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Self-assembling anchored film basing on two tetrazole derivatives for application to protect copper in sulfuric acid environmentYujie Qiang,Hao Li,Xijian LanKey Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences摘 要:
: The properties of anodic films formed in chromic, boric-sulfuric and adipic-sulfuric acid (CAA, BSAA and ASAA, respectively) on LY12 aluminum alloy were studied by morphology characterization, current... anodization; boric-sulfuric acid anodization; adipic- sulfuric acid anodization 铝及铝合金由于其优异的综合性能而受到广泛重视,尤其在航空领域,一直用作最重要的结构材料之一[1].阳极氧化是最常用于提高其耐蚀性的方法之一.铬酸阳极氧化作为传统的铝合金阳极氧化技术,其氧化膜具有良好的性能,但是铬酸阳极氧化中六价铬的大量使用会带来严重的环境污染......
, et al. Study on process and kinetics of extracting copper from complex high silicon white alloy by sulfuric acid oxidation leaching[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(5...5 mL的次氯酸钠(Cl-的摩尔数相等)对铜钴浸出率的影响,结果如图3所示. 图2 高硅白合金硫酸氧化浸出的流程图 Fig. 2 Flow chart of sulfuric acid oxidation leaching of high silicon white alloy 图3 不同氧化剂对铜和钴浸出率的影响 Fig. 3 Effect......
and tellurium were leached in sulfuric acid solution. The base metals containing in copper anode slime can be removed efficiently. The result shows that valuable metals cannot be separated effectively whether the direct leaching was performed in alkaline solution or sulfuric acid solution. Arsenic and antimony cannot be removed together under different oxidation methods when the process of alkaline......
location is also more flexible without the restrictions of sulfuric acid sales. The technologies and chemical principle utilizing Gacun complex copper concentrates by oxygen pressure acid leaching.... Sulfuric acid (98%), hydrochloric acid (36%), thiourea, sodium chloride, ferric sulphate, and sodium lignin sulfonate used in these experiments are all chemically pure, and 260# kerosene, Acorga M5640......
of stone coal that came from power generation was conducted. Factors which influence the leaching of vanadium such as concentration of sulfuric acid, leaching temperature, leaching time and liquid... oxidation roasting (RL). Both of the leaching materials are crushed and grinded to ＜0.074 mm of 75%-80%, which is suitable for leaching. The residue is leached with sulfuric acid in a conical flask using......
Evolution of insoluble eutectic Si particles in anodic oxidation films during adipic–sulfuric acid anodizing processes of ZL114A aluminum alloysLei Hua1,Jian-hua Liu1,Song-mei Li1,Mei Yu11. School... containing 50 g/L sulfuric acid and 10 g/L adipic acid. The thickness of the formed anodic oxidation film was approximately 7.13 μm. The interpore distance and the diameters of the major pores in the porous......
. (in Chinese) [5] SUI Li-li, ZHAI Yu-chun, MIAO Li-hua. Recovery of titania from high titanium slag by roasting method using concentrated sulfuric acid [J]. Rare Metals, 2015, 34(12): 895–900. [6] WAN He... J. Cent. South Univ. (2019) 26: 806-812 DOI: https://doi.org/10.1007/s11771-019-4050-6 Flotation behavior and adsorption mechanism of salicylhydroxamic acid in artificial mineral anosovite WANG Xue......
:A 文章编号:1672-7207(2015)01-0248-07 Model test research on salt expansion of partition above and channelize below sulfuric acid saline soil roadbed CHEN Zai1... South University, Changsha 410083, China) Abstract: According to the survey of a sulfuric acid saline soil roadbed in Alar, Xinjiang, the salt expansion characteristics and law of temperature change were......
