• 11.27 Feldspar Processing

    Flotation experiments performed on a quartz-feldspar mixture demonstrate that quartz can be floated selectively from feldspars in diluted solutions of hydrofluoric acid (HF) simply by the aid of a frother. High grades and good recoveries were obtained for both quartz and feldspars. A feldspar concentrate of 99.9% at a recovery of 95.6% was ...

  • (PDF) Selective Flotation of Quartz and Feldspar Using Non ...

    flotation process feldspar - YouTubeMay 31, 2018 To efficiently separate feldspar and mica from quartz, we have ...flotation separation of feldspar - Continue ... Free Consulting Online. J40 Jaw Crusher. J45R Jaw Crusher. J50 Jaw Crusher. I44 Impact Crusher. I44R Impact Crusher. I54 Impact Crusher. C38 Cone Crusher.

  • BRITISH GEOLOGICAL SURVEY Mineralogy Petrology Group ...

    Review of flotation of feldspar. ... a HF-free flotation process using a mixture of the cationic and anionic collectors for the separation of feldspar from sand was described by Katayanagi [4] and ...

  • Differential Flotation of Some Egyptian Feldspars for ...

    a method for HF-free froth flotation of feldspar was evaluated. This work was carried out as part of the ongoing 'Maintenance of capability in Mineral Sciences' project, 75CB 1.2. Background Since the 1920s, froth flotation has been widely used in the processing of minerals.

  • Minerals | Free Full-Text | Developing Effective ...

    11.27 Feldspar Processing 11.27.1 General1 Feldspar consists essentially of aluminum silicates combined with varying percentages of potassium, sodium, and calcium, and it is the most abundant mineral of the igneous rocks. The two types of feldspar are soda feldspar (7 percent or higher Na O) and potash feldspar (8 percent or higher K O).

  • SELECTIVE SEPARATION OF Na- AND K-FELDSPAR FROM …

    1. Introduction. Froth flotation is the selected method for the separation of quartz and feldspar. In the conventional process, feldspar is floated from quartz by using hydrofluoric acid (HF) as activator for the feldspar and a cationic collector (amine) at pH 2–3 (O’Meara, 1939). (1979) reported that HF creates a large difference in the minerals’ zeta potentials as the zeta ...

  • Review of flotation of feldspar | Request PDF

    The trading flotation separation method of quartz-feldspar is the HF acid method. consider of the environment protection, most mineral workers prefer to free-fluorine acid method. Flotation separation of potash feldspar and albite The separation of potash feldspar (orthoclase and microcline) and albite is a challenging issue because they are ...

  • Concentration of K-feldspar from a pegmatitic feldspar ore ...

    The micro-flotation tests revealed that there was little difference in the flotation of feldspar and quartz at pH 2, using H2SO4 as pH regulator. After HF pretreatment, the floatability of feldspar significantly increased while the floatability of quartz showed no change.

  • floatation froth floatation separation quartz from feldspar

    The problem in feldspar flotation is to recover slime free granular products, all minus 20 mesh, usually with not over 10% finer than 200 mesh. Flotation under these conditions is critical and pulps are abrasive as well as corrosive. Action of the feldspar pulp must be counteracted by proper selection of equipment to withstand these conditions.

  • Selective Flotation Separation of Feldspar in Non Fluoride ...

    The bulk of amine collectors used in current feldspar operations are applied as the water-soluble acetates of the free-base amines. The Non-Hf Feldspar Flotation Method In recent years, several researchers have investigated methods for replacing HF in feldspar-quartz flotation.

  • Flotation of quartz from quartz-feldspar mixtures by the ...

    The second method is fluorine-free flotation, which could solve the problem caused by environmental pollution of HF flotation. Applying aliphatic amines and petroleum sulfonate mixing collector in strong acidic environment using H 2 SO 4 or HCl as pH regulator, selective flotation separation of feldspar from quartz [11,12,13] could be achieved ...

  • Feldspar Beneficiation Process Magnetic & Flotation ...

    The feldspar minerals and quartz were separated from each other by flotation of feldspar minerals and depression of quartz minerals. Both feldspar and quartz in amine flotation and in the absence of HF need not be floated at pH less than 4. However, in the presence of HF feldspar is floated at pH 2–3 while quartz does not float.

  • 1. Introduction

    US2297689A US328083A US32808340A US2297689A US 2297689 A US2297689 A US 2297689A US 328083 A US328083 A US 328083A US 32808340 A US32808340 A US 32808340A US 2297689 A US2297689 A US 2297689A Authority US United States Prior art keywords feldspar separation quartz acid flotation Prior art date 1940-04-05 Legal status (The legal status is an assumption and is not a …

  • Feldspar Flotation Distribution

    Hf Free Flotation Of Feldspar. separation of ... separate feldspar and quartz without the use of ... Get Price Selective Flotation of Quartz and Feldspar Using …

  • Feldspar Beneficiation & Flotation Process

    ABSTRACT In order to develop the HF-free flotation reagent system, the main objective of this investigation was to study the possibility of separation of quartz from feldspar using non-ionic surfactants as the collector. The non-ionic surfactants

  • Beneficiation of a feldspar ore for application in the ...

    Concentration of K-feldspar from a pegmatitic feldspar ore by flotation Article in International Journal of Mineral Processing 81(2):122-132 · November 2006 with 241 Reads How we measure 'reads'

  • US2297689A - Separation of feldspar from quartz - Google ...

    However, a HF-free flotation process using a mixture of the cationic and anionic collectors for the separation of feldspar from sand was described by Katayanagi [4] and the process was reported to be applied in industrial practice [2] [4]. In an aqueous medium the feldspar surface shows, after a short time, changes which have a neg-

  • flotation of feldspar and quartz without hf iron oxid of ...

    Selective separation of Na- and K-feldspar from weathered granites by flotation in HF medium Ceramics – Silikáty 54 (1) 60-64 (2010) 61 multivalent salts, a required selectivity in flotation is achieved [1]. Sodium ions depress Na-feldspar during the flotation of alkali feldspar at natural pH and in HF

  • Selective Flotation of Quartz and Feldspar Using Non-Ionic ...

    In order to develop the HF-free flotation reagent system, the main objective of this investigation was to study the possibility of separation of quartz from feldspar using non-ionic surfactants as the collector. The non-ionic surfactants used were polyoxyethyl cethyl ether (PECE) and polyethylene glycol monocethyl ether (PGME). The flotation behaviour of quartz and microcline with...

  • EP2343131A1 - Flotation process for recovering feldspar ...

    Flotation with HF, provided a feldspar recovery of 45–46% with a concentrate assaying 17.6% Al2O3. The use of H2SO4, gave a recovery of 35–36% of feldspar concentrate, assaying 16.1% Al2O3. However, economic and environmental advantages of using sulphuric acid