• Alumina budada ah iyo nooca α-alumina powaer

Alumina budada ah iyo nooca α-alumina powaer

Sharaxaad Gaaban:

Budada aluminiumku waxay leedahay sifooyinka caabbinta heerkulka sare, caabbinta daxalka iyo guryaha deggan.Caadi ahaan loo isticmaalo sida reagents gorfaynta, fuuqbaxa dareerayaasha organic, adsorbents, kicinta falcelinta organic, abrasives, wakiilada polishing, alaabta ceeriin ee dhalaalay aluminium, iyo alaabta refractory.


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Shan sifo oo nadiif ah oo budada aluminium ah

1. caabbinta kiimikada;
2. Nadiifinta sare ee alumina, maadada alumina waxay ka weyn tahay 99%;
3. Iska caabin heerkul sarreeya, isticmaalka caadiga ah ee 1600 ℃, 1800 ℃-gaaban;
4. U adkaysta qabow degdeg ah iyo kulayl, ma fududa in la qarxiyo;
5. Waxay qabataa grouting waxayna leedahay cufnaan sare.
1. Isticmaalka budada aluminium ee nooca α

In shabka crystal ee α-nooca budada alumina, ions ogsijiin si dhow ayaa lagu soo buuxiyey ee hexagons, iyo Al3+ si summetrically qaybiyey in xarunta isuduwidda octahedral oo ay ku wareegsan yihiin ions oxygen.Tamarta suufku aad bay u weyn tahay, markaa barta dhalaalka iyo karkarinta ayaa aad u sarreeya.α-oxidation Aluminum waa mid aan lagu milmi karin biyaha iyo aashitada.Waxa kale oo loo yaqaan aluminium oxide warshadaha.Waa alaabta aasaasiga ah ee aasaasiga ah ee samaynta aluminium birta;waxa kale oo loo isticmaalaa in lagu sameeyo leben kala duwan oo refractory, weel refractory, tuubooyinka refractory, iyo qalabka tijaabada heerkulka sare;Waxa kale oo loo isticmaali karaa sidii abrasives iyo olol dib u dhigista.Wakiilada, buuxinta, iwm;Nadiifinta sare ee α-nooca alumina sidoo kale waa alaabta ceeriin ee wax soo saarka corundum macmal ah, ruby ​​iyo sapphire;waxa kale oo loo isticmaalaa soo saarida wareegyo isku dhafan oo baaxad weyn oo casri ah.

Alumina firfircooni waxay leedahay awoodda xayeysiinta ee gaaska, uumiga biyaha iyo xoogaa qoyaan dareere ah.Ka dib markii adsorption-ku buuxsamo, waxaa lagu soo noolayn karaa kuleyliyaha qiyaastii 175-315 ° C si meesha looga saaro biyaha.Adsorption iyo sarakicidda waxaa la samayn karaa dhowr jeer.Marka laga soo tago in loo isticmaalo qallajiye ahaan, waxa ay sidoo kale xajin kartaa uumiga saliidda ka soo baxa ogsijiinta wasakhaysan, hydrogen, carbon dioxide, gaaska dabiiciga ah, iwm. Waxa kale oo loo isticmaali karaa kicinta iyo kicinta side iyo chromatography.


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