Production of aluminium hydro ozychloride made from aluminium chip by the alkali-acid method
Aluminium chip recycling associated with a lot of dif ficulties: crowding,much oxidizing (burn-off) of the chip observed at secondary aluminium alloys melting. The one of the most rational usage ways of aluminium chip is recycling to aluminium hydro oxychloride (HOCHA),which relates to a new generation type co agulants. Metallic chip is been researched contained a row of impurities except aluminium. The average chemical consist of the chip is,% weight;Al -92-96,Fe-1.0,Si-0.01,Mg-1-3,Ca-0.02,Mn-0.2-0.4,Ni-13,Cu-0.2-0.8,Zn-0.05-0.1,Na-0.1-0.5,Pb-O.01-0.05,Cr-0 .1-0.3,V-0.01-0.03. At the dissolution of this composition aluminium chip in saline acid large amount of impurities moved into coagulant solution,stained in intensive blue-green color due to metallic salts pres ence.We suggested the alkali-acid method of alumin ium hydro oxychloride production for reduce the transfer probability of metallic salts into coagulant solution.
YE Lei LI Xiaohong MAO Wei XIONG Huaping CHENG Yaoyong WU Xin
Lab.of Welding and Forging,Beijing Institute of Aeronautical Materials,Beijing 100095,China
国际会议
The 10th China-Russia System on Advanced Materials and Technologies(第十届中俄新材料新工艺研讨会)
浙江嘉兴
英文
831
2009-10-20（万方平台首次上网日期，不代表论文的发表时间）