There are many cases of Xinhai CuPbZn Dressing Process. Welcome to visit our company! A copperleadzinc dressing plant in northwest of China, Xinhai adopted parts preferential flotation based on technology advantages of preferential and mixed flotation and combined with the ore characteristics.
2011516&ensp·&enspthroughout China. The term early metals refers to all preShang (pre16th century BCE) metal objects found in China that are made of pure copper (hongtong , Cu), brass (huangtong , CuZn), arsenic copper (shentong , CuAs) and bronze (qingtong
The maximum Zn value in light soil used in cultivation in India given by KabataPendias and Pendias (2000) was 100 mg kg1.The threshold natural background value of Zn in crop soils and paddy soils in China is 100 mg kg1.In Table 2, the concentration of Zn was found 7906.5 mg kg1 in the sludge samples, which was higher than those of permissible levels given by different nations.