Refining is Refining... gold and platinum at home (ways)

Date:

2020-04-06 08:20:20

Views:

485

Rating:

1Like 0Dislike

Share:

Table of contents:

In the modern world, jewelry are very popular. High demand creates demands on the quality of the products. The development of the jewelry industry is not in place, new ways of processing. One of these methods work with precious metals is refining.

Concept refining

Refining – is a complex process consisting of several stages, resulting in the precious metal, the most refined of impurities. Due to the purification highest sample, which significantly affects the quality of the goods and the price.

refining it

Raw materials for refining

The Most common raw material for refining are gold and silver, at least – platinum.

Also suitable for the procedure:

  • Jewelry scrap;
  • Household and technical components;
  • Coin;
  • Rough placer gold.

Refining – a procedure that is carried out in special plants. Incoming raw material contains many impurities, in the acceptance of it will be melting in powerful furnaces. After that, select the optimum method of refining, and the process starts.

Despite the difficulty of refining – this treatment available to implement at home in the presence of certain skills and tools.

Tools for refining

For the refining in the home, it is important to have special equipment:

  • Crucible. This is the container in which the melted metal, it is able to withstand very high temperatures. Buying a Cup is not difficult, it can be found in specialized stores. To the melting process did not take long and at this stage not having difficulty, it is recommended to purchase a furnace for the crucible. Modern installations are implemented with the already built-in the crucible of different size. Important! The crucible must be clean and used only for processing a single kind of metal. For convenience, you can apply the marking indicating the type of metal used.
  • Tweezers. It needs to be big and strong. Tweezers is used to transfer zinc to the gold.
  • Durable needle with a minimum thickness of 2 mm. It can be steel or titanium. Spoke need for stirring the molten metal, it is sold in any store for jewelers.
  • The Flask of not less than 0.5 L. It is intended for boiling, the glass of which it is made, should be refractory.
  • Electric hob and hood. It is important that the spiral in the tile was closed. The cap need to nakryvanie of the crucible. The design is easy to make your own: soak the asbestos and mix it with plaster in proportion 1:1.

refining gold

Refining of gold. Supplies

To carry out treatments in the home will need the following materials:

  • Borax – clean and designed for a single application, because re-use is not clean and very dirty precious metal;
  • Nitric acid 65-70 %;
  • Hydrochloric acid 36-38 %;
  • Zinc for loosening of gold.

The Initial stage of the refining of gold – melting

Where to start? Refining – a procedure that requires compliance at all stages. Even a small deviation from the sequence will not lead to the desired result.

Gold Refining begins with melting metal. It is important to properly prepare the crucible – it needs to be dry and tense. The wet calcination of the crucible is not allowed to prevent it from cracking.

Into the crucible filled with borax and aligned along its bottom. Top fit the raw material containing gold. Starts the heating process when the temperature increases, the metal acquires a red tint. At this point it is necessary to put borax on top and continue heating.

Loosening zinc

There are two popular ways of refining gold at home: with zinc or copper. The easiest way – the purification of precious metal zinc, it serves as a loosening of the molecules of gold for easy extraction of impurities.

After appearing on the bottom of the crucible dense coma of gold, floating in the storm, you can begin adding zinc. It is placed in the crucible in small portions. Failure to do so will lead to the release of alloy, as gold and zinc have different melting temperatures (they differ in more than 500 degrees). The heating temperature during the addition of zinc is necessary to constantly increase.

After complete dissolution of the zinc alloy should be stirred with a needle and reduce temperature.

Extracting the alloy from the crucible and grinding

To continue the refining of gold, the alloy to be removed from the crucible. The extraction is performed with the help of forceps, area submerged in the water. At this point, the alloy should have a silver color.

refiningat home

Then, in an ordinary mortar is ground of the obtained ingot. The process is simple – it is very fragile. For best result, crushing should be the maximum.

Gold panning

Over the stove is installed the bulb and it is filled with the obtained powder. There is added nitric acid not more than 50 ml.

Reaction should be immediately – begins with the selection of multi-colored pair. This procedure is desirable to perform outdoors – the vapor is very corrosive. After some time (when the reaction is weakened) added another 50-100 ml of acid.

refining gold at home

After completion of the reaction the flask should be slowly heated until the appearance of transparent pair. Heating is terminated and the flask filled with cold water. The resulting solution should shake well – the gold particles will settle to the bottom, and water should be carefully drained, to prevent any loss of gold. The procedure is repeated several times, with each subsequent washing, the water becomes cleaner, total transparency indicates the completion of the stage of washing.

With a clear implementation of technology on the bottom of the flask will remain pure gold, without impurities, and zinc.

Final stage – the receipt of the gold bullion

To the precipitate of gold particles was formed in the more usual gold ingot, it is necessary to melt and bleach.

This gold flakes prorezyvatsja using gauze as they fall brown. Then the gauze is dried and placed in a crucible covered with the cap. The crucible is placed on the tiles – begins the heating process. The result is one of gold and gauze smoldering. For deeper cleaning of gold, you can re-sprinkle it brown.

refining of platinum

After complete solidification of the gold kom is extracted from the crucible and subjected to boiling in bleach (a solution of hydrochloric, nitric acids and water) not more than 5 minutes. Next, it is washed in running water.

