ʻO Sepiolite kahi ʻano mineral me ke ʻano fiber, ʻo ia kahi ʻano fiber e hoʻolōʻihi ana mai ka paia pore polyhedral a me ke kahawai pore. Loaʻa i ka ʻano fiber kahi ʻano layered, i haku ʻia me ʻelua papa o ka pilina Si-O-Si i hoʻopili ʻia me ka silicon oxide tetrahedron a me ka octahedron e loaʻa ana ka magnesium oxide ma waena, e hana ana i ka pore honeycomb 0.36 nm × 1.06nm. Pono ka noi ʻoihana Sepiolite.wili wili sepiolite pauka e wili ʻia i pauka sepiolite. He mea hana ʻoihana ʻo HCMilling (Guilin Hongcheng) wili wili sepioliteʻO ka hoʻonohonoho holoʻokoʻa o kā mākou wili wili sepiolite Ua hoʻohana nui ʻia ka laina hana ma ka mākeke. Welina e aʻo hou aku ma ka pūnaewele. Eia kahi hoʻolauna i ka hoʻohana ʻana i ka pauka sepiolite:
1. Nā waiwai o ka sepiolite
(1) Nā waiwai adsorption o ka sepiolite
He ʻano kūikawā ʻekolu-dimensional ʻo Sepiolite me ka ʻili ākea kikoʻī nui a me ka porosity papa, kahi i hoʻopili ʻia e ka SiO2 tetrahedron a me Mg-O octahedron. Nui nō hoʻi nā kikowaena acidic [SiO4] alkaline [MgO6] ma kona ʻili, no laila he hana adsorption ikaika ko ka sepiolite.
ʻEkolu mau kikowaena hana adsorption like ʻole o ke ʻano kristal Sepiolite:
ʻO ka mua ʻo O atom i loko o Si-O tetrahedron;
ʻO ka lua, ʻo ia nā molekala wai e hoʻopili pū me Mg2+ ma ka lihi o Mg-O octahedron, e hana nui ana i nā pilina hydrogen me nā mea ʻē aʻe;
ʻO ke kolu, ʻo ia ka hui pū ʻana o ka pilina Si OH, i hana ʻia e ka haki ʻana o ka pilina oxygen silicon i loko o ka tetrahedron SiO2 a loaʻa iā ia kahi molekole proton a hydrocarbon paha e uku no ka hiki ke nalowale. Hiki i ka pilina Si OH i loko o ka sepiolite ke launa pū me nā molekole i hoʻopili ʻia ma luna o kona ʻili e hoʻoikaika i ka adsorption, a hiki ke hana i nā pilina covalent me kekahi mau mea organik.
(2) Ke kūpaʻa wela o ka sepiolite
He mea lepo inorganic ʻo Sepiolite me ke kūpaʻa paʻa i ka mahana kiʻekiʻe. I ka wā o ke kaʻina hana hoʻomehana mālie mai ka mahana haʻahaʻa a i ka mahana kiʻekiʻe, ua hala ke ʻano kristal o ka sepiolite i ʻehā mau pae hoʻemi kaumaha:
Ke hiki aku ka mahana o waho ma kahi o 100 ℃, ʻo nā mole wai e nalowale ai ka sepiolite i ka pae mua he wai zeolite i loko o nā pores, a ʻo ka nalowale ʻana o kēia ʻāpana o nā mole wai e hiki aku ana ma kahi o 11% o ke kaumaha holoʻokoʻa o ka sepiolite.
Ke hiki ka mahana o waho i 130 ℃ a i 300 ℃, e nalowale ka sepiolite i ka lua o ka pae i ka hapa mua o ka wai hoʻohui me Mg2+, ʻo ia hoʻi ma kahi o 3% o kona nuipa.
Ke hiki ka mahana o waho i 300 ℃ a i 500 ℃, e nalowale ka sepiolite i ke kolu o ka pae i ka hapa lua o ka wai hoʻohui me Mg2+.
Ke piʻi ka mahana o waho ma luna o 500 ℃, e nalowale ana ka wai hoʻonohonoho (- OH) i hui pū ʻia me ka octahedron i loko i ka pae ʻehā. Ua luku loa ʻia ke ʻano o ka fiber o ka sepiolite i kēia pae, no laila ʻaʻole hiki ke hoʻihoʻi ʻia ke kaʻina hana.
(3) Ke kūpaʻa ʻana i ka palaho o ka sepiolite
He kūlohelohe ko Sepiolite i ke kūpaʻa maikaʻi i ka waikawa a me ka alkali. Ke noho ia i loko o ka medium me ka waiwai pH solution <3 a i ʻole>10, e pala ka ʻano o loko o ka sepiolite. Ke noho ia ma waena o 3-10, hōʻike ka sepiolite i ke kūpaʻa ikaika. Hōʻike ia he kūpaʻa ikaika ko ka sepiolite i ka waikawa a me ka alkali, ʻo ia ke kumu nui e hoʻohana ʻia ai ka sepiolite ma ke ʻano he kumu inorganic e hoʻomākaukau ai i ka pigment polū e like me Maya.
