Abstract：Moisture determination is an important content of mineral raw materials and product analysis in metallurgical industry. It mainly includes the cosignmer water, hygroscopic moisture and combined water. Although the moisture determination method is relative simple, it is involved in raw mineral materials, product settlement and the correction calculation of other chemical analyses, thus it belongs to the important basic determination method. There are corresponding national standards or industrial standards of moisture determination for almost all minerals and products. Some of these standards are imported from foreign ISO standard system. The determination methods for cosignmer water, free water, hygroscopic moisture and combined water in various raw mineral materials and products were introduced and compared. The meaning of hygroscopic moisture in ISO standard system and China standard system had great difference. Moreover, the determination operations and purposes were also different. Therefore, the measurement data of hygroscopic moisture would be greatly different if the air balance sample and sealed original sample were used. The meaning of two kinds of hygroscopic moisture should be clearly distinguished. The determination of chemical weighing sample, loss on ignition and combined water was affected by hygroscopic moisture. Therefore, more accurate determination results could be only obtained by correcting the hygroscopic moisture.
鞠溯,袁晓鹰,胡首鹏,等.利用机器人对铁矿石进行在线水分测定的方法[J].金属矿山,2010(7):129-131.JU Su,YUAN Xiao-ying,HU Shou-peng,et al.The moisture on-line determination methods for iron ores with the robot[J].Metal Mine,2010(7):129-131.
胡喜恩,郭世汉,张强,等.炼钢辅料化合水控制管理实践[J].江西冶金,2015,35(7):84-88.HU Xi-en,GUO Shi-han,ZHANG Qiang,et al.Management practice of combined water control in auxiliary material for steelmaking[J].Jiangxi Metallurgy,2015,35(7):84-88.
[33]
杨冀华.岩石矿物中化合水测定[J].岩矿分析,1998,17(3):211-215.YANG Yi-hua.Determination of combined water in rocks and minerals[J].Rock and Mineral Analysis,1998,17(3):211-215.
[34]
龙梅,裴世桥.近红外反射光谱学在岩石矿物研究中的应用I.快速测定地质样品中化合水[J].岩矿测试,2003,22(3):169-173.LONG Mei,PEI Shi-qiao.Study on apply of near-infrared reflectance spectroscopy in rock and mineral analysis I.Rapid determination of combined water in geological samples[J].Rock and Mineral Analysis,2003,22(3):169-173.
[35]
杨冀华,骆红玉.碳酸盐对平菲特法测定岩矿中化合水的影响[J].岩矿测试,1992,11(4):345-347.YANG Yi-hua,LUO Hong-yu.Interference from carbonates to the determination of combined water by Penfiled method[J].Rock and Mineral Analysis,1992,11(4):345-347.
[36]
魏建录,樊艳霞,王海潮.双管球重量法测定珍珠岩样品中化合水含量的不确定度评价[J].山东化工,2014,43(1):69-70.WEI Jian-lu,FAN Yan-xia,WANG Hai-chao.Uncertainty evaluation of measurement results for the determination of combined water in perlite samples by double tube gravimetry[J].Rock and Mineral Analysis,2014,43(1):69-70.
[37]
高清泽,吴斌,韩文强.新型双通道卡尔费休微量水分测定仪的研制[J].分析试验室,2012(2):118-123.GAO Qing-ze,WU Bin,HAN Wen-qiang.Development of a kind of two-channel Karl Fischer instrument for measuring trace water[J].Chinese Journal of Analysis Laboratory,2012(2):118-123.
ISO 12926:2012 Aluminium fluoride for industrial use Determination of trace elements Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets[S].
高新华,舒军,张鹏.铝电解质分子比的X-射线荧光光谱法测定[J].冶金分析,2007,27(2):24-28.GAO Xin-hua,SHU Jun,ZHANG Peng.Determination of molecular ratio of aluminium electrolyte by using X-ray fluorescence spectrometry[J].Metallurgical Analysis,2007,27(2):24-28.
