Vim li cas roasting yog exothermic?

Cov txheej txheem:

Vim li cas roasting yog exothermic?
Vim li cas roasting yog exothermic?
Anonim

Cov txheej txheem ntawm cov cua kub ntawm cov ore mus rau qhov kub thiab txias nyob rau hauv lub xub ntiag ntawm huab cua yog hu ua roasting. Yog li, nqe lus 'nws yog txheej txheem ntawm cov cua sov ore hauv huab cua kom tau txais cov oxide' yog qhov tseeb. Thaum lub sij hawm ci, ntau cov kua qaub, nws yog xim hlau thiab lwm yam tshuaj lom neeg raug tso tawm. Yog li, roasting yog txheej txheem exothermic.

Ib roasting exothermic?

Roasting is ib qho tshuaj tiv thaiv kab mob. Qhov cua sov no pab ua kom lub roaster ntawm qhov xav tau roasting kub kom cov txheej txheem tuaj yeem txuas ntxiv nrog cov cua sov me me los ntawm cov roj hlawv. Li no, sulfide roasting yog txheej txheem autogenous, uas yog, qhov twg tsis muaj roj ntxiv.

Ib roasting combustion?

combustion reaction tshwm sim hauv roasting tab sis tsis nyob rau hauv calcination.

Yuav ua li cas ore yog ci?

Yuav ua li cas ore yog ci? Nyob rau hauv roasting ore yog rhuab nyob rau hauv lub xub ntiag ntawm ntau tshaj ntawm oxygen los yog cua. Txoj kev no yog ua haujlwm rau sulphide ores . Piv txwv li: ZnS (sphalerite) thiab Cu2S (chalcocite).

Vim li cas roasting tiav?

Sulfides yog thawj qhov chaw ntawm huab cua phem. Cov txheej txheem ntawm roasting kuj tso tawm ntau ntau ntawm cov hlau, tshuaj lom, thiab cov kua qaub uas yuav ua rau muaj teeb meem hauv ib puag ncig. Zinc oxide tuaj yeem tau txais los ntawm zinc sulfide los ntawm cov txheej txheem ntawm roasting.

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