## Lecture 11: Material balance in mineral processing

Materials balance Water balance (dilution ratio) Illustration Conclusion References Key words: Material balance, ball mill, hydro cyclone, flotation. Preamble An important aspect of any mineral processing study is an analysis of how material is distributed whenever streams split and combine. This knowledge is necessary when a flow sheet is ...

More## material balance equation in mineral processing

The size reduction of solids and liberation of useful components is one of the most important activity in mineral processing. 1.5. Minerals Mineral can be defined as natural material featuringOn the basis of the force balance, appropriate equations describing physics of the process can be derived.

More## How to do Material and Water Balance to Develop Mineral

The concept required to develop material and water balance in mineral processing is based on the formula: input -output= accumulation. That means in a unit process, the amount of material entering will be accumulated until it starts to be discharged. In continuous systems at steady states, there will be no accumulation, then . inputs = outputs. And that is the basic required

More## material balance equation in mineral processing

In mineral processing, the flow is the pulp which is a suspension of particles in water. .. Calculating the solid specific gravity by using the equation (1). Contact US Lecture 11: Material balance in mineral processing Contents nptel. In this lecture basics of material balance in mineral processing is discussed. . In equation 17, ρ is density ...

More## Mod-01 Lec-11 Materials Balance in Mineral Processing and Faq -

04/04/2012 Materials and Energy Balance in Metallurgical Processes by Prof. S. C. Koria, Department of Materials Science Engineering, IIT Kanpur For more details on N...

More## Chapter 4 MATERIAL BALANCES AND APPLICATIONS

A material balance is an accounting for material. Thus, material balances are often compared to the balancing of current accounts. They are used in industry to calculate mass flow rates of different streams entering or leaving chemical or physical processes. 4.2. The General Balance Equation Suppose propane is a component of both the input and output streams of a

More## How to do Material and Water Balance to Develop Mineral ...

Material balance in the mineral processing industry is required for two primary purposes; One is to take stock of inputs and outputs and to identify the losses. Second, develop the flowsheet showing the flow of material (the amount of material flowing from one unit to another). “In several mineral processing operations, we got two products from a single feed; thus the plant output consists ...

More## material balance equation in mineral processing

In mineral processing, the flow is the pulp which is a suspension of particles in water. .. Calculating the solid specific gravity by using the equation (1). Contact US Lecture 11: Material balance in mineral processing Contents nptel. In this lecture basics of material balance in mineral processing is discussed. . In equation 17, ρ is density ...

More## Mod-01 Lec-11 Materials Balance in Mineral Processing and ...

04/04/2012 Materials and Energy Balance in Metallurgical Processes by Prof. S. C. Koria, Department of Materials Science Engineering, IIT Kanpur For more details on N...

More## Mass balance calculations around mineral processing units ...

01/08/1987 It is now well established that the data collected in mineral processing plants can be significantly improved by appropriate mathematical treatment based on material balance calculation (Hodouin et al., 1984). The usual least-squares procedures used in balancing the data act as filters for the estimation of the steady state values of various parameters under consideration. A number of

More## Mass balance calculations around mineral processing units ...

This paper proposes an extension to an already available mass balance algorithm for mineral processing data. A typical set of data which can be processed by the proposed method contains flowrates measurement, particle-size analyses, global chemical analyses and, simultaneously, chemical analyses within particle-size classes. The method which is developed is based on a suboptimal

More## Chapter 4 MATERIAL BALANCES AND APPLICATIONS

A material balance is an accounting for material. Thus, material balances are often compared to the balancing of current accounts. They are used in industry to calculate mass flow rates of different streams entering or leaving chemical or physical processes. 4.2. The General Balance Equation Suppose propane is a component of both the input and output streams of a continuous process unit shown ...

More## Reliability of material balance calculations a sensitivity ...

01/01/1989 Material balance packages are used to estimate unmeasured variables and upgrade the measured ones in mineral processing plants. The reliability of such estimates strongly depends on the data structure. Their variance-covariance matrix is here derived to evaluate the reliability of estimated flowrates, dilutions, particle size distributions and chemical assays. A relationship is shown to relate ...

