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Alumina recovery from spent Bayer liquor by methanol ZHANG Ying(张 盈)1, 2, ZHENG Shi-li(郑诗礼)1, DU Hao(杜 浩)1, WANG Shao-na(王少娜)1, PENG Ying(彭 鹰)3, ZHANG Yi(张 懿)1 1. National Engineering.... In this study, a method was explored to recover alumina from spent Bayer liquor by deep decomposition with methanol. A variety of conditions, including reaction temperature, reaction time, methanol......
-evaporative crystallization-dissolution. Arsenic trioxide and cupric sulfate were obtained and resource of waste acid was accomplished. The results show that the acidity of the waste acid decreases... solution while arsenic trioxide meeting the product standard of YS/T-99-1997As2O3-3 is collected in the filter cake. Key words: waste acid; leaching; recovery; arsenic trioxide; cupric sulfate 据估计,我国有色冶炼系统......
Disposal of cuprous chloride waste water XUE Juan-qin(薛娟琴), MAO Wei-bo(毛维博), WANG Yu-jie(王玉洁), LI Jing-xian(李京仙), WU Ming(吴 明), LU Xi(卢 曦) School of Metallurgical Engineering, Xi... ____________________________________________________________________________________________ Abstract: The waste water system generated in the process of production of cuprous chloride was studied. The existing forms of copper in the system and the influence of temperature and pH......
concentrate leads to two types of solid waste: a ferrihydrite/gypsum precipitate from neutralisation of the bioleach liquor and un-leached gangue. The paper indicates that, depending upon the minor... Integrated waste and water management in mining and metallurgical industries B. K. C. CHAN1, S. BOUZALAKOS2, A. W. L. DUDENEY1 1. Department of Earth Science and Engineering......
J. Cent. South Univ. (2017) 24: 1745-1753 DOI: https://doi.org/ 10.1007/s11771-017-3582-x Sustainable synthesis of 5-hydroxymethylfurfural from waste cotton stalk catalyzed by solid superacid-SO42... of 5-hydroxymethylfurfural (HMF) by catalytic degradation of the waste cotton stalk. Solid super-acid (SO42-/ZrO2) was used as an efficient catalyst for the degradation of cotton stalk. Both......
+ in sulfuric acid leached liquor from waste Mn-Zn ferrite powders and the theoretical prescription of Mn-Zn ferrite, the sulfuric leached liquors’ proportion reduction processes, in which special proportion.... The mass concentration of Fe3+ is below 0.1 g/L and its reduction rate is above 99.8%. Key words: waste Mn-Zn ferrite powders; sulfuric acid leached liquor; reduction 锰锌铁氧体是现代电子工业及信息产业的基础功能材料,随着通讯,计算机......
of diffusion dialysis technology was also inducted. Key words: diffusion dialysis; anion-exchange membrane; waste acid liquor; recovery ... by diffusion dialysis [J]. Journal of Hazardous Materials, 2004, B114: 69-74. [8] XU Tong-wen, YANG Wei-hua. Sulfuric acid recovery from titanium white (pigment) waste liquor using diffusion dialysis......
Leaching behavior of heavy metals with hydrochloric acid from fly ash generated in municipal waste incineration plants HUANG Kai1, Katsutoshi INOUE2, Hiroyuki HARADA2, Hidetaka KAWAKITA2, Keisuke... Received 30 November 2010; accepted 18 April 2011 Abstract:The extraction behavior of heavy metals from municipal waste incineration (MWI) fly ash was investigated systematically. The extraction......
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Removing cadmium from electroplating wastewater by waste saccharomyces cerevisiae DAI Shu-juan(代淑娟)1, 2, WEI De-zhou(魏德洲)1, ZHOU Dong-qin(周东琴)1, JIA Chun-yun(贾春云)1, WANG Yu-juan(王玉娟)1, LIU... method using waste saccharomyces cerevisiae(WSC) as sorbent. Effect factors on biosorption of cadmium in cadmium-containing electroplating wastewater by waste saccharomyces cerevisiae......
