Yankho

Sepiolite ndi mtundu wa mchere wokhala ndi mawonekedwe a ulusi, womwe ndi mawonekedwe a ulusi womwe umachokera ku khoma la pore la polyhedral ndi pore channel.Kapangidwe ka CHIKWANGWANI kamakhala ndi mawonekedwe osanjikiza, omwe amapangidwa ndi zigawo ziwiri za Si-O-Si chomangira cholumikizidwa ndi silicon oxide tetrahedron ndi octahedron yokhala ndi magnesium oxide pakati, kupanga 0,36 nm × 1.06nm zisa pore.Kugwiritsa ntchito mafakitale a Sepiolite nthawi zambiri kumafunikiramphero ya sepiolite ufa kuti ukhale ufa wa sepiolite.HCMilling(Guilin Hongcheng) ndi katswiri wopanga mphero ya sepiolite.Gulu lonse la zida zathu mphero ya sepiolite kupanga mzere wagwiritsidwa ntchito kwambiri pamsika.Takulandilani kuti mudziwe zambiri pa intaneti.Zotsatirazi ndikuyambitsa kugwiritsa ntchito ufa wa sepiolite:

1. Katundu wa sepiolite

(1) Adsorption katundu wa sepiolite

Sepiolite ndi mawonekedwe apadera amitundu itatu okhala ndi malo akuluakulu enieni komanso osanjikiza porosity, omwe amalumikizidwa ndi SiO2 tetrahedron ndi Mg-O octahedron.Palinso malo ambiri a acidic [SiO4] alkaline [MgO6] pamwamba pake, kotero sepiolite imakhala ndi ntchito yamphamvu yotsatsa.

Sepiolite crystal structure ili ndi malo atatu osiyana adsorption apakati:

Woyamba ndi O atomu mu Si-O tetrahedron;

Yachiwiri ndi mamolekyu amadzi omwe amalumikizana ndi Mg2 + m'mphepete mwa Mg-O octahedron, makamaka kupanga zomangira za haidrojeni ndi zinthu zina;

Chachitatu ndi kuphatikiza kwa Si OH bond, komwe kumapangidwa ndi kusweka kwa silicon oxygen bond mu tetrahedron ya SiO2 ndikulandila pulotoni kapena molekyulu ya hydrocarbon kuti alipire zomwe zikusowa.Chomangira cha Si OH mu sepiolite chimatha kuyanjana ndi mamolekyu omwe amadsorbed pamwamba pake kuti alimbikitse kutsatsa, ndipo amatha kupanga zomangira za covalent ndi zinthu zina zamoyo.

(2) Kukhazikika kwamafuta a sepiolite

Sepiolite ndi dongo lopangidwa ndi dongo lokhazikika komanso kukana kutentha kwambiri.Pakuwotcha pang'onopang'ono kuchokera kutentha pang'ono mpaka kutentha kwambiri, mawonekedwe a kristalo a sepiolite adutsa magawo anayi ochepetsa thupi:

Kutentha kwakunja kukafika pafupifupi 100 ℃, mamolekyu amadzi omwe sepiolite adzataya gawo loyamba ndi madzi a zeolite mu pores, ndipo kutayika kwa gawo ili la mamolekyu amadzi kumafika pafupifupi 11% ya kulemera konse kwa sepiolite.

Kutentha kwakunja kukafika 130 ℃ mpaka 300 ℃, sepiolite mu gawo lachiwiri adzataya gawo loyamba la kugwirizana madzi ndi Mg2 +, amene ali pafupifupi 3% ya kulemera kwake.

Kutentha kwakunja kukafika ku 300 ℃ mpaka 500 ℃, sepiolite mu gawo lachitatu idzataya gawo lachiwiri la madzi ogwirizana ndi Mg2 +.

Kutentha kwakunja kukafika pamwamba pa 500 ℃, madzi opangidwa (- OH) ophatikizidwa ndi octahedron mkati adzatayika mu gawo lachinayi.Kapangidwe ka ulusi wa sepiolite pagawoli wawonongeka kwathunthu, kotero kuti njirayi ndi yosasinthika.

