Collectors For Enabling Flotation Of Oxidized Coal

Collectors For Enabling Flotation Of Oxidized Coal

Based on the tests conducted with various commercially available collectors oleic acid was selected as a model collector for oxidized coals. Conventional flotation tests found an increase in combustible recovery of 10 absolute percentage points above the pH improvement using 41

News List

  • Reverse Flotation Description

    Reverse Flotation Description

    Reverse Flotation of Taixi Oxidized Coal Energy amp; Fuels. Improving the flotation performance of coking coal using the reverse-direct flotation process. Energy Sources Part A Recovery Utilization and Environmental Effects 2018 40 23 2886-2894. DOI 10.108015567036.2018. Get Price

    Read Moremore
  • The Effect Of Particle Size On Coal Flotation Kinetics A

    The Effect Of Particle Size On Coal Flotation Kinetics A

    Coal flotation is a complex multiphase process governed by different sub-processes and interphase interactions. The coal cleaning efficiency by flotation is largely affected by many different physical and chemical factors that can be roughly classified into three main group coal feed properties pulp chemical and rheological properties and machine and operational properties.

    Read Moremore
  • Assessing The Wettability And Degree Of Oxidation Of Coal

    Assessing The Wettability And Degree Of Oxidation Of Coal

    Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 both PDF and HTML across all institutions and individuals.

    Read Moremore
  • Xiahui Guis Lab  China University Of Mining And Technology

    Xiahui Guis Lab China University Of Mining And Technology

    The characteristics of high-temperature coal tar HTCT its performance as a flotation collector and the interaction mechanism between HTCT and oxidized coal were analyzed by gas chromatography .

    Read Moremore
  • Pdf An Improved Class Of Universal Collectors For The

    Pdf An Improved Class Of Universal Collectors For The

    The flotation results for both coals indicate that the main role of the polar group of the THF collectors is interaction with polar sites on the coal surface and this interaction may be enhanced if the surface of the coal contains numerous oxygenated groups as in the case of Illinois No. 6 coal or if the coal

    Read Moremore
  • Dr Xumeng Chen

    Dr Xumeng Chen

    The effect of saline water on the critical degree of coal surface oxidation for coal flotation. Chang Ziyong Chen Xumeng and Peng Yongjun 2018. The effect of saline water on the critical degree of coal surface oxidation for coal flotation. Minerals Engineering 119 222-227. doi 10.1016j.mineng.2018.01.020

    Read Moremore
  • A Novel Flotation Scheme Selective Flotation Of Tungsten

    A Novel Flotation Scheme Selective Flotation Of Tungsten

    Apr 20 2017 The similar floatabilities of calcium minerals and the huge difference between scheelite and wolframite have resulted in difficulties during their separation by flotation in Shizhuyuan Mine. In this study novel collectors lead complexes of benzohydroxamic acid Pb–BHA were introduced to modify the surface properties of scheelite and wolframite thereby effectively and selectively .

    Read Moremore
  • Flotation Of Long Flame Coal Pretreated

    Flotation Of Long Flame Coal Pretreated

    flotation of fine long flame coal. The flotation recovery of long flame coal could be increased when long flame coal was either pretreated or conditioned with Tween 60 in a flotation cell for a period before the addition of collector. Fourier Transform Infrared FTIR technique was used to indicate surface properties of long flame coal.

    Read Moremore
  • Collector Used For Flotation

    Collector Used For Flotation

    A new collector used for flotation of oxide minerals - ScienceDirect. A surfactant containing a mixed aliphatic structure with a hydrocarbon chain and a diamine group has proven to be collector for the flotation of quartz calam.

    Read Moremore
  • Algal Lipids As Biocollector For Recovery Of Coal From

    Algal Lipids As Biocollector For Recovery Of Coal From

    Raw algal lipids RALs and their derivatives fatty acid methyl esters; FAMEs were investigated as biocollectors for the recovery of coal from ash-rich fine coal waste by froth flotation. Testing was done on fine coal discards from two South African sites—a high ash 50 high sulphur 5.7 sample and a lower ash 26 low sulphur 0.91 sample.

    Read Moremore
  • The Effect Of Hydrothermal Treatment On Structure And

    The Effect Of Hydrothermal Treatment On Structure And

    The most common industrial coal flotation collector is fuel oil but the addn. of oxygenated functional groups to the collector mol. markedly enhances the flotation of lower rank and oxidized coals. This paper summarizes the results of detailed study of the flotation response of two high-sulfur coals Illinois No. 6 coal and Pittsburgh No. 8 .

    Read Moremore
  • Sonic Enhancement Of Physical And Chemical Cleaning Of Coal

    Sonic Enhancement Of Physical And Chemical Cleaning Of Coal

    The ash content of the undersize material varied between 24.2 and 31.2 by weight showing no systematic decrease as the sonication time increased. Laboratory-scale flotation tests using a Hallimond tube were performed to study the effects of coal oxidation and sonic pretreatment of oxidized coals on the surface-controlled cleaning of coal.

    Read Moremore
  • Us2423022a

    Us2423022a

    US2423022A US530370A US53037044A US2423022A US 2423022 A US2423022 A US 2423022A US 530370 A US530370 A US 530370A US 53037044 A US53037044 A US 53037044A US 2423022 A US2423022 A US 2423022A Authority US United States Prior art keywords ore ton iron silica flotation Prior art date 1944-04-10 Legal status The legal status is an assumption and is not a legal conclusion.

    Read Moremore
  • Pdf A Review On Electrochemical Behavior Of Pyrite In

    Pdf A Review On Electrochemical Behavior Of Pyrite In

    Collector adsorption on non-activated surfaceThe general proposed mechanism for hydrophobisation of the pyrite surface in the presence of xanthate collectors is the oxidation of xanthates to hydrophobic dixanthogens and their adsorption on the surface 173174175176177178 according to Reaction 19 179180.2X X 2 2e 19 .

    Read Moremore
  • Coal Flotation Chemistry

    Coal Flotation Chemistry

    Nov 18 2016 The collector coats and enhances the hydrophobic coal surfaces enabling the attachment of bubbles and allows them to float in the flotation cell. Jowett 1956 noted that the presence of slimes effectively reduces the contact angle to zero with little or no subsequent flotation.

    Read Moremore

More News