Qhov Kub thiab Kev Ntsuas Pa ntawm Cov Txheej Zaj Duab Xis

Txheej zaj duab xis nyob rau hauv qhov chaw evaporation ntawm cua sov evaporation tuaj yeem ua rau cov khoom me me hauv daim ntawv ntawm cov atoms (lossis molecules) mus rau hauv qhov chaw roj theem. Nyob rau hauv qhov kub siab ntawm qhov chaw evaporation, cov atoms lossis molecules ntawm qhov chaw ntawm daim nyias nyias tau txais lub zog txaus los kov yeej qhov nro ntawm qhov chaw thiab evaporate ntawm qhov chaw. Cov atoms lossis molecules evaporated no muaj nyob rau hauv lub xeev gaseous hauv lub tshuab nqus tsev, piv txwv li qhov chaw roj theem. cov khoom siv hlau lossis tsis yog hlau.

Hauv qhov chaw nqus tsev, cov txheej txheem cua sov thiab evaporation ntawm cov ntaub ntawv membrane tuaj yeem txhim kho. Qhov chaw nqus tsev txo qhov cuam tshuam ntawm lub zog cua rau cov txheej txheem evaporation, ua rau cov txheej txheem evaporation yooj yim dua. Ntawm lub zog cua, cov khoom siv yuav tsum tau raug rau lub zog siab dua kom kov yeej qhov tsis kam ntawm cov roj, thaum nyob hauv lub tshuab nqus tsev, qhov kev tsis kam no raug txo qis heev, ua rau cov khoom siv yooj yim rau evaporate. Hauv cov txheej txheem evaporation txheej txheem, qhov kub evaporation thiab lub zog vapor ntawm cov khoom siv evaporation qhov chaw yog qhov tseem ceeb hauv kev xaiv cov khoom siv evaporation qhov chaw. Rau Cd (Se, s) txheej txheem, nws qhov kub evaporation feem ntau yog nyob rau hauv 1000 ~ 2000 ℃, yog li koj yuav tsum xaiv cov khoom siv evaporation qhov chaw nrog qhov kub evaporation tsim nyog. Xws li txhuas ntawm lub zog cua evaporation qhov kub ntawm 2400 ℃, tab sis nyob rau hauv lub tshuab nqus tsev, nws qhov kub evaporation yuav poob qis heev. Qhov no yog vim tsis muaj cov molecule atmospheric hauv qhov thaiv nqus tsev, yog li cov txhuas atoms lossis molecule tuaj yeem yooj yim evaporated ntawm qhov chaw. Qhov xwm txheej no yog qhov zoo tseem ceeb rau lub tshuab nqus tsev evaporation txheej txheem. Hauv huab cua nqus tsev, qhov ua kom cov khoom siv zaj duab xis evaporation yooj yim dua, yog li cov zaj duab xis nyias tuaj yeem tsim tau ntawm qhov kub qis dua. Qhov kub qis dua no txo ​​​​​​qhov oxidation thiab decomposition ntawm cov khoom, yog li pab txhawb rau kev npaj cov zaj duab xis zoo dua.
Thaum lub sijhawm txheej nqus tsev, qhov siab uas cov pa ntawm cov khoom siv zaj duab xis sib npaug hauv cov khoom khov lossis kua hu ua qhov siab ntawm cov pa dej ntawm qhov kub ntawd. Qhov siab no qhia txog qhov sib npaug ntawm kev ua pa thiab kev sib sau ua ke ntawm qhov kub uas tau muab. Feem ntau, qhov kub hauv lwm qhov ntawm lub chamber nqus tsev qis dua qhov kub ntawm qhov chaw ua pa, uas ua rau nws yooj yim dua rau cov atoms lossis molecules uas ua pa kom sib sau ua ke hauv lwm qhov ntawm lub chamber. Hauv qhov no, yog tias tus nqi ntawm kev ua pa ntau dua li tus nqi ntawm kev sib sau ua ke, ces hauv qhov sib npaug ntawm qhov sib npaug ntawm qhov siab ntawm cov pa yuav ncav cuag qhov siab ntawm cov pa dej. Ntawd yog, hauv qhov no, tus lej ntawm cov atoms lossis molecules uas ua pa sib npaug rau tus lej ntawm kev sib sau ua ke, thiab qhov sib npaug ntawm qhov sib npaug ntawm qhov sib npaug tau mus txog.

– Tsab xov xwm no yog tso tawm los ntawmlub tshuab nqus tsev txheej tshuab chaw tsim khoomGuangdong Zhenhua