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solids dissolved in gold extraction process water

More gold is recovered by cyanidation than by any other process. In cyanidation, metallic gold is oxidised and dissolved in an alkaline cyanide solution. When gold dissolution is complete, the goldbearing solution is separated from the solids.

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Processing  smelting and refining gold   World Gold Council

Processing smelting and refining gold World Gold Council

More gold is recovered by cyanidation than by any other process. In cyanidation, metallic gold is oxidised and dissolved in an alkaline cyanide solution. When gold dissolution is complete, the goldbearing solution is separated from the solids.

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How to Make Gold Plating Solution    3 Steps   Instructables

How to Make Gold Plating Solution 3 Steps Instructables

To make gold chloride, we need to dissolve gold in aqua regia. mixture of nitric acid and hydrochloric acid at molar ratio 13 In my case, I have 18K gold scrap, but the purity of gold makes no difference as gold will be purified to 24K during the process.

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 PDF  Simple method for extracting gold from electrical

PDF Simple method for extracting gold from electrical

In a twostage leaching process, copper was mostly dissolved 97 in 165 min at 25176C during the 1st stage leaching in 2.0 molL HCl by electrogenerated chlorine at a current density of 714Am2 ...

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Gold Mining Process Development – Denver Mineral …

Gold Mining Process Development – Denver Mineral …

Gold cyanide is adsorbed into the pores of activated carbon, resulting in a process solution that is devoid of gold. The loaded carbon is heated by a strong solution of hot caustic and cyanide to reverse the adsorption process and strip the carbon of gold. Gold is then removed from the …

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v118n5a2 Test work to examine the potential for …

v118n5a2 Test work to examine the potential for …

extractions based on both solids and solution analysis. Carbonaceous components in the ore can adsorb dissolved gold during leaching, thus reducing gold extraction. It has been reported that in some cases, as little as 0.1 carbon can have pregrobbing removing gold from solution irreversibly or pregborrowing removing gold from solution ...

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How to Use Bleach on Gold Ore to Remove Gold   Sciencing

How to Use Bleach on Gold Ore to Remove Gold Sciencing

Apr 24, 2017018332Gold is an almost nonreactive metal, but halogens — chlorine, bromine, fluorine and iodine — can dissolve it. Chlorine is the cheapest and lightest product that can achieve this. Bleach is the chemical compound sodium hypochlorite. When combined with hydrochloric acid, the mixture produces chlorine that dissolves gold from gold ore.

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Cornstarch Replaces Cyanide In Gold Extraction   Popular

Cornstarch Replaces Cyanide In Gold Extraction Popular

May 14, 2013018332Cornstarch Replaces Cyanide In Clean New Gold Extraction Method. Scientists accidentally discover a new way to isolate gold that is much …

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Extraction Theory  and You

Extraction Theory and You

Acids dissolve pretty easily, sugars take longer to dissolve, and those bitter, dry plant solids are pretty dense and are made up of large molecules that take the longest to dissolve. Because these all dissolve in the same order, when we calculate an extraction yield as 15, 21, or 25 of the total soluble material, we can usually assume a ...

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Extracting gold from gold filled Jewelry   Gold Refining

Extracting gold from gold filled Jewelry Gold Refining

Sep 28, 2017018332your reaction may have run out of nitric before it was completed.some gold filled jewelry will hold its shape even after the base metal has been dissolved depending on the type and wear. filter the solution you have now into a clean vessel to reclaim the silver and replace the solution with fresh acid and start the reaction again to be sure you have dissolved all the base metal.

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What Is The Acceptable Total Dissolved Solids  TDS  Level

What Is The Acceptable Total Dissolved Solids TDS Level

The total dissolved solids present in water are one of the leading causes of turbidity and sediments in drinking water. When left unfiltered, total dissolved solids can be the cause of various diseases. Total dissolved solids TDS is a measure of the combined total of organic and inorganic substances contained in a liquid.

