Effective purification of graphite via low pulp density flotation-low
Carbon content in GFC was 85.6%, and the main gangues were quartz, hematite, and silicate. The route contains the three-step purification of the low pulp density flotation, low-temperature alkali roasting, and acid leaching. The high-grade flotation concentrate with 95% carbon content was. Declaration of Competing Interest
Efficient utilization of red mud waste via stepwise leaching to …
It is worth noting to say that this studies'method is simple and uses inexpensive reagents to obtain expensive nanosized γ-Al 2 O 3 while the reported methods for the preparation of such ...
CN102764700A
The invention discloses a preparation method of a low temperature resisting fluorite flotation collector. The method comprises the step of ensuring that acid oil produced in oleic acid and refined vegetable oil serves as a basic raw material, under the reaction condition of the temperature of 20-40 DEG C, and adding sulfuric acid which accounts …
Synthesis of a novel hydroxyl quaternary ammonium collector and its …
The flotation research of zinc oxide ores has been paid more and more attention with the increasing demand for zinc resources. In this particular study, micro-flotation tests were carried out using a mixed ternary collector comprising dodecylamine (DDA), potassium isoamyl xanthate (KAX), and ammonium dibutyl dithiophosphate …
A critical review on natural surfactants and their potential for
Mineral reverse flotation using biopolymers may become a potential alternative to conventional synthetic flotation agents thanks to their abundance, biodegradability, and sustainability. Over the past few years, many interesting studies on the application of biopolymers as depressants in flotation process have been conducted …
Preparation of Red Iron by Magnetization Roasting …
Commonly, magnetization roasting technology is applied to iron ores with weak magnetic properties (hematite, limonite, etc.), and these weak magnetic iron ores …
CN103056036A
The invention belongs to collophanite flotation technology, and relates to a collophanite normal-temperature direct flotation desilication collecting agent and a preparation method thereof, wherein the collecting agent comprises the following components in parts by weight: 95-100 parts of fatty acid, 10-15 parts of sodium hydroxide, 3-8 parts of …
Effective purification of graphite via low pulp density flotation-low
Carbon content in GFC was 85.6%, and the main gangues were quartz, hematite, and silicate. The route contains the three-step purification of the low pulp density flotation, low-temperature alkali roasting, and acid leaching. The high-grade flotation concentrate with 95% carbon content was produced by low pulp density flotation.
Flotation Reagent
The fine fraction, as shown in Figure 18, is processed with low-intensity magnetic separation to achieve a magnetite concentrate and its tailings is processed with SLon pulsating high-gradient magnetic separators as shown in Figure 19 to achieve a hematite concentrate. These two concentrates are combined and upgraded in a reverse flotation ...
Beneficiation of Low-Grade Hematite Iron Ore …
Article Recommendations. ABSTRACT: Present investigation includes the magnetizing roasting of low-grade iron ore fines followed by grinding and beneficiation using …
Tannin: An eco-friendly depressant for the green flotation …
Thus, several investigations have been conducted to explore a green approach for upgrading low-grade hematite ores by considering eco-friendly biodegradable depressants 1,[9][10][11][12][13][14 ...
CN105665150A
The invention discloses a phosphorus ore flotation collecting agent, particularly relates to a low-temperature phosphorus ore flotation collecting agent and a preparation method thereof, and belongs to the technical field of flotation collecting agents. According to the low-temperature phosphorus ore flotation collecting agent, octadecenoic acid …
Hematite low temperature flotation agent and preparation method …
Therefore, the current high energy consumption in the beneficiation process of hematite has aroused the attention of scientific researchers, especially the high temperature requirement of the flotation pulp, generally 35 ° C ~ 45 ° C, heating the pulp needs to consume a lot of steam, according to calculations per ton The average heating cost of …
CN104226488A
The invention relates to a preparation method of a floatation depressing agent, in particular to a preparation method of a micro-fine particle hematite reverse flotation depressing agent. The micro-fine particle hematite reverse flotation depressing agent is prepared from cornstarch, ammonium ceric nitrate, acrylamide, sodium bisulfite, …
CN102764700B
The invention discloses a preparation method of a low temperature resisting fluorite flotation collector. The method comprises the step of ensuring that acid oil produced in oleic acid and refined vegetable oil serves as a basic raw material, under the reaction condition of the temperature of 20-40 DEG C, and adding sulfuric acid which accounts …
Comparison of Sodium Oleate and Sodium Petroleum Sulfonate for Low
The results of flotation tests suggest that SPS exhibited much better collecting performance than SO under low temperature. The flotation mechanism of the two collecting agents were further ...
