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corrosion resistance in descending order is in nitric, sulfuric and hydrochloric acid solutions. Obvious erosion-corrosion morphology and serious intercrystalline corrosion of coating are noticed...×10 mm. Table 1 Chemical compositions of Hastelloy C22 powders and Q235 steel 2.2 Methods The hydrochloric (HA), sulfuric (SA) and nitric (NA) acid solutions with molar concentrations of 2 mol/L, 1......
Adsorption of acid and basic dyes by sludge-based activated carbon: Isotherm and kinetic studiesLI Xin(李鑫)1, WANG Guang-zhi(王广智)1, LI Wei-guang(李伟光)1, 2, WANG Ping(王萍)1, SU Cheng-yuan(宿程远)1(1. School...), Harbin 150090, China)Abstract:A batch experiment was conducted to investigate the adsorption of an acid dye (Acid Orange 51) and a basic dye (Safranine) from aqueous solutions by the sludge-based activated......
Preparation and Property of Acrylic Acid Rare Earth Complex and Its Hydrosilylation OKAMOTO Hiroshi1,CHEN Haiyan2,Inoue Shinich1,Chen Xiaosong3,Dai Shaojun4,Zhang Ming6 (1.Department of Applied...;6.College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China) Abstract:Acrylic acid rare earth complex was prepared. Its chemical composition was determined by chemical......
were analytically pure, with purity greater than 99.9%. Deionized water was used in the experiment. The commercial sulfuric acid used was reagent grade with a concentration of 98% H2SO4 (Chongqing... into powders with the particle sizes <75 μm and then leached in sulfuric acid with a constant pH of 2.5 at leaching temperature of 50 °C, liquid/solid ratio of 20:1 (mL/g), and reaction time of 60......
extraction, Al3+ remained in the raffinate can be dropped to 0.4 mg/L, and cobalt is not lose. Under the condition of sulfuric acid concentration 2 mol/L, adding 0.5-0.7 g straw powder into 1g battery slag...; 文献标志码:A Electrolytic stripping-biomass acid leaching-recycling spent Li-ion battery XU Xiao-qun, MAN Rui-lin, ZHANG Jian, LIU Qi, XU Juan, SUN Zu-mei (College......
. The experiments were performed with solid weight percentages of 30 wt%, 35 wt%, 40 wt% and 45 wt% in water. The measurements revealed that adding sulfuric acid all at once to the tank rapidly increased...Experimental investigation and adaptive neural fuzzy inference system prediction of copper recovery from flotation tailings by acid leaching in a batch agitated tankJalil Pazhoohan1,Hossein......
in pressure field. Optimum parameters for the leaching of vanadium for one-step leaching are: reaction time of 3 h, sulfuric acid concentration of 200 g/L, leaching temperature of 180 ℃ and stirring speed..., Yoshizuka K, et al. Extraction and selective stripping of molybdenum(Ⅳ) and vanadium(Ⅴ) from sulfuric acid solution containing aluminum(Ⅲ), cobalt(Ⅱ), nickel(Ⅱ) and iron(Ⅲ) by LIX63 in Exxsol D80[J......
原矿及不同盐酸浓度浸出尾渣的XRD谱 Fig. 13 XRD patterns of vanadium steel slag and tailings leached by different acid concentrations 表3 含钒钢渣和预处理后尾渣化学组成表 Table 3 Composition of vanadium-bearing steel... in alkaline media[J]. Russian Journal of Non-Ferrous Metals, 2016, 57(5): 395-404. [28] AARABI-KARASGANI M, RASHCHI F, MOSTOUFI N, VAHIDI E. Leaching of vanadium from LD converter slag using sulfuric......
crosslinked in the solution of acetic acid and sulfuric acid. The microstructure of CWF was conducted by scanning electron microscope (SEM) and X-ray diffraction (XRD). The removal of Cr(VI) from water... J. Cent. South Univ. (2021) 28: 1652-1664 DOI: https://doi.org/10.1007/s11771-021-4724-8 Preparation of chitosan modified fly ash under acid condition and its adsorption mechanism for Cr(VI......
理想, 杨保俊, 等. 蛇纹石酸浸滤液提镁制备针状纳米氢氧化镁[J]. 非金属矿, 2005, 28(1): 35-36HU Zhang-wen, WANG Li-xiang, YANG Bao-jun, et al. Purification of magnesium by sulfuric acid leaching filtrate of serpentine for preparation... morphology was prepared by acid leaching from natural chrysotile. X-ray fluorescence analysis (XRF), powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and N2 adsorption......