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LABORATORY 2  SOLIDS OBJECTIVES  INTRODUCTION

LABORATORY 2 SOLIDS OBJECTIVES INTRODUCTION

Solids refer to the matter suspended or dissolved in water or wastewater. Water high in dissolved solids generally tastes bad, requiring water treatment facilities to reduce the dissolved solids concentration below 500 mgL. If the concentration of suspended solids is high, the water may be deemed unsuitable for bathing or cooking.

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water purification   Description  Processes   amp  Importance

water purification Description Processes amp Importance

Water purification, process by which undesired chemical compounds, organic and inorganic materials, and biological contaminants are removed from water.That process also includes distillation the conversion of a liquid into vapour to condense it back to liquid form and deionization ion removal through the extraction of dissolved salts. One major purpose of water purification is to provide ...

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CHAPTER XV  GRAVIMETRIC METHODS

CHAPTER XV GRAVIMETRIC METHODS

For volatile and fixed total or dissolved solids, the evaporating dish with residue prepared for total or dissolved solids analysis dried to a constant weight should be used. 2. Ignite the sample and vessel in a preheated muffle furnace set at 550 177 50 176 C for 1520 min water amp wastewater or 1 hour sludge, sediment amp soil.

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Use in Mining   International Cyanide Management Code

Use in Mining International Cyanide Management Code

Gold and silver typically occur at very low concentrations in ores less than 10 gt or 0.001 mass basis. At these concentrations the use of aqueous chemical hydrometallurgical extraction processes is the only economically viable method of extracting the gold and silver from the ore. Typical hydrometallurgical recovery involves a leaching step during which the metal is dissolved in an ...

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Gold Extraction   an overview   ScienceDirect Topics

Gold Extraction an overview ScienceDirect Topics

Mineralogical factors that usually have an impact on gold extraction from carbonaceous ores by the roastingCIL process see Chapters 23 and 24 Chapter 23 Chapter 24 are listed next. Unoxidized locked in rock mineral particles goldbearing sulfide inclusions • Unleached oxidized goldbearing sulfide FeO x inclusions in rock mineral particles. Formation of goldbearing ferrous pyroarsenite

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Processing  smelting and refining gold   World Gold Council

Processing smelting and refining gold World Gold Council

More gold is recovered by cyanidation than by any other process. In cyanidation, metallic gold is oxidised and dissolved in an alkaline cyanide solution. When gold dissolution is complete, the goldbearing solution is separated from the solids.

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Frequent Questions Related to Gold King Mine Response

Frequent Questions Related to Gold King Mine Response

The Gold King Mine is one of 48 mining sites in the Bonita Peak Mining District, which the agency recently proposed to be added to the National Priorities List. The agency is accepting comments regarding this proposed listing through June 6.

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Total Dissolved Solids by Gravimetric Determination

Total Dissolved Solids by Gravimetric Determination

Total dissolved solids is a measure of the dissolved matter in a water that remains after all the water has been evaporated. A higher level of dissolved solids is typically accompanied with a higher level of hardness. Dissolved solids affect water quality by making it unfit or unpalatable to drink,

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Mining  amp  Gold Processing   OGSI  Oxygen Generator

Mining amp Gold Processing OGSI Oxygen Generator

Increased Gold Recovery An increase in the dissolved oxygen level of gold bearing slurry enhances the gold cyanidation process. Mines operating at 98.5 recovery rates can expect a full percentage increase by boosting dissolved oxygen levels above 20 ppm. Mines operating below 98.5 recovery can expect even greater improvement.

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Extracting gold from gold filled Jewelry   Gold Refining

Extracting gold from gold filled Jewelry Gold Refining

Sep 28, 2017018332your reaction may have run out of nitric before it was completed.some gold filled jewelry will hold its shape even after the base metal has been dissolved depending on the type and wear. filter the solution you have now into a clean vessel to reclaim the silver and replace the solution with fresh acid and start the reaction again to be sure you have dissolved all the base metal.

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Exp 6   Extraction

Exp 6 Extraction

Experiment 8 – Extraction pg. 2 1. Extraction Theory Let’s consider a compound X that is dissolved in water. Compound X is water soluble, but is more soluble in diethyl ether. Suppose the solubility of X in water is 2.0 g100 mL, while its solubility in ether is 10.0 g100 mL.

