Yankho

Sepiolite ndi mtundu wa mchere wokhala ndi mawonekedwe a ulusi, womwe ndi kapangidwe ka ulusi komwe kamafalikira mosiyanasiyana kuchokera ku khoma la pore la polyhedral ndi njira ya pore. Kapangidwe ka ulusi kamakhala ndi kapangidwe ka zigawo, komwe kamapangidwa ndi zigawo ziwiri za Si-O-Si bond yolumikizidwa ndi silicon oxide tetrahedron ndi octahedron yokhala ndi magnesium oxide pakati, ndikupanga 0.36 nm × 1.06nm honeycomb pore. Kugwiritsa ntchito kwa Sepiolite m'mafakitale nthawi zambiri kumafunamphero yopukusira ya sepiolite ufa wophwanyidwa kukhala ufa wa sepiolite. HCMilling (Guilin Hongcheng) ndi katswiri wopanga mphero yopukusira ya sepioliteZida zonse za mphero yopukusira ya sepiolite Mzere wopanga wagwiritsidwa ntchito kwambiri pamsika. Takulandirani kuti mudziwe zambiri pa intaneti. Izi ndi chiyambi cha kugwiritsa ntchito ufa wa sepiolite:

1. Katundu wa sepiolite

(1) Kapangidwe ka sepiolite kokhudza kuyamwa kwa madzi

Sepiolite ndi kapangidwe kapadera ka magawo atatu komwe kali ndi malo akuluakulu komanso porosity yokhala ndi zigawo, komwe kamalumikizidwa ndi SiO2 tetrahedron ndi Mg-O octahedron. Palinso malo ambiri okhala ndi acidic [SiO4] alkaline [MgO6] pamwamba pake, kotero sepiolite imakhala ndi mphamvu yolimba yolowetsa madzi.

Kapangidwe ka kristalo ka Sepiolite kali ndi malo atatu osiyana ogwiritsira ntchito adsorption:

Yoyamba ndi atomu ya O mu tetrahedron ya Si-O;

Chachiwiri ndi mamolekyu amadzi omwe amagwirizana ndi Mg2+ m'mphepete mwa octahedron ya Mg-O, makamaka kupanga ma bond a haidrojeni ndi zinthu zina;

Chachitatu ndi kuphatikiza kwa Si OH bond, komwe kumachitika chifukwa cha kusweka kwa silicon oxygen bond mu SiO2 tetrahedron ndipo kumalandira proton kapena hydrocarbon molecule kuti ikwaniritse mphamvu yosowa. Si OH bond mu sepiolite imatha kuyanjana ndi mamolekyu omwe amamatiridwa pamwamba pake kuti alimbitse adsorption, ndipo imatha kupanga ma covalent bond ndi zinthu zina zachilengedwe.

(2) Kukhazikika kwa kutentha kwa sepiolite

Sepiolite ndi dongo lopangidwa ndi zinthu zachilengedwe lomwe silimatentha kwambiri. Pa kutentha pang'onopang'ono kuyambira kutentha kochepa mpaka kutentha kwambiri, kapangidwe ka kristalo ka sepiolite kadutsa magawo anayi ochepetsa thupi:

Pamene kutentha kwakunja kufika pafupifupi 100 ℃, mamolekyu amadzi omwe sepiolite idzataya pa gawo loyamba ndi madzi a zeolite m'mabowo, ndipo kutayika kwa gawo ili la mamolekyu amadzi kumafika pafupifupi 11% ya kulemera konse kwa sepiolite.

Pamene kutentha kwakunja kufika pa 130 ℃ mpaka 300 ℃, sepiolite mu gawo lachiwiri idzataya gawo loyamba la madzi ogwirizana ndi Mg2+, lomwe ndi pafupifupi 3% ya kulemera kwake.

Pamene kutentha kwakunja kufika pa 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 mu gawo ili kawonongeka kwathunthu, kotero njirayi singathe kubwezeretsedwanso.

