iindaba

Njengeyona nto ingundoqo yodaka lwe-diatom, umhlaba we-diatomaceous ikakhulu usebenzisa ubume be-microporous ukuzisa amandla e-adsorption yeegesi ze-macromolecular ezifana ne-benzene, i-formaldehyde, njl njl. Okwangoku, iindlela ezisetyenziswa ngokuqhelekileyo zokusetyenzwa kwediatomite kwimarike ikakhulu zibandakanya ukuqhotsa kunye nokubala. Iimfuno zokutshisa ziphezulu, isantya sicotha, imveliso iphantsi, kwaye ixabiso liphezulu, ngelixa iimfuno zokubala ziphantsi, isantya sikhawuleza, kwaye iindleko ziphantsi ngokwemvelo.

1. Oko kubizwa ngokuba kukuqhotsa kubhekiselele ekulawuleni ngokungqongqo ubushushu obumalunga nama-500 degrees Celsius, ngokucothayo ukunyusa iqondo lobushushu bomhlaba we-diatomaceous, kunye nokuqhotsa ngesantya esingaguqukiyo esingaphezu kweeyure ezi-2, ezinokugcina uninzi lwengqibelelo yepore kunye nokubhengezwa okuhle komhlaba wediatomaceous, kwaye kucotha Ukunyuka kweqondo lobushushu kunye nobushushu obungaguqukiyo bezinto eziphilayo kunokususa ubushushu obungapheliyo.ngokupheleleyo, kwaye ubumhlophe buphezulu kwaye amasuntswana ayafana.

2. I-calcining ibhekisela ekongezeni umhlaba we-diatomaceous kwi-co-solvent kunye nokufudumeza kwisithando somlilo kwiqondo lokushisa eliphezulu le-900 ukuya kwi-1150 degrees kwimizuzu eyi-10 ukuya kwimizuzu engama-30. I-co-solvent iyanyibilika ngokukhawuleza kwaye idibanise nomhlaba we-diatomaceous. I-calcining inokwenziwa ngexesha elincinci kunye neendleko eziphantsi. Nangona kunjalo, ngenxa yokuba iqondo lokushisa liphezulu kakhulu kwaye kunzima ukulawula, kulula ukutshiza kunye ne-pellet i-diatomite, efuna ukucolwa kwaye iphulwe kwi-fineness efunekayo, ibangele umonakalo wesibini kwi-pores ebusweni be-diatomite. Njengoko i-cosolvent inyibilika kwaye ibambelela kumphezulu womhlaba we-diatomaceous, iipores zomhlaba we-diatomaceous zivaliwe, kwaye indawo ethile yomhlaba we-diatomaceous iyancitshiswa. Ukongeza, ubushushu obuphezulu ukuya kuthi ga kwi-1100 bunyibilika ngokulula kwaye bunyamalale i-micropores yomhlaba we-diatomaceous, ubume be-micropore bomzimba we-diatomaceous butshatyalaliswe ngokupheleleyo, ezinye iindonga ze-pore zicwecwe kwaye zinyibilike, kwaye ubume bezithuba ezininzi bomhlaba we-diatomaceous bungene, okukhokelela ekunciphiseni ukubhengezwa.

Uvavanyo lodaka lwe-diatom lubonise ukuba i-100g yomhlaba we-diatomaceous calcined kwi-500 degrees Celsius kwiiyure ze-2 kunye ne-5% co-solvent yongezwa, kwaye emva koko ubuso bubalwe kwi-900 ° kunye ne-1100 °, ngokulandelanayo, kwaye umphezulu wabonwa phantsi kwe-microscope ye-electron yokuskena.

Emva kokubala kwi-500 °, ubuso bomhlaba we-diatomaceous buphelele kakhulu, kwaye i-pores ayinayo imiqondiso yokuwa okanye ukudibanisa, ebonisa ukuba ine-adsorption ephezulu. Emva kokuba kubalwe kwi-900 ℃, umhlaba we-diatomaceous waveza idiski ye-siliceous setyhula yesisefo, kwaye imiphetho yayo eyingqongileyo yayinyibilikile. Iimicropores kumzimba wesetyhula wesetyhula zavalwa ngenxa yokunyibilika ngokuthe ngcembe, kwaye inxalenye yomzimba wokuqala wesefu yaphulwa yangamaqhekeza.

Emva kokubala kwi-1150 ℃, i-micropores phezu komhlaba we-diatomaceous yanyibilika kwaye yanyamalala, isakhiwo se-micropore somzimba we-diatomaceous satshatyalaliswa ngokupheleleyo, kwaye i-adsorption yalahleka ngokupheleleyo.

Kungabonwa ukuba kwaneendlela ezahlukeneyo zokusetyenzwa komhlaba we-diatomaceous ukusuka kwindawo enye yokuvelisa ziya kubangela umahluko omkhulu kwimpembelelo ye-adsorption yomhlaba we-diatomaceous. Ngoko ke, umhlaba we-diatomaceous kaDkt Ni ukhetha umgangatho ophezulu ogcadiweyo we-diatomaceous umhlaba njengeyona nto iphambili ekrwada yomhlaba we-diatomaceous ukuqinisekisa Isakhiwo esikhethekileyo se-crystal adsorption yomhlaba we-diatomaceous asiyi kutshatyalaliswa, kunye nomthamo we-adsorption wodaka lwe-diatom uqinisekisiwe ukuya kwinqanaba elikhulu, ukubeka isiseko sokusebenza kukaDkt.