Ubundi ni uburyo bwa gaz - icyiciro, uburyo bwo kubika imyuka ya chimique (CAV), bizwi kandi nkuburyo bwa pyrolysis, uburyo bwumye cyangwa uburyo bwo gutwika. Ibikoresho byibanze muri rusange ni silicon tetrachloride, ogisijeni (cyangwa umwuka) na hydrogène, bigira ubushyuhe bwinshi.
The reaction equation is: SiCl4+2H2+O2 - >SiO 2+4 HCl. Umwuka na hydrogène bikorerwa igitutu, gutandukana, gukonjesha no kubura umwuma, silika gel yumisha, gukuramo ivumbi no kuyungurura mbere yo koherezwa mu itanura rya hydrolysis. Nyuma yibikoresho fatizo bya silicon tetrachloride yoherejwe kumurongo wo kubitandukanya, birashyuha kandi bigahinduka umwuka mubi, hanyuma byoherezwa mumatanura ya hydrolysis ya hydrolysis hamwe numwuka wumye kandi uyungurura nkuwitwara. Silicon tetrachloride ihumeka mu bushyuhe bwo hejuru (ubushyuhe bwa flame 1000 - 1800) hanyuma igahita gazi - icyiciro cya hydrolysis hamwe na hydrogène na ogisijeni (cyangwa umwuka) kuri dogere 1800. Kuri ubu, ibice bya silika ya gaz ya silika yakozwe nibyiza cyane kandi ikora aerosole hamwe na gaze, bigoye kuyifata.
Kubwibyo, babanje gukusanyirizwa mubice binini muri agregator, hanyuma bakusanyirizwa hamwe na sikorone itandukanya, hanyuma boherezwa mu itanura rya deacidification. Gazi - icyiciro cya silika yogejwe na azote - irimo umwuka kugeza igihe PH ifite agaciro ka 4 kugeza 6, nicyo gicuruzwa cyarangiye