The flotation results have been obtained with 1-butylamine (coal yield: ) and compared with those achieved with a quaternary amine (PDF) Efficient coal concentration using a short-chain amine-type compound as collector reagent: Flotation and optimization studies | Javier Ernesto Vilaso Cadre and Iván Reyes-Domínguez - Academia.eduWeb

Last Updated: 05 Oct 2023. PDF | This work presents the flotation of a sub-bituminous coal using 1-butylamine as a short-chain amine collector. The flotation results have been... | Find, read and ...Web

The effect of three most important reagents for coal flotation namely sodium meta silicate, collector (kerosene) and frother (MIBC) was studied using 2 3 full factorial design. The regression models were developed using factorial experiment data to quantify the effect of sodium meta silicate, collector and frother and to predict grade and recovery …Web

Introduction. Natural gas is the cleanest primary fossil fuel. It produces less CO 2, NO x, SO x, and particulates emissions when burned to produce energy compared to other traditional fossil fuels such as, oil and coal (Washington, 1999).In 2012, it was used and consumed globally to generate electricity by 24% relative to the other energy …Web

Coal is China's largest proven reserves of primary energy and it reliably guarantees the life and economic development of our residents (Gao et al. 2020; Su et al. 2020). ... The simultaneous optimization of multiple parameters was conducted to obtain the optimal operating conditions and the significance order of the parameters.Web

The collector used for the tests is a mixture of 80% isopropyl xanthate and 20% amyl xanthate, while methylisobutylcarbinol (MIBC) is used as frother. After the first addition of reagents, three concentrate samples are pulled out of the cell, and another addition of reagent is made according to the selected distribution strategy.Web

DOI: 10.1016/S0301-7516(03)00034-6 Corpus ID: 97678281; THE EFFECT OF REAGENTS AND REAGENT MIXTURES ON FROTH FLOTATION OF COAL FINES @article{Erol2003THEEO, title={THE EFFECT OF REAGENTS AND REAGENT MIXTURES ON FROTH FLOTATION OF COAL FINES}, author={Murat Erol and …Web

Generally, liquid hydrocarbon reagents are used to alter the coal surface characteristics to be hydrophobic to achieve better flotation (Peng et al., 1996; Dey et al., ... Hence, the studies on the flotation of coal fines to recover clean coal and on the optimization of the flotation variables are the focus in this study.Web

The attainment of the coal slurry ash detector provides the novel method to resolve the problems above. This paper studies how to increase the production capacity and decrease the reagent consumption through the optimization control under the premise of the …Web

Abstract The properties of fine coal slurries at OOO MMK-Ugol and their flotation are studied. To improve the flotation of finely disperse coal slurries, more effective reagent combinations are employed; TPA collection agent and Sinterol flocculant are considered. In the laboratory, optimal flotation conditions are developed for fine coal …Web

Coal fly ash (CFA) is a byproduct of thermal power plant and collected from flue gases by separator. Composition of CFA depends on the type of coal used and it has both crystalline and amorphous character. It is considered to be an environmental pollutant and used in number of areas. CFA is a useful material and widely used in cement …Web

Raw coal contains a large number of microorganisms, generally 104-105cells/ml in coalbed [12,13]. In flotation plants, the usage of circulation water accumulates kinds of inorganic ions and some organic reagents [6,14,15], which provides vital conditions for the growth of microorganisms.Web

The flotation performance efficiency of the flotation reagent AB studied at two different size fractions of the coal sample was found to be better than that of the dual collector-frother reagent ...Web

Vapur et al. reported that the coal ash content was decreased from 33.4% to 17.9% with a combustible recovery of 95%, as the coal flotation parameters optimized for particles size, pulp density, the dosage of reagents and …Web

Design Optimization of Concentrated Solar Power and Waste to Energy Power Plants. For CSP and WTE plants, it is possible to extend the thermodynamic considerations made for coal-fired steam cycles. Their efficiency benefits from regenerators, high superheat temperatures, and high evaporation pressures.Web

This study has prepared a sustainable and efficient ceramsite substrate for phosphorus immobilization in constructed wetlands by adopting coal fly ash (CFA) and waterworks sludge (WS) as the main materials, and oyster shell (OS) as the additive. The optimal parameters for CFA/WS/OS ceramsite preparation were determined as follows: …Web

Abstract and Figures. This paper employs a stochastic and dynamic intermediate storage model to estimate the optimal stockpile levels at both a mine and port for a coal supply chain. The ...Web

The dosage variation optimization studies were carried out extensively and the main outcome of the tests are highlighted here at comparable ranges of yield and ash content of the concentrates. ... the developed single reagent for coal flotation paves the way to a sustainable and environmentally friendly solution to the coal washeries in ...Web

This paper studies how to increase the production capacity and decrease the reagent consumption through the optimization control under the premise of the accepted concentrate ash content. The application of the optimal control of Coal Flotation indicates a high concentrate recovery and a decrease of the reagent consumption to ensure a highly ...Web

Naik, Reddy, and Misra (2005) studied the effect of three most important reagents for coal flotation, namely sodium meta silicate (regulator), kerosene (collector) and methyl isobutyl carbinol ...Web

Hence, two-stage reagent distribution, with extra amount of reagent in the second stage, was studied in the laboratory. Results of laboratory-scale studies showed an improvement in yield of clean coal of 10–12% with a marginal increase of …Web

Fine coal (− 0.5 mm) is treated in a flotation circuit at Bhelatand washery of Tata Steel. The average ash content of the flotation feed, the fine clean coal, and the tailings of the flotation circuit are 18.5%, 12.5%, and 36%, respectively. The yield of clean coal from the flotation circuit is about 72%. However, the performance of the circuit in terms of clean coal yield …Web

1. Introduction. CFA typically contains 26–31% alumina whereas Bauxite, a naturally occurring alumina ore, contains about 30–60% alumina (Authier-Martin et al., 2001) and is the main source of aluminium metal in the world.CFA is formed when pulverized coal is combusted in power stations to heat boilers, which in turn drive generators to produce …Web

Reagent addition is an important operation in the froth flotation process. In most plants, it is manually regulated according to the operator's experience, by observing the surface features of the froth. ... N. Optimization of the coal flotation procedure using the Plackett–Burman design methodology and kinetic analysis. Fuel Process ...Web

Abstract and Figures. A coal preparation plant typically operates with multiple cleaning circuits to clean individual size fractions of run-of-mine coal. Coal preparation plants are traditionally ...Web

Interpretation of interaction effects and optimization of reagent dosages for fine coal flotation - ScienceDirect Article preview Abstract Introduction Section snippets …Web

Based on petrographic studies and percentages of reactive macerals, the optimal reagents were found to be gasoline (as collector) and MIBC (as frother). KEYWORDS: Coal …Web