grinding of quartzin amine solutions

mechanisms of grinding modification by chemical additives

correlated with the grinding results. amine was found to improve grinding, pulp fluidity, and primary breakage of quartz suspensions, especially in the alkaline ph range. these beneficial effects are attributed to the forma-tion of highly surface-active amineaminium complexes in this ph range. in contrast to the above, amine decreased the grinding rate in

grinding solutions quartz

solutions the addition of amine appears to be detrimental at all amine levels. also, in the neutral ph range, addition of amine at levels lower than 10""3 mole/l is found to lead to reduced grinding of quartz.

mechanochemical effects in ultrafine grinding

the use of chemical additives in ultrafine grinding will be reviewed in this paper for the of grinding of quartz in solutions of surfactants and inorganic electrolytes including some dispersants under different conditions of ph and ionic strength. mechanisms are examined by correlating the grinding effects with those obtained for the influence of these chemicals on zeta potential, pulp

international journal of mineral processin,. 6 1979 105

of amine solution are given in fig. 4. it is clear that the size distribution plots obtained for the same product obtained from grinding in 1 1"1 mole l amine solution but dispersed in one using 8 g of sodium silicate 16.4 lb ton and in the other using alcohol and acetone washes are distinctly differ-ent from each other.

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grinding of quartz in amine solutions sciencedirect the observed effects of the addition of amine on the grinding of quartz in a bail mill under these condi tions i ec process design and development

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grinding of quartz in amine solutions

grinding of quartz in amine solu- tions. int. j. miner. process., 6: 105--117. this study, initiated to investigate the effect of additions.of surface active reagents on the wet-grinding of ores, has shown that improved grinding can be obtained at certain levels of amine concentration and ph.

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grinding solutions quartz

grinding of quartz in amine solutions - sciencedirect this study, initiated to investigate the effect of additions of surface active reagents on the wet-grinding of ores, has shown that improved grinding can be obtained at certain levels of amine concentration and ph.

quartz grinding solutions

grinding solutions quartz - weekendschool-denhelder.nl. grinding of quartz in amine solutions . this can not be correlated with the grinding rates obtained in amine solutions since even amine solutions with- out any quartz fines are found to become turbid under such ph conditions due to its precipitation.

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grinding quartz

home - solutions - grinding quartz. grinding quartz. quartz grind stone comparative estimates of the strength of dry and wet quartz in grinding a physicochemical description of the fracture process of wet quartz is given for the where a proton or atomic these results show that grinding of quartz can be improved by amine if other

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mechanisms of grinding modification by chemical additives

correlation of the grinding results in amine solutions with the results of basic studies b. neutral solutions ph 5.9 conducted under simulated chemical condi- a the grinding data suggesta slight de- tions hasled to the following conclusions: creasein the grinding rate in 10-5 molll 1.

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physico-chemical aspects of grinding: a review of use of

the effect of the additive was found, in this case, to depend on its concentration and the ph of the solution- the authors correlated their grinding results with the zeta potential of quartz in amine solutions- they concluded that grindability was minimum under conditions of zero zeta potential- it should be noted that the investigators have not taken into account the possibility of surface contamination by aluminum species from the porcelain mill and consequent effects on the interfacial