Kev tsim cov sulfuric acid

Sulfuric acid yog ib qho tseem ceeb ntawm kev lag luam tshuaj, thiab nws cov txheej txheem ntau lawm yog ua los ntawm txoj kev sib cuag. Txoj kev sib cuag muaj peb kauj ruam tseem ceeb: ua ntej, hlawv cov sulfur rau hauv sulfur dioxide, tom qab ntawd oxidizing sulfur dioxide rau hauv sulfur trioxide los ntawm cov catalyst, thiab thaum kawg sib txuas cov sulfur trioxide nrog dej los tsim cov sulfuric acid.

Kauj Ruam Ib: Generation of Sulfur Dioxide Gas (SO2) Sulfur dioxide gas yog tsim thaum leej faj tau los ntawm ntau qhov chaw raug hlawv. Cov kauj ruam no yuav tsum tau ua kom ntseeg tau tias cov cua nkag rau cov txheej txheem combustion yog qhuav. Thaum hlawv cov sulfur, qhov piv ntawm huab cua mus rau sulfur yuav tsum tau tswj xyuas kom ntseeg tau tias cov khoom siv high-purity sulfur dioxide.

Kauj Ruam 2: Catalytic oxidation ntawm sulfur dioxide los tsim sulfur trioxide (SO3). Nyob rau hauv qhov kev txiav txim ntawm lub catalyst (feem ntau yog vanadium pentoxide), sulfur dioxide reacts nrog oxygen los tsim sulfur trioxide. Qhov kub thiab siab ntawm cov kauj ruam no yuav tsum tau tswj nruj me ntsis txhawm rau txhim kho cov txiaj ntsig ntawm sulfur trioxide.

Kauj Ruam 3: Sulfur trioxide ua ke nrog dej los tsim sulfuric acid (H2SO4). Thaum sulfur trioxide ua ke nrog dej, sulfuric acid yog tsim. Cov txheej txheem no tso tawm cov cua kub ntau, yog li kev ntsuas yuav tsum tau coj los tswj cov tshuaj tiv thaiv kub kom tiv thaiv cov khoom puas.

Kev tsim cov txheej txheem ntawm sulfuric acid tsis tsuas yog yuav tsum muaj kev tswj hwm ntawm cov tshuaj tiv thaiv kab mob, tab sis kuj yuav tsum tau xav txog kev tiv thaiv ib puag ncig thiab kev nyab xeeb ntawm kev tsim khoom. Vim tias sulfuric acid yog corrosive heev, kev tiv thaiv tsim nyog yuav tsum tau coj los tiv thaiv cov neeg ua haujlwm thiab ib puag ncig thaum tsim khoom thiab kev thauj mus los.

Sulfuric acid yog dav siv nyob rau hauv tshuaj chiv, roj refining, dej khib nyiab, tshuaj synthesis thiab lwm yam liaj teb, thiab yog ib qho tseem ceeb ib feem ntawm niaj hnub kev lag luam4. Raws li kev siv thev naus laus zis, kev tsim cov sulfuric acid tau ua kom zoo dua thiab zoo ib puag ncig kom ua tau raws li qhov xav tau thoob ntiaj teb loj hlob rau cov tshuaj tseem ceeb no.

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