coal flotation reflotation

  • (PDF) Reflotation of Coal Flotation Tailings using Foam ...

    Reflotation of Coal Flotation Tailings using Foam Separation / Reflotace Černouhelných Flotačních Hlušin Pomocí Pěnové Separace March 2011 DOI: 10.2478/gse-2014-0019

  • Reflotation of Coal Flotation Tailings Using Foam

    2017-11-29 · REFLOTATION OF COAL FLOTATION TAILINGS USING FOAM SEPARATION REFLOTACE ČERNOUHELNÝCH FLOTAČNÍCH HLUŠIN POMOCÍ PĚNOVÉ SEPARACE Hana JUŘICOVÁ1, František TICHÁNEK2 1 Ing., Institute of Mining Engineering and Safety Faculty of Mining and Geology, VSB-TU Ostrava, 17. listopadu 15, 708 33 Ostrava - Poruba, tel. (+420)

  • Flotation circuits for poorly floating coals - ScienceDirect

    1979-2-1 · INTRODUCTION Coal flotation circuits, up to the present time, have generally employed a single-stage reagent addition within, or prior to, a bank of flotation cells. However, there now appears to be a case for considering alternative flota- tion circuits, particularly as the need to treat poorly floating coals increases as a result of ...

  • An evaluation of the flotation response of coals ...

    1989-12-1 · An evaluation of the flotation response of coals. Int. J. Miner. Process., 27: 243-262. The general criteria which must be satisfied by any procedure intended to characterise the fundamental response of a coal to flotation are reviewed. Of the procedures currently advocated, only two, release analysis and the "tree" procedure, satisfy all these ...

  • Process for the separation of coal particles from fly ash ...

    In order to obtain a reasonable amount of carbonaceous froth for reflotation, the first flotation in these experiments was carried out as two flotations in parallel, from which the flotated froth containing the coal fraction was united for reflotation together. These experiments are denoted B

  • Reflotation of Coal Slurries from OKD company, Mine Lazy ...

    The goal of the work is a verification of selective flotation on the black coal slurries sampled from slurry ponds of Mine Lazy, OKD company. Reflotation was realized with 6 collectors: Flotakol NX, Flotalex Ekofol 440, Montanol, MP 125 and AF 2. The technology of main flotation was applied.

  • Extending the upper particle size limit for coal flotation ...

    Request PDF | Extending the upper particle size limit for coal flotation | Novel flotation reagents were developed to improve the flotation of coarse particles. Laboratory tests conducted on an ...

  • Effects of ultrafine desliming on coal flotation circuits ...

    Flotation is regarded as the best available method of upgrading minerals and coal fines. However, its efficiency deteriorates rapidly with decreasing particle size. Further, ultrafine concentrates ...

  • A novel coal tar-based collector for effective flotation ...

    Flotation of low-rank coal is a major challenge for clean utilization of coal resources and environmental protection in the world. Common oily collectors

  • Flotation tree analysis — reexamined - ScienceDirect

    1998-10-1 · Residence flotation times in the flotation cell for both feeds were adjusted for optimum separation (consider Fig. 5 Fig. 6). For the easy separation, the flotation probabilities for the coal and gangue floating are respectively 0.8 and 0.2 ( Fig. 6 ), while for the difficult feed, the flotation probabilities for the coal and gangue are ...

  • CiteSeerX — 9 REFLOTATION OF COAL FLOTATION

    CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Froth separation is one of the new methods of flotation process in mineral treatment. This method allows a substantial increase in the size upper limit of separated grains. The contribution deals with the verification of the possibility of using the froth separation for retreatment of flotation tailings.

  • Re-flotation of black coal slurries from settling ... - CORE

    The possibility of re-flotation of black-coal slurries from slurry ponds of Mine Frantiek, OKD, a.s was tested and is presented in the paper. Two types of collectors, namely Montanol and Flotacol NX, and bioflocculants such as been yeast were used and bioflocculants as is beer yeast to the quality of flotation concentrates was observed The ...

  • Reflotation of Coal Slurries from OKD company, Mine Lazy ...

    The goal of the work is a verification of selective flotation on the black coal slurries sampled from slurry ponds of Mine Lazy, OKD company. Reflotation was realized with 6 collectors: Flotakol NX, Flotalex Ekofol 440, Montanol, MP 125 and AF 2. The technology of main flotation was applied.

  • separation of coal froth flotation - miskon.pl

    Reflotation of Coal Flotation Tailings Using Foam Separation. Key words: flotation, coal, froth separation 1 INTRODUCTION Black coal is an important raw material not only for the power engineering, but also for the me

  • Flotation characteristics of Shenfu coal macerals ...

