịị, nke SiO2 tetrahedron na Mg-O octahedron na-akụnye. E nwekwara ọtụtụ ebe acidic [SiO4] alkaline [MgO6] dị n'elu ya, yabụ sepiolite nwere arụmọrụ adsorption siri ike.

Ọdịdị kristal Sepiolite nwere ebe etiti adsorption atọ dị iche iche:

Nke mbụ bụ atọm O dị na tetrahedron Si-O;

Nke abụọ bụ molekul mmiri nke na-ejikọta na Mg2+ n'ọnụ octahedron Mg-O, nke na-emepụta njikọ hydrogen na ihe ndị ọzọ;

Nke atọ bụ njikọta njikọ Si OH, nke a na-emepụta site na mmebi nke njikọ silicon oxygen dị na tetrahedron SiO2 ma na-enweta molekul proton ma ọ bụ hydrocarbon iji kwụọ ụgwọ maka ikike efu. Njikọ Si OH dị na sepiolite nwere ike imekọrịta na molekul ndị a na-etinye n'elu ya iji mee ka mmịpụta ahụ sie ike, ma nwee ike ịmepụta njikọ covalent na ụfọdụ ihe ndị dị ndụ.

(2) Nkwụsi ike okpomọkụ nke sepiolite

Sepiolite bụ ihe e ji ụrọ na-adịghị arụ ọrụ nke nwere ike iguzogide okpomọkụ dị elu. N'oge usoro ikpo ọkụ nwayọ nwayọ site na obere okpomọkụ ruo na okpomọkụ dị elu, nhazi kristal nke sepiolite agafeela usoro mbelata ibu anọ:

Mgbe okpomọkụ dị n'èzí ruru ihe dị ka 100 ℃, molekul mmiri nke sepiolite ga-efunahụ na nkebi mbụ bụ mmiri zeolite n'ime oghere ndị ahụ, mfu nke akụkụ a nke molekul mmiri na-erukwa ihe dị ka 11% nke mkpokọta ibu nke sepiolite.

Mgbe okpomọkụ mpụta ruru 130 ℃ ruo 300 ℃, sepiolite na ọkwa nke abụọ ga-efunahụ akụkụ mbụ nke mmiri nhazi na Mg2+, nke bụ ihe dị ka 3% nke oke ya.

Mgbe okpomọkụ mpụta ruru 300 ℃ ruo 500 ℃, sepiolite na ọkwa nke atọ ga-efunahụ akụkụ nke abụọ nke mmiri nhazi na Mg2+.

Mgbe okpomọkụ mpụta ruru ihe karịrị 500 ℃, mmiri nhazi (- OH) jikọtara ya na octahedron dị n'ime ga-efunahụ na ọkwa nke anọ. E bibiri usoro eriri nke sepiolite n'oge a kpamkpam, yabụ usoro ahụ agaghị agbanwe agbanwe.

(3) Mgbochi ire ere nke sepiolite

Sepiolite nwere ezigbo iguzogide acid na alkali. Mgbe ọ dị n'etiti ya na pH ngwọta <3 ma ọ bụ>10, nhazi ime nke sepiolite ga-emebi emebi. Mgbe ọ dị n'etiti 3-10, sepiolite na-egosi nkwụsi ike siri ike. Ọ na-egosi na sepiolite nwere ike iguzogide acid na alkali siri ike, nke bụ ihe dị mkpa mere e ji eji sepiolite dị ka isi ihe na-adịghị mma iji kwadebe agba anụnụ anụnụ dị ka Maya.

(4) Njirimara mkpali nke sepiolite

Sepiolite bụ ihe na-ebu ihe na-akpali akpali dị ọnụ ala ma dịkwa irè. Isi ihe kpatara ya bụ na sepiolite nwere ike inweta mpaghara elu dị elu yana nhazi oghere nke ya mgbe agbanwere acid, nke bụ ọnọdụ dị mma maka iji sepiolite dị ka ihe na-ebu ihe na-akpali akpali. Enwere ike iji Sepiolite dị ka ihe na-ebu ibu iji mepụta fotocatalyst nwere arụmọrụ catalytic dị mma na TiO2, nke a na-ejikarị eme ihe na hydrogenation, oxidation, denitrification, desulfurization, wdg.

(5) Mgbanwe ion nke sepiolite

Usoro mgbanwe ion na-eji cations ígwè ndị ọzọ nwere polarization siri ike iji dochie Mg2+ na njedebe nke octahedron na nhazi sepiolite, si otú a na-agbanwe oghere oyi akwa ya na acidity elu ya, ma na-eme ka arụmọrụ adsorption nke sepiolite dịkwuo mma. ion magnesium na-achịkwa ion ígwè nke sepiolite, yana obere ion aluminom na obere cations ndị ọzọ. Ihe mejupụtara na nhazi pụrụ iche nke sepiolite na-eme ka ọ dịrị cations dị na nhazi ya mfe ịgbanwe na cations ndị ọzọ.

(6) Àgwà rheological nke sepiolite

Sepiolite n'onwe ya bụ obere mkpanaka, mana ọtụtụ n'ime ha na-agbakọta n'ime ngwugwu na-enweghị usoro. Mgbe a gbazere sepiolite na mmiri ma ọ bụ ihe mgbaze ndị ọzọ dị na polar, ngwugwu ndị a ga-agbasa ngwa ngwa ma jikọta onwe ha n'ụzọ na-adịghị mma iji mepụta netwọk eriri dị mgbagwoju anya nke nwere njigide ihe mgbaze na-adịghị mma. Ụdị netwọk ndị a na-emepụta nkwụsịtụ nwere rheology siri ike na oke viscosity, na-egosi ihe pụrụ iche nke rheological nke sepiolite.

Na mgbakwunye, sepiolite nwekwara njirimara nke mkpuchi, mwepụ agba, nkwụsị ire ọkụ na mgbasawanye, nke nwere nnukwu uru ngwa ngwa n'ọhịa ụlọ ọrụ mmepụta ihe.

2. Ojiji Ndị Isi nke Sepioliteusoro ntụ ntụ site naSepioliteigwe igwe egweri ihe

Site na mmepe ngwa ngwa nke akụ na ụba China, ọchịchọ ahịa maka ihe ndị dị mma maka gburugburu ebe obibi, nke bara uru dị elu na-eto. Sepiolite bụ ụdị ihe na-adịghị ndụ nke nwere ezigbo nkwụsi ike n'ihi nhazi kristal pụrụ iche ya, nke na-enweghị mmetọ, nke na-adịghị ize ndụ maka gburugburu ebe obibi ma dịkwa ọnụ ala. Mgbe e jiri igwe e ji sepiolite gwerie ya, enwere ike iji ya mee ihe n'ọtụtụ ebe ọrụ mmepụta ihe dị iche iche, dịka ụlọ ọrụ mmepụta ihe, teknụzụ seramiiki, nkwadebe ihe na-akpali akpali, njikọta agba, nchacha mmanụ, nchekwa gburugburu ebe obibi, plastik, wdg, nke nwere nnukwu mmetụta na mmepe ụlọ ọrụ mmepụta ihe nke China. N'otu oge ahụ, ndị mmadụ amalitela itinye uche karịa na ngwa ọhụrụ na mmepe teknụzụ nke sepiolite, ma mee ka owuwu nke usoro ụlọ ọrụ sepiolite dị elu dịkwuo ngwa ngwa iji dozie ụkọ sepiolite dị ugbu a n'ahịa.