Search

The effects of two grinding aids, glycerol and sodium pyrophosphate, on the grinding kinetic behavior of 0.074~2mm quartz pure mineral in the material were systematically investigated by using batch wet ball milling experiments. Based on the grain size distribution characteristics of grinding products, m order grinding kinetic models of quartz in the grinding process were established. The influence of the amount of grinding aid on the kinetic parameters and grinding speed of quartz was analyzed. The results show that the quartz grinding process conformes to the m order grinding dynamics model. With the increase of the dosage of glycerol and sodium pyrophosphate， the kinetic parameter k decreases first and then increases, and the kinetic parameter m increases first and then decreases. The maximum value is reached when the dosage of grinding aids is 0.3%~0.5%. Under the same grinding conditions, the grinding speed of 0.45~1mm particle size is the maximum. [ABSTRACT FROM AUTHOR]

Copyright of Nonferrous Metals (Mineral Processing Section) is the property of Beijing Research Institute of Mining & Metallurgy Technology Group and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)