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Citation: YANG Bao-Jun, YU Shao-Ming, HOU Li, SHAN Cheng-Xiang. Effects of Sulfuric Acid Concentration on the Leaching Rate of MgO from Serpentine[J]. Chinese Journal of Applied Chemistry, ;2001, 18(3): 196-199. shu

Effects of Sulfuric Acid Concentration on the Leaching Rate of MgO from Serpentine

1.
Institute of Chemical Engineering, Hefei University of Technology, Hefei 230009

Received Date: 27 June 2000
Available Online: 25 December 2000
Fund Project: 安徽省自然科学基金资助课题(980602E₂) (980602E₂)

The influence of sulfuric acid concentration on the leaching rate of MgO from serpentine was studied,and the leaching rate equation of MgO can be expressed as r_MgO=k₁C_H^mC_Mgoⁿ in a large excess of sulfuric acid,where the reaction orders m=0.20~0.24,n=2,the apparent activation energy E_a=85~95 kJ/mol;at practical leaching conditions the leaching rate equation of MgO has the form:dr_MgO'/dt=k²(7.144-3.40r_MgO')^0.226(1-r_MgO')².
- serpentine,
- sulfuric acid leaching,
- kinetics
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