starch for mineral flotation

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  • Minerals | Special Issue : Flotation Chemistry

    Minerals, an international, peer-reviewed Open Access journal Dear Colleagues, We invite contributions to this Special Issue on aspects listed in the keywords, covering recent advances and innovations in flotation chemistry, which will be of direct interest to researchers and practitioners in the mineral ,...Know More
  • Effect of modified starch on separation of fluorite from ,

    In this study, starch was modified with a ferric salt, with the subsequent modified starch (MS), and then evaluated with single mineral flotation tests and binary mixed mineral flotation tests The depression mechanism has been investigated by FTIR spectra analyses, zeta potential measurements and contact angle measurements...Know More
  • Adsorption of starch, amylose, amylopectin and glucose ,

    Flotation tests were performed with a Hallimond tube After conditioning, the mineral sample was floated for 1 min at 55 ml/min nitrogen gas flow 226 Surface area Specific surface area of mineral samples was deter-mined by the BET method 3 Results and discussion The adsorption isotherms for corn starch on hematite and quartz are shown ....Know More
  • Sorghum starch as depressant in mineral flotation: part 2 ,

    Other starch sources have been studied in the last decades, and some have been industrially adopted Cassava starch is used as iron ore depressant in some mineral processing plants in Brazil Cassava starch can enhance the flotation selectivity On the other hand, its price fluctuations render the substitution of cornstarch a risk...Know More
  • Depressants and Flocculants in Iron Ore Beneficiation ,

    Anionic Silica Flotation In the soap flotation of activated silica from iron ores a critical amount of starch addition exists beyond which flotation performance stabiliz This critical amount of starch is dependent on the degree of grind and hence on the amount of slimes contained in the ore...Know More
  • (PDF) Temperature influence in cornstarch gelatinization ,

    Temperature influence in cornstarch gelatinization for froth flotation , requirements of the mineral industry The major source of starch used for iron ore is the cornstarch, which needs to be ....Know More
  • Temperature influence in cornstarch gelatinization for ,

    The starch market has been growing and improving in recent years, leading to better products attending the requirements of the mineral industry The major source of starch used for iron ore is the cornstarch, which needs to be gelatinized, by heat or sodium hydroxide (NaOH) addition (also known as caustisized starch), prior its use...Know More
  • Rice starch as a depressant in phosphate reverse flotation ,

    In the current study, the rice starch is used, as a phosphate depressant, in the reverse flotation of calcareous phosphate by oleic ac The operating parameters affecting the starch depressing action such as: collector dosage, pH and starch dosage are studied using statistical design of experiments...Know More
  • The Importance of pH in Flotation

    In flotation, pH control is a vital method to control selective mineral separation A standard depressant that is used is an Alkali An Alkali is any substance that when mixed with Acid will neutralize each other and form a new chemical substance called a BASE This is very important The ore may be either alkaline or Acidic To have a positive control over flotation, it is necessary to be ....Know More
  • Mineral Processing and Extractive Metallurgy Review

    The flotation response as a function of pH and collector concentration was analyzed, wherein quartz was not responsive to floatation in single mineral flotation tests in the presence of anionic collectors but C 12 amine flotation of quartz was observed to be pH and concentration dependent...Know More
  • Mineral Processing and Extractive Metallurgy Review

    The flotation response as a function of pH and collector concentration was analyzed, wherein quartz was not responsive to floatation in single mineral flotation tests in the presence of anionic collectors but C 12 amine flotation of quartz was observed to be pH and concentration dependent...Know More
  • DEXTRINS AS SELECTIVE FLOTATION DEPRESSANTS FOR ,

    Dextrins as selective flotation depressants for sulfide minerals 277 depressing power towards copper minerals because the reduction of flotation of copper minerals is greater than towards the lead minerals Still greater amount of dextrin N-8 depresses flotation of sulfides in the ore almost completely Fig6...Know More
  • Dissolution of starch and its role in the flotation ,

    The results suggest that there is a strong correlation between starch solubility and the depressing ability Among these starches tested, waxy starch and normal starch, which have relatively high amylopectin contents, are preferred for being used in the flotation separation of quartz from hematite as depressant after proper solution preparation...Know More
  • Cationic Silica Flotation from Taconite

    These measurements were followed by the addition of CaCl2 (used as a pretreatment to enhance flotation selectivity), starch (to suppress the iron oxide from floating), an adjustment to pH 8, a resistivity adjustment to 50 Ωm, addition of MG83A (the long chain amine or collector) and MIBC (a froth stabilizer)...Know More
  • Copper-Lead-Zinc ores - Danafloat

    The zinc reporting to the bulk flotation tails feeds the zinc circuit which is operated as previously described in the lead-zinc flotation section Which flotation scheme used in the differential copper-lead bulk concentrate separation is generally and often dependent upon which mineral has the greater mass in the bulk concentrate...Know More
  • Depressing Iron Mineral by Metallic-Starch Complex (MSC ,