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Experiment 3  Extraction  Separation of an Acidic  a Basic

Experiment 3 Extraction Separation of an Acidic a Basic

Naphthalene is soluble in methanol and insoluble in water. It will dissolve in a hot mixture of 31 methanolwater but is less soluble when this mixture is cold. To recrystallize the naphthalene, heat about 50 mL of the 31 methanolwater mixture almost to the boiling point on a steam bath see p. 78 in LTOC. Add some of this hot solvent to

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Total Dissolved Solids   Good or Bad    183  Waterlogic

Total Dissolved Solids Good or Bad 183 Waterlogic

Nov 17, 2017018332In most instances, TDS in your drinking water will not present a health problem b ut i ts important to note, should TDS levels exceed 1000mgL, the drinking water can be considered unfit for human consumption. If you are interested to find out what solids are in your drinking water, it can be useful to have a TDS water meter in your home.

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Removing Heavy Metals From Wastewater

Removing Heavy Metals From Wastewater

process as applied to industrial wastewater treatment. Definitions The following words or phrases are commonly used when discussing metal removal. Caustic Refers to sodium hydroxide NaOH. When caustic is added to water, the water becomes strongly alkaline pH gt gt 7. Concentration The quantity of a material in a given volume of solution.

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Merrill Crowe

Merrill Crowe

Next, the recovery stage of the solubilized gold from solution follows in what is known as as the MerrillCrowe process, the most efficient and inexpensive separation technique of removing gold from a cyanide solution by using zinc dust to precipitate gold from its solution.

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How to Make 24K Gold   Sciencing

How to Make 24K Gold Sciencing

Apr 24, 201701833224K gold is the highest purity of gold commercially sold. It has numerous industrial and investment uses, but the term 24K gold is most commonly associated with jewelry. Because gold is an element, it cannot really be made. However, gold can be refined to the 24K level. Gold found in nature, scrap gold from industry ...

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Temporal Variability of Sediments  Dissolved Solids and

Temporal Variability of Sediments Dissolved Solids and

For three decades, the solid and dissolved fluxes of the Congo River have been regularly monitored on a monthly basis, despite 12 years of deficiencies 1994–2005. Two programs successively carried out these followups PEGIGBF 1987–1993 and SO HYBAM 2006–2017, upstream and downstream, respectively, of the Malebo Pool near Brazzaville, the main hydrometric station of the Congo River.

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Cyanide Process   gold  solution  ores  ore  dissolved

Cyanide Process gold solution ores ore dissolved

In the process, pulverized gold ores or the tailings from amalgamation are mixed with a dilute solution of potassium cyanide KCy or sodium cyanide NaCy in water. The gold and silver are dissolved and the solution is separated from the ore by filtration.

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EXTRACTION OF GOLD FROM SEA–WATER   Nature

EXTRACTION OF GOLD FROM SEA–WATER Nature

WITH about five million pounds worth of gold dissolved in each cubic mile of sea–water, man has often sought a way of digging out this treasure. Using electrochemical methods, comparable to ...

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Gold Extraction   an overview   ScienceDirect Topics

Gold Extraction an overview ScienceDirect Topics

Mineralogical factors that usually have an impact on gold extraction from carbonaceous ores by the roastingCIL process see Chapters 23 and 24 Chapter 23 Chapter 24 are listed next. Unoxidized locked in rock mineral particles goldbearing sulfide inclusions • Unleached oxidized goldbearing sulfide FeO x inclusions in rock mineral particles. Formation of goldbearing ferrous pyroarsenite

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The effects of dissolved oxygen and cyanide dosage on gold

The effects of dissolved oxygen and cyanide dosage on gold

Feb 01, 2004018332The plant processes a blend ratio of up to 11 of underground sulphide ore and open pit ore at a rate of 115 tph. The gravity circuit recovers the fine free gold P 80 ≈75 μm, 10–20 of the total amount of gold inputted into the plant, to produce a gravity concentrate with a fine gold purity of between 75 and 80.Fig. 1 illustrates the leaching and adsorption circuit schematically ...

