iindaba

Inxalenye ephambili ye-diatomite njengomphathi we-SiO2. Ngokomzekelo, inxalenye esebenzayo ye-industrial vanadium catalyst yi-V2O5, i-cocatalyst i-alkali metal sulfate, kwaye umthwali uhlanjululwe i-diatomite. Iziphumo zibonisa ukuba i-SiO2 inefuthe lokuzinzisa kumacandelo asebenzayo, kwaye iyanda ngokunyuka kwe-K2O okanye umxholo we-Na2O. Umsebenzi we-catalyst unxulumene nokusasazeka kwenkxaso kunye nesakhiwo se-pore. Emva kokunyanga i-diatomite nge-asidi, umxholo wokungcola kwe-oxide uyancipha, umxholo we-SiO2 uyanda, indawo ethile yendawo kunye nevolumu ye-pore iyanda, ngoko umphumo we-carrier we-diatomite ococekileyo ungcono kune-diatomite yendalo.

I-diatomite yenziwa ngokubanzi kwiintsalela ze-silicates emva kokufa kwe-algae eneseli enye, ebizwa ngokuba yi-diatoms, kwaye i-hydrated amorphous SiO2. Iidiatom zinokuhlala emanzini amatsha kunye netyuwa. Kukho iintlobo ezininzi zeediatom, ezinokuthi zohlulwe ngokubanzi zibe "ingqondo ephakathi" diatom kunye ne "feather striata" diatom. Kulandelelwano ngalunye kukho “igenera” ezininzi, ezintsonkothileyo.

Icandelo eliphambili le-diatomite yendalo yi-SiO2. I-diatomite ekumgangatho ophezulu imhlophe, kwaye umxholo we-SiO2 uhlala udlula i-70%. I-diatom enye ayinambala kwaye icacile, kwaye umbala we-diatomite uxhomekeke kwiiminerali zodongwe kunye ne-organic matter, njl., kunye nokubunjwa kwee-diatoms ezivela kwimithombo eyahlukeneyo yamaminerali kuyahluka.

I-Diatomite yifosili ye-diatomite yediphozithi eyenziwe emva kwexesha lokuqokelela malunga ne-10,000 ukuya kuma-20,000 eminyaka emva kokufa kwezityalo ezineseli enye ezibizwa ngokuba yi-diatoms. Iidiatoms ziphakathi kweprotozoa yokuqala ukuvela eMhlabeni, ehlala emanzini olwandle kunye namachibi. Yile diatom, ebonelela ngeoksijini emhlabeni ngephotosynthesis, enoxanduva lokuzalwa kwabantu nezilwanyana nezityalo.

Olu hlobo lwe-diatomite lwenziwa ngokubekwa kweentsalela zesityalo sasemanzini esineseli enye diatomite. Ipropati ekhethekileyo ye-diatomite kukuba inokufunxa i-silicon yamahhala emanzini ukuze yenze i-skeleton yayo. Xa ubomi bayo buphelile, inokufaka idiphozithi ye-diatomite phantsi kweemeko ezithile ze-geological. Ineempawu ezikhethekileyo, ezifana ne-porosity, i-concentration ephantsi, indawo enkulu yendawo ethile, ukunyanzeliswa kobudlelwane kunye nokuzinza kweekhemikhali, ukuya kumhlaba wokuqala wokutyumza, ukuhlelwa, ukubala, njengokuhlelwa kokuhamba komoya, kwinkqubo yokucubungula eyinkimbinkimbi yokutshintsha ubungakanani bamasuntswana kunye neempawu zomphezulu, zilungele ukugquma izongezo zepeyinti, kunye nezinye iimfuno zamashishini.