1. Separation of nickel from calcium with Versatic 10 and synergist CLX50;Cheng,2000
2. SX applications for nickel and cobalt: pros and cons of existing processes and possible future developments;Cheng,2003
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4. Purification of laterite leach solutions by direct solvent extraction;Cheng,2003
5. A study on the chemical stability of the Versatic 10-Acorga CLX50 synergistic system;Cheng;Min. Eng.,2002