共搜索到7568条信息,每页显示10条信息,共757页。用时:0小时0分0秒275毫秒
......
Recovery of oxalic acid from mother-liquor containing hydrochloric acid and cobalt by solvent extraction with P350 TIAN Qing-hua(田庆华), GUO Xue-yi(郭学益), LI Zhi-hai(李治海) School of Metallurgical... ____________________________________________________________________________________________ Abstract: The solvent of P350 was applied to extract and separate the oxalic acid from the mother-liquor originated from the precipitation of cobalt by oxalic acid, and its extraction......
Effect of Cerium on Seed Germination under Acid Rain Stress () [全文内容正在添加中] ......
. ......
THE CURING THEORY OF SILlCONE PAINT AND THE STRUCTURE OF COATING FILM王幼平,隋庆海,孙复强摘 要:<正> This paper puts forward the two methods ofweightlessness and alkoxyl group contentdetermination to calculate the amount of cross-linking agent after elaborating the curing essence ofsilicone paint under the action of catalysis,andprovides the theoretical basis......
Triazole derivatives as corrosion inhibitors for mild steel in hydrochloric acid solution Fengling XU1,Baorong HOU1 (1.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;2.Graduate School of Chinese Academy of Sciences, Beijing 100039, China) Abstract:amic parameters of adsorption were determined and discussed. Key words:Materials protection; Acid inhibitor; Triazole......
Applications of carbonic acid solution for developing conversion coatings on Mg alloy YU Bing-lung(余秉隆), LIN Jun-kai(林俊凱), UAN Jun-yen(汪俊延) Department of Materials Science and Engineering...-hydrotalcite (Mg6Al2(OH)16CO3·4H2O) layer and/or calcium carbonate (CaCO3) layer on Mg alloy in a carbonic acid solution system (aqueous HCO3-/CO32- or Ca2+/HCO3-) at 50 ?C were reviewed. Conversion......
......
Effects of Curing Temperature on Rheological Behaviour and Compressive Strength of Cement Containing GGBFS陈平1,2,3,ZHANG Shuming2,杨华美2,HU Cheng2,31. College of Civil and Architectural Engineering...:The viscoplasticity and compressive strength of cement with high erosion performance were studied. The influences of curing temperature and content of ground......
Influence of Elevated Curing Temperature on the Properties of Cement Paste and Concrete at the Same Hydration Degree王强,SHI Mengxiao,WANG DengquanDepartment of Civil Engineering, Tsinghua University摘 要:Three different curing temperatures(20 ℃, 40 ℃, and 60 ℃) were set, so that the nonevaporable water(w_n) contents of plain cement pastes cured......