K-catalystyog cov ntxhia pob zeb uas muaj lub zog ntawm hydrous heev, tseem hu ua Jiaoling Pob Zeb thiab Microcrystalline, Molecular Cov Qauv: Al2o9Si3, CAS 1318-93-0. Nws yog lub ntsiab tivthaiv ntawm bentonite, uas yog hloov los ntawm cov hluav taws xob volcanic condensates thiab lwm cov pob zeb tsis muaj zog hauv Alkaline ib puag ncig. Dawb, qee zaum lub teeb grey, paj yeeb, lub teeb ntsuab. Cov scally uas tau ua tiav cleavage. Mos heev. Nws hnov qab nplua. Thaum cov dej ntxiv, cov ntim tuaj yeem nce ob peb zaug thiab ua cov tshuaj txhuam. Nws muaj cov adsorption thiab cation sib pauv ua tau zoo. Montmorillonite feem ntau yog tsim los ntawm huab cua ntawm cov pib qhov yooj yim pob zeb hauv Alkaline ib puag ncig, thiab qee qhov yog cov khoom ntawm cov kev txiav txim siab ntawm lub roob volcanic tshauv tso rau hauv hiav txwv. Nws yog lub ntsiab tivthaiv ntawm bentonite. Bentonite yog tsim nyob rau hauv ntau qhov chaw nyob rau hauv Suav teb, xws li ua tus pab, Heilongjiang, Jilin, Hebei, Henan thiab Zhejiang. Cov Montmorillonite Cov Kev Ua Haujlwm nrog kev muaj nuj nqis hauv Suav teb feem ntau tshwm sim hauv Mesozoic volcanic pob zeb Series. Cov Montmorillonite Organic ua haujlwm tau npaj los ntawm kev siv nws lub cated txauv cov cuab yeej, thiab yog siv dav rau qhov siab roj lubrication, roj hmab thiab xim.
Sib txawv granularity
Cation Exchangility yog ib qho ntawm cov khoom tseem ceeb tshaj plaws ntawm Montmorillonite. Lub tebchaws Adsorbed ntawm Montmorillonite txheej hloov pauv, thiab tag nrho cov nyiaj ntawm cov cations no yog hu ua "kev sib pauv peev xwm" (CEC). Nyob rau hauv aqueous media, lwm cov xov tooj sib pauv thiab cov lwg dej uas tuaj yeem nkag mus rau hauv cov interlayers, thiab cov txheej txheem no tau rov qab. Los ntawm kev hloov kho mandmorillonite siv nws cov lus hloov pauv, cov khoom siv ntau yam xws li cov av nplaum bentonite, ua kom cov av nplaum ua kom zoo, thiab cov organic monicon tau npaj.
Montmorillonite muaj ntau tus naj npawb ntawm hydroxyl pawg nyob rau hauv nws cov qauv, muaj muaj zog hydrophilicity, thiab muaj cov yam dej nqus dej thiab o. Qhov o ntawm montmorillonite feem ntau yog raws li cov hydration ntawm interlayer cations, uas adsorb dej molecules los ua zaj duab xis hydration, nce kev sib kis hydration, thiab ua rau o. Cov kev hydration thiab o ntawm montmorillonite tsuas yog suav nrog peb theem:
(1) Kev co dej saum toj: Muaj ntau cov qauv tsis txaus ntseeg nyob rau ntawm cov kab ke molecules lossis lwm yam los ntawm cov roj av molecules los ntawm adsorbed sib pauv hloov chaw.
(2) ion hydration: interlayer sib pauv tau cations yog hydrated los tsim hydrated cations.
(3) Osmotic hydration: Thaum interlayer nrug nce mus rau qee qhov sib txawv, thiab ntau yam regstration rau hauv cov khoom siv roj ntsha ua rau cov pa roj hmab, thiab cov khoom siv hluav taws xob sib txawv, nce kev cuam tshuam nrog kev sib cuam tshuam thiab ua rau muaj kev nthuav dav.
Ntawm peb cov txheej txheem hydration tau hais los saum no, ob qho kawg yog qhov tseem ceeb.
