Chiyambi ndi kugwiritsa ntchito alumina yoyendetsedwa

Chidule cha alumina yoyendetsedwa
Alumina yogwiritsidwa ntchito, yomwe imadziwikanso kuti activated bauxite, imatchedwa activated alumina mu Chingerezi. Alumina yomwe imagwiritsidwa ntchito mu ma catalyst nthawi zambiri imatchedwa "activated alumina". Ndi chinthu cholimba chokhala ndi mabowo, chofalikira kwambiri chokhala ndi malo akuluakulu pamwamba. Malo ake okhala ndi mabowo ang'onoang'ono ali ndi makhalidwe ofunikira pa catalysis, monga momwe zimakhalira ndi ma adsorption, ntchito ya pamwamba, kukhazikika kwa kutentha kwabwino, ndi zina zotero, kotero imagwiritsidwa ntchito kwambiri ngati chothandizira komanso chonyamulira cha ma catalyst pazochitika za mankhwala.
Mafuta ozungulira omwe amayamwa ndi tinthu toyera tozungulira tokhala ndi mapokoso. Alumina yoyendetsedwayo ili ndi kukula kofanana kwa tinthu, pamwamba pake posalala, mphamvu zambiri zamakaniko, hygroscopicity yamphamvu, siitupa kapena kusweka madzi akayamwa, ndipo imakhalabe yosasinthika. Siimakhala ndi poizoni, yopanda fungo, ndipo siisungunuka m'madzi ndi ethanol.

Alumina
Sisungunuka m'madzi ndipo imatha kusungunuka pang'onopang'ono mu sulfuric acid yokhazikika. Ingagwiritsidwe ntchito kuyeretsa aluminiyamu yachitsulo komanso ndi chinthu chopangira zinthu zophikira, porcelain, zinthu zotsutsa komanso miyala yamtengo wapatali yopangidwa.
Alumina yomwe imagwiritsidwa ntchito ngati adsorbent, catalyst ndi catalyst carrier imatchedwa "activated alumina". Ili ndi mawonekedwe a porosity, dispersion yayikulu komanso malo akuluakulu apadera. Imagwiritsidwa ntchito kwambiri pochiza madzi, petrochemical, fine chemical, biological and pharmaceutical fields.

Makhalidwe a alumina
1. Malo akuluakulu apadera: alumina yoyatsidwa imakhala ndi malo apadera kwambiri. Poyang'anira bwino dongosolo loyatsira la alumina, alumina yoyatsidwa yokhala ndi malo enaake okwana 360m2 / G ikhoza kukonzedwa. Alumina yoyatsidwa yokonzedwa pogwiritsa ntchito colloidal aluminiyamu hydroxide yomwe yawonongeka ndi NaAlO2 ngati zinthu zopangira ili ndi kukula kochepa kwambiri kwa ma pore ndi malo enaake okwana 600m2 / g.
2. Kapangidwe ka kukula kwa ma pore osinthika: Kawirikawiri, zinthu zokhala ndi ma pore apakati zimatha kukonzedwa pophika ndi aluminiyamu hydroxide yoyera. Zinthu zazing'ono zokhala ndi ma pore ocheperako zimatha kukonzedwa pokonza alumina yoyendetsedwa ndi aluminiyamu, ndi zina zotero. pomwe alumina yoyendetsedwa ndi ma pore ochulukirapo imatha kukonzedwa powonjezera zinthu zina zachilengedwe, monga ethylene glycol ndi ulusi, zikayaka.
3. Pamwamba pake pali asidi ndipo pali kutentha kokhazikika.

Ntchito ya alumina yoyendetsedwa
Alumina yogwira ntchito ndi ya gulu la alumina ya mankhwala, yomwe imagwiritsidwa ntchito kwambiri ngati adsorbent, water purifier, catalyst ndi catalyst carrier. Alumina yogwira ntchito imatha kunyamula madzi m'mpweya, nthunzi ya madzi ndi zina zamadzimadzi. Pambuyo poti adsorbent yadzaza, imatha kutenthedwa pa madigiri 175-315. D egree. Adsorption ndi reactivation zitha kuchitika kangapo.
Kuwonjezera pa kugwiritsidwa ntchito ngati desiccant, imathanso kuyamwa nthunzi ya mafuta odzola kuchokera ku mpweya woipa, haidrojeni, kaboni dioksaidi, gasi wachilengedwe, ndi zina zotero. Ndipo ingagwiritsidwe ntchito ngati chothandizira komanso chothandizira kusanthula kwa chromatographic.
Itha kugwiritsidwa ntchito ngati chotsukira madzi akumwa okhala ndi fluorine yambiri (yomwe imatha kuchotsa fluorine yambiri), chotsukira madzi ozungulira alkanes popanga alkylbenzene, chotsukira ndi kubwezeretsa asidi wa mafuta osinthira, chotsukira mpweya mumakampani opanga mpweya, makampani opanga nsalu ndi zamagetsi, chotsukira mpweya wodzipangira wokha, komanso chotsukira ndi choyeretsera feteleza wa mankhwala, kuuma kwa petrochemical ndi mafakitale ena.