Ngwọta

Sepiolite bụ ụdị ịnweta nwere ụdị eriri, nke bụ usoro eriri na-agbatị ọzọ site na mgbidi pore polyhedral na ọwa pore.Ihe owuwu eriri ahụ nwere usoro dị larịị, nke mejupụtara akwa abụọ nke Si-O-Si bond jikọtara silicon oxide tetrahedron na octahedron nwere magnesium oxide n'etiti, na-akpụ 0.36 nm × 1.06nm pore mmanụ aṅụ.Ngwa ụlọ ọrụ Sepiolite na-achọkarịigwe ihe igwe sepiolite ntụ ntụ a ga-egweri n'ime sepiolite ntụ ntụ.HCMilling (Guilin Hongcheng) bụ ọkachamara emeputa nke igwe ihe igwe sepiolite.The dum set nke akụrụngwa nke anyị igwe ihe igwe sepiolite emeputa ahịrị ejirila ọtụtụ ebe n'ahịa.Nnọọ ka ịmụtakwu ihe n'ịntanetị.Ihe na-esonụ bụ mmalite maka ojiji nke sepiolite ntụ ntụ:

1. Njirimara nke sepiolite

(1) Njirimara adsorption nke sepiolite

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

Ọdịdị kristal sepiolite nwere saịtị etiti na-arụ ọrụ adsorption atọ:

Nke mbụ bụ O atọm na Si-O tetrahedron;

Nke abụọ bụ mmiri ụmụ irighiri mmiri nke na-ahazi na Mg2+ na nsọtụ Mg-O octahedron, tumadi na-akpụ agbụ hydrogen na ihe ndị ọzọ;

Nke atọ bụ njikọ njikọ Si OH, nke a na-ebute site na nbibi nke njikọ oxygen silicon na SiO2 tetrahedron wee nata proton ma ọ bụ hydrocarbon molecule iji kwụọ ụgwọ maka ikike efu efu.Njikọ Si OH dị na sepiolite nwere ike imekọrịta ihe na ụmụ irighiri ihe ndị a na-etinye n'elu ya iji mee ka mgbasa ozi sikwuo ike, ma nwee ike ịmepụta njikọ nke covalent na ụfọdụ ihe organic.

(2) Thermal kwụsie ike nke sepiolite

Sepiolite bụ ụrọ inorganic nke nwere nguzogide okpomọkụ dị elu.N'oge usoro kpo oku nke nta nke nta site na obere okpomọkụ gaa na okpomọkụ dị elu, usoro kristal nke sepiolite agafewo usoro nkwụsị arọ anọ:

Mgbe okpomọkụ dị n'èzí ruru ihe dịka 100 ℃, mkpụrụ ndụ mmiri nke sepiolite ga-efunahụ na ọkwa mbụ bụ mmiri zeolite na pores, na ọnwụ nke akụkụ a nke mmiri mmiri ruru ihe dị ka 11% nke mkpokọta sepiolite.

Mgbe mpụga okpomọkụ ruru 130 ℃ ka 300 ℃, sepiolite na nke abụọ ogbo ga-atụfu akụkụ mbụ nke nhazi mmiri na Mg2+, nke bụ banyere 3% nke uka.

Mgbe mpụga okpomọkụ ruru 300 ℃ ka 500 ℃, sepiolite na nke atọ ogbo ga-atụfu akụkụ nke abụọ nke nhazi mmiri na Mg2+.

Mgbe okpomọkụ dị n'èzí ruru n'elu 500 ℃, mmiri nhazi (-OH) jikọtara ya na octahedron n'ime ga-efunahụ na ọkwa nke anọ.Ebibiela usoro eriri nke sepiolite na ọkwa a kpamkpam, yabụ na usoro ahụ enweghị ike ịgbagha.

(3) Nguzogide corrosion nke sepiolite

Sepiolite n'ezie nwere ezigbo acid na nguzogide alkali.Mgbe ọ dị na ọkara na ngwọta pH uru <3 ma ọ bụ> 10, a ga-emebi usoro ime nke sepiolite.Mgbe ọ dị n'etiti 3-10, sepiolite na-egosi nkwụsi ike siri ike.Ọ na-egosi na sepiolite nwere acid siri ike na nguzogide alkali, nke bụ ihe dị mkpa mere e ji eji sepiolite mee ihe dị ka isi inorganic iji kwadebe Maya dị ka agba anụnụ anụnụ.

