Extracting Gold

 

Acid peroxide gold recovery is a gold extraction process that involves using a combination of hydrochloric acid (HCl) and hydrogen peroxide (H2O2) to dissolve gold from electronics or other gold-bearing materials. 

The process involves several steps:

1. Collect and prepare the gold-bearing material: 

This can include electronics, computer parts, or other items that contain gold.

2. Crush the material: 

The material is crushed into small pieces to increase the surface area for the acid peroxide solution to dissolve the gold.

3. Mix the acid peroxide solution: 

A solution is prepared by mixing hydrochloric acid and hydrogen peroxide in a specific ratio, typically 3 parts HCl to 1 part H2O2.

4. Add the acid peroxide solution to the material: 

The acid peroxide solution is added to the crushed material and allowed to react for several hours.

5. Filter and rinse the material:

 The material is filtered to separate the gold solution from the remaining material. The gold solution is then rinsed several times to remove any remaining acid.

6. Precipitate the gold: 

The gold is precipitated from the solution using a reducing agent, such as sodium metabisulfite, which causes the gold to form solid particles that can be filtered and washed.

The acid peroxide gold recovery process can be effective for recovering gold from electronics and other materials, but it does require the use of strong acids and can be hazardous if proper safety precautions are not taken. It's important to follow proper safety protocols and dispose of the waste materials in accordance with local regulations.

The process of gold mining can vary depending on the location and the type of deposit being mined. 

Underground mining: 

 

There are several acids that are commonly used in gold recovery, including:

1. Hydrochloric acid (HCl): This acid is commonly used to clean gold jewelry and remove any tarnish or dirt that may be present on the surface of the gold. It can also be used in some gold recovery processes to dissolve base metals and other impurities that may be present in the gold-bearing material.

2. Aqua regia: This is a mixture of nitric acid (HNO3) and hydrochloric acid (HCl) in a 1:3 ratio. It is a very strong and corrosive acid that can dissolve gold and other noble metals, such as platinum and palladium. Aqua regia is often used in gold refining and recovery processes to dissolve gold and separate it from other metals or impurities.

3. Sulfuric acid (H2SO4): This acid is commonly used in the production of fertilizers, detergents, and other industrial chemicals. In gold recovery processes, sulfuric acid can be used to dissolve base metals and other impurities that may be present in the gold-bearing material.

4. Nitric acid (HNO3): This is a strong and corrosive acid that can dissolve gold and other noble metals. It is often used in gold refining and recovery processes to dissolve gold and separate it from other metals or impurities.

It's worth noting that working with acids can be dangerous, and proper safety precautions should always be taken when handling them. This includes wearing appropriate personal protective equipment, working in a well-ventilated area, and following proper handling and disposal procedures.

 

Working with acids can be dangerous, so it's important to take proper safety precautions to minimize the risk of injury or exposure. Here are some general guidelines for working with acids:

1. Wear appropriate personal protective equipment (PPE): This includes gloves, eye protection, and a lab coat or apron. The PPE should be made of materials that are resistant to the acid being used.

2. Work in a well-ventilated area: Acids can release fumes that can be harmful if inhaled, so it's important to work in a space with good ventilation. If working in a fume hood or other enclosed space, make sure it is functioning properly and that the airflow is adequate.

3. Handle acids carefully: Acids should be handled with care to avoid spills or splashes. Always use the appropriate containers and equipment for the acid being used, and make sure they are clean and in good condition.

4. Add acids to water, not water to acids: When diluting acids, always add the acid to the water slowly and carefully, while stirring continuously. Never add water to acid, as this can cause a violent reaction.

5. Dispose of acids properly: Acids should be disposed of in accordance with local regulations and guidelines. They should never be poured down the drain, as this can cause environmental damage and pose a risk to public health.

6. Know what to do in case of an emergency: Make sure you know the location of the emergency shower, eyewash station, and other safety equipment in case of an accident or exposure.

It's important to follow these guidelines and any additional safety protocols specific to your workplace or the acid being used to minimize the risk of injury or exposure.

 

The efficiency of flotation compared to other gold extraction methods depends on several factors, including the characteristics of the ore, the type of deposit, and the specific extraction method used. In some cases, flotation may be more efficient than other methods, while in other cases, it may be less efficient.