    The flotation characteristics of Shenfu coal macerals was researched. Taking flotation recovery and enrichment of macerals as the evaluation objects, the influence of the agent dosage, pulp ...

  • A novel coal tar-based collector for effective flotation ...

    Flotation of low-rank coal is a major challenge for clean utilization of coal resources and environmental protection in the world. Common oily collectors

  • Flotation of copper sulphides assisted by high intensity ...

    2010-12-1 · These circuits (staged flotation) were two-stage reagent addition, reflotation of classified tailings and split feed flotation. The reflotation of classified tailings circuits not only gave the best metallurgical performance, it also was the least affected by pulp density variations and imperfect size classification: Firth et al. (1978); Tsai ...

  • Extending the upper particle size limit for coal flotation ...

    Request PDF | Extending the upper particle size limit for coal flotation | Novel flotation reagents were developed to improve the flotation of coarse particles. Laboratory tests conducted on an ...

  • Froth Flotation Principles

    2017-2-26 · Pulp and froth handling is somewhat of a problem, particularly in circuits with multi-stage cleanings by reflotation. The “Sub-A” Flotation is used almost exclusively in the coal flotation field due to its exclusive features in

  • Sugar Reflotation: An Alternative Method for Sorting ...

    Sugar Reflotation: An Alternative Method for Sorting Flotation-derived Heavy Fraction Samples Tristram R. Kidder Tulane University New Orleans, LA Flotation systems cannot always achieve 100% separation of carbonized plant remains from archaeological samples. When soils are especially clay-rich or moist, the effectiveness offlotation decreases.

  • Sugar Reflotation: An Alternative Method for Sorting ...

    Sugar Reflotation: An Alternative Method for Sorting Flotation-derived Heavy Fraction Samples Tristram R. Kidder Tulane University New Orleans, LA Flotation systems cannot always achieve 100% separation of carbonized plant remains from archaeological samples. When soils are especially clay-rich or moist, the effectiveness offlotation decreases.

  • REFLOTATION English Definition and Meaning | Lexico

    English dictionary definition of REFLOTATION along with additional meanings, example sentences, and different ways to say.

  • Reflotace uhelných kalů z OKD,a.s., D l Lazy

    2017-9-13 · Reflotation of Coal Slurries from OKD company, Mine Lazy The goal of the work is a verification of selective flotation on the black coal slurries sampled from slurry ponds of Mine Lazy, OKD company. Reflotation was realized with 6 collectors: Flotakol NX

  • Reflotation of Coal Flotation Tailings using Foam ...

    Reflotation of Coal Flotation Tailings using Foam Separation / Reflotace Černouhelných Flotačních Hlušin Pomocí Pěnové Separace . By Juřicová Hana and Tichánek František. ... coal, froth separation, Geology ...

  • Optimalisation of Flotation Collector for Reflotation ...

    Optimalisation of Flotation Collector for Reflotation Bitumenous Slurries . ... In conclusion both flotation collectors are compared and coking characteristics are evaluated samlpes bitumenous slurries from wasteponds.Prezenční546 - Institut environmentálního inženýrstvívýborn ...

  • Froth Flotation Principles

    2017-2-26 · Pulp and froth handling is somewhat of a problem, particularly in circuits with multi-stage cleanings by reflotation. The “Sub-A” Flotation is used almost exclusively in the coal flotation field due to its exclusive features in

  • Design of Flotation Cells and Circuits

    2019-6-19 · Design Problems for Larger Cells. Circuit Design and Operation. After almost 60 years of application in this country froth flotation is still by far the most important process for concentrating metallic ores as well as a number of

  • separation of coal froth flotation - miskon.pl

    Reflotation of Coal Flotation Tailings Using Foam Separation. Key words: flotation, coal, froth separation 1 INTRODUCTION Black coal is an important raw material not only for the power engineering, but also for the me

  • Ore and coal beneficiation method - ABADI; KHODABANDEH

    I claim: 1. In a method for the separation of iron pyrite from a pulverized mineral ore comprising iron pyrites as a first constituent and a second constitutent selected from the group consisting of coal and non-ferrous metal ores by air froth flotation of an aqueous pulp of said pulverized mineral ore, the improvement which comprises incorporating in said pulp from about 0.02 to about 1

  • US4441993A - Flotation process - Google Patents

    A process for recovering metallic values by putting the values into solution and separating undesired mineral matter from the solution using countercurrent flotation is provided. The process involves leaching metallic values from host rock, conditioning the resultant ore pulp with the required reagents to achieve selective flotation of mineral matter in the metallic values solution ...