Determination of specific heat capacity of sulphide materials at temperatures below 100 degrees C in presence of moisture

作者：Ngabe Barnabe^*; Finch James A

来源：Minerals Engineering, 2014, 58: 73-79.

DOI：10.1016/j.mineng.2014.01.013

• Nickel concentrate
• Copper concentrate
• Specific heat capacity
• Self-heating apparatus
• Drop calorimetry

The specific heat capacity (C-p) of one copper and three nickel concentrates was determined using a self-heating apparatus and by drop calorimetry over the temperature range 50 to 80 degrees C in the presence of 6% moisture. The C-p values from both techniques were comparable and shown to be measuring the same property. The C-p values were similar for all four concentrates increasing from ca 0.4 to 1.4J g(-1) K-1 as temperature increased from 50 to 80 degrees C. Uses of C-p to identify self-heating risk and to modify the Rosenblum standard test are discussed.

• 出版日期2014-4
• 单位McGill