Recent technological breakthroughs in phosphate processing
This paper gives a review of promising technologies for phosphate processing, and covers flotation, analysis and process control, as well as tailings treatment and utilization. Air bubbles of less than a μm in size, combined with relatively large bubbles, have been demonstrated, both in the lab and on a pilot scale, to improve …
Reagents used in the flotation of phosphate ores: a critical …
Beneficiation of phosphate-ores by flotation is the best method and more than half of the world's marketable phosphate is produced by froth flotation. However, sedimentary phosphates with high carbonates (e.g., Southern Florida and …
Reagents used in the flotation of phosphate …
In addition, flotation tests and X-ray fluorescence show that the required quality of phosphate concentrate was obtained at 31.05% P 2 O 5 with a recovery of 98.21% at pH 5.
Improved Control of Phosphate Flotation means of a …
Improved Control of Phosphate Flotation by means of a Simple Mineralogical Regression Model J.L. GAIGHER and G.J. VAN NIEKERK Phosphate Development Corporation Ltd, Phalaborwa, South Africa. A simple mineralogical regression model is described, which was devised in order to help the flotation plant cope with rapidly …
Phosphate Mining Solutions | Nalco Water
From programs that optimize the phosphate flotation process for maximum recovery to advanced scale control solutions that reduce the amount of downtime needed for scale cleaning, Nalco Water offers a comprehensive suite of solutions that can be customized to fit your needs. By choosing the appropriate partner, you can significantly improve the ...
Anionic flotation of high-iron phosphate ores—Control of …
DOI: 10.1016/J.MINPRO.2009.02.003 Corpus ID: 98454226; Anionic flotation of high-iron phosphate ores—Control of process water chemistry and depression of iron minerals by starch and guar gum
Enhancing selective calcite and dolomite flotation in the phosphate …
This paper presents a comprehensive study on the selective flotation of a multi calcium-bearing minerals ore, focusing on the efficient removal of dolomite and calcite impurities from a carbonaceous sedimentary phosphate ore. Commercial fatty acid (FA) and phosphate ester collectors were investigated in a reverse flotation process, …
NaHCO3 synergistic electrokinetics extraction of F, P, and …
In this study, the NaHCO 3 synergistic electrokinetic method was used to remove F, P, and Mn from phosphate ore flotation tailings (PTs). First, using PHREEQC simulation calculations, the occurrence forms of P, F, and Mn in the PTs were determined. Thereafter, under various electrokinetic treatment conditions, the variation trends …
Lecithin as an ecofriendly amphoteric collector ing …
Phosphate rock needs processing to reduce the content of gangue minerals such as silicates, carbonates, and clays to meet the requirements of the phosphate industry. Froth flotation method has ...
Review of the reagents used in the direct flotation of phosphate ores
Beneficiation of low-grade phosphate deposits through direct froth flotation has captured more attention to satisfy the future needs of phosphorous industry. This is owing to the excessive consumption of the global reserves of high-grade phosphate deposits. Phosphate flotation using mixed collectors has been proved to give greater selectivity …
Roles of various composts based on phosphate flotation …
The use of composts promotes plant growth and physiology as a promising sustainable strategy. The main objective of this study is to evaluate the impact of phosphate flotation waste (PFW) and phosphogypsum (PPG) composts on the growth and physiology of tomato plants under two water regimes (40% field capacity (FC) and …
Optimizing Adaptive Process Control for Phosphate Flotation
An optimizing, adaptive process control system for a phosphate processing plant has been designed and tested using actual data from an operating phosphate processing plant. …
Review of the reagents used in the direct flotation of …
Magnesium, calcium, phosphate, and fluoride are the most ionic species with a detrimental effect on the direct flotation of phosphate ore (dos Santos et al. 2010, 2012). Apatite …
A mixed collector system for phosphate flotation
The phosphate ore sample for the batch flotation tests was obtained from the Wenfu Phosphate Company located in Guizhou Province, China. A chemical composition analysis showed that the ore contained 25.50% P 2 O 5, 18.98% of acid insoluble (A.I) and 6.83% of loss on ignition (L.O.I), as shown in Table 1.XRD and MLA analyses indicated …
Froth modification for reduced fuel oil usage in phosphate flotation
The Florida phosphate industry uses millions of pounds of fuel oil per year for phosphate flotation. It is of significant environmental and economic benefit to reduce the usage of fuel oil. ... The fuel oils currently used to control froth character and increase tall oil collector "pull power" include No. 5 oil, reclaimed oil and possibly ...
