Get a Quote

what is the role of fatty acid in froth flotation process

fatty acid collectors for phosphate flotation and their

fatty acid collectors for phosphate flotation and their

In this paper the relationship between the flotation performance of phosphate collectors and their adsorption behavior was evaluated using a variety of techniques including the Crystal Microbalance with Dissipation technique (QCM-D). The adsorption of the collectors on the surface of hydroxyapatite was primarily characterized using QCM-D, which is a high sensitivity in-situ surface characterization technique. Additionally, the collectors were evaluated via zeta potential and FTIR analyses. The flotation performance of the collectors was evaluated using a laboratory mechanical flotation cell at different process parameters such as pH, collector dosage, diesel dosage and flotation time. The two collectors evaluated were a commercial plant collector and a refined tall oil fatty acid. The QCM-D data showed that the refined tall oil fatty acid adsorbed on phosphate more readily and produced stronger hydrophobicity and better flotation performance than the plant collector. The chemisorption and surface precipitation mechanisms of the refined tall oil fatty acid on the surface of hydroxyapatite were demonstrated by means of zeta potential measurements and FTIR analysis.

froth flotation of fluorite: a review - sciencedirect

froth flotation of fluorite: a review - sciencedirect

Fluorite, as a scarce nonrenewable strategic non-metallic mineral resource, is the primary raw material for fluorine products used in diverse fields such as metallurgy, national defense, chemical and optical industries. With the increasing expansion of the related fields, the demand for high-quality fluorite continues to grow. Hence, the surge of interest in effectively utilizing fluorite resources has led to vast attention worldwide. So far, significant endeavors have been done to enhance the beneficiation of fluorite from relatively low-grade ores. It has been well appreciated that the froth flotation is of the most importance. However, to the best of the authors' knowledge, it lacks a thorough and critical review on the recent developments in fluorite flotation. This article begins with introducing the deposits and unique physical and chemical properties of fluorite from the perspective of the crystal structure. It is followed by a systematic review of common reagents involved in fluorite flotation, including collectors, depressants, regulators, modifiers, and frothers. Specifically, the synergistic effect of collectors and depressants on the recovery of fluorite is elaborated for the first time. Finally, the most widely seen fluorite-flotation cases, including separation of fluorite from quartz, calcite, barite, and sulfide, are summarized individually. The present review sheds new light on the deep understanding of fluorite flotation, the future synthesis of reagents, as well as their schemes in practical use. Meanwhile, such a novel rain of thought provided in this work has the potential to guide the flotation of other similar minerals extensively.

Related News
Contact Us

Do you need to know the product price? model? Configuration scheme? Output? Please leave your correct message and we will reply you within 24 hours.

I accept the Data Protection Declaration