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; (3) The by-product (OH-) of magnesium dissolution can raise localized corrosion and stabilize the corrosion product (Mg(OH)2): Mg2++2OH-→Mg(OH)2 (4) As immersion proceeds, the thickness of the corrosion product layer increases......
reaction given in Eq. (1) which yields the NbB2 phase as a main reaction product, NbB2 is not the dominant phase in the microstructure of the milled powders. The occurrence of niobium borides in different... and thermal analyses of milled and leached powders Figure 4 shows the XRD patterns of the Nb2O5- B2O3-Mg powders milled for 2, 3, 5, 7 and 9 h after leaching. Figure 4 reveals that the unwanted by-product MgO......
fabrication cost, which can be minimized by using inexpensive reinforcements such as natural minerals and fly ash. Fly ash is a waste by-product of coal combustion in thermal power plants, which......
-polluting character (with hydrogen as the major by-product). In our earlier works, we prepared several tantalum and niobium alkoxides by electrochemical method [9-11]. In 1995, hafnium isopropanol.... This fact may be related to the formation of increasing amounts of corrosion product in the oxide defective sites where pitting was initiated, making further metal dissolution difficult [27]. Fig. 4......
hydrothermal method was proposed to synthesize zeolite from coal fly ash and the zeolite product was studied for removal of Cd(II) from aqueous solution through batch experiments. The adsorbent..., zeolites have been proved to be a promising adsorbent because of its high capacity and stability. Coal fly ash (CFA) is a by-product generated in large quantities from coal-fired power plants......
of the reinforcing particles, which significantly influences the uniform distribution of the reinforcing particles within the matrix and lowers the quality of the final product [15]. In addition... on the properties of the final product is the essential step in the evaluation of the suitability of such composites for industrial applications. Therefore, this work is aimed to develop Al7075/B4C......
pyrometallurgical process for producing antimony white from by-product of lead smelting[J]. JOM, 2014, 9(66): 1694-1700. [7] 郭学益, 王亲猛, 田庆华, ZHAO Bao-jun. 氧气底吹铜熔炼工艺分析及过程优化[J]. 中国有色金属学报,2016, 26(3): 689-699......
the safety of production, improving product quality is a necessary way to increase economic efficiency. Process monitoring ensures production safety and product quality, so much effort has been devoted... analysis. Therefore, the data-driven process monitoring methods have yielded remarkable achievements [6–8]. The specific index is the most concerned index in the process, such as product quality......
/10.1007/s11771-019-4013-y. 1 Introduction Bauxite residue is a by-product of alumina production, which is stored in bauxite residue disposal areas (BRDAs). Over time, the properties of the residue change......
desulfurization by-product obtained is difficult to be used effectively but is easy to cause the potential secondary pollution [3]. Therefore, it is a hot research direction to establish a new... Bayer red mud accounts for a large amount because of the relative simple process, low lost and high-quality product [5–8]. However, the Bayer red mud contains high alkali and low activity, thus......
