About Us

MINEVIK Machinery is a leading and pioneering enterprise with the most advanced international level in R&D, manufacturing and selling of large-scale crushing & screening plants and beneficiation plants.

large-scale crushing & screening plants and beneficiation plants.

All of our equipment have got ISO international quality system certification, European Union CE certification and Russian GOST certification.

  • In central China-Zhengzhou, covering 140 thousand square meters
  • Win-win cooperation and create more value to customers
  • Exported large quantities and high-end mobile crushing plant and milling equipments to Russia, Kazakhstan, Indonesia, Ecuador, South Africa, Nigeria, Turkey more than 100 countries .

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Our Products

AS a leading global manufacturer of crushing and milling equipment, we offer including quarry, aggregate, grinding production and complete stone crushing plant. We also supply individual crushers and mills as well as spare parts of them.

Services

Our goal is to guarantee the excellent operation equipment with high safety for our customers and minimize the downtime of the machine by predictive maintenance. Kefid service and original accessories can be 100% trusted at the time of maintenance.

SERVICE AND SUPPORT

Minevik service and original accessories can be 100% trusted at the time of maintenance.

ACCESSORIES CENTER

striving to enable customers to get the parts in the nearest place.

SALES MARKET

Our sales market is spread all over more than 100 countries and regions

gold extraction from circuit boards

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How to Extract the Gold From Computer Circuit Boards | Our

Apr 12, 2017· Computers and other electronic devices contain gold and other precious metals in their circuit boards. As consumers upgrade their electronic gadgets, the precious metals remain trapped in piles of waste. There’s about 0.2 grams (0.007 ounces) of gold in a typical mobile phone handset. Recovery of this gold

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Step-by-Step Gold Recovery From Circuit Boards

Jan 21, 2014· Printed circuit boards inside electronic devices use a small amount of gold on key connections because of its conductivity and other properties. While many circuit boards are simply discarded, some companies--and even individuals--have turned to gold reclamation to strip circuit boards of their small quantities of gold.

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How do you remove gold from circuit boards without chemicals?

Feb 24, 2020· Nitric acid was used for the extraction of gold. Place radio components in a glass jar, fill it with nitric acid and heated. Herein, how do you remove precious metals from circuit boards? Method 1 Removing Gold Using Nitric Acid. Get protective gear. Purchase concentrated nitric acid. Put your circuit boards in a glass container.

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A better way to mine gold from old electronics

Aug 31, 2016· The new process to remove it uses a mild acid as opposed to harsher chemicals such as cyanide or mercury that are currently used to extract gold. First, printed circuit boards are

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Is Extracting Gold from Printed Circuit Boards Possible

Extracting gold from a printed circuit board is definitely possible but the amount of the gold in the PCB has to be evaluated first. The process involves a number of steps which have to be carried out carefully in order to get the desired results. There are some instruments and acids involved in the process. Necessary precautions must be taken before starting the procedure.

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How to Extract Gold From Electronics : 11 Steps (with

In this Instructable, I will show you how to extract gold from computers using products most people have lying around in their homes. The way I extract the gold is relatively straight-forward and pretty easy, but the chemicals used are very dangerous and should not be performed without proper knowledge and equipment. This process is not supposed to be lucrative.

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Scientists find a new way to recover GOLD from mobile

Aug 31, 2016· The method involves placing the circuit boards into mild acid to dissolve all the metal parts. An oily liquid which contains a chemical compound is then added, which only extracts the gold.

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How do you remove gold from circuit boards without chemicals?

Feb 24, 2020· Nitric acid was used for the extraction of gold. Place radio components in a glass jar, fill it with nitric acid and heated. Herein, how do you remove precious metals from circuit boards? Method 1 Removing Gold Using Nitric Acid. Get protective gear. Purchase concentrated nitric acid. Put your circuit boards in a glass container.

More
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Recovering Gold and Precious metals from Circuit Boards

Most circuit boards contain all sort of precious metals: Gold, Silver, Palladium and sometimes Platinum. All circuit boards contain base metals: Copper, Nickel, Aluminum, Zinc, Tin, Lead and Iron. As well, small amount of hazardous elements like Beryllium, Barium and others that has to be considered while processing scrap circuit boards.

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How to Extract Gold from Computer Circuit Boards?

2000. A. The amount of gold you will get from 4 tons of circuit boards may not be worth the effort and cost. There are at least two ways to get the gold: (1) cut off the tabs and strip them in cyanide (2) burn the entire collection, smelt the copper and gold out of the ash, then extract the gold from the copper.

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How to extract gold from electronics | WIRED UK

Mar 07, 2014· There's gold in them thar circuit boards -- laptops, phones, cameras and other devices use the precious metal to connect components, and it can be extracted relatively simply.

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Scientists find a new way to recover GOLD from mobile

Aug 31, 2016· The method involves placing the circuit boards into mild acid to dissolve all the metal parts. An oily liquid which contains a chemical compound is then added, which only extracts the gold.

More
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New polymer easily captures gold extracted from e-waste

Jun 28, 2020· Subject some circuit boards to an acid treatment to release its materials and this stuff will gather up all the dissolved gold. And after it lets go of that gold, it’s ready to be used again.

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How to extract gold from electronics | WIRED UK

Mar 07, 2014· There's gold in them thar circuit boards -- laptops, phones, cameras and other devices use the precious metal to connect components, and it can be extracted relatively simply.

More
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How to Extract Gold from Computer Circuit Boards?

2000. A. The amount of gold you will get from 4 tons of circuit boards may not be worth the effort and cost. There are at least two ways to get the gold: (1) cut off the tabs and strip them in cyanide (2) burn the entire collection, smelt the copper and gold out of the ash, then extract the gold from the copper.

More
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How to Remove Gold from Electronic Circuit Contacts

A single circuit board cannot get you much gold but, if you have number of circuit boards then your chances of getting gold increases. While extracting the gold the right tool must be used. The circuit should be removed carefully and placed in a clean place before extracting the gold. The steps to be followed are as follows.

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Gold extraction process

Computer motherboard