Nheyo ye muffle furnace calcination

Muffle furnace calcination: kupisa kupisa mumhepo kana inert gasi pane imwe tembiricha, inonzi calcination kana kugocha.

Iwo makuru emuviri uye kemikari shanduko mune muffle choto calcination maitiro ndeaya:

(1) Thermal decomposition: bvisa mvura yakasungwa nemakemikari, CO2, NOx uye kumwe kusvibiswa kunoputika. Pakupisa kwepamusoro, ma oxides anogonawo kuita solid-phase reactions kuti aite active compound state;

(2) Recrystallization: Imwe chimiro chekristaro, saizi yekristaro, chimiro chepore uye chaiyo nzvimbo inogona kuwanikwa;

(3) Iyo crystallites yakanyatso kunyudzwa kuti ivandudze simba remagetsi.

Zvinhu zvikuru zvinokanganisa maitiro ecalcination: calcination tembiricha, gas phase composition, thermal stability of the compound, etc. Naizvozvo, maererano nekugadzikana kwekupisa kwezvikamu zvakasiyana-siyana (zvakadai se carbonate, oxide, hydroxide-sulfide, oxyacid munyu, nezvimwewo. ), tembiricha yecalcination uye gasi chikamu chinoumbwa chinogona kudzorwa kuti chisandure kugadzikana kwekupisa kwemamwe makomisheni. Iko kuumbwa kana crystal fomu inoshanduka, uye yobva yarapwa nenzira dzinoenderana, inogona kuzadzisa chinangwa chekubvisa tsvina uye kupatsanura nekupfumisa mapoka anobatsira.