Vim yog cov tsis muaj zog interlayer khi dag zog ntawm Montmorillonite, cov lwg dej tau nkag mus rau hauv cov interrayer, nce cov khaubncaws sab nraud povtseg, thiab cov khaubncaws sab nraud pov tseg. Cov khoom hydrated muaj nyob rau hauv daim ntawv ntawm ib tug me me ntawm cov hlwb hlwb ua ke, lossis chav tsev lossis cov siv lead ua ke. Hauv cov dej hauv nruab nrab, txij li montmorillonite hais yog txhua yam tsis zoo, nws yog qhov nyuaj rau kev ua kom loj me ntsis, yog li nws muaj kev ncua zoo thiab tuaj yeem siv raws li kev ncua tus neeg sawv cev. Feem ntau, tus raug tshem tawm nce nrog kev nce ntawm pH tus nqi, thiab zoo dua nyob rau hauv alkaline tej yam kev mob ntau dua nyob rau hauv nruab nrab thiab acidic tej yam kev mob.
Thaum monicmorillonite yog tov nrog dej, lub nplaim dej saum lub zog thiab cationic kev sib cuam tshuam, ua rau muaj ntau dua ntawm Montmorillonite kom nthuav dav thiab tsim cov ntawv ywj siab. Ntawm cov npoo ntawm Montmorillonite nplooj ntawv, vim yog cov kev sib tw ntawm cov ntawv sib tw, thiab cov npoo thiab cov qauv sib txawv ntawm cov qauv sib xyaw loj. Cov dej lwg me me, emulsion hais, thiab lwm yam tau qhwv thiab cais tawm kom lawv cov kev tawm tsam ntau, yog li ua tiav cov nyhuv tuab. Raws li lub sijhawm mus los ntawm, tus qauv colloidal feem ntau yuav ruaj khov. Thaum shear fort yog siv, lub qauv colloidal tau raug puas tsuaj, kev tawm tsam dua, qhov tsis kam mus rau lub zog ntawm cov txheej txheem yog txo. Qhov sib ntxiv ntawm cov pitples xws li disperstant sodium hexametaphosphate tuaj yeem raug Adsorillonite, yog qhov rhuav tshem qhov ruaj khov, yog rhuav tshem qhov ruaj ntseg ntawm "daim npav palace" qauv. Qhov sib ntxiv ntawm cov nqi zoo tuaj yeem nruab nrab cov kua qaub actions, rov qab ua lub ntsej muag zoo, rov sau cov qauv colloidal, thiab ntxiv mus viscosity.
Montmorillonite colloid yog kua tsis yog-Newtonian, thiab nws viscosity hloov nrog shear tus nqi lossis sijhawm. Raws li kev txiav txim ntawm Shear zog, txuas ntxiv mus rau Montmorillonite, thiab cov flakorillonite puas tsuaj, thiab cov floid pib ntws, nrog shear uas cov yam ntxwv uas ua kom tawg; Thaum cov av nplaum system raug rau tus qauv sib tw tas li, raws li tus qauv colloid puas, lub viscosity txo nrog lub sijhawm kom txog thaum lub ntsej muag sib txawv tau mus txog. Thaum lub zog shear raug tshem tawm, nyob rau hauv cov xwm txheej zoo li qub, raws li lub sij hawm hydrogen tau koom nrog kev sib tw zoo thiab tsis zoo, thiab cov kab viscosity nce. Cov txheej txheem no ntawm colloidal qauv kev rhuav tshem thiab rov qab tau rov qab, uas yog hu ua thixotrotropy ntawm Montmorillonite. Lub Thixotrotropy Index Ti tuaj yeem qhia los ntawm viscosity piv ntawm tib lub rotor ntawm kev sib hloov ntawm 10R thiab R.
Montmorillonite yog lub ntuj inorganic ntxhia cov khoom siv nrog kev ruaj khov zoo thiab huab cua tsis kam.
(1) Cov tshuaj ruaj khov zoo
Montmorillonite yog insoluble hauv dej thiab ntau yam kuab tshuaj. Nws tsis raug txo lossis oxidized ntawm chav tsev kub. Nws muaj ntau hom. Nws cov qauv tsis yooj yim cuam tshuam los ntawm cov kua qaub yooj yim los ntawm cov kua qaub, alkalis, ntsev, thiab lwm yam muaj kev sib xyaw zoo nrog cov organic actions, cov pa roj hmab, thiab lwm yam.
(2) Zoo thermal ruaj khov
Lub cev qhuav dej kub yog ib qho kev ntsuas ntawm cov cua sov tsis kam ntawm Montmorillonite, muaj kev cuam tshuam zoo ntawm nws cov khoom ruaj khov. Lub dehydroxylation Kub ntawm Montmorillonite feem ntau yog feem ntau 550 Qib -750 degree. Ntawm qhov kub no, cov txheej txheem hydroxyl tau muab tshem tawm tab sis txheej txheej txheej tsis pov tseg, qhia zoo thermal stability.
