Profile kinc mineral technologies private limited, vadodara. Through extensive jar testing an optimal time can be found. Polymerassisted flocculation dewatering of mineral processing tailings mpt is crucial for its environmental disposal. Mineral processing tailings mpt are a major source of contamination to the environment, especially in global arid and semiarid regions valentinvargas et al. The formation of flocs aids in improved settling rates, better overhead clarity andor faster filtration rates. An alternative to using a clarification process based on coagulation and flocculation for treating waters containing little mineral turbidity, is use the sirofloc process. Separation of water from fine tailings in the minerals or petroleum industries has been a long standing and well documented challenge. Temporal microscopy images six images for each sample at a time have been collected during. Simulation starts with the definition of the flowsheet which is drawn initially on the monitor using a specialized graphics editor. Modeling and simulation of mineral processing plants. Development of novel tools for flocculation studies.
Wills mineral processing technology an introduction to. Many charged species such as suspended mineral, organics, pathogens, and. Us10372144b2 image processing for improving coagulation. Simulate your whole plant from crushing through to flotation in one flowsheet. In most mineral processing plants, the only equipment used to control tailings flocculation is the thickener, with the only dynamic adjustment available often being the flocculant dosage. High molecularweight polymer flocculation treatment of waste water and sludge from mineral processing plants 1 ajibola o. Flocculant dilution effects on flocculation in mineral processing.
Also, the ease with which the particulate matter can be processed in this form is. Two main types of material balances are commonly made. Flocculation systems aggregates and minerals marketplace. This industry standard reference provides practicing engineers and students of mineral processing, metallurgy, and mining with practical information on all the common. There are three main methods for achieving aggregation of very small or colloidal. Download it once and read it on your kindle device, pc, phones or tablets. Finely divided magnetite prepared by washing with a solution of sodium hydroxide at high ph is applied to the raw water together with a small concentration of a cationic. A flocculation test procedure is used to determine how much flocculants need be added to solids in suspension slurry or pulp to cause the individual particles to collect in the form of flocs. The action of dispersing agents in mineral processing is therefore to a improve flotability of the mineral by preventing slime coating on the mineral particles and b disperse fines or gangue minerals during selective flocculation. This is a practice that can often be highly inefficient, leading to excessive flocculant consumption and negative impacts on underflow properties.
The graphic editor has an extensive array of icons representing all the mineral processing unit operations encountered in practice. Flocculation of highsolids mineral slurries dow global. Use features like bookmarks, note taking and highlighting while reading wills mineral processing technology. Flocculation usually results in changes of size, morphology, and settling velocity of sediment particles and finally changes of bed topography of reservoirs and estuaries. Retention time for flocculation varies greatly but typically is longer than 15 minutes. Us10372144b2 image processing for improving coagulation and. Effective flocculation of fine mineral suspensions using. Structural investigation of tailings flocculation and. On the basis of the traditional mineral processing technology, it introduces x51, a new type sulfide mineral activator, to instead of copper sulfate.
The new edition also contains more detailed discussions of comminution efficiency, classification, modeling, flocculation, reagents. Flotation and flocculation underpin the key material supply chains for technologies that are central to minerals, fuel cells, ceramics, telecommunications, waste removalrecycling processes and many other. Jksimmet is a generalpurpose computer software package for the analysis and simulation of comminution and classification circuits in mineral processing operations, developed from decades of research out of the renowned julius kruttschnitt mineral research centre jkmrc. There are three main methods for achieving aggregation of very small or. Jul 19, 2018 the present invention relates to a method of dewatering an aqueous mineral suspension comprising introducing into the suspension a flocculating system comprising a mixture of polyethylene glycol and polyethylene oxide polymers, in particular a mixture of one or more low molecular mass polyethylene glycol with one or more high molecular mass polyethylene oxide. High molecularweight polymer flocculation treatment of. Most simulation software requires highlevel training to use it. They are inevitable byproducts of the hardrock mining that often in a slurry form with a mixture of fine particles and water. This industry standard reference provides practicing engineers and students of mineral processing, metallurgy, and mining with practical.
Library minerality minerals processing software, training. We deliver software with the plants flow sheet and methods preprogrammed. In some systems where flocculation is dependent upon the ionic charge of the particles a polymer with either a positive or negative charge will aid in the attachment to the solid particles and hence improve efficiency of flocculation. Modeling and simulation of minerals processing with metsmart software.
Minerals free fulltext chemometric optimisation of a. High molecularweight polymer flocculation treatment of waste. It is the first process that most ores undergo after mining in order to provide a more concentrated material for the procedures of extractive metallurgy. For a flotation circuit, material balance calculations define an engineering problem where flow parameters between unit operations are partly known.