For example, some types of gold deposits, such as refractory gold ores, are difficult to process using traditional cyanide leaching methods. In these cases, flotation may be a more efficient method of gold extraction, as it can help to recover gold particles that are not readily amenable to cyanide leaching.

On the other hand, some types of gold deposits may be better suited to other methods of extraction, such as gravity concentration or heap leaching. Gravity concentration can be particularly efficient for coarse gold particles, while heap leaching can be a low-cost method for extracting gold from large low-grade deposits.

Overall, there is no one-size-fits-all answer to the question of which gold extraction method is most efficient, as it depends on a variety of factors specific to each deposit. As such, it is important to carefully evaluate the characteristics of the ore and the potential benefits and drawbacks of each extraction method before deciding which method to use.

 

There are several advantages and disadvantages to using flotation for gold extraction, which I can outline below:

Advantages:

- Flotation can be used to extract very fine particles of gold, which may not be recoverable using other methods.

- Flotation is a relatively low-cost method of gold extraction, as it does not require the use of expensive reagents or high energy inputs.

- Flotation can be used to extract gold from a wide range of ore types, including those that are refractory or difficult to process using other methods.

Disadvantages:

- Flotation relies on the use of chemicals, such as collectors and frothers, which can be expensive and may have environmental impacts if not managed properly.

- Flotation can be sensitive to changes in the mineralogy of the ore, which can affect the efficiency of the process.

- Flotation can produce a concentrate that contains other minerals, which may need to be further processed or treated to extract the gold 

Overall, flotation is a useful method for gold extraction, but it is not without its drawbacks. As with any method of gold extraction, it is important to consider the specific characteristics of the ore and the potential impacts of the extraction process on the environment.

 

Sure! Gold extraction is the process of removing gold from its ores or other materials. There are several techniques that can be used to extract gold, depending on the type of deposit and the characteristics of the gold-bearing material.

One common method of gold extraction is cyanide leaching, which involves the use of a cyanide solution to dissolve the gold from the ore. The gold-containing ore is crushed into a fine powder and mixed with a dilute cyanide solution. The cyanide reacts with the gold in the ore to form a soluble gold-cyanide complex, which can then be recovered from the solution by various methods, such as carbon adsorption or precipitation with zinc dust.

Another method of gold extraction is gravity concentration, which relies on the differences in density between gold and other minerals in the ore. The crushed ore is fed into a series of devices that use gravity to separate the gold from the other minerals. The most common devices used for gravity concentration are sluices, jigs, and shaking tables.

Other methods of gold extraction include flotation, in which the gold is separated from other minerals by using chemicals that selectively bind to the gold particles, and heap leaching, in which the ore is piled onto a specially prepared pad and a solution is applied to the heap to dissolve the gold.

It's worth noting that gold extraction can have significant environmental impacts if not conducted properly. For example, the use of cyanide in gold extraction can lead to the release of toxic chemicals into the environment if not managed carefully. As such, there are strict regulations governing the use of cyanide and other chemicals in gold extraction.

How was gold extracted from ancient times?

gold

Gold continues to be a precious metal from antiquity to the present day. Even with time, gold remains among the precious metals that have not lost their valuable value due to its rare chemical properties. It is a metallic metal with stable atomic structure. It is rusty, non-oxidizing, Gemayel, and therefore humans sought ancient and modern ways to help them find and extract from nature.

 Ancient gold mining

There were many ways in the extraction of gold from nature and extraction, and it was not possible for humans, but God guidance to them to know the characteristics of this precious metal, and whereabouts, and then ways to extract; we will mention the most famous methods used by ancient diggers.

Places in the rocks:

Ancient humans have observed that gold is found in nature in certain places, and is often mixed with other elements and minerals. With experience and exploration, gold is found in coatz and basalt rocks and is often combined with other minerals, such as copper and silver.

Geographically located:

Ancient Egyptians searched for this precious metal everywhere. They noticed that it existed frequently in the estuaries, down the mountains and sometimes in the form of buried veins. Mining and drilling began with digging and extraction. The ancient Egyptians dug in mines to extract various kinds of minerals, including gold.