Summary – the gold of the higher test.

The Refining of gold with copper are identical to the process of purification with the use of zinc. The difference is that initially melting of the exposed copper and to it is added small amounts of gold. In the process of refining additional hardware required – drums. They are designed for rolling the finished alloy of copper and gold in thin strips that should be cut as small as possible. Then these small particles are placed in a flask and go through the same stages: heating, washing, re-melting and formation of the finished ingot.

Refining of platinum at home

All the platinum metals are rare elements. Most often they are refining takes place in special pools. Rare jewellers-fans clean platinum at home.

But if the need arose – a method of refining selected exclusively chemical. Technology such as the purification of gold.

Safety Rules when carrying out refining

Refining of precious metals held in the home must be performed in compliance with safety rules:

  • The Room in which the refining, should be spacious, not cluttered with foreign objects. This is especially true of flammable items.

methods of refining gold

  • It is Recommended to use the exhaust design, as the chemical fumes are very toxic, and open Windows will cause a draught, interfering in the work.
  • Proceed to the refining need fireproof gloves and an apron. The body must be completely covered up, difficult to burning.
  • Eye to put on special glasses and mouth and nose closed by the respirator.
  • Hair have a tendency to absorb toxic substances, therefore also is desirable to close.

refining gold platinum

The jeweler industry does not stand still, and today it is possible to obtain precious metals of the highest standard, free of impurities. It is important to understand that gold is obtained by refining in the home, prohibited the sale. In most cases fans just experimenting with raw materials, or carry the refining of gold and platinum and other metals illegally. Jewelry making from home made of the gold is prohibited by law, the refining is performed only in special plants or in the jewelry enterprise.


Article in other languages:

AR: https://www.tostpost.com/ar/business/21777-refining-is-refining-gold-and-platinum-at-home-ways.html

BE: https://www.tostpost.com/be/b-znes/39298-affinazh---geta-affinazh-zolata-plac-ny-hatn-h-umovah-sposaby.html

DE: https://www.tostpost.com/de/business/38805-raffinieren-ist-raffinieren-von-gold-und-platin-in-den-huslichen-bedin.html

ES: https://www.tostpost.com/es/centro-de/38567-recuperaci-n-es-la-recuperaci-n-del-oro-y-el-platino-en-el-hogar-medio.html

HI: https://www.tostpost.com/hi/business/23362-refining-is-refining-gold-and-platinum-at-home-ways.html

JA: https://www.tostpost.com/ja/business/21364-refining-is-refining-gold-and-platinum-at-home-ways.html

KK: https://www.tostpost.com/kk/biznes/39667-tazartu---b-l-affinazhdau-altyn-men-platinany-y-zha-dayynda-t-s-lder.html

PL: https://www.tostpost.com/pl/biznes/41382-rafinacji---to-rafinacji-z-ota-i-platyny-w-warunkach-domowych-sposoby.html

PT: https://www.tostpost.com/pt/neg-cios/41042-affinazh-affinazh-de-ouro-e-platina-em-casa-m-todos.html

TR: https://www.tostpost.com/tr/business/36209-affinazh---bu-affinazh-alt-n-ve-platin-evde-yollar.html

UK: https://www.tostpost.com/uk/b-znes/40122-af-nazh---ce-af-nazh-zolota-platini-v-domashn-h-umovah-sposobi.html

ZH: https://www.tostpost.com/zh/business/38934-refining-is-refining-gold-and-platinum-at-home-ways.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

Bulky goods: transportation features, resolution and recommendations

Bulky goods: transportation features, resolution and recommendations

Bulky goods – cargo, the parameters of which exceed the sizes established by the standards. For transport often requires special equipment, and for transportation of special requirements. How to carry these loads and what yo...

The best ultra early varieties of potatoes

The best ultra early varieties of potatoes

On the territory of Russia has grown for over three hundred different varieties of potatoes. They differ not only in fast maturation, but also productivity, purpose, resistant to diseases. Among all the existing groups are very po...

SE

SE "Malyshev Plant", Kharkov: history, production, products

SOE “Malyshev Plant” is known as a major manufacturer of armored vehicles and power plants for tanks, armored personnel carriers and locomotives. In Soviet times was a leading defense firm. Located in Kharkov, Ukraine....

LCD

LCD "Lily": customer reviews

In this paper we consider a modern housing construction in the two capitals of Russia on the example of complexes bearing the same name in Moscow and St. Petersburg. You will learn about the location, about the builders, about the...

Three phase network: a power calculation, wiring diagram

Three phase network: a power calculation, wiring diagram

Not every people understand that such a circuit. In apartments they are 99% single phase, where the current is delivered to the consumer via one wire and returns on the other (zero). Three-phase network is a system of transmission...

Waste disposal - what is it?

Waste disposal - what is it?

waste disposal – the storage and disposal of waste materials in special places or on special objects. To the latter include landfills, complexes, subsoil, structures and so on. Their use must be granted permission by the com...