[1] 1 Geol Team Shandong Prov Bur Geol & Mineral Resou, Jinan, Peoples R China
[2] Chengdu Univ Technol, Coll Mat Chem & Chem Engn, Chengdu, Peoples R China
[3] Chengdu Univ Technol, Energy Coll, Chengdu, Peoples R China
[4] Jinan Petrochem Design Inst, Jinan, Peoples R China