(3) Kev ruaj khov zoo biological
Montmorillonite tsis muaj kev cuam tshuam los ntawm cov kab mob, cov kab mob me, thiab tsis yooj yim sua thaum lub caij ntuj sov sov. Nws yuav tsis yog enzymatically degraded, tsw yog, lossis muaj viscosity zoo li cov organic thickeners xws li cellulose thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav thiab xanthan ntawm cov pos hniav. Nws muaj kev tiv thaiv zoo heev corrosion thiab anti-degradation cov khoom.
Txoj Kev Txhuam Ua Si:
Muaj ntau txoj hauv kev rau kev ua kom huv si bentonite, uas tuaj yeem faib ua cov qauv qhuav thiab cov txheej txheem ntub raws li cov txheej txheem lim tshuaj.
Txuj Ci Qhuav:
Txoj kev qhuav yog kom ua tiav cov kab mob bentonite uas tau ua rau muaj cov huab cua nrog huab cua mus rau hauv lub xeev. Nyob rau hauv kev txiav txim ntawm centrifugal quab yuam ntawm cov neeg ua haujlwm thiab feem ntau ntawm cov nqus dej loj thiab cov khoom sib cais nrog cov minerals nplua.
Cov Txheej Txheem Ntub Dej:
Thaum lub sij hawm ntub dej huv, cov dej nruab nrab muab qhov chaw txaus thiab lub zog rau kev nthuav dav thiab dej ntawm Montmorillonite Interlayer. Los ntawm stirring thiab ntxiv dispersants, montmorillonite colcorlle loj yuav me, ua rau nws yooj yim dua, ua rau nws cais tawm ntawm cov zaub hauv plab uas tsis tuaj yeem ncav cuag colloidal particle.
Raws li kev sib cais ntawm lub hauv paus ntsiab lus, nws tuaj yeem faib ua txoj kev siv lub cev thiab tshuaj lom neeg ua kom huv.
1) Kev Siv Lub Cev Lub Cev:
Kev ntxuav tes lub cev muaj xws li xaiv huab cua, cov qauv ntxuav, tshuaj lom neeg, ntau txoj kev yog siv hauv kev sib xyaw ua ke. Raws li cov qhab-nees thiab cov kev xav tau ntawm Bentonite, High-qib bentonite (Montmorillonite cov ntsiab lus yog li 80%) tuaj yeem ua kom muaj huab cua xaiv; Bent-qib bentonite tuaj yeem huv los ntawm cov txheej txheem ntub; Bentonite muaj cov coicle impurities xws li feldspap thiab calcite tuaj yeem ua kom huv los ntawm kev sib tsoo ntxuav; Impurities nrog particle loj zoo ib yam li monicmorillonite lossis qhwv hauv manctoralonite yuav tsum tau muab tshem tawm cov kev kho mob thiab cov khoom siv khoom noj feem ntau tsis tuaj yeem ua kom huv los ntawm kev siv tshuaj.
2) Txoj Kev Siv Tshuaj Lom Zem:
Tshuaj lom neeg purification txoj kev tuaj yeem muab faib ua cov tshuaj lom neeg feem ntau txoj kev ua kom huv. Tus qub dua ib qho tsis txaus siab, feem ntau ntsev, nyob rau ntawm lub hauv paus ntawm Centrifugal txoj kev. Cov phosphate ions yog adsorbed rau ntawm lub ntsej muag ntawm Montmorillonite, ua rau muaj kev ua kom zoo dua ntawm cov ntawv txheeb, thiab tom qab ntawd ua rau muaj kev sib cais los ntawm Montmorillonite los ntawm centrifugation. Piv nrog lub centrifugal hom qauv, nws txhim kho cov pej xeem thiab encapsulation lub xeev ntawm manceralonite thiab tsis txhim kho kev ncua thiab kev tsis sib haum ntawm calcium-raws Montmorillonite. Yog li ntawd, lub purity ntawm tau montmorillonite yog siab dua, tab sis cov txiaj ntsig yog qis dua. Tom qab tom kawg ntxiv cov khoom siv pretreatment pretrecificate, uas txhim kho cov calcium monicing bentonite, thiab nce cov txiaj ntsig, thiab nce cov txiaj ntsig thaum txhim kho lub purity.