(4) Njirimara nke sepiolite

Sepiolite bụ ihe na-ebu ibu dị ọnụ ala na nke bara uru.Isi ihe kpatara ya bụ na sepiolite nwere ike nweta ebe dị elu nke elu ya na usoro porous nke ya na-eme ka ọ gbanwee acid, nke bụ ọnọdụ dị mma maka iji sepiolite dị ka onye na-ebu.Enwere ike iji sepiolite dị ka onye na-ebu iji mepụta photocatalyst na arụmọrụ catalytic dị mma na TiO2, nke a na-ejikarị na hydrogenation, oxidation, denitrification, desulfurization, wdg.

(5) ion mgbanwe nke sepiolite

Usoro mgbanwe ion na-eji cations ọla ndị ọzọ na polarization siri ike dochie Mg2 + na njedebe nke octahedron na nhazi sepiolite, si otú a na-agbanwe oghere oyi akwa ya na acidity elu ya, ma na-akwalite arụmọrụ adsorption nke sepiolite.A na-achịkwa ion metal nke sepiolite site na ion magnesium, nke nwere obere ion aluminum na obere cations ndị ọzọ.Ngwakọta pụrụ iche na nhazi nke sepiolite na-eme ka ọ dị mfe maka cations na nhazi ya iji gbanwee ya na cations ndị ọzọ.

(6) Njirimara Rheological nke sepiolite

Sepiolite n'onwe ya bụ mkpara dị gịrịgịrị, mana ọtụtụ n'ime ha na-achịkọta n'ime ùkwù na-enweghị usoro.Mgbe sepiolite agbazere n'ime mmiri ma ọ bụ ihe mgbaze ndị ọzọ, ngwugwu ndị a ga-agbasa ngwa ngwa ma na-emekọrịta ihe na-adịghị mma iji mepụta netwọk eriri dị mgbagwoju anya na-ejigide ihe mgbaze oge niile.Netwọk ndị a na-etolite nkwusioru na rheology siri ike na viscosity dị elu, na-egosi njirimara rheological pụrụ iche nke sepiolite.

Tụkwasị na nke ahụ, sepiolite nwekwara njirimara nke mkpuchi mkpuchi, decolorization, ire ọkụ ọkụ na expansibility, nke nwere nnukwu uru ngwa na ubi mmepụta ihe.

2. Ngwa ngwa nke Sepioliteusoro ntụ ntụ siteSepioliteigwe ihe igwe

Site na mmepe ngwa ngwa nke akụ na ụba China, ahịa ahịa maka omume enyi na gburugburu ebe obibi, ihe ndị bara uru dị elu na-eto eto.Sepiolite bụ ụdị ihe na-adịghị ahụkebe nke nwere nkwụsi ike dị mma n'ihi nhazi kristal pụrụ iche, nke na-enweghị mmetọ, na gburugburu ebe obibi na ọnụ ala.Mgbe ejiri igwe na-egweri sepiolite edozi ya, enwere ike iji ya mee ihe n'ọtụtụ ebe na mpaghara ụlọ ọrụ dị iche iche, dị ka ihe owuwu, teknụzụ seramiiki, nkwadebe ihe na-akpali akpali, njikọ pigmenti, ncha mmanụ, nchekwa gburugburu ebe obibi, plastik, wdg, nke nwere mmetụta dị ukwuu na ụlọ ọrụ mmepụta ihe nke China. mmepe.N'otu oge ahụ, ndị mmadụ amalitela ịṅa ntị na ngwa ọhụrụ na mmepe nkà na ụzụ nke sepiolite, ma mee ka owuwu nke ụlọ ọrụ sepiolite dị mgbagwoju anya iji dozie ụkọ sepiolite dị ugbu a n'ahịa ahịa dị ala agbakwunyere uru nke ngwaahịa.