(4) Nā waiwai catalytic o ka sepiolite
He mea lawe catalyst haʻahaʻa a kūpono hoʻi ʻo Sepiolite. ʻO ke kumu nui, hiki i ka sepiolite ke loaʻa kahi ʻili kikoʻī kiʻekiʻe a me kona ʻano porous papa ponoʻī ma hope o ka hoʻololi ʻana o ka waikawa, ʻo ia nā kūlana kūpono no ka hoʻohana ʻana i ka sepiolite ma ke ʻano he mea lawe catalyst. Hiki ke hoʻohana ʻia ʻo Sepiolite ma ke ʻano he mea lawe e hana i kahi photocatalyst me ka hana catalytic maikaʻi loa me TiO2, kahi i hoʻohana nui ʻia i ka hydrogenation, oxidation, denitrification, desulfurization, etc.
(5) Hoʻololi ʻana o ka ion o ka sepiolite
Hoʻohana ke ʻano hoʻololi ion i nā cation metala ʻē aʻe me ka polarization ikaika e pani iā Mg2+ ma ka hopena o ka octahedron i ke ʻano sepiolite, no laila e hoʻololi ana i kona kaʻawale ʻana o ka papa a me ka acidity o ka ʻili, a hoʻonui i ka hana adsorption o ka sepiolite. Hoʻomalu ʻia nā ion magnesium i nā ion metala o ka sepiolite, me kahi liʻiliʻi o nā ion alumini a me kahi liʻiliʻi o nā cation ʻē aʻe. ʻO ka hoʻohui kūikawā a me ke ʻano o ka sepiolite e maʻalahi ai i nā cations i loko o kona ʻano ke hoʻololi me nā cation ʻē aʻe.
(6) Nā waiwai rheological o ka sepiolite
He ʻano koʻokoʻo lahilahi ʻo Sepiolite ponoʻī, akā ua hoʻopili ʻia ka hapa nui o lākou i loko o nā puʻupuʻu me ke kauoha kūpono ʻole. Ke hoʻoheheʻe ʻia ka sepiolite i loko o ka wai a i ʻole nā mea hoʻoheheʻe polar ʻē aʻe, e hoʻopuehu koke ʻia kēia mau puʻupuʻu a hui pū me ke ʻano ʻole e hana i kahi pūnaewele fiber paʻakikī me ka paʻa ʻana o ka solvent kūpono ʻole. Hoʻokumu kēia mau pūnaewele i kahi hoʻokuʻu me ka rheology ikaika a me ka viscosity kiʻekiʻe, e hōʻike ana i nā waiwai rheological kū hoʻokahi o ka sepiolite.
Eia kekahi, loaʻa i ka sepiolite nā ʻano o ka insulation, decolorization, flame retardancy a me ka expansibility, kahi waiwai nui no ka hoʻohana ʻana i ke kahua ʻoihana.
2. Nā Hoʻohana Nui o Sepiolitekaʻina hana pauka eʻO Sepiolitewili wili
Me ka wikiwiki o ka hoʻomohala ʻana o ka hoʻokele waiwai o Kina, ke ulu nei ke koi o ka mākeke no nā mea pili i ke kaiapuni a waiwai nui. ʻO Sepiolite kahi ʻano mea inorganic me ke kūpaʻa maikaʻi ma muli o kona ʻano kristal kūikawā, ʻaʻohe haumia, pili i ke kaiapuni a makepono hoʻi. Ma hope o ka hana ʻia ʻana e ka mīkini wili sepiolite, hiki ke hoʻohana nui ʻia ma nā ʻano ʻoihana like ʻole, e like me ke kuhikuhipuʻuone, ʻenehana keramika, hoʻomākaukau catalyst, synthesis pigment, hoʻomaʻemaʻe petroleum, palekana kaiapuni, plastics, a pēlā aku, he hopena nui ia i ka hoʻomohala ʻana o ka ʻoihana o Kina. I ka manawa like, ua hoʻomaka ka poʻe e nānā nui aku i ka noi hou a me ka hoʻomohala ʻenehana o ka sepiolite, a hoʻolalelale i ke kūkulu ʻana i kahi kaulahao ʻoihana sepiolite paʻakikī e hoʻoponopono i ka nele o kēia manawa o ka sepiolite ma ka mākeke. Waiwai haʻahaʻa o nā huahana.
Ka manawa hoʻouna: Dec-28-2022
