Isisombululo

I-Sepiolite luhlobo lweminerali olunesimo sefayibha, oluyisakhiwo sefayibha esisuka ngokwahlukana ukusuka eludongeni lwe-pore ye-polyhedral kunye nomjelo we-pore. Isakhiwo sefayibha siqulathe isakhiwo esineengqimba, esakhiwe ziingqimba ezimbini ze-Si-O-Si bond edibeneyo ne-silicon oxide tetrahedron kunye ne-octahedron equlethe i-magnesium oxide embindini, zenze i-0.36 nm × 1.06nm honeycomb pore. Ukusetyenziswa kwe-Sepiolite kwimizi-mveliso kudla ngokufunaisixhobo sokugaya sepiolite umgubo oza kugaywa ube ngumgubo we-sepiolite. I-HCMilling (Guilin Hongcheng) ngumvelisi ochwephesha we isixhobo sokugaya sepioliteZonke izixhobo zethu isixhobo sokugaya sepiolite Umgca wemveliso usetyenziswa kakhulu kwimarike. Wamkelekile ukuze ufunde okungakumbi kwi-intanethi. Oku kulandelayo yintshayelelo yokusetyenziswa komgubo we-sepiolite:

1. Iimpawu ze-sepiolite

(1) Iimpawu zokufunxa i-sepiolite

I-Sepiolite sisakhiwo esikhethekileyo esinobukhulu obuthathu esinendawo enkulu yomphezulu kunye ne-layered porosity, edityaniswe yi-SiO2 tetrahedron kunye ne-Mg-O octahedron. Kukwakho neendawo ezininzi ze-acidic [SiO4] alkaline [MgO6] kumphezulu wayo, ngoko ke i-sepiolite inamandla okufunxa.

Isakhiwo sekristale yeSepiolite sineendawo ezintathu ezahlukeneyo ze-adsorption ezisebenzayo:

Eyokuqala yi-athomu ye-O kwi-tetrahedron ye-Si-O;

Eyesibini ziimolekyuli zamanzi ezihambelana neMg2+ kumda we-octahedron yeMg-O, ikakhulu zenza iibhondi zehydrogen nezinye izinto;

Okwesithathu yindibaniselwano yebhondi yeSi OH, eveliswa kukuqhekeka kwebhondi ye-oksijini yesilicon kwi-tetrahedron yeSiO2 kwaye ifumana i-proton okanye i-molecule ye-hydrocarbon ukuze ihlawulele amandla angekhoyo. Ibhondi yeSi OH kwi-sepiolite inokunxibelelana nee-molecules ezifakwe kumphezulu wayo ukuqinisa i-adsorption, kwaye inokwenza ii-covalent bonds kunye nezinto ezithile eziphilayo.

(2) Uzinzo lobushushu be-sepiolite

I-Sepiolite yinto yodongwe engaphiliyo enokumelana nobushushu obuphezulu. Ngexesha lenkqubo yokufudumeza kancinci kancinci ukusuka kubushushu obuphantsi ukuya kubushushu obuphezulu, isakhiwo sekristale se-sepiolite sidlule kwizigaba ezine zokunciphisa ubunzima:

Xa ubushushu bangaphandle bufikelela malunga ne-100 ℃, iimolekyuli zamanzi eziza kulahlekelwa yi-sepiolite kwinqanaba lokuqala ngamanzi e-zeolite kwiimbobo, kwaye ukulahleka kwale nxalenye yeemolekyuli zamanzi kufikelela malunga ne-11% yobunzima be-sepiolite iyonke.

Xa ubushushu bangaphandle bufikelela kwi-130 ℃ ukuya kwi-300 ℃, i-sepiolite kwisigaba sesibini iya kulahlekelwa yinxalenye yokuqala yamanzi adibeneyo kunye ne-Mg2+, malunga ne-3% yobunzima bayo.

Xa ubushushu bangaphandle bufikelela kwi-300 ℃ ukuya kwi-500 ℃, i-sepiolite kwisigaba sesithathu iya kulahlekelwa yinxalenye yesibini yamanzi adibeneyo kunye ne-Mg2+.

Xa ubushushu bangaphandle bufikelela ngaphezu kwama-500 ℃, amanzi olwakhiwo (- OH) adityaniswe ne-octahedron ngaphakathi aya kulahleka kwinqanaba lesine. Ulwakhiwo lwefayibha ye-sepiolite kweli nqanaba lutshatyalalisiwe ngokupheleleyo, ngoko ke le nkqubo ayinakuguqulwa.

