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J. Cent. South Univ. Technol. (2008) 15: 808-813 DOI: 10.1007/s11771-008-0149-x Thermal decomposition behaviour of polyacrylamidomethyltrimethyl ammonium chloride in red mud separation process HU... for selecting highly efficient red mud flocculants, the behaviour of polyacryl- amidomethyltrimethyl ammonium chloride (PATAC) in red mud separation process was investigated. PATAC was employed......
J. Cent. South Univ. Technol. (2008) 15: 378-381 DOI: 10.1007/s11771-008-0071-2 Flotation of kaolinite and diaspore with hexadecyl dimethyl benzyl ammonium chloride HU Yue-hua(胡岳华), OUYANG Kui.... And then the synthesized tertiary amine was used to react with benzyl chloride to synthesize hexadecyl dimethyl benzyl ammonium chloride (1627) at ambient pressure. Using the synthesized 1627......
Trans. Nonferrous Met. Soc. China 24(2014) 1596-1603 Extraction of alumina from fly ash by ammonium hydrogen sulfate roasting technology Ruo-chao WANG, Yu-chun ZHAI, Xiao-wei WU, Zhi-qiang NING, Pei.... The optimal conditions of the whole technology were determined by experiments. The quality of α-Al2O3 product is up to the technical indicator of YS/T 274-1998 standard. Key words: fly ash; ammonium......
distilling ammonium carbonate were also conducted by adding sufficient magnesium sulfate. The experimental and thermodynamically calculated values of the silicon concentrations are listed in Table 2...: The reaction behaviors of silicate species in (NH4)2WO4-(NH4)2CO3-NH3-H2O system are crucial to developing a green manufacture technique for ammonium paratungstate. In order to efficiently remove silicon......
Removal of SO42-, uranium and other heavy metal ions from simulated solution by sulfate reducing bacteria WANG Qing-liang(王清良)1, 2, DING De-xin(丁德馨)2, HU E-ming(胡鄂明)2, YU RUN-lan... and results in the groundwater contamination. The effects of pH values of the simulated solution on the reduction of SO42- and the removal of uranium and other heavy metal ions by sulfate reducing bacteria(SRB......
; (1) During the titration, Ti4+ was reduced to Ti3+ with aluminum sheet and titrated with 0.1027 mol/L ammonium iron (III) sulfate, using acid ammonium thiocyanate as an indicator. The concentration...Trans. Nonferrous Met. Soc. China 25(2015) 3475-3483 Influence of magnesium and aluminum salts on hydrolysis of titanyl sulfate solution Fu-qiang FANG1,2,3, Ya-hui LIU2,3, Fan-cheng MENG1,2,3, Wei......
Treatment of simulated wastewater from in situ ching uranium mining byzerovalent iron and sulfate ducing bacteria YI Zheng-ji(易正戟)1, 2, LIAN Bin(连 宾)1, YANG Ying-qun(杨颖群)2, ZOU Jian-ling(邹建陵)2 1...) and sulfate reducing bacteria (SRB) can function synergistically and accelerate pollutant removal. Batch experiments suggest that combining ZVI with SRB can enhance the removal of U(Ⅵ) synergistically......
was discussed based on XPS, FTIR and energy calculation. 2 Experimental 2.1 Materials The m-phenylenediamine, ammonium persulfate, ethanol, ammonia and sodium sulfate of analytical reagent grade were... industrial effluent [J]. Chemical Engineering Journal, 2008, 141(1-3): 89-98. [15] Lee H J, Oh S J, Moon S H. Recovery of ammonium sulfate from fermentation waste by electrodialysis [J]. Water Research, 2003......
that with deoxygenizing, the reduction effects are relatively good. Key words: gold; gold extraction; NH4Cl-NH3-H2O; hydrometallurgy; thermodynamics; ammonium chloride ammonium chloride as extracting system is a new developing field with many merits. Above all, NH3 and Cl- ions existing in the system have......
Thermal stability assessment of anti-explosive ammonium nitrateLijin Shen and Xuguang Wang Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, ChinaBeijing General Research Institute of Mining and Metallurgy, Beijing 100044, China摘 要:<正>The explosivity experiment of anti-explosive ammonium......