Purification of wet process phosphoric acid in two steps and preparation of industrial grade ammonium dihydrogen phosphate
LI Qing;YAO Mei-huan;WANG Chao;LONG Bing-wen;DENG Fu-li;DING Yi-gang;School of Chemistry and Chemical Engineering;Henan Normal University;Hubei Key Laboratory for Green Chemical Process of Ministry of Education;Hubei Key Laboratory of Novel Chemical Reactor & Green Chemical Technology;Wuhan Institute of Technology;Yangxin County Science and Technology Bureau of Hubei Provice;
Research of drift breaking forms and supporting technology for weak rock mass
ZHENG Zhong;ZHAO Yun-sheng;TAN Bao-hui;School of Safety Science and Administration;Zhongnan University of Economics and Law;Faculty of Engineering;China University of Geosciences;School of Resource and Civil Engineering;Northeastern University;