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Electrocoagulation for Mine Water Treatment  Myths

Electrocoagulation for Mine Water Treatment Myths

Apr 26, 2017018332The mining industry has long used coagulation to remove suspended solids. Coagulation is typically applied prior to filtration or sedimentation in the overall wastewater treatment process. The technology is also effective for the treatment of oily water to remove turbidity, colour and silica.

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Can Gold be Extracted from Seawater   with pictures

Can Gold be Extracted from Seawater with pictures

Aug 16, 2020018332Yes, it is possible to extract gold from seawater in theory, but its really not practical to do so. It is estimated that there is, in total, about eight million tons of gold dissolved in the world’s oceans. While this is a lot, the oceans are huge, and the actual concentration of gold in seawater is only about 0.0000000006. To put it ...

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Researchers Fishing Pure Gold from Seawater – …

Researchers Fishing Pure Gold from Seawater – …

May 16, 2016018332Uranium, gold, lithium In saltwater billion tons of valuable raw materials are dissolved. Previously, it was difficult to extract them out. Now researchers are venturing again into fishing the treasure from seawater.

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Ultrasonic Dissolving of Solids in Liquids   Hielscher

Ultrasonic Dissolving of Solids in Liquids Hielscher

Ultrasonic Cavitation for Dissolving. If the sample is soluble, the solute such as succralose, salts, e.g. in powder or tablet form can be dissolved in a solvent e.g. water, aqueous solvents, organic solvents etc. resulting in a homogeneous mixture, composed of only one phase.

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 Liquid Solid  Leaching Preparation of Solids for Leaching

Liquid Solid Leaching Preparation of Solids for Leaching

leaching process, when an undesirable component is removed from a solid with water, is called washing. Leaching is widely used in the biological and food processing industries, such as the separation of sugar from sugar beets with hot water, the extraction of oils from peanuts, soybeans, sunflower seeds, cotton seeds, and halibut livers.

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Solubility Curves for solid in water  liquid in water and

Solubility Curves for solid in water liquid in water and

Jan 29, 2020018332Factors Affecting Solubility of a Solids in Liquids Nature of solutes Polar solvent e.g. water dissolves polar solute e.g. NaCl, KCl and nonpolar solvents CCl 4, CS 2 dissolve nonpolar solutes e.g. I 2, S 8. Temperature The solubility of a solid in a liquid is significantly affected by temperature changes. Consider the equilibrium ...

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The mathematics of coffee extraction  Searching for the

The mathematics of coffee extraction Searching for the

Nov 15, 2016018332Undissolved solids are filtered from the dissolved particles, and the resulting liquid becomes the concoction that much of the population drinks every day. …

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What Is TDS  Total Dissolved Solids in Water and Drinking

What Is TDS Total Dissolved Solids in Water and Drinking

What are Total Dissolved Solids in Water Water is called a universal solvent because it’s able to dissolve and absorb molecules from many different substances. TDS is defined as the combined content of all inorganic and organic substances contained in a liquid that are present in a molecular, ionized or microgranular suspended form.

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What are Total Solids    Definition from Corrosionpedia

What are Total Solids Definition from Corrosionpedia

Aug 22, 2019018332Total solids is a measurement that includes the combination of total dissolved solids and total suspended solids in a liquid. It is a measurement that is often used in the water treatment industry. A higher total solids level indicates that there is a high level of solid material in a liquid sample.

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How to Use Bleach on Gold Ore to Remove Gold   Sciencing

How to Use Bleach on Gold Ore to Remove Gold Sciencing

Apr 24, 2017018332Gold is an almost nonreactive metal, but halogens — chlorine, bromine, fluorine and iodine — can dissolve it. Chlorine is the cheapest and lightest product that can achieve this. Bleach is the chemical compound sodium hypochlorite. When combined with hydrochloric acid, the mixture produces chlorine that dissolves gold from gold ore.

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Chloride  Salinity  and Dissolved Solids   USGS

Chloride Salinity and Dissolved Solids USGS

The dissolved solids concentration in water is the sum of all the substances, organic and inorganic, dissolved in water. This also is referred to as “total dissolved solids”, or TDS. Calcium, magnesium, sodium, potassium, bicarbonate, sulfate, chloride, nitrate, and silica typically make up most of the dissolved solids in water.