Surface Tension Measurement for Optimization of Flotation Control
phosphate flotation plant (Cajati-Braz il), ... The control of flotation circuits has proved difficult in the past, with large variations in reagent dosages, concentrate grade and the recovery of ...
Advancing phosphate ore minerals separation with sustainable flotation
Phosphate reverse flotation involves the employment of several apatite depressants, including phosphoric and sulfuric acids as well as their derivatives, which may be associated with a wide variety of environmental and health issues [9]. ... Anionic flotation of high-iron phosphate ores—control of process water chemistry and …
Fatty acid collectors for phosphate flotation and their adsorption
The refined tall oil fatty acid, referred to as GP193G75, was comprised of 47% oleic and 33% linoleic acids. 1 Flotation tests were performed at varying process parameters such as pH, collector dosage and flotation time with phosphate ore from CF Industries' phosphate rock mine in Hardee County, Florida. To better understand the …
Development of Novel Flotation-Elutriation Method for Coarse Phosphate
In the beneficiation of Florida phosphate rock, flotation plays a predominant role because it is the most economical way to separate the phosphate values from the sand and other impurities contained in the matrix. ... Automatic control of the tailings flow rate by a pinch valve coupled to a conductivity sensor has given encouraging results at ...
1 Froth Flotation – Fundamental Principles
1 Froth Flotation – Fundamental Principles. Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air bubbles are then carried to the surface and removed, while ...
Expert Control System for Rougher Flotation of Phosphate
The expert control strategy tested in this simulation study aims maximizing recovery of phosphates from the rougher flotation, while concentrate grade is …
The anisotropic adsorption of potassium cetyl phosphate on …
The flotation of molybdenite fines is a challenging task during mineral processing worldwide. In this work, potassium cetyl phosphate (PCP) was explored as a novel collector to enhance the flotation of molybdenite fines. The flotation performances were assessed by micro-flotation tests.
Reagents in igneous phosphate ores flotation
Reagents used in the flotation of phosphate ores was recently reviewed by Sis and Chander (2003), with emphasis on sedimentary ores. This paper focuses on the flotation of igneous phosphate ores. The largest deposit of igneous phosphate mined today is Kola, in Russia, producing 9 million tonnes of apatite concentrate per year (39% …
Enhancing selective calcite and dolomite flotation in the phosphate …
This analysis was conducted on both the phosphate ore and the carbonate and phosphate concentrates obtained from an optimized flotation process. The results confirmed the success of flotation, yet 12% CFA (≈ 4% P 2 O 5 ) was detected in the carbonate concentrate and was attributed to mineral associations and fine particles …
The Importance of pH in Flotation
The Importance of pH in Flotation. In flotation, pH control is a vital method to control selective mineral separation. A standard depressant that is used is an Alkali. An Alkali is any substance that when mixed with Acid will neutralize each other and form a new chemical substance called a BASE.
Surface Tension Measurement for Optimization of Flotation Control
For the control of phosphate mineral flotation we propose the method of maximum bubble pressure [13]. The principle of this method is described in the following (Figure 2): Typically an inert gas, such as nitrogen is passed through a small capillary into the fluid. At the orifice of the capillary (the gas/liquid interface) the formation of a ...
Utilization of Flotation Phosphate Tailings and Water …
Semantic Scholar extracted view of "Utilization of Flotation Phosphate Tailings and Water Treatment Sludge in Cemented Paste Backfill Based on Phosphate Tailings" by F. Mei et al. ... In order to achieve sustainable development and control environmental pollution, this paper proposes sewage sludge (SS) as an auxiliary …
Reagents used in the flotation of phosphate ores: a critical …
Phosphate rock needs processing to reduce the content of gangue minerals such as silicates, carbonates, and clays to meet the requirements of the phosphate industry. Froth flotation method has been an important part of the concentration process since the 1920s and today, more than half of the world's marketable phosphate is …
Reagents used in the flotation of phosphate ores: …
Reagents used in the flotation of phosphate ores: A critical review. DOI: 10.1016/S0892-6875 (03)00131-6. Authors: H. Sis. Inonu …
A Simulation Study of Expert Control System for A …
According to these simulation results the air flowrate seems to be the most important manipulated variable to control the phosphate rougher flotation recovery. …