共 50 条
- [31] BENEFICIATION STUDIES ON CALCITE BEARING PHOSPHATE ROCK FROM KANPUR (RAJASTHAN). Indian Journal of Technology, 1973, 11 (02): : 78 - 82
- [32] Beneficiation of Abu Tartur phosphate rock by partial acidulation with formic acid 1600, Alexandria University, Alexandria, Egypt (44):
- [34] BENEFICIATION OF UNWEATHERED INDIAN CALCAREOUS PHOSPHATE ROCK BY CALCINATION AND HYDRATION. Report of Investigations - United States, Bureau of Mines, 1976, (8154):
- [35] STUDY OF SMOOTH BLASTING EFFECTS ON TUNNELLING IN JOINTED HARD ROCK. Doboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers, 1988, 8 (391): : 220 - 227
- [36] Direct production of sodium ortho- and/or pyrophosphates and gypsum binders from phosphate rock. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1997, 214 : 5 - FERT
- [38] Beneficiation of Abu Tartur phosphate rock by leaching with dilute acetic acid solution 1600, Alexandria University, Alexandria, Egypt (44):
- [39] Effects of phosphate rock on sequential chemical extraction of lead in contaminated soils J. ENVIRON. QUAL., 3 (788-794):