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; WC-Co; Murakami-acid pretreatment; Co content; Co evolution 1 Introduction Cemented carbides alloyed with varieties of metals (e.g., Co, Ni, Fe) have been extensively employed for producing cutting... cobalt cemented tungsten carbide (WC-Co), many pretreatment techniques were proposed with the purpose of removing the Co element, for instance, selective Co etching by the acid [5], Murakami-acid [6,7......
J. Cent. South Univ. (2020) 27: 469-477 DOI: https://doi.org/10.1007/s11771-020-4309-y Process control technology of low NOx sintering based on coke pretreatment WANG Zhao-cai(王兆才)1, 2, ZHOU Zhi...; nitrogen oxide; process control; coke breeze pretreatment Cite this article as: WANG Zhao-cai, ZHOU Zhi-an, GAN Min, FAN Xiao-hui, HE Guo-qiang. Process control technology of low NOx sintering based on coke......
Effects of H2O2 pretreatment on surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy CHU Cheng-lin(储成林)1, HU Tao(胡 涛)1, ZHOU Jun(周 俊)1, PU Yue-pu(浦跃朴)2, YIN Li-Hong(尹立红... Abstract: The effects of H2O2 pretreatment on the surface characteristics and bioactivity of NaOH-treated NiTi shape memory alloy(SMA) were investigated by scanning electron microscopy, X-ray......
of microwave irradiation[16]. Based on the advantage of microwave pretreatment mentioned above. In this work, a new technology for microwave pretreatment of spent catalyst of zinc in hydrochloric acid solution... the different effects of pretreatment temperatures and holding times. The leaching condition chosen in this work was as follows: the leaching agent 30 g/L hydrochloric acid solution; the stirred time 60 min......
of acid of pressure pretreatment with oxygen in acidic medium was neutralized by the tailings of flotation and the cost of neutralization will be lower. The combined technology of pressure pretreatment...Research on Technology of Pressure Pretreatment with Oxygen for Refractory Gold Ores Sun Tichang1,Wang Dianzuo2,Liu Shengming1,Chen Jinghe3 (1.Mineral Processing Department of Civil......
Optimization of Fenton pretreatment for 2-chlorophenol solutionHe Zhong-bing(贺仲兵)1, 2, 3, Liu Yun-guo(刘云国)1, 2, Xiao Yu(肖玉)1, 2(1. College of Environmental Science and Engineering, Hunan University..., Kaili 556000, China)Abstract:Fenton oxidation was used as the pretreatment of 2-chlorophenol wastewater with the objective of dechlorination, as it was considered that after breakage of aryl-Cl bond......
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J. Cent. South Univ. (2019) 26: 577-586 DOI: https://doi.org/10.1007/s11771-019-4029-3 Pretreatment of poly (acrylic acid) sodium by continuous diafiltration and time revolution of filtration...-Verlag GmbH Germany, part of Springer Nature 2019 Abstract: The pretreatment for the removal of small molecules from poly(acrylic acid) sodium (PAAS) solution by continuous diafiltration......
Engineering,Northeastern University2. College of Zijin Mining,Fuzhou University摘 要:Hydrophobic flocculation pretreatment was performed to assess its effect... of fine particles(<18 μm) impacted the recovery of coarse particles. When hydrophobic flocculation pretreatment was used, the recovery of fine cuprite in sulfidation-flotation increased from 60.3......