(3) Kukana dzimbiri kwa sepiolite

Sepiolite mwachibadwa imakhala ndi kukana kwabwino kwa asidi ndi alkali. Ikakhala pakati pa pH ya yankho <3 kapena>10, kapangidwe ka mkati mwa sepiolite kamawonongeka. Ikakhala pakati pa 3-10, sepiolite imawonetsa kukhazikika kwamphamvu. Zimasonyeza kuti sepiolite ili ndi kukana kwamphamvu kwa asidi ndi alkali, chomwe ndi chifukwa chofunikira chomwe sepiolite imagwiritsidwa ntchito ngati maziko osapangidwa kuti akonze utoto wabuluu wa Maya.

(4) Mphamvu zoyambitsa sepiolite

Sepiolite ndi chonyamulira chotsika mtengo komanso chothandiza kwambiri. Chifukwa chachikulu ndichakuti sepiolite imatha kupeza malo apamwamba kwambiri komanso kapangidwe kake ka ma porous pambuyo posintha asidi, zomwe ndi zinthu zabwino zogwiritsira ntchito sepiolite ngati chonyamulira chothandizira. Sepiolite ingagwiritsidwe ntchito ngati chonyamulira kupanga photocatalyst yokhala ndi magwiridwe antchito abwino kwambiri a catalytic ndi TiO2, yomwe imagwiritsidwa ntchito kwambiri mu hydrogenation, oxidation, denitrification, desulfurization, ndi zina zotero.

(5) Kusinthana kwa ma ion a sepiolite

Njira yosinthira ma ion imagwiritsa ntchito ma cation ena achitsulo okhala ndi polarization yamphamvu kuti alowe m'malo mwa Mg2+ kumapeto kwa octahedron mu kapangidwe ka sepiolite, motero kusintha malo ake okhala ndi acidity pamwamba, ndikuwonjezera magwiridwe antchito a sepiolite. Ma ion achitsulo a sepiolite amalamulidwa ndi ma magnesium ions, okhala ndi ma ion ochepa a aluminiyamu ndi ma cation ena ochepa. Kapangidwe kapadera ndi kapangidwe ka sepiolite kumapangitsa kuti ma cation omwe ali mu kapangidwe kake azitha kusinthana mosavuta ndi ma cation ena.

(6) Kapangidwe ka sepiolite m'thupi

Sepiolite yokha ndi yopyapyala ngati ndodo, koma ambiri a iwo amaunjikana m'magulu okhala ndi dongosolo losakhazikika. Pamene sepiolite isungunuka m'madzi kapena zinthu zina zosungunulira za polar, magulu awa amafalikira mwachangu ndikusakanikirana mosakhazikika kuti apange netiweki yovuta ya ulusi yokhala ndi kusungidwa kosakhazikika kwa zosungunulira. Mapangidwe a netiweki awa amapanga kuyimitsidwa yokhala ndi rheology yamphamvu komanso kukhuthala kwakukulu, kusonyeza mawonekedwe apadera a rheological a sepiolite.

Kuphatikiza apo, sepiolite ilinso ndi mawonekedwe a kutchinjiriza, kupukuta utoto, kuchedwa kwa moto komanso kukula, zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale.

2. Ntchito Zazikulu za Sepiolitenjira ya ufa ndiSepiolitemphero yopera

Chifukwa cha kukula kwachuma cha China mwachangu, kufunikira kwa msika kwa zinthu zosawononga chilengedwe komanso zowonjezera mtengo kukukulirakulira. Sepiolite ndi mtundu wa zinthu zopanda chilengedwe zomwe zimakhala zokhazikika bwino chifukwa cha kapangidwe kake kapadera ka kristalo, komwe sikuwononga chilengedwe, sikuwononga chilengedwe komanso kotsika mtengo. Pambuyo pokonzedwa ndi makina opukutira a sepiolite, imatha kugwiritsidwa ntchito kwambiri m'magawo osiyanasiyana amafakitale, monga zomangamanga, ukadaulo wa ceramic, kukonzekera catalyst, kupanga utoto, kuyeretsa mafuta, kuteteza chilengedwe, mapulasitiki, ndi zina zotero, zomwe zimakhudza kwambiri chitukuko cha mafakitale aku China. Nthawi yomweyo, anthu ayamba kuyang'ana kwambiri pakugwiritsa ntchito kwatsopano ndi chitukuko cha ukadaulo wa sepiolite, ndikufulumizitsa kumanga unyolo wamakono wamakampani a sepiolite kuti athetse kusowa kwa sepiolite pamsika. Mtengo wotsika wazinthu zowonjezera.