Isishwankathelo se-alumina esebenzayo
I-alumina esebenzayo, ekwabizwa ngokuba yi-bauxite esebenzayo, ibizwa ngokuba yi-alumina esebenzayo ngesiNgesi. I-alumina esetyenziswa kwii-catalysts idla ngokubizwa ngokuba yi "activated alumina". Yinto eqinileyo, ehlakazekileyo kakhulu enendawo enkulu. Umphezulu wayo we-microporous uneempawu ezifunekayo kwi-catalysis, ezifana nokusebenza kwe-adsorption, umsebenzi ongaphezulu, ukuzinza kwe-thermal, njl.
I-alumina engqukuva esebenzayo yoxinzelelo lwe-oyile i-adsorbent ngamasuntswana amhlophe angqukuva. I-alumina esebenzayo inobungakanani besuntswana elifanayo, indawo egudileyo, amandla aphezulu omatshini, i-hygroscopicity eyomeleleyo, ayidumba kwaye iqhekeke emva kokufunxwa kwamanzi, kwaye ihlala ingatshintshi. Ayinatyhefu, ayinavumba, kwaye ayinyibiliki emanzini nakwi-ethanol.
Alumina
Ayinyibiliki emanzini kwaye inokunyibilika kancinane kwiasidi yesulfuric egxininisiweyo. Ingasetyenziselwa ukucokisa i-aluminiyam yesinyithi kwaye iphinda ibe yinto ekrwada yokwenza ii-crucibles, i-porcelain, izinto eziphikisayo kunye namatye anqabileyo okwenziwa.
I-alumina esetyenziswa njenge-adsorbent, i-catalyst kunye ne-catalyst carrier ibizwa ngokuba yi-alumina esebenzayo. Ineempawu ze-porosity, ukusabalalisa okuphezulu kunye nommandla omkhulu ocacileyo. Isetyenziswa ngokubanzi kunyango lwamanzi, i-petrochemical, iikhemikhali ezilungileyo, i-biological and pharmaceutical fields.
Iimpawu ze-alumina
1. Indawo enkulu yendawo ethile: i-alumina esebenzayo inommandla othile ophezulu. Ngokulawula ngokufanelekileyo inkqubo ye-sintering ye-alumina, i-alumina evuliwe kunye nommandla othile ongaphezulu kwe-360m2 / G inokulungiswa. I-alumina esebenzayo elungiselelwe ngokusebenzisa i-colloidal aluminiyam hydroxide eboliswe yi-NaAlO2 njengento ekrwada inobungakanani obuncinci bepore kunye nommandla othile ophakamileyo njenge-600m2 / g.
2. Ubume bepore obulungelelanisiweyo: Ngokuqhelekileyo, iimveliso ezinobungakanani obuphakathi bunokulungiswa ngokubhaka nge-aluminium ecocekileyo ye-hydroxide. Iimveliso zobungakanani bepore ezincinci zinokulungiswa ngokulungiselela i-alumina esebenzayo kunye neglue aluminiyam, njl.
3. Umphezulu u-acidic kwaye unozinzo oluhle lwe-thermal.
Umsebenzi we-alumina esebenzayo
I-alumina esebenzayo iyinxalenye yekhemikhali ye-alumina, esetyenziswa ikakhulu njenge-adsorbent, isicoci samanzi, i-catalyst kunye ne-catalyst carrier. I-alumina esebenzayo inamandla okukhetha ngokukhetha amanzi kwigesi, umphunga wamanzi kunye nolwelo oluthile. Emva kokuba i-adsorption igcwele, inokufudunyezwa malunga ne-175-315. D ndivume. I-Adsorption kunye nokuphinda kusebenze kunokuqhutywa amaxesha amaninzi.
Ngaphandle kokusetyenziswa njenge-desiccant, inokuphinda ithathe umphunga we-oyile yokuthambisa kwi-oksijeni engcolileyo, i-hydrogen, i-carbon dioxide, igesi yendalo, njl.
Ingasetyenziswa njenge agent defluorinating kumanzi okusela aphezulu fluorine (kunye nomthamo omkhulu defluorinating), i agent defluorinating for circulating alkanes kwimveliso ye-alkylbenzene, i-agent deacidifying kunye ne-regenerating ye-oyile ye-transformer, i-arhente yokumisa igesi kwishishini lokwenza i-oksijini. , i-textile industry kunye ne-electronic industry, i-ejenti yokomisa yomoya wesixhobo esizenzekelayo, kunye ne-ejenti yokomisa kunye ne-arhente yokucoca kwisichumisi sekhemikhali, ukomisa i-petrochemical kunye namanye amashishini.
Ixesha lokuposa: Jun-01-2022