 Separation of gold from impurities:
The ancients used several methods to separate gold from impurities, such as rocks, stones and sand. These methods were all mechanical, and we do not mean the mechanics of any mechanism, but of centrifuge mechanics and atomic weight mechanics, as follows:

Screening:

The process of removing large impurities to facilitate the next stages of work; they were making sieves with holes of different sizes, putting the sand and stones that contain hidden gold granules, gold granules drop with very small stones and sand in another container, and then Look at the stones and large parts that remained in the sieve and did not descend; so as to make sure that there are no large gold blocks that did not descend from the holes, then they collect what they found from these large gold blocks (if any) and get rid of impurities. T for all components.

Centrifuges:

The process of separating the impurities from gold, as there are simple equipment for this process, which is a conical dish made of wood or iron, they would put in this dish the components obtained after the screening, and add water, and then start the circular swing process; To remove the sand and small gravel to the top and limbs; because it is lighter than gold, and thus descend and concentrate heavy metals such as gold and silver in the middle and bottom, and then wash the upper part of these impurities and get rid of them, as they repeat this process several times to keep the HP alone at the bottom of the dish cone, then they gather and Asrunh.

Russia's geologists have devised a new way to study natural materials, helping to assess the reserves of noble metals.

Russian scientists in the field of geology from Birm National University of Research have reached a modern way to study natural materials, allowing for the evaluation of the reserves of precious metals such as gold and others.

"The essence of the new method is to take into account the existence of noble metals in these materials, even nanometer sizes," said Professor Boris Osvitsky, a professor of nanoscale research at the University of New York. , Which allows access to larger quantities of noble metals.

The new method is based on the use of powerful optical devices, which allow the discovery of the smallest minutes of noble metals in the ore rocks. These minutes are not usually pure gold, but are mixed with other rocks and minerals, separated by chemical methods. Of course, this method can not be compared to the traditional methods used to extract noble metals, but it helps to rationalize resources, in addition to helping to discover the rich deposits of gold, especially as minutes are attracted to each other.

This new method helped geologists discover a reservoir of mercurial gold in the northwest of Perm province. The scientists say the possibility of using the new method to explore the rest of noble metals as well.

Some very handy hints for finding gold items are in this video.

Gold panning is the oldest method of extracting gold from the earth, and it is also the least expensive method. Now, the question is - do people still pan for gold? The answer is a big resounding "YES"! People still pan for gold. Some people still do it as the main source of their income especially in developing countries while some people do it as a hobby.

Some tips to pan for gold Gold panning is not so hard to do - that is if the person is willing to put his back into it and panning for gold should be an enjoyable experience. If somebody is planning to pan for gold, here are some tips.

• Get a good set of gear. Panning for gold is an outdoor activity and investing in good gear is necessary. A portable shovel, a pair of boots, gold pans, a sniffer bottle, and buckets are the basic things that one would need when gold panning. There are also companies that offer a complete gold panning kit, it would also be a good option to purchase a kit and save time looking for individual items.


• Find a good location to pan for gold. Gold is considered a rare earth metal and nowadays it is difficult to find a new spot where gold is present. The best location to start with is a place where there is already a gold panning activity. Most panning activity is done near a stream since panning for gold requires flowing water.


• Dig, classify the dirt, and pan for gold. Shovel some dirt and break it into small pieces so that gold nuggets do not get accidentally thrown away. Next, put the dirt into the gold pan until the pan is 70 per cent full. Filling the pan will completely only wash away pay dirt. Put the pan under the stream, just make sure that the flow of water is slow enough and it does not wash away most of the dirt that is not yet panned. Shake the pan underwater. Doing so would make the gold settle at the bottom of the pan and the lighter materials would go up. Stop from time to time and sweep the dirt and repeat the process until the bottom of the pan is reached. Most of the time, what is left in the pan is a small mass of black dirt or sand with gold flakes. Keep this in a separate container and save it for processing later on and pan for gold again.


• Re-pan the black sand with gold flakes at home. It is not advisable to do this activity outdoors. It is best done during hours of leisure and enjoying the comfort of home. Doing this should take a lot of care so that the maximum amount of gold can be extracted. After panning several times, there will still be a small amount of black sand; this can be separated from the gold by using a magnet since black sand is attracted to a magnet. Once the gold flakes have been separated from the sand, store them in a clean vial

The price of gold is rising up all the time, and it is a good investment, and it is a reason why some people still pan for gold.

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