Sepiolite yog ib hom ntawm cov ntxhia uas muaj fiber ntau cov qauv txuas ntxiv ntawm lub phab ntsa Perry thiab Pore channel. Cov qauv fiber ntau muaj cov qauv fawm kib, uas yog tsim ntawm ob txheej ntawm SI-O-Si-SI Oxide hauv nruab nrab, ua 0.36 nm × 1.06nm honeycomb pore. Sepiolite muaj cov ntawv thov feem ntau yuav tsum tauSepiolite Sib Tsoo Zeb Hmoov nyob hauv av rau hauv sepiolite hmoov. HCMILLING (GUILIN Hongcheng) yog lub chaw tsim khoom tshaj lij ntawm Sepiolite Sib Tsoo ZebCov. Tag nrho cov khoom siv ntawm peb Sepiolite Sib Tsoo Zeb Cov kab ntau lawm tau siv dav hauv kev ua lag luam. Txais tos kom paub ntxiv online. Cov hauv qab no yog kev qhia txog kev siv cov hmoov sepiolite:
1. Cov khoom ntawm sepiolite
(1) Adsorption cov khoom ntawm sepiolite
Sepiolite yog ib qho qauv muaj peb-seem tshwj xeeb nrog cov npoo av loj thiab pob zeb loj heev, uas yog germosed los ntawm sio2 tetrahedron thiab mg-oct octahedron. Tseem muaj ntau ntau acidic [sidic [sio4] Alkaline [Mggo6] Chaw rau nws sab, yog li sepiolite muaj kev kawm adsorption zoo.
Sepiolite crystal qauv muaj peb qhov sib txawv adsorption Chaw Zos Chaw:
Thawj yog o atom hauv Si-o tetrahedron;
Qhov thib ob yog dej lwg me uas koom ua ke nrog MG2 + ntawm ntug mg-Oct Octahedron, tsuas yog tsim hydrogen khi nrog lwm yam khoom;
Qhov thib peb yog SI He Haus ua ke, uas yog tsim los ntawm kev tawg ntawm cov lus sib xyaw ua ke ntawm silicon oxygen sib koom ua ke hauv lub sio2 thiab tau txais ib qho kev sib tw lossis hydrocarbon molecule kom them rau cov peev txheej uas ploj lawm. Lub Si Huag hauv sepiolite tuaj yeem cuam tshuam nrog cov lwg me ntsis ntawm nws cov npoo kom ntxiv dag zog rau cov adsorption, thiab tuaj yeem tsim kev sib tw sib txuas lus nrog qee cov tshuaj organic.
(2) thermal stability ntawm sepiolite
Sepiolite yog ib cov av nplaum hauv av nplaum nrog cov khoom siv kub ruaj khov. Thaum lub sij hawm muaj cov txheej txheem cua sov zuj zus los ntawm qhov kub me me kom siab kub, cov qauv siv lead ua kom sov, cov qauv siv lead ua ntawm sepiolite tau dhau mus txog plaub lub cev yuag:
Thaum qhov kub sab nraud ncav cuag txog 100 ℃, dej lwg uas sepecules yuav poob rau hauv thawj theem yog cov dej lwg nyob rau hauv lub qhov hnyav txog 11% ntawm qhov hnyav ntawm sepiolite.
Thaum cov ntsuas kub sab nraud ncav cuag 130 ℃ rau 300 ℃, sepiolite hauv theem ob yuav poob thawj feem ntawm kev sib koom tes dej nrog mg2 +, uas yog li 3% ntawm nws pawg.
Thaum cov ntsuas kub sab nraud ncav cuag 300 ℃ rau 500 ℃, sepiolite nyob rau theem peb yuav poob ib feem ntawm kev sib koom tes dej nrog mg2 +.
Thaum cov ntsuas kub sab nraud mus txog tshaj 500 ℃, cov txheej txheem dej (- Oh) ua ke nrog octahedron sab hauv yuav ploj nyob rau theem thib plaub. Cov qauv fiber ntau ntawm sepiolite nyob rau hauv theem no tau raug rhuav tshem tag tseg, yog li cov txheej txheem yog irreversible.