(3) Kukana kwa kutu kwa sepiolite

Sepiolite mwachilengedwe imakhala ndi asidi wabwino komanso kukana kwa alkali.Ikakhala pakati ndi yankho la pH mtengo <3 kapena> 10, mawonekedwe amkati a sepiolite adzawonongeka.Pamene ili pakati pa 3-10, sepiolite imasonyeza kukhazikika kwamphamvu.Zimasonyeza kuti sepiolite imakhala ndi asidi amphamvu komanso kukana kwa alkali, chomwe ndi chifukwa chofunika kwambiri chomwe sepiolite imagwiritsidwa ntchito ngati maziko opangira Maya ngati mtundu wa blue pigment.

(4) Zothandizira za sepiolite

Sepiolite ndi chonyamulira chotsika mtengo komanso chothandiza.Chifukwa chachikulu ndikuti sepiolite imatha kupeza malo apamwamba kwambiri komanso mawonekedwe ake osanjikiza a porous pambuyo pa kusinthidwa kwa asidi, zomwe zimakhala zabwino kugwiritsa ntchito sepiolite ngati chonyamulira chothandizira.Sepiolite angagwiritsidwe ntchito ngati chonyamulira kupanga photocatalyst ndi ntchito kwambiri chothandizira ndi TiO2, amene ankagwiritsa ntchito hydrogenation, makutidwe ndi okosijeni, denitrification, desulfurization, etc.

(5) Kusinthanitsa kwa ion kwa sepiolite

Njira yosinthira ion imagwiritsa ntchito ma cations ena azitsulo okhala ndi polarization yamphamvu kuti alowe m'malo mwa Mg2 + kumapeto kwa octahedron mu sepiolite, potero amasintha masinthidwe ake osanjikiza ndi acidity yapamtunda, ndikukulitsa magwiridwe antchito a sepiolite.Ma ion achitsulo a sepiolite amalamulidwa ndi ayoni a magnesium, okhala ndi ma ion a aluminiyamu pang'ono ndi ma cation ena ochepa.Kupanga kwapadera ndi kapangidwe ka sepiolite kumapangitsa kukhala kosavuta kuti ma cations mu kapangidwe kake kasinthane ndi ma cation ena.

(6) Rheological katundu wa sepiolite

Sepiolite palokha ndi mawonekedwe a ndodo yowonda, koma ambiri amawunjika m'mitolo mosakhazikika.Sepiolite ikasungunuka m'madzi kapena zosungunulira zina za polar, mitolo iyi imabalalika mwachangu ndikuphatikizana mosagwirizana kuti ipange ukonde wovuta wa fiber wokhala ndi zosungunulira zosakhazikika.Maukonde awa amapanga kuyimitsidwa ndi rheology amphamvu komanso mamasukidwe apamwamba, kuwonetsa mawonekedwe apadera a sepiolite.

Kuphatikiza apo, sepiolite imakhalanso ndi mawonekedwe a kutchinjiriza, decolorization, retardancy yamoto komanso kufalikira, komwe kuli ndi phindu lalikulu pantchito zamafakitale.

2. Ntchito zazikulu za Sepioliteufa ndondomeko ndiSepiolitemphero

Ndichitukuko chofulumira chachuma cha China, kufunikira kwa msika kwa zinthu zokomera chilengedwe, zowongoka kwambiri zikukula.Sepiolite ndi mtundu wa zinthu zopanda chilengedwe zomwe zimakhala zokhazikika bwino chifukwa cha mawonekedwe ake apadera a kristalo, omwe alibe zowononga, zachilengedwe komanso zotsika mtengo.Pambuyo kukonzedwa ndi sepiolite akupera makina, akhoza ankagwiritsa ntchito m'madera osiyanasiyana mafakitale, monga zomangamanga, teknoloji ceramic, chothandizira kukonzekera, pigment kaphatikizidwe, kuyenga mafuta, kuteteza chilengedwe, mapulasitiki, etc., amene zimakhudza kwambiri mafakitale China. chitukuko.Panthawi imodzimodziyo, anthu ayamba kumvetsera kwambiri kugwiritsa ntchito kwatsopano ndi chitukuko cha teknoloji ya sepiolite, ndikufulumizitsa ntchito yomanga makina opanga makina a sepiolite kuti athetse kusowa kwaposachedwa kwa sepiolite pamsika.