    A series of metallic-starch complex (MSC) solutions, synthesized by mixing relevant metallic ionic solutions with the caustic starch solution, were used as the flotation depressants to investigate their depressing effects on hematite ore The MSC is a nano-sized colloidal complex which is configured by hydrophilic metallic hydroxide as the colloidal nucleus on which starch and hydroxyl complex ....Know More
  • ROLE OF STARCH AND METABISUPHITE ON PURE PYRITE ,

    starch at pH 65 where pyrite flotation is expected to be weak at pH 10 This can be explained as because starch adsorbed on mineral surface through the interaction with metal-hydroxylated species on the pyrite So that increasing the pH caused the metal hydroxylated species on the pyrite and the adsorption of the starch occurred and more...Know More
  • Starch of Flotation - Froth Flotation (Sulphide & Oxide ,

    At the reverse flotation, often using traditional reagents: amine, dextrin (starch), frother, CaO However, the flotation has a problem When adding a starch to the flotation, the content of SiO2 in of iron concentrate is 08-09 % If carried out flotation without the starch then content of SiO2 in the iron concentrate is 08-09 %...Know More
  • US5106489A - Zircon-rutile-ilmenite froth flotation ,

    This invention relates to a method for recovering a bulk concentrate of zircon and a bulk concentrate of rutile-ilmenite from dry plant tailings A process has been discovered for froth flotation by manipulating the surface charges of dry plant tailings Conditioning reagents, sulfuric acid to lower the pH; corn starch to coat the minerals to be depressed; sodium fluoride to activate the ....Know More
  • US5693692A - Depressant for flotation separation of ,

    A new depressant for use in enhanced separation of polymetallic sulphides is described The depressant agent is used in conjunction with conventional collector agents and frothing agents in the flotation separation of copper, nickel, lead, zinc sulphides by depressing iron sulphides such as pyrrhotite, pyrite and marcasite in the tailing...Know More
  • Rice starch as a depressant in phosphate reverse flotation ,

    In the current study, the rice starch is used, as a phosphate depressant, in the reverse flotation of calcareous phosphate by oleic ac The operating parameters affecting the starch depressing action such as: collector dosage, pH and starch dosage are studied using statistical design of experiments...Know More
  • Depressing Iron Mineral by Metallic-Starch Complex (MSC ,

    A series of metallic-starch complex (MSC) solutions, synthesized by mixing relevant metallic ionic solutions with the caustic starch solution, were used as the flotation depressants to investigate their depressing effects on hematite ore The MSC is a nano-sized colloidal complex which is configured by hydrophilic metallic hydroxide as the colloidal nucleus on which starch and hydroxyl complex ....Know More
  • Sorghum starch as depressant in mineral flotation: part 1 ,

    The mineral industry is constantly searching for new and sustainable innovations, in order to improve its results and process In this context, sorghum (Sorghum bicolor (L) Moench), a widely farmed crop, was characterized and tested as an alternative depressant in mineral flotationStarch was extracted from sorghum flour produced with grains cultivated in Brazil, resulting in an extraction ....Know More
  • DEXTRINS AS SELECTIVE FLOTATION DEPRESSANTS FOR ,

    Dextrins as selective flotation depressants for sulfide minerals 277 depressing power towards copper minerals because the reduction of flotation of copper minerals is greater than towards the lead minerals Still greater amount of dextrin N-8 depresses flotation of sulfides in the ore almost completely Fig6...Know More
  • US5106489A - Zircon-rutile-ilmenite froth flotation ,

    This invention relates to a method for recovering a bulk concentrate of zircon and a bulk concentrate of rutile-ilmenite from dry plant tailings A process has been discovered for froth flotation by manipulating the surface charges of dry plant tailings Conditioning reagents, sulfuric acid to lower the pH; corn starch to coat the minerals to be depressed; sodium fluoride to activate the ....Know More
  • Magnetic seeding depression in flotation of hematite ore ,

    magnetic seeds and applying a low field intensity pre-magnetization for depressing target mineral in flotation, was investigated in the reverse flotation of hematite ore slim Flotation tests found that the iron recovery increased with the addition of magnetic seeds; the depressing ability of starch in flotation...Know More
  • Crosslinked starches as depressants in mineral ore flotation

    Jul 13, 1982· Conventional starches are chemically crosslinked for use as selective depressants in the flotation of non-sulfide mineral or The process employing these crosslinked starches requires lower reagent dosages, exhibits improved selectivity and recovery and exerts a lower load on existing waste treatment faciliti...Know More
  • Effect of EDTA on quartz and hematite flotation with ,

    The flotation of both minerals pretreated with MnCl 2 (Figures 3a and 3b) is severely affected by Mn and corn starch together, showing a synergetic effect (ie greater than the depression effects of both reagents separately), as presented in Figure 2 The addition of starch had a reduced effect on the flotation of hematite pretreated with MnCl ....Know More
  • (PDF) Sorghum starch as depressant in mineral flotation ,

    Sorghum starch as depressant in mineral flotation: Part 2 - flotation tests , The results suggest that humic acid could be used as an alternative for starch in the iron ore flotation process View...Know More
  • US2466995A - Starch-caustic in apatite-ilmenite froth ,

    6l A method of separating phosphorous-bearing minerals from mixtures thereof containing at least one metallic oxide mineral which comprises the steps of subjecting an aqueous pulp of the mixture-to froth flotation in the presence of starch and a member of the group consisting of the sodium, potassium and ammonium hydroxides the starch ....Know More