Isixazululo

I-Sepiolite iwuhlobo lwamaminerali ane-fiber form, okuyisakhiwo se-fiber esisuka ngokushintshana sisuka odongeni lwezimbotshana ze-polyhedral kanye nesiteshi se-pore.Isakhiwo se-fiber siqukethe isakhiwo esinezingqimba, esakhiwe ngezingqimba ezimbili ze-Si-O-Si bond exhunywe i-silicon oxide tetrahedron ne-octahedron equkethe i-magnesium oxide phakathi, eyenza i-0.36 nm × 1.06nm pore yezinyosi.Isicelo sezimboni ze-Sepiolite ngokuvamile sidingai-sepiolite yokugaya impushana ukuze igaywe ibe yimpushana ye-sepiolite.I-HCMilling(Guilin Hongcheng) ingumkhiqizi ochwepheshe we i-sepiolite yokugaya.Isethi yonke yemishini yethu i-sepiolite yokugaya umugqa wokukhiqiza usetshenziswe kabanzi emakethe.Siyakwamukela ukuze ufunde kabanzi ku-inthanethi.Okulandelayo yisingeniso sokusetshenziswa kwe-sepiolite powder:

1. Izakhiwo ze-sepiolite

(1) Izakhiwo ze-Adsorption ze-sepiolite

I-Sepiolite iyisakhiwo esikhethekile esinezinhlangothi ezintathu esinendawo enkulu ethize kanye ne-porosity egqinsiwe, exhunywe yi-SiO2 tetrahedron ne-Mg-O octahedron.Kukhona futhi izikhungo eziningi ezine-acidic [SiO4] alkaline [MgO6] endaweni yayo, ngakho-ke i-sepiolite inokusebenza okuqinile kwe-adsorption.

Isakhiwo sekristalu ye-Sepiolite sinezindawo ezintathu ezihlukene ezisebenzayo ze-adsorption:

Eyokuqala ithi O athomu eSi-O tetrahedron;

Eyesibili amangqamuzana amanzi ahlangana ne-Mg2+ emaphethelweni e-Mg-O octahedron, ikakhulukazi akha amabhondi e-hydrogen nezinye izinto;

Eyesithathu inhlanganisela yebhondi ye-Si OH, ekhiqizwa ukwephulwa kwebhondi ye-silicon oxygen ku-tetrahedron ye-SiO2 bese ithola i-proton noma i-hydrocarbon molecule ukuze kunxeshezelwe amandla angekho.Ibhondi ye-Si OH ku-sepiolite ingasebenzisana nama-molecule akhangisiwe endaweni yawo ukuze kuqiniswe i-adsorption, futhi ingakha izibopho ezihlangene nezinto ezithile eziphilayo.

(2) Ukuzinza okushisayo kwe-sepiolite

I-Sepiolite i-inorganic material yobumba enokumelana okuzinzile kwezinga lokushisa eliphezulu.Ngesikhathi senqubo yokushisisa kancane kancane ukusuka ekushiseni okuphansi kuya ekushiseni okuphezulu, ukwakheka kwekristalu ye-sepiolite kudlule izigaba ezine zokuncipha kwesisindo:

Lapho izinga lokushisa langaphandle lifinyelela cishe ku-100 ℃, ama-molecule amanzi azolahlekelwa yi-sepiolite esigabeni sokuqala amanzi angama-zeolite ezimbotsheni, futhi ukulahlekelwa kwale ngxenye yama-molecule amanzi kufinyelela cishe ku-11% wesisindo esiphelele se-sepiolite.

Lapho izinga lokushisa langaphandle lifinyelela ku-130 ℃ kuya ku-300 ℃, i-sepiolite esigabeni sesibili izolahlekelwa ingxenye yokuqala yamanzi okuxhumana ne-Mg2+, okungaba ngu-3% wesisindo sayo.

Lapho izinga lokushisa langaphandle lifinyelela ku-300 ℃ kuya ku-500 ℃, i-sepiolite esigabeni sesithathu izolahlekelwa ingxenye yesibili yamanzi okuxhumana nge-Mg2+.

Lapho izinga lokushisa langaphandle lifinyelela ngaphezu kuka-500 ℃, amanzi esakhiwo (- OH) ahlanganiswe ne-octahedron ngaphakathi azolahleka esigabeni sesine.Isakhiwo se-fiber sepiolite kulesi sigaba sibhujiswe ngokuphelele, ngakho-ke inqubo ayinakuguqulwa.