All your plants can have the same software standard. Polymer assisted flocculation remains the most commonly utilized tailings treatment method in the mineral processing industry due to the manageable treatment costs, rapid water release, and ease of its application on the industrial scale. Flocculation is a characteristic property of colloidal dispersions. Flocculation is a special phenomenon for fine sediment or silt in reservoirs and estuaries. Coagulationflocculation process is regarded as one of the most important and widely used treatment processes of industrial wastewaters due to its simplicity and effectiveness. Generically, such solidsliquid separation processes are sometimes referred to as clarification processes. Flotation and flocculation deals with cuttingedge research in the science and engineering of two of the worlds key separation processes. Coagulationflocculation process is regarded as one of the most important and widely used treatment processes of industrial wastewaters due to its simplicity and. Mining chemicals market frothers, flocculants, collectors. Sedimentation is one of several methods for application prior to filtration. In mining and mineral processing mine tailings, coal sludge, etc, tencate geotube dewatering technology enables the recovery of valuable materials, provides structural stability, improves water quality, or reduces storage footprint by sometimes 50 to 80%.
Datadriven modelling of the flocculation process on. Among mineral processing techniques selective flocculation technique is known to have outstanding potential of capturing the particles of particular mineral in slurry of mixed mineral system by selective adsorption of water soluble polymers known as flocculants. In a new hydrophobic agglomeration process, recently developed hydrophobic latices are utilized. Increasing environmental awareness coupled with more stringent regulation standards has triggered various industries to challenge themselves in seeking appropriate wastewater treatment technologies. A key element has been to incorporate the flocculation. A flocculation control system that floats particles that attach to nano andor micro bubbles out of a liquid includes at least one sensing system, at least one processing system, and at least one fluid additive control system.
Comparative study of the mineral composition and its. This is the reason why we provide userfriendly customizable software solutions. Modeling of flocculation and sedimentation using population. Flocculation, in the field of chemistry, is a process in which colloids come out of suspension in the form of floc or flake, either spontaneously or due to the addition of a clarifying agent.
Coagulationflocculation sswm find tools for sustainable. Coagulationflocculation is a chemical water treatment technique typically applied prior to sedimentation and filtration e. Flocculation the artificial creation of solid aggre. Oilmineral flocculation and settling velocity in saline. In coal preparation plant circuits, fine coal particles are aggregated either by oil agglomeration or by flocculation. The at least one sensing system is configured to reproduce one or more nanobubbles with one or more particles suspended in a fluid. Flocculant dilution effects on flocculation in mineral.
This has required considerable code development and new numerical approaches. International trade commission 20012006 international trade analyst, office of industries, natural resources and metals division, washington, dc. In process measurement of flocculation for oil sands separations. In mineral processing practice, flocculation is largely established as an engineering technique of waste water treatment and the study of parameters increasing the settling velocity of particles is still of great importance to improve the process. Jktech is synonymous in the global minerals industry with powerful simulation software applications for the optimisation and design of mineral processing plants as well as blasting operations. Flocculation flocculation or floculation is a significant process widely utilized in water treatment operations, including purification of drinking water, sewage water treatment, storm water treatment and treatment of various other industrial wastewater streams. Flotation and flocculation from fundamentals to applications. Department of metallurgical engineering waste paper recycling deink flotation many types of paper are subject to a deinking step in order to remove ink from the waste paper in preparation. Mineral processing, art of treating crude ores and mineral products in order to separate the valuable minerals from the waste rock, or gangue. Similar flocculation rate experiments were carried out in this study for three types of mineral particles without the presence of oil, i. Coagulation is a process used to neutralise charges and form a gelatinous mass to trap or bridge particles thus forming a mass large enough to settle or be. To reduce the number of laboratory experiments, this study proposes a novel and hybrid machine learning ml method for the prediction of the flocculation dewatering performance.
Contact information dr claudio schneider office hours. The flocculation process is also affected by ph, salts, alkalinity, turbidity, temperature and degree of mixing. Potential to discharge unadsorbed flocculant detrimental to downstream processes. Flocculation is the key processing step to combine fibers, fillers, and other additives in such a way that it dewaters quickly and can be produced in large quantity. Wills mineral processing technology an introduction to the practical aspects of ore treatment and mineral recovery 8th edition details this book has been the definitive reference for the mineral processing industry for over thirty years. Tencate geotube technology provides costeffective and efficient dewatering and containment in the mining and mineral processing industry. The process of flocculation and sedimentation was simulated based on population balance modeling pbm. The charge of the particles is dependent on a number of factors and is usually ph dependent. An introduction to the practical aspects of ore treatment and mineral recovery has been the definitive reference for the mineral processing industry for over thirty years. The action differs from precipitation in that, prior to flocculation, colloids are merely suspended in a liquid and not actually dissolved in a solution. The purpose of a material balancing is to mathematically examine the known flow parameters to solve for the unknown flow parameters. An introduction to the practical aspects of ore treatment and mineral recovery by barry a.
In the field of extractive metallurgy, mineral processing, also known as ore dressing, is the process of separating commercially valuable minerals from their ores. Flocculation, hydrophobic agglomeration and filtration of. Our flagship software product, jksimmet, has been developed by jktech to encapsulate the results of 40 years of comminution and classification research. The invention is particularly suitable for the treatment of tailings and other waste material resulting from mineral processing, in particular, the processing of oil sands tailings. The process of flocculation and sedimentation was simulated based on population balance modeling pbm and computational fluid. The typical classical sol contained submicroscopic dispersed particles which would pass freely through ordinary filterpaper, and were too small to be resolved by any transmission optical microscope. Fine iron ores most often contain clays, quartz and other minerals as gangue material along with iron minerals. Thickener technology for mineral processing csiropedia.
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