Synthesis txoj kev ntawm kev muaj kev coj dawb huvK-catalyst: Dissolve Bentonite hauv Aqua Regia, tom qab ntawd ntxiv sodium hydroxide (na0h) los npaj cov tshuaj salted ntawm qhov kub tshaj 90℃c thiab qis dua 100℃C.
Lub npe ntawm cov khoom los ntawm Montmorillon hauv Fab Kis, qhov chaw nws tau thawj zaug pom. Montmorillonite Subfamily belongs rau ib qho ntawm smumite minerals (lwm subfamily yog saponite saponite), uas yog ib qho tseem ceeb clay ntxhia, feem ntau loj lossis hauv ntiaj teb. Cov mis molecular yog (na, Ca) 0.33 (Al, MG) 2 [Si4O10] (Oh) 2o. Nws yog cov av nplaum ntxhia nrog peb-txheej lamellar cov qauv muaj xws li txhuas oxide oxide oxide tetrahedron nyob rau sab saud thiab qis dua. Nws muaj cov dej thiab qee qhov sib pauv ntawm cov txheej txheem crystal cov khaubncaws sab nraud povtseg ntawm cov txheej txheem crystal Montmorillonite siv lead ua crystal rau monoclinc Silicate ntxhia ntxiab nrog Subifer qauv.
Nws hais me me, txog 0.2 ~ 1 μ m, nrog colloidal dispersion yam ntxwv, thiab feem ntau yog tsim los ua ib qho loj lossis hauv ntiaj teb sib sau ua ke. Raws li lub tshuab hluav taws xob hauv tshuab hluav taws xob, Montmorillonite tuaj yeem pom raws li Flake Crystals, uas yog dawb grey, lub teeb xiav lossis lub teeb liab. Thaum qhov ntsuas kub nce mus txog 100 ~ 200 degree, montmorillonite yuav maj poob dej. Montmorillonite tom qab lub cev qhuav dej kuj tseem tuaj yeem reabsorb dej lwg me me lossis lwm yam molecules. Thaum lawv nqus dej, lawv kuj tseem tuaj yeem nthuav dav thiab tshaj li cov thawj ntim ob peb zaug. Montmorillonite muaj ntau yam siv, thiab nws cov yam ntxwv tau siv hauv kev siv tshuaj lom neeg tsim adsorption thiab ua kom huv. Nws kuj tseem siv tau los ua cov muab tub lim rau cov ntawv ua, roj hmab thiab cov khoom siv tshuaj pleev ib yam nkaus li cov av uas yog cov tshuaj tua kab thiab tshuaj rau cov tshuaj metallurgy thiab tshuaj (feem ntau yog rau K-catalyst hmoov).
Ex (H2O) 4 {-X, MGX) 2 [(Si, AL) 4O10] (Oh) 2} tseem hu ua Microcrystalline Kaolinite. Hauv cov qauv saum toj no, e yog cov kev hloov pauv ntawm cov khaubncaws sab nraud povtseg, feem ntau} Kuv yog tus lej ntawm cov cation, feem ntau ntawm 0.2 thiab 0.6. Raws li cov hom tseem ceeb interlayer cations, nws tuaj yeem muab faib ua sodium montmorillonite, calcium monic montmorillonite thiab lwm yam sib xyaw ntau yam. Nyob rau hauv lub crystal chines nqaij mis, H2O (Crystal dej lossis cov khoom sib txuam, thiab lwm yam) yog ib txwm muaj nyob rau hauv cov khoom lag luam H2O thiab hloov pauv tau nyob rau hauv cov kev sib sau ua ke. E thiab H2O tsim lub xeev kev co los ntawm cov nyiaj txiag nruab nrab hydrogen. Yog tias e yog ib qho tsis sib haum ion, ionic lub peev xwm yog qhov me me, ua cov txheej txuas txuas ntxiv ntawm cov roj av; Yog tias e yog qhov sib zog sib txawv, ob txheej ntawm cov dej ua haujlwm txuas ntxiv tau tsim. Qhov no qhia tau tias cov lwg dej uas nkag rau hauv cov neeg sib tshuam tsis ncaj qha cuam tshuam nrog txheej daim phiaj (ib txheej ib txheej). Cov ntsiab lus ntawm cov dej muaj feem xyuam rau cov av noo thiab qhov kub ntawm ib puag ncig, uas tuaj yeem muaj txog plaub txheej.
Cim npe nrov: K-Catalyst CAS 1318-93-0, cov neeg tsim khoom, chaw tsim khoom, Hoobkas, lag luam Wholesale, yuav, nqe, loj, loj, rau muag