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Trans. Nonferrous Met. Soc. China 25(2015) 966-972 Preparation of potassium chromate by roasting of carbon ferrochrome Guo-rong HU, Jia-liang WANG, Zhong-dong PENG, Ke DU, Wei-gang WANG, Qing-lai... ferrochrome to prepare potassium chromate in the presence of potassium carbonate and air was investigated. The effects of reaction temperature, reaction time, mole ratio of potassium carbonate to carbon......
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; 文献标识码:A Preparation and properties of electroless composite plating of nickel-phosphous-potassium titanate whisker JIN Ya-xu, HUA Lin (School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China) Abstract: Nickel-phosphorus composite coatings containing potassium titanate whisker (PTW) were prepared by electroless plating. The surface......
888)确定氢氧化钾的准确含量.为充分考察不同浓度下的铝酸钾的分解过程[34],实验所选溶液浓度和温度如表1所示. 表1 过饱和铝酸钾溶液自发分解过程的实验条件 Table 1 Experimental conditions for spontaneous decomposition of supersaturated potassium aluminate..., LI P, YU J G. Insights into the polymorphic transformation mechanism of aluminum hydroxide during carbonation of potassium aluminate solution[J]. Crystengcomm, 2018, 20: 1431-1442. [40] SWEEGERS C......
equilibrium and kinetics of potassium ethyl xanthate-lead combined pollutants on montmorillonite HAO Yan, WU Xiao-lian, MO Ce-hui, LI Yan-wen, HUANG Xian-pei, QU Xiang-long, XIANG Lei, LIANG Jia-hua (1. Key...) Abstract: Adsorption equilibrium and kinetics of potassium ethyl xanthate-lead combined pollutants to montmorillonite by static adsorption experiments were investigated to reveal environmental behavior......
solution is obtained by hydrochloric acid leaching antimony oxide, then, sodium potassium tartrate was added to prevent hydrolysis. The aqueous solution of antimony trichloride can be stable at acidic, neutral or basic conditions when the range of molar ratio of sodium potassium tartrate to Sb3+ is 1.7-2.1 and antimony concentration is less than 75.24 g/L. Finally, sodium thioantimonate solution......
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锶(Ⅱ)-铁氰酸盐-钙黄绿素体系流动注射-后化学发光法的研究何云华1(1.陕西省西安市长安大学环境科学与工程学院)摘 要:用流动注射化学发光分析仪的静态测量系统,研究了Sr2+在铁氰化钾-钙黄绿素体系中的后化学发光行为.实验发现:当将碱性铁氰化钾溶液注入到钙黄绿素溶液中,立即发生了一化学发光反应,检测到强的化学发光信号,反应结束后化学发光信号回落至基线,再注入Sr2+标准溶液,又引发一个新的化学发光反应,检测到另一强的化学发光信号,反应结束后化学发光信号又回落至基线.表明了Sr2+在铁氰化钾-钙黄绿素化学发光反......
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pressure leaching in an autoclave, and the effects of different technological conditions on indium leaching were studied. Potassium permanganate and hydrogen peroxide were used as oxidants... leaching; potassium permanganate; hydrogen peroxide ____________________________________________________________________________________________ 1 Introduction Indium has a wide range of applications due......