(3) Ukumelana nokubola kwe-sepiolite

I-Sepiolite ngokwemvelo ine-asidi enhle ne-alkali ukumelana.Uma imaphakathi nesixazululo se-pH value<3 noma>10, ukwakheka kwangaphakathi kwe-sepiolite kuzogqwala.Uma iphakathi kuka-3-10, i-sepiolite ibonisa ukuzinza okuqinile.Kubonisa ukuthi i-sepiolite ine-asidi eqinile kanye nokumelana ne-alkali, okuyisizathu esibalulekile sokuthi kungani i-sepiolite isetshenziswa njenge-inorganic core ukulungiselela iMaya njenge-blue pigment.

(4) Izakhiwo ze-Catalytic ze-sepiolite

I-Sepiolite ingumthwali we-catalyst oshibhile futhi osebenzayo.Isizathu esiyinhloko ukuthi i-sepiolite ingathola indawo ethize ephakeme kanye nesakhiwo sayo esinezimbotshana ezinezingqimba ngemuva kokuguqulwa kwe-asidi, okuyizimo ezivumayo zokusebenzisa i-sepiolite njenge-catalyst carrier.I-Sepiolite ingasetshenziswa njengesithwali ukwenza i-photocatalyst ngokusebenza okuhle kakhulu kwe-catalytic nge-TiO2, esetshenziswa kabanzi ku-hydrogenation, i-oxidation, i-denitrification, i-desulfurization, njll.

(5) Ukushintshaniswa kwe-ion kwe-sepiolite

Indlela yokushintshanisa i-ion isebenzisa amanye ama-cations ensimbi ane-polarization enamandla ukuze athathe indawo ye-Mg2+ ekugcineni kwe-octahedron esakhiweni se-sepiolite, ngaleyo ndlela iguqule isikhala sesendlalelo sayo ne-acidity engaphezulu, futhi ithuthukise ukusebenza kokukhangiswa kwe-sepiolite.Ama-ion ensimbi e-sepiolite aphethwe ama-ion e-magnesium, anenani elincane le-aluminium ion kanye nenani elincane lamanye ama-cations.Ukwakheka okukhethekile kanye nesakhiwo se-sepiolite kwenza kube lula ukuthi ama-cation esakhiweni sawo ashintshisane namanye ama-cation.

(6) Izakhiwo ze-Rheological ze-sepiolite

I-Sepiolite ngokwayo iwumumo wenduku ezacile, kodwa eziningi zazo zinqwabelaniswa zibe izinyanda ezinokuhleleka okungajwayelekile.Uma i-sepiolite incibilika emanzini noma kwezinye izincibilikisi ze-polar, lezi zibopho zizohlakazeka ngokushesha futhi zihlangane ngokuhlelekile ukuze zenze inethiwekhi ye-fiber eyinkimbinkimbi nokugcinwa kwe-solvent okungajwayelekile.Lezi zinhlobo zenethiwekhi zakha ukumiswa nge-rheology eqinile kanye ne-viscosity ephezulu, ebonisa izakhiwo eziyingqayizivele ze-rheological ze-sepiolite.

Ngaphezu kwalokho, i-sepiolite ibuye ibe nezici zokufakelwa, i-decolorization, i-flame retardancy kanye nokunwebeka, enenani elikhulu lesicelo emkhakheni wezimboni.

2. Izicelo Eziyinhloko ze-Sepioliteinqubo powder byI-Sepioliteumshini wokugaya

Ngokuthuthuka okusheshayo komnotho waseShayina, isidingo semakethe sezinto zokwakha ezinobungani nemvelo, izinto ezingeza inani eliphakeme siyakhula.I-Sepiolite iwuhlobo lwezinto ezingezona eziphilayo ezinozinzo oluhle ngenxa yesakhiwo sayo esikhethekile sekristalu, esingangcolisi, esivumelana nemvelo futhi esishibhile.Ngemuva kokucutshungulwa ngomshini wokugaya i-sepiolite, ingasetshenziswa kabanzi emikhakheni ehlukahlukene yezimboni, njengokwakhiwa kwezakhiwo, ubuchwepheshe be-ceramic, ukulungiswa kwe-catalyst, i-pigment synthesis, ukucwengisiswa kwe-petroleum, ukuvikelwa kwemvelo, amapulasitiki, njll., okunomthelela omkhulu ezimbonini zaseChina. ukuthuthukiswa.Ngesikhathi esifanayo, abantu baye baqala ukunaka kakhulu isicelo esisha kanye nokuthuthukiswa kobuchwepheshe be-sepiolite, futhi kusheshiswe ukwakhiwa kochungechunge lwezimboni ze-sepiolite eziyinkimbinkimbi ukuze kuxazululwe ukushoda kwamanje kwe-sepiolite emakethe Inani eliphansi elingeziwe lemikhiqizo.