Kawirikawiri, njerwa zokhala ndi aluminiyamu yambiri siziyenera kugwiritsidwa ntchito mu ng'anjo ya alkaline atmosphere. Chifukwa chakuti alkaline ndi acidic medium zilinso ndi chlorine, zimalowa m'zigawo zakuya za njerwa zokhala ndi alumina yambiri mu mawonekedwe a gradient, zomwe zimapangitsa kuti njerwa yolimba igwe.
Njerwa ya aluminiyamu yokhala ndi aluminiyamu yambiri ikatha kuwonongeka kwa mlengalenga wa alkaline imakhala ndi ming'alu yopingasa. Kuwonongekako kumapangidwa ndi imvi yamafuta, mpweya woyaka, ndi zinthu zina za alkaline muzinthu zina. Zinthuzi zimagwirizana ndi galasi ndi miyala ya mullite mu njerwa ya aluminiyamu yokhala ndi aluminiyamu yambiri.
Njerwa za aluminiyamu zambiri zomwe zimakhala ndi dzimbiri la alkaline zidzawonekera pamwamba. Mpweya woyaka udzapanganso lure nitrate, kusungunuka kwa madzi m'malo obisika a njerwa za aluminiyamu zambiri; momwe madzi oundana amapangira madziwo adzapanga gawo latsopano lovuta. Pamene ma nitrile opanda madzi akhudzana ndi vagram yopangidwa, njira yotsutsana ndi nthunzi idzachitika, zomwe zimapangitsa kuti njerwa za aluminiyamu zambiri zisweke kapena kugwa. Kuphatikiza apo, dzimbiri la kutentha ndi loopsa kwambiri pa dzimbiri la njerwa zotsutsana ndi madzi. Chifukwa cha kuwonongeka kwa Fang quartz, Skywine, ndi quartz crystal silica. Kugwiritsa ntchito matailosi amoto kudzakhala koopsa kwambiri kuposa ma noodle ozizira.
Kuwonongeka kwa njerwa za silicon dioxide nakonso n'koopsa kwambiri. Silika imasungunuka mu gawo lamadzimadzi la aluminiyamu yambiri. Nitrate yosungunuka komanso miyala ya silicon yomwe imasungunuka pang'ono imapanga gawo lalikulu lamadzimadzi. Silika ikachuluka mu njerwa, gawo lamadzimadzi limakulanso. Magawo ochulukirapo amadzimadzi amawononga njerwa zambiri za aluminiyamu. Silika ya silicon imawonongekanso ndi njerwa. Chifukwa silica yaulere imadyedwa, gawo la Mo Lai Shi lidzawonongeka. Pambuyo poyankha kwa lickle nitrate ndi mullite stone zimatha kuyambitsa kufalikira kowononga kwa njerwa zambiri za aluminiyamu.
Njerwa za aluminiyamu zazitali zimalimbana bwino ndi kutentha kwambiri komanso kusweka. Zimagwiritsidwa ntchito kwambiri pakupanga ng'anjo zosiyanasiyana zamafakitale, monga ng'anjo zophulika, ng'anjo za mpweya wotentha, ndi ma uvuni ozungulira. Komabe, mu ng'anjo yamafakitale yokhala ndi mpweya wa alkaline, kugwiritsa ntchito njerwa za alumina zazitali kumakhala kochepa.
Kapangidwe ka mankhwala a njerwa zambiri za alumina kamapangitsa kuti zisawonongeke ndi asidi. Komabe, m'malo okhala ndi alkaline yambiri, monga ma uvuni a simenti kapena ng'anjo zagalasi, njerwa zambiri za aluminiyamu zimakumana ndi alkaline metal oxides, zomwe zimapangitsa kuti njerwazo zisweke ndikusweka. Kuchitapo kanthu pakati pa njerwa za Al2O3 ndi alkaline metal oxides nthawi zambiri kumapangitsa kuti pakhale alkaline aluminosilicate gel, yomwe ili ndi malo otsika osungunuka ndipo imatha kuyenda mosavuta kudzera m'ming'alu.
Pofuna kuthetsa vutoli, njira zingapo zagwiritsidwa ntchito kuti ziwongolere kukana kwa njerwa za aluminiyamu zambiri ku malo okhala ndi alkaline. Yankho limodzi ndi kuwonjezera magnesia kapena spinel ku njerwa za alumina zambiri. Magnesia kapena spinel imagwirizana ndi ma alkali metal oxides kuti ipange magawo olimba a spinel, omwe angapangitse kuti njerwa za Al2O3 zisagwe chifukwa cha alkaline reaction. Yankho lina ndikugwiritsa ntchito chophimba choteteza pamwamba pa njerwa za alumina zambiri kuti zisakhudze mwachindunji malo okhala ndi alkaline.
Mwachidule, njerwa zazitali za aluminiyamu sizigwiritsidwa ntchito kwambiri pa ng'anjo ya mafakitale yokhala ndi mpweya wa alkaline. Kuti njerwa za Al2O3 zisamavutike kwambiri m'malo okhala ndi alkaline, ndikofunikira kuwonjezera mchere kapena zokutira zina kuti mupewe kuwononga ma oxide achitsulo cha alkaline. Ndikofunikira kusankha zinthu zoyenera pa ng'anjo ya mafakitale kuti muchepetse zoopsa zomwe zingachitike ndikusunga ndalama.
Nthawi yotumizira: Meyi-19-2023
