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随着高品位硅质磷酸盐矿床的不断开采和消耗,迫使人们不得不去研究探寻一种新的经济可行的加工技术来替代现有生产工艺。目前还未开采的白云石质沉积型磷酸盐矿的加工处理正面临许多问题,这是因为碳酸盐和磷酸盐具有相似的表面性质,此外,在浮选矿浆中溶解组分的浓度较大。本文以白云石—磷灰石体系为研究对象,详细讨论了无机药剂吸附和表面转化现象。动电位、吸附特性和悬浮结果表明,当把白云石和磷灰石放入普通的水溶液中时,这两种矿物发生明显的相互作用;相应地,当使用物理吸附的捕收剂时,这种转化会对浮选产生很大影响。同样这种表面转化对浮选厂的生产实践也会产生强烈的影响。
With the continuous exploitation and consumption of high-grade siliceous phosphate deposits, people are obliged to study and explore a new economically viable processing technology to replace existing production processes. The processing of dolomitic sedimentary phosphate ore, which is currently undeveloped, is facing a number of problems due to the similar surface properties of carbonate and phosphate, in addition to the higher concentration of dissolved components in the flotation pulp . In this paper, the dolomite-apatite system as the research object, discussed in detail the inorganic agent adsorption and surface conversion phenomenon. The kinetic potentials, adsorption properties and suspension results show that there is a clear interaction between the two minerals when dolomite and apatite are placed in common aqueous solutions; accordingly, when using physically adsorbed collectors, this Conversion will have a great impact on flotation. The same transformation of the surface of the flotation plant production practices will have a strong impact.