(3) corrosion tsis kam ntawm sepiolite
Sepiolite ib txwm muaj cov kua qaub zoo thiab alkali tsis kam. Thaum nws nyob hauv nruab nrab nrog daws P yeej <3 lossis> 10, tus qauv sab hauv ntawm sepiolite yuav corroded. Thaum nws nyob nruab nrab ntawm 3-10, sepiolite qhia muaj zog ruaj khov. Nws qhia tau hais tias sepiolite muaj cov kua qaub muaj zog thiab alkali tsis kam, uas yog ib qho laj thawj tseem ceeb vim li cas sepiolite yog siv los ua inorganic sore los npaj maya zoo li cov xim xiav.
(4) catalytic cov khoom ntawm sepiolite
Sepiolite yog tus pheej yig thiab heev cov tsheb catalyst catalyst. Qhov laj thawj tseem ceeb yog tias sepiolite tuaj yeem tau txais thaj chaw muaj teeb meem ntau dua tom qab kev hloov kho cov acid Sepiolite tuaj yeem siv los ua tus nqa khoom los ua cov photocatalyst nrog tinealytic ua tau nrog Tii2, uas yog dav siv hauv hydrogenation, oxidation, denulfurification, thiab lwm yam.
(5) ion txauv ntawm sepiolite
Cov txheej txheem ion sib pauv siv lwm cov khoom siv hlau muaj zog los hloov MG2 + yog li hloov nws cov txheej txheem acidity, thiab txhim kho cov adsorption kev ua haujlwm ntawm sepiolite. Cov hlau ions ntawm sepiolite yog yeej los ntawm magnesium ions, nrog me me ntawm aluminium ions thiab ib qho me me ntawm lwm lub cations. Qhov tshwj xeeb muaj pes tsawg leeg thiab cov qauv ntawm sepiolite ua rau nws yooj yim rau cations hauv nws cov qauv los sib pauv nrog lwm lub chaw.
(6) Rheological cov yam ntxwv ntawm sepiolite
Sepiolite nws tus kheej yog ib tug txiv nqaj qaum, tab sis feem ntau ntawm cov piled mus rau hauv bundles nrog kev txiav txim tsis xwm yeem. Thaum sepiolite yog yaj hauv dej los yog lwm cov pawg polarents, cov kab no yuav tawg sai thiab cuam tshuam nrog cov kuab fiber ntau nrog kev tswj hwm tsis xwm yeem. Cov ntaub ntawv network no sau tus ncua ntawv nrog muaj zog rheology thiab cov viscosity siab, qhia cov yam ntxwv txawv txawv ntawm sepiolite.
Tsis tas li ntawd, Sepiolite tseem muaj cov yam ntxwv ntawm rwb thaiv tsev, decolorization, nplaim hluavtaws thiab nthuav dav cov txiaj ntsig hauv kev lag luam teb.
2. Cov ntawv thov tseem ceeb ntawm sepioliteCov txheej txheem hmoov los ntawmSepiolitesib tsoo zeb
Nrog rau kev txhim kho sai ntawm Tuam Tshoj kev lag luam, kev lag luam xav tau rau ib puag ncig-phooj ywg, muaj txiaj ntsig zoo cov khoom siv yog loj hlob. Sepiolite yog ib hom ntawm cov khoom siv inorganic zoo vim nws cov qauv crystal tshwj xeeb, uas yog kuab paug, ib puag ncig-tus phooj ywg thiab pheej yig. Tom qab tau ua tiav los ntawm sepiolite sib tsoo tshuab, nws tuaj yeem yog qhov kev tiv thaiv dav, ceramalum ua hluav taws xob, plastics, uas muaj qhov cuam tshuam loj ntawm Tuam Tshoj kev lag luam kev loj hlob. Nyob rau tib lub sijhawm, cov neeg tau pib them nyiaj ntau rau cov kev tsim kho sepiolite, thiab ua kom nrawm dua kev ua haujlwm tsis txaus ntseeg, thiab ua kom nrawm dua kev ua haujlwm tam sim no ntawm sepiolite hauv kev ua lag luam qis dua cov khoom lag luam qis.
Lub Sijhawm Post: Dec-28-2022