Direct measurement of oleate adsorption on …
Flotation recovery of hematite at pH 4 remained high under equilibrium oleate concentrations above the critical hemi-micelle concentration of oleate. Oleate …
Effects of Non-Ionic Surfactant on the Deep Temperature Flotation
This investigation involves the effects of non-ionic surfactant materials on the industrial sodium oleate, sodium naphthenate and their mixtures at different temperatures by the surface tension methods. The effects on the critical micelle concentration (CMC) of sodium oleate were assessed by the Toween 80(T-80) presence, polyethylene glycol, polyether …
CN109622233A
The present invention relates to a kind of hematite reverse flotation desilication methods, belong to mineral floating separation technology field.Other bloodstone sample ore to be selected and water are mixed evenly to obtain ore pulp, under ore pulp natural ph, the collecting agent are added by a kind of hematite reverse flotation desilication …
Beneficiation of Low-Grade Hematite Iron Ore Fines …
In this context, a low-grade hematite ore with 56.5% Fe has been subjected to heat treatment followed by grinding and wet high intensity magnetic sepn. (WHIMS). …
Potential application of an eco-friendly amine oxide collector …
All the flotation tests including single mineral and artificially mixed mineral were conducted by XFGII laboratory flotation machine within the 40 mL flotation cell. Prepare the pulp slurry with 5.0 g mineral sample in 30 mL distilled water, then mix the slurry under 1260 rpm for 2 min, after that, add the pH regulator and adjust the slurry pH ...
Flotation performance and mechanism of α-Bromolauric
When α-BLA was used as a collector, the recoveries of hematite and FAp decreased slightly but still achieved 91.01% and 91.47% at the flotation temperature 19 °C. When LA was used as a collector, the recoveries of the two minerals were significantly reduced to 79.05% and 68.22% at the same temperature.
Beneficiation of Low-Grade Hematite Iron Ore Fines by …
Hematite ore's magnetic characteristics were significantly impacted by magnetizing roasting. By selectively magnetizing roasting, hematite is transformed into magnetite. With an Fe grade of 65.25% at a recovery value of 72.5% in the concentrate, magnetic separation produced the greatest result for Fe.
(PDF) A Novel Method for Improving Low-Temperature Flotation
The results show that solid naphthalene (Nap) is easy to crystallize at low temperature and adhere to the surface of the flotation concentrate, resulting in a decrease of filtration velocity ...
CN103934115A
The invention discloses an efficient collecting agent for hematite reverse flotation and application of the efficient collecting agent to improve mineral separation efficiency and lower cost. The collecting agent comprises polyglycerol (4-hydrixy-3 methoxy-phenyl)-phenyl ether-sodium, unsaturated fatty acid and multi-(4-cyclopentyl) carboxylic acid in …
In situ synthesis of hematite nanoparticles using a low-temperature …
Up to now, various methods have been reported in the literatures on the preparation of hematite nanoparticles, such as the hydrolysis method [10,11], the hydrothermal treatment [12][13][14], the ...
Green hematite depression for reverse selective …
Reverse cationic flotation is currently the main processing technique for upgrading fine hematite from silicates. Flotation is known as an efficient method of …
Selecting Collecting Agents for Flotation | Journal of …
The number of hydroxyethyl groups can be increased under low-temperature conditions. It is shown that phosphenox is a good collector for fluorite, …
(PDF) Flotation of Iron Ores: A Review
This paper reviews the industrial practices and fundamental research surrounding iron ore flotation. The advantages and disadvantages of direct flotation, cationic reverse flotation, and anionic ...
Froth flotation of fluorite: A review
Combined with the existing data, the most commonly found fluorite flotation collector is the fatty acid, in particular sodium oleate. Still, the low-temperature resistance and low water solubility limit its application. The modified oleic and its derives via halogenation, sulfonation, sulfate, etc., can improve fluorite flotation.