More## Lecture 12: Exercise on mineral processing Contents

Water balance on the cyclone gives M. F. L1336kghr⁄ Ans. ermine unknown Figure 12.2Flow sheet for materials flow Solution: Apply material balance and get the answer concentrate 123 thr⁄ and tailing 877thr⁄ . Problem 4: Analyze the following circuit and det s Flow rate of. Problem5: Do yourself

More## Water and Energy Balances in Mineral Processing Plants

Mining Mineral Processing Metallurgical Products Process Management Workflow Energy Reagents Environmental How to identify risks and plant availability constraints? How to validate the data for business decisions? How to track variable costs by product, by area, by recipe? Assets PI Value Drivers in Mining and Metals

More## NPTEL :: Metallurgy and Material Science - Materials and ...

Material balance in mineral processing; Exercises in mineral processing; Calcination; Pyro metallurgical extraction (Roasting) Thermodynamics of roasting; Material balance in roasting; Basics of heat balance in roasting; Material and heat balance in roasting of chalcopyrite ore ; Roasting of zinc and lead concentrate; Smelting ; Unit Processes ...

More## Mod-01 Lec-11 Materials Balance in Mineral Processing and ...

04/04/2012 Materials and Energy Balance in Metallurgical Processes by Prof. S. C. Koria, Department of Materials Science Engineering, IIT Kanpur For more details on N...

More## 3.7 Example Mass Balance Calculations - Wills' Mineral ...

(3.36) In the above equation, i stands for an assayed metal and j for a process unit. The calculation of these best estimates requires the calculation of the derivatives of - Selection from Wills' Mineral Processing Technology, 8th Edition [Book]

More## Advances in mineral processing material balances: Canadian ...

02/11/1972 Because calculation of mineral processing material balances has changed little over the past 50 years, valuable data are being wasted since they are not used in the balance

More## Chapter 4 – Material Balances Note

CBE2124, Levicky 3 Differential balances: The terms in a differential material balance are expressed as rates; that is, rate of input (e.g. moles/s, kg/s), rate of generation, rate of output, and rate of accumulation. Differential balances are applied to continuous processes. Integral balances: These usually apply to batch processes.. The terms in a batch mater

More## (PDF) Lecture 12: Exercise on mineral processing Contents ...

Lecture 12: Exercise on mineral processing Contents. Download. Lecture 12: Exercise on mineral processing Contents . Lauren Jauregui. Apply material balance and get the answer concentrate 123 t hr ⁄ and tailing 877 t hr ⁄ . Problem 4:Analyze the following circuit and det s Flow rate of Problem5: Do yourselfIn a hydro cyclone a slurry ing 30% soli contain d is fed for separation of course ...

More## Materials and Energy balance in Metallurgical ... - NPTEL

Lecture-11_Materials Balance in Mineral Processing and Faq: PDF unavailable: 12: Lecture-12_ Exercises in Mineral Processing: PDF unavailable: 13: Lecture-13_Calcination Concepts Exercises: PDF unavailable: 14: Lecture-14_Pyromet ExtractionUnit Processes: PDF unavailable: 15: Lecture-15_Predominance Area Diagram: PDF unavailable : 16: Lecture-16_Material Balance in

More## NPTEL :: Metallurgy and Material Science - Materials and ...

Material balance in mineral processing; Exercises in mineral processing; Calcination; Pyro metallurgical extraction (Roasting) Thermodynamics of roasting; Material balance in roasting; Basics of heat balance in roasting; Material and heat balance in roasting of chalcopyrite ore ; Roasting of zinc and lead concentrate; Smelting ; Unit Processes ...

More## Basic Principles and Calculations in Chemical Engineering

In such process there is no accumulation in the system, and the equation of material balance can be written as: Figure 5: Steady state system b- Unsteady state process: For an unsteady state process, not all of the operating conditions in the process (e.g., temperature, pressure, compositions, flow rate, etc.) remain constant with time, and/or the flows in and out of the system can vary ...