(3) Ukumelana nokugqwala kwe-sepiolite

I-Sepiolite ngokwendalo inokumelana okuhle kwe-asidi kunye ne-alkali. Xa ikwindawo enexabiso le-pH yesisombululo<3 okanye>10, ulwakhiwo lwangaphakathi lwe-sepiolite luya kubola. Xa iphakathi kwe-3-10, i-sepiolite ibonisa ukuzinza okuqinileyo. Ibonisa ukuba i-sepiolite inokumelana okunamandla kwe-asidi kunye ne-alkali, nto leyo esona sizathu sibalulekileyo sokuba i-sepiolite isetyenziswe njengesiseko se-inorganic ukulungiselela i-Maya efana ne-pigment eluhlaza okwesibhakabhaka.

(4) Iimpawu ze-catalytic ze-sepiolite

I-Sepiolite sisithwali se-catalyst esingabizi kwaye sisebenziseka lula. Isizathu esiphambili kukuba i-sepiolite inokufumana indawo ephezulu yomphezulu kunye nesakhiwo sayo esineembobo emva kokuguqulwa kwe-asidi, ezi ziimeko ezilungileyo zokusetyenziswa kwe-sepiolite njengesithwali se-catalyst. I-Sepiolite ingasetyenziswa njengesithwali ukwenza i-photocatalyst enomsebenzi ogqwesileyo we-catalytic kunye ne-TiO2, esetyenziswa kakhulu kwi-hydrogenation, i-oxidation, i-denitrification, i-desulfurization, njl.

(5) Ukutshintshiselana kwee-ion ze-sepiolite

Indlela yokutshintshiselana ngee-ion isebenzisa ezinye ii-cation zesinyithi ezine-polarization enamandla ukuze zithathe indawo ye-Mg2+ ekupheleni kwe-octahedron kwisakhiwo se-sepiolite, ngaloo ndlela zitshintsha isithuba sayo somaleko kunye ne-acidity yomphezulu, kwaye ziphucula ukusebenza kwe-adsorption ye-sepiolite. Ii-ion zesinyithi ze-sepiolite zilawulwa yi-magnesium ions, kunye nenani elincinci lee-ion ze-aluminium kunye nenani elincinci lezinye ii-cation. Ulwakhiwo olukhethekileyo kunye nesakhiwo se-sepiolite kwenza kube lula ukuba ii-cations kwisakhiwo sayo zitshintshiselane nezinye ii-cations.

(6) Iimpawu ze-Rheological ze-sepiolite

I-Sepiolite ngokwayo inomfanekiso wentonga ebhityileyo, kodwa uninzi lwayo luqokelelwa lube ziinqwaba ezinolandelelwano olungaqhelekanga. Xa i-sepiolite inyibilika emanzini okanye kwezinye izinyibilikisi ze-polar, ezi nqwaba ziya kusasazeka ngokukhawuleza kwaye zidibane ngokungalungelelananga ukuze zenze uthungelwano lwefayibha oluntsonkothileyo olunokugcinwa okungacwangciswanga kwe-solvent. Ezi ntlobo zenethiwekhi zenza umxube one-rheology enamandla kunye ne-viscosity ephezulu, ebonisa iimpawu ezikhethekileyo ze-rheological ze-sepiolite.

Ukongeza, i-sepiolite ikwaneempawu zokugquma, ukususa umbala, ukulibaziseka komlilo kunye nokwanda, nto leyo enexabiso elikhulu lokusebenza kwicandelo lemizi-mveliso.

2. Iimfuno eziphambili zeSepioliteinkqubo yepowder nguI-Sepioliteumsi wokugaya

Ngophuhliso olukhawulezileyo loqoqosho lwaseTshayina, imfuno yemarike yezinto ezinobuhlobo nokusingqongileyo, ezinexabiso eliphezulu, iyanda. I-Sepiolite luhlobo lwezinto ezingaphiliyo ezinozinzo oluhle ngenxa yesakhiwo sayo esikhethekileyo sekristale, esingenangcoliseko, esinobuhlobo nokusingqongileyo kwaye singabizi kakhulu. Emva kokuba isetyenzisiwe ngumatshini wokugaya i-sepiolite, ingasetyenziswa kakhulu kwiindawo ezahlukeneyo zoshishino, ezifana noyilo lwezakhiwo, ubuchwepheshe be-ceramic, ukulungiswa kwe-catalyst, ukwenziwa kwe-pigment, ukucocwa kwe-petroleum, ukukhuselwa kokusingqongileyo, iiplastiki, njl.njl., nto leyo enefuthe elikhulu kuphuhliso lwezoshishino lwaseTshayina. Kwangaxeshanye, abantu baqalise ukunikela ingqalelo ngakumbi kuphuhliso olutsha lwesicelo kunye nobuchwepheshe be-sepiolite, kwaye bakhawulezise ukwakhiwa kwekhonkco leshishini le-sepiolite elinobuchule ukusombulula ukunqongophala kwangoku kwe-sepiolite kwimarike. Ixabiso eliphantsi leemveliso.