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Dissolved In Gold Extraction Process Water

Dissolved In Gold Extraction Process Water

Simple Method For Extracting Gold From Electrical And . Of gold A certain amount of iron sulfate per one gram of gold 4.2 g of iron sulfate was dissolved in warm water and gradually added to the goldcontaining solution. For better dissolution of iron sulfate, some drops of HCl can be used.

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Gold Extraction   an overview   ScienceDirect Topics

Gold Extraction an overview ScienceDirect Topics

Mineralogical factors that usually have an impact on gold extraction from carbonaceous ores by the roastingCIL process see Chapters 23 and 24 Chapter 23 Chapter 24 are listed next. Unoxidized locked in rock mineral particles goldbearing sulfide inclusions • Unleached oxidized goldbearing sulfide FeO x inclusions in rock mineral particles. Formation of goldbearing ferrous pyroarsenite

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Modern alchemy leaches gold from water   Phys org

Modern alchemy leaches gold from water Phys org

Oct 28, 2012018332Gold, platinum, palladium and rhodium, the worlds most precious metals, are retrieved from waste water by French startup Magpie Polymers. …

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The effects of dissolved oxygen and cyanide dosage on gold

The effects of dissolved oxygen and cyanide dosage on gold

In the cyanidation process, gold dissolution is controlled by factors such as cyanide and oxygen concentrations, pH, solidliquid interface, reduction potential E h of the slurry, alkalies,...

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The effects of dissolved oxygen and cyanide dosage on gold

The effects of dissolved oxygen and cyanide dosage on gold

Feb 01, 2004018332It is preferred that a CN − level of at least 53 mgL is discharged with the slurry to the tails dam to ensure that any leachable gold is dissolved and returned to the plant in the tails return water. Typically, the solution losses to the tails dam are 0.01 Au gt and the tails return water contains 0.03 Au gt.

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Electrocoagulation for Mine Water Treatment  Myths

Electrocoagulation for Mine Water Treatment Myths

Apr 26, 2017018332The mining industry has long used coagulation to remove suspended solids. Coagulation is typically applied prior to filtration or sedimentation in the overall wastewater treatment process. The technology is also effective for the treatment of oily water to remove turbidity, colour and silica.

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Oxygen Sparging Improves Gold Leaching

Oxygen Sparging Improves Gold Leaching

CPT SlamJet Oxygen Sparging Improves Gold Leaching. The dissolution of gold through cyanidation, either Carbon in Pulp CIP or Carbon in Leach CIL, is an oxidizing reaction. Generally added oxygen, in the form of dissolved oxygen in solution, improves the process as the rate of gold dissolution is directly proportional to the amount of dissolved oxygen in solution.

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Solubility Curves for solid in water  liquid in water and

Solubility Curves for solid in water liquid in water and

Jan 29, 2020018332Factors Affecting Solubility of a Solids in Liquids Nature of solutes Polar solvent e.g. water dissolves polar solute e.g. NaCl, KCl and nonpolar solvents CCl 4, CS 2 dissolve nonpolar solutes e.g. I 2, S 8. Temperature The solubility of a solid in a liquid is significantly affected by temperature changes. Consider the equilibrium ...

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Total Dissolved Solids  TDS   amp  Methods to Reduce Them

Total Dissolved Solids TDS amp Methods to Reduce Them

“Total dissolved solids TDS is the term used to describe the inorganic salts and small amounts of organic matter present in solution in water.” The principal constituents are usually calcium, magnesium, sodium, and potassium cations and carbonate, hydrogencarbonate, chloride, sulfate, and nitrate anions.

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What Is The Acceptable Total Dissolved Solids  TDS  Level

What Is The Acceptable Total Dissolved Solids TDS Level

The total dissolved solids present in water are one of the leading causes of turbidity and sediments in drinking water. When left unfiltered, total dissolved solids can be the cause of various diseases. Total dissolved solids TDS is a measure of the combined total of organic and inorganic substances contained in a liquid.

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