【摘要】：正早年頒布的硫石中硫量測定的ISO國際標(biāo)準(zhǔn)采用燃燒-碘量法[1],此方法有一突出不同之處,它是利用礦石樣品本身混合氧化物中的氧和加入的助熔劑WO3中的氧作為氧化劑,使樣品中硫氧化生成SO_2,并用氮氣作為載氣,將SO_2導(dǎo)入吸收杯中,繼而進行碘量法滴定。在此條件下,反應(yīng)中氧的供應(yīng)量是受控制的,并無大量過量,如樣品含鐵量較高
[Abstract]:The ISO international standard for the determination of sulfur content in sulfur stone promulgated in the early years is combustion-iodine method [1]. There is a striking difference in this method. It uses the oxygen in the mixed oxide of the ore sample itself and the oxygen in the fluxing agent WO3 as the oxidant to oxidize the sulfur in the sample to form SO_2, and nitrogen as the carrier gas to introduce the SO_2 into the absorption cup. Then titration was carried out by iodimetry. Under these conditions, the supply of oxygen in the reaction is controlled and there is no excessive amount of oxygen, such as high iron content in the sample
【作者單位】： 寶鋼集團一鋼公司;
【分類號】：O655.2
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本文編號：2346205