More## Water and Energy Balances in Mineral Processing Plants

Mining Mineral Processing Metallurgical Products Process Management Workflow Energy Reagents Environmental How to identify risks and plant availability constraints? How to validate the data for business decisions? How to track variable costs by product, by area, by recipe? Assets PI Value Drivers in Mining and Metals

More## Step by step solutions - Material Balances

In setting up a material balance for a process a series of equations can be written for the various individual components and for the process as a whole. In some cases where groups of materials maintain constant ratios, then the equations can include such groups rather than their individual constituents. For example in drying vegetables the carbohydrates, minerals, proteins etc., can be ...

More## Mod-01 Lec-11 Materials Balance in Mineral Processing and ...

## XII. MATERIAL BALANCE, PLANT EVALUATION AND MODELING

mass balance techniques. Modeling Concepts: The operations in mineral processing can be broadly divided into three categories, namely, transformation, separation and de-watering. The units that change the characteristics of the material are known as transformation units. For example, the crushing and grinding operations change the

More## 3.7 Example Mass Balance Calculations - Wills' Mineral ...

(3.36) In the above equation, i stands for an assayed metal and j for a process unit. The calculation of these best estimates requires the calculation of the derivatives of - Selection from Wills' Mineral Processing Technology, 8th Edition [Book]

More## MATERIAL BALANCE AND STREAM SAMPLING ERRORS: Mineral ...

31/08/2006 The material balance technique is used to upgrade the measured variables. The sampling errors are evaluated before and after material balance. In one case, the covariance terms between the components in a stream and between the streams in the flotation circuit are included. In the other case, these terms are not included. This article proves that by including the covariance terms in the ...

More## Chapter 4 – Material Balances Note

CBE2124, Levicky 3 Differential balances: The terms in a differential material balance are expressed as rates; that is, rate of input (e.g. moles/s, kg/s), rate of generation, rate of output, and rate of accumulation. Differential balances are applied to continuous processes. Integral balances: These usually apply to batch processes.. The terms in a batch mater

More## Advances in mineral processing material balances: Canadian ...

02/11/1972 Because calculation of mineral processing material balances has changed little over the past 50 years, valuable data are being wasted since they are not used in the balance

More## Lecture 12: Exercise on mineral processing Contents

Water balance on the cyclone gives M. F. L1336kghr⁄ Ans. ermine unknown Figure 12.2Flow sheet for materials flow Solution: Apply material balance and get the answer concentrate 123 thr⁄ and tailing 877thr⁄ . Problem 4: Analyze the following circuit and det s Flow rate of. Problem5: Do yourself

More## Materials and Energy balance in Metallurgical ... - NPTEL

Lecture-11_Materials Balance in Mineral Processing and Faq: PDF unavailable: 12: Lecture-12_ Exercises in Mineral Processing: PDF unavailable: 13: Lecture-13_Calcination Concepts Exercises: PDF unavailable: 14: Lecture-14_Pyromet ExtractionUnit Processes: PDF unavailable: 15: Lecture-15_Predominance Area Diagram: PDF unavailable : 16: Lecture-16_Material Balance in

More## Step by step solutions - Material Balances

In setting up a material balance for a process a series of equations can be written for the various individual components and for the process as a whole. In some cases where groups of materials maintain constant ratios, then the equations can include such groups rather than their individual constituents. For example in drying vegetables the carbohydrates, minerals, proteins etc., can be ...

More## Process Observers and Data Reconciliation Using Mass and ...

Wiegel RL (1972) Advances in mineral processing material balances. Canadian Metallurical Quarterly 11(2) ... (1996) Real-time reconciliation of mineral processing plant data using bilinear material balance equations coupled to empirical dynamic models. International Journal of Mineral Processing 48:245–264 CrossRef Google Scholar [94] Hlavacek V (1977) Analysis of a complex plant steady ...

More