Szela Rafał, Małecki Stanisław, Gargul Krzysztof
PPUH AUTOPART Jacek Bąk Sp. z o.o., ul. Kwiatkowskiego 2a, 39-300 Mielec, Poland.
Faculty of Non-Ferrous Metals, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland.
Materials (Basel). 2022 Jul 15;15(14):4941. doi: 10.3390/ma15144941.
The paper presents tests of lead oxidation in a Barton reactor with a capacity of 1200 kg PbO/h, divided into two series. The first series was carried out in conditions of high humidity of the air supplied to the reactor (59-61%), and the second series in conditions of low humidity (19-21%). The study used lead of various purity levels, the main impurities of which were bismuth and silver. The obtained results show that the use of air with a humidity of about 60% in the process allows us to obtain high-quality PbO and has a positive effect on processing parameters such as the amount of lead processed and the efficiency of the process. The mentioned processing parameters significantly influence the production cost of lead oxide. The effect of lead impurities on the process of lead oxidation and the quality of the obtained product was noticed. This dependence is especially visible in the case of the process efficiency, the amount of lead processed per time unit and the amount of formed scrap. The increase in the content of impurities adversely affects each of the parameters mentioned. Optimal parameters of lead oxide regarding the expected acid absorption at the level above 16 g HSO/100 g PbO and the degree of oxidation at the level of 75% were obtained for the air humidity of about 60% with the content of pollutants below 100 ppm. The paper presents data on the process parameters and the relationships between them, unpublished in the literature.
本文介绍了在容量为1200 kg PbO/h的巴顿反应器中进行的铅氧化试验，试验分为两个系列。第一个系列是在供应给反应器的空气湿度较高（59 - 61%）的条件下进行的，第二个系列是在空气湿度较低（19 - 21%）的条件下进行的。该研究使用了不同纯度水平的铅，其主要杂质为铋和银。所得结果表明，在该过程中使用湿度约为60%的空气能够获得高质量的PbO，并且对诸如铅的处理量和过程效率等工艺参数具有积极影响。上述工艺参数对氧化铅的生产成本有显著影响。注意到了铅杂质对铅氧化过程和所得产品质量的影响。这种相关性在过程效率、单位时间内处理的铅量以及形成的废料量方面尤为明显。杂质含量的增加对上述每个参数都有不利影响。对于空气湿度约为60%且污染物含量低于100 ppm的情况，获得了关于预期酸吸收量高于16 g HSO/100 g PbO以及氧化度为75%水平的氧化铅最佳参数。本文给出了文献中未发表的工艺参数及其相互关系的数据。
