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In this study, soluble phosphorus and fluorine were removed by adding lime, and flotation was employed to purify phosphogypsum. A large amount of organic matter and fine slime in the …
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The invention discloses a method for purifying sintering flue gas desulfurized gypsum and is characterized in that the following steps are included: (1) the reverse flotation technology: one …
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The invention relates to the technical field of mirabilite gypsum purification, in particular to a high-efficiency mirabilite gypsum flotation purification process, which comprises the steps of firstly …
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The high aerating open flow type DR flotation machine was developed specifically to meet modern requirements. Principle of operation The DR flotation machine is the first mechanical open type …
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Via the closed-circuit flotation process, the whiteness of the PG concentrate is improved from 33.23 to 63.42, and the purity of gypsum in the PG concentrate increases from 83.90% to …
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For the flotation of gypsum-containing raw, fatty acid reagents are commonly used (Bulut et al. 2008; Matsuno et al. 1958). We proposed a new flotation reagent perlastan ON 60 …
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wallboard, gypsum must be partially dehydrated or calcined to produce calcium sulfate hemihydrate (CaSO4 ½H 2O), commonly called stucco. A flow diagram for a typical gypsum …
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the phosphogypsum were removed by reverse flotation, and gypsum was floated by positive flotation. Through the flotation closed-circuit experiment, the whiteness of phosphogypsum …
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After flotation, the purity of gypsum was increased from 87.58 % to 96.09% with a recovery of 92.21%, the whiteness of PG was improved from 43.79% to 57.47%, and the …
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From these flotation results it can be inferred that the presence of bentonite reduced true flotation, but the presence of gypsum caused bentonite to behave more like kaolinite. …
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Via the closed-circuit flotation process, the whiteness of the PG concentrate is improved from 33.23 to 63.42, and the purity of gypsum in the PG concentrate increases from 83.90% to 96.70%, with ...
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The main mineral in the gypsum concentrate was gypsum, and limited amounts of muscovite and zoisite entered the gypsum concentrate because of the mechanical entrainment of the flotation process. In this study, …
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2.2.2. Flotation tests A 0.75 dm3 XFD type flotation machine was employed to perform flotation experiments. In each flotation test, 250 g of sample was used. YPN is a highly effective …
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Download scientific diagram | Flow chart of grinding test before desliming. from publication: The study on the effect of flotation purification on the performance of α-hemihydrate gypsum …
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The flow rate of air was 10 cm 3 /s. The initial height of the s was used to evaluate the ing properties of PASF when the solution produced the s. 2.9. ... After …
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Gypsum was recovered using a direct flotation method, which included one roughing, one scavenging, and two cleaning operations, from −0.15 mm to +0.025 mm. The test results show that a gypsum concentrate with a …
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The invention relates to a method for removing silicon from phosphogypsum in an obverse floatation way under an acidic condition, comprising the steps of (1) adding waste liquid of pool …
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Phosphogypsum (PG) is a massive industrial solid waste. In this paper, PG was purified by flotation method, and α-hemihydrate gypsum (α-HH) was prepared by the …
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Level and Flow Analyzer for Flotation Cells The FloLevel system because of its repeatable level accuracy measuring Pulp/Slurry height and Froth height as well as having the capability to …
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In-depth investigations suggest that the difference in the floatability of gypsum and quartz is prominently intensified by flotation reagents at pH = 2–2.5, and thus leads to good …
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The dissociation degree of the gypsum mineral phase in PG is as high as 90.47% and the impurity mineral phase is majorly enriched in the conjoined mineral with 20%–60% …
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In this paper, PG was purified by flotation method, and α‐hemihydrate gypsum (α‐HH) was prepared by the autoclaving method. The morphology of α‐HH was adjusted by adding …
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The plaster produced with purified PG was found to have similar properties to that produced from natural gypsum. Flow diagram for phosphogypsum purification process. Major …
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GA Launches Site Promoting Glass Mat Gypsum Sheathing in Residential Construction Visit gypsumsheathing to discover the benefits of using glass mat gypsum sheathing in …
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The flotation behaviors of gypsum and quartz as a function of pulp pH by using TDBAC as collector were investigated and the results are shown in Fig. 3. It can be observed that the …
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Download scientific diagram | Flow chart of dodecylamine dosage test. from publication: The study on the effect of flotation purification on the performance of α-hemihydrate gypsum prepared …
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For these studies, growth solutions supersaturated with respect to gypsum were prepared by mixing equimolar CaCl 2 and (NH 4) 2 SO 4 solutions up to a final Ca 2+ and SO …
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The flotation behaviors of gypsum and quartz as a function of pulp pH by using TDBAC as collector were investigated and the results are shown in Fig. 3. It can be observed …
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Finally, gypsum concentrate was flotation by adding dodecylamine, and the product in the tank was tailings2. All test samples were dried at a temperature of 42 °C and used to …
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It is well-established that flotation reagents such as collector and frother are critical in impurity removal and whiteness enhancement. Pine oil, MIBC, and tributyl phosphate were …
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