Gypsum supersaturation in process water is known to have detrimental effects on flotation performance of sulphide minerals. The motivation of this research is to develop a better understanding of the impact of gypsum supersaturation in process water on sphalerite flotation.
Correlation between copperactivated pyrite flotation and surface species: Effect of pulp oxidation potential
Generally, copper oxide minerals do not respond to standard sulfide copper collectors and require the appliion of different flotation techniques . The treatment of copper sulfide minerals containing a high percentage of oxide copper causes problems in the concentration process, decreasing the copper .
Jun 12, 2017 · In this study, chitosan polymer was tested as a potential selective green depressant of pyrite in the bulk flotation of galena (PbS) and chalcopyrite (CuFeS 2 ) from sphalerite (ZnS) and pyrite (FeS 2 ) using sodium isopropyl xanthate as a collector and 4methyl2pentanol (MIBC) as a frother. Flotation tests were carried out in a D12Denver flotation laboratory cell in the presence and ...
A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate ...
Gypsum can cause effects such as the scaling of pipelines, and these effects must be monitored and managed, and maintenance carried out whereget price Froth flotation Wikipedia Froth flotation is a process for selectively separating hydrophobic materials from is used in mineral processing, paper recycling and wastewater ...
Abstract The slurry pH shows significant effects on flotation, but the root cause of pH affecting flotation in the presence of clay is still not fully understood. In this work, the mechanisms of protonation and deprotonation reactions of clays at weakly acidic (pH = ) and alkalescent (pH = ) environment affecting pyrite flotation were investigated.
Abstract Depressing copper sulfides using sodium hydrosulfide (NaHS) in the flotation of molybdenite is a common practice. However, the effect of NaHS on the flotation of molybdenite is not clear despite a number of studies. In this study, the effect of NaHS concentrations which depressed the flotation of chalcopyrite on the flotation of molybdenite of different particle sizes was investigated.
A copper dressing plant in Jiangxi province of China deals with raw ore in the capacity of 185,000 t/a, and its copper recovery is % while % copper still remained in tailings, and a considerable amount of copper is lost in coarse particles tailings. Coarse particles with large size and big mass are very easily detached from bubbles in flotation process, so it is difficult for the plant ...
Gypsum complements or even magnifies the beneficial effects of watersoluble polymers used as amendments to improve soil structure (Wallace and Nelson 1986). Like for organic matter, calcium, which comes from gypsum, is the mechanism for binding of the watersoluble polymers to the clay in soil.
The results show that as cement replacement materials especially clinoptilolite had clear effects on the mechanical properties. Substitution of 5% copper flotation waste for Portland cement gave a similar strength performance to the reference mixture. Higher copper flotation waste addition such as % replacement yielded lower strength values.
The effect of sea water on copper and gold flotation in the presence of bentonite. Minerals Engineering, 77 4607, 9398. doi: / The interaction of clay minerals with gypsum and its effects on coppergold flotation. Cruz, Nestor, Peng, Yongjun, Wightman, Elaine and Xu, Ning (2015).
Feb 01, 2018 · authors, the effect of gypsum on the flotation of a coppergold. ore in the presence of clay minerals was investigated (Cruz et al. 2015c). As shown in Figure 11, the presence of 15% bentonite.
The material from the flotation plant was separated into three concentrates: iron, zinc, and copper sulfides. The water was removed and they were filtered. The copper concentrate went to the smelters where some of the sulfur content was removed and recovered for sulfuric acid. The remaining copper, called calcine, was roasted in a furnace.
From Forward: "When the experiments described in this bulletin were begun many of the reagents were available only in trial quantities. Some of them are now available in commercial quantities and are of different compositions from those that were available for experimental work. It was not possible to determine the exact chemical composition of some of the reagents."