Txoj Kev Ua Calcium Carbide yog dab tsi?

Txoj kev ua calcium carbide yog dab tsi?
Lub npe tshuaj calcium carbide yog calcium carbide, thiab nws cov mis molecular yog CaC2. Nws zoo nkaus li grey, daj, dub lossis tsaus blocks. Nws yog cov khoom siv tseem ceeb rau kev lag luam organic synthetic chemical. Siv cov calcium carbide ua raw khoom, ntau cov organic tebchaw tuaj yeem ua ke, muab cov khoom siv raw rau kev lag luam, kev ua liaj ua teb, thiab tshuaj. Calcium carbide yog ib qho ntawm cov khoom siv tseem ceeb rau kev lag luam organic hluavtaws. Nws yog ib qho tseem ceeb raw khoom rau kev lag luam tshuaj acetylene. Acetylene ua los ntawm calcium carbide yog dav siv nyob rau hauv hlau vuam thiab txiav.
Muaj ob txoj hauv kev los tsim cov calcium carbide: aerobic thermal method thiab electrothermal method. Feem ntau, calcium carbide yog tsim los ntawm electrothermal txoj kev, uas yog, quicklime thiab carbon -cov ntaub ntawv raw (coke, anthracite los yog petroleum coke) yog melted nyob rau hauv lub calcium carbide rauv los ntawm hluav taws xob arc kub melting cov tshuaj tiv thaiv los tsim calcium carbide. Cov txheej txheem ntau lawm yog: raw khoom ua; batching; Ntxiv cov khoom sib xyaw rau hauv lub qhov cub hluav taws xob los ntawm qhov nkag los yog cov kav dej rau saum lub qhov cub hluav taws xob, cua sov kom txog li 2000C hauv qhov qhib lossis kaw hluav taws xob, thiab tsim cov calcium carbide raws li cov tshuaj tiv thaiv hauv qab no: Ga0+3C→CaC2+CO. Tom qab melted calcium carbide raug tshem tawm hauv qab ntawm lub cub tawg, nws yog txias thiab crushed thiab ntim raws li cov khoom tiav. Cov pa roj carbon monoxide tsim tawm hauv cov tshuaj tiv thaiv yog tawm hauv ntau txoj hauv kev nyob ntawm seb hom calcium carbide rauv: nyob rau hauv lub qhov cub qhib, carbon monoxide hlawv rau ntawm cov khoom nto, thiab cov nplaim hluav taws tau tawg tawm sab nraud nrog rau cov plua plav. Nyob rau hauv ib nrab- kaw qhov cub, ib feem ntawm cov pa roj carbon monoxide yog muab rho tawm los ntawm lub tshuab nqus tsev vacuum tso rau ntawm lub qhov cub, thiab qhov seem tseem kub hnyiab ntawm cov khoom nto; Hauv qhov cub kaw, tag nrho cov pa roj carbon monoxide raug rho tawm.

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muas calcium carbide