flocculating agent for copper ores

Modeling and optimization of chemical reagents to improve …

In this paper, the main and interaction effects of chemical reagent (collector and frother) dosages on the copper flotation performance using response surface …

Stability Considerations for Pharmaceutical Suspensions

Controlled flocculation can be achieved by a combination of control of particle size and the use of flocculating agents. The most common categories of flocculating agents are electrolytes, surfactants, and polymers. i. Electrolytes. Electrolytes act by reducing the zeta potential, which brings the particles together to form loosely arranged ...

Influence of Flocculating Agents and Structural Vehicles on …

Aluminum chloride as a flocculating agent did not show desirable properties, because in comparison with sodium citrate, the sedimentation speed was decreased and their supernatant was unclear. Therefore, according to median values of F, N and b ( Table 4 ), the formulation containing sodium citrate 0.3% as a flocculating …

A review on application of flocculants in wastewater treatment

Copper: 99.6% removal: Li et al. (2003) Modified alum (Envifloc-40L) Industrial grade flocculant (Profloc 4190) Palm oil mill effluent: Turbidity ... Such characteristics give easy approachability to contaminants in effluent and thus are claimed to be more efficient as flocculating agents at low dosage (Bolto and Gregory, 2007, ...

Flocculant

The flocculation of flotation tailings from one of the major Chilean copper mines and Orifloc-2010 polycarylamide flocculant in a Couette-type reactor was recently ... The microbes selected as the flocculating agent must able to release extracellular polymeric substances when depleted of nutrients. The microbe was feed with an organic substrate ...

Use of Mixotrophic Bacteria as Flocculating Agents to …

Bioflocculation uses biosurfactants generated by mixotrophic bacteria that can modify the mineral surfaces as flocculating agents; thus, fine minerals can be settled and separated from clean water (supernatant). ... Biological treatment of clarified wastewater from the flotation of copper–cobalt ores Article 31 March 2021. …

Flocculant: How And When To Use It | The Pool Daily

Flocculant, also known as a flocculating agent, is a chemical compound that is used in various industries to promote the aggregation and settling of suspended particles in a liquid. ... They aid in the recovery of valuable minerals from ore slurry, as well as in the dewatering and disposal of waste materials, reducing environmental impact and ...

Method for settling micro-fine particle lead-zinc tailings by …

The invention discloses a method for settling micro-fine particle lead-zinc tailings by using copper flash furnace slag as a flocculating agent and belongs to the environment-friendly technology field of water treatment The copper flash furnace slag is added to pulp of the micro-fine particle lead-zinc tailings and is mixed and stirred, then settling is started …

Flocculants—an Ecofriendly Approach | Journal of Polymers …

They observed that these grafted copolymers are effective flocculating agents for wastewater from the dyeing of silk . ... especially in the flotation of potash and copper–nickle sulphide ores. They are used in concentration of 0.2–0.5 lb (0.1–0.25 kg) ...

The Importance of pH in Flotation

Lime or some other flocculating reagent can be added to coagulate the slime but the amount needed is often prohibitive. ... being confined chiefly to the treatment of lead and zinc ores. There are, however, one or two ores containing sulphide copper minerals which need an acid circuit for successful flotation. by David Michaud February …

Flocculation on a chip: a novel screening approach to determine floc

Flocculation is a key purification step in cell-based processes for the food and pharmaceutical industry where the removal of cells and cellular debris is aided by adding flocculating agents. However, finding the best suited flocculating agent and optimal conditions to achieve rapid and effective flocculatio Lab on a Chip Recent Open Access …

An experimental study on the flocculating settling of …

Introduction. Mine backfilling plays a significant role in improving ground stability, increasing ore recovery, and controlling underground pressure and thus has both economic and environmental benefits [1–3].Therefore, mine backfilling is being widely used all over the world in many underground mines [4–6].The development of backfilling …

IJERPH | Free Full-Text | Preparation, Performances, and

In the application of flocculating agents, coagulants are always used to enhance flocculants' performance. Different kinds of microbial flocculants used different metal ions as coagulant aids (i.e., Ca 2+, Mg 2+, Mn 2+, Al 3+) . The presence of high concentrations of Ca 2+ protects microbial flocculants from degradation enzymes.

A critical review on flocculants and flocculation

mineral ore beneficiation as well as wastewater and min-ing sludge treatment. Biopolymers with higher solubility ... The flocculating agents are largely classified into two groups, e.g. organic ...

Flocculation

Potentials and challenges in biodiesel production from algae—technological outlook. S. Chozhavendhan, ... Baskar Gurunathan, in Biofuels and Bioenergy, 2022. 9.5.2.2.1 Flocculation. Flocculation is the most conventional and effective method among the aforementioned processes of microalgae harvesting of large-volume of culture. …

Improving Flocculation Performance of Copper Flotation …

The purpose of this study is to identify the physical, mineralogical, and electrochemical properties of copper flotation tailings as well as to investigate how …

Production, Characterization, and Flocculation Mechanism of …

Introduction. Flocculating agents, widely used in industrial processes such as wastewater treatment, are classified into three groups i.e., inorganic flocculants such as aluminium sulphate; organic synthetic high polymer flocculants such as polyacrylamide (PAM); natural flocculants or bioflocculant such as microbial flocculant, .Synthetic high …

A Study on Selective Flotation in Low and High …

This work aimed at investigating the impact of simultaneously used ultrasonic waves under variant operating configurations on the flotation of representative porphyry copper ore during rougher...

The Extraction of Copper

Once again, the sulfide ions are acting as the reducing agent. Extracting of Copper from Other Ores. Copper can be extracted from non-sulfide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulfuric acid to produce a very dilute ...

The effect of clay minerals on the process of flotation of copper ores

Processing of high clay ores is usually related to negative effects in particular in the flotation stages. A good description was made recently in the work by Chen and Peng (2018), who developed a general review about the mechanisms and behaviour of clays in mineral flotation.The background they presented is general and useful for any …

Flocculation of sulfides and the role of a complexing agent

complexing agent such as diphenylguanidine that interacts specifically with copper minerals. In-teractions between many components are possible in these systems and …

Flocculating Agents

Flocculating agents are either inorganic salts or water‐soluble organic polymers. They act by shrinking the ionic double layer, or neutralizing the surface charge of suspended particles, or bridging between particles. The type of flocculant used depends on the type of solid‐liquid separation being performed. The physical properties and size ...

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The process involves two basic flotation methods: (a) fatty acid flotation of oxide copper minerals from siliceous ore, and (b) sulphidization of oxide copper minerals followed by …

Promising energy-storage applications by flotation of graphite ores…

1. Introduction. Graphite ore is a mineral exclusively composed of sp 2 hybridized carbon atoms with p-electrons, found in metamorphic and igneous rocks [1], a good conductor of heat and electricity [2], [3] with high regular stiffness and strength. Note that graphite (plumbago) can maintain its hardness and strength at a temperature of up …

A Study on Selective Flotation in Low and High Pyritic Copper Sulfide Ores

The effect of chemical reagent configurations was investigated on two different copper sulfide ore types including high and low pyritic feeds. Three different combination of collectors as ...

Flocculating Agent

High MW carboxylic acid polymers based on polyacrylamide are extensively employed as flocculating agents in the water and other process industries, where a low CD is the general rule. Copolymers of the structure included in Fig. 1 can be prepared either by copolymerisation of acrylamide and acrylic acid or its salts, or by polymerisation of …

Performance Mining Reagents

Certain product mixtures are particularly useful as flotation reagents; specifically collectors in the flotation of molybdenum-bearing copper ores, where molybdenum recovery has …

Application of Sulfide Copper Ores Oxidizing Roasting …

Use of the method of direct ore processing [7, 8] is limited for production and economic reasons.A version of rational use of pyrite ores may combined processing with oxidized nickel ores [].Reduction sulfiding melting of the latter using the product of partial oxidation firing of copper ore as a sulfiding agent makes it possible to obtain copper …

An experimental study on the flocculating settling …

In this work, the effect of slurry concentration, flocculant unit consumption and flocculant concentration, feed velocity, mud height and rake speed on the flocculating settling of unclassified tailings were …

Flocculated and Deflocculated suspension & stability …

2. Type of Dispersing Agent: The choice of dispersing or flocculating agents can significantly impact the state of the suspension. Flocculating agents encourage particle aggregation while deflocculating agents prevent it. 3. Particle Size: Smaller particles tend to remain in suspension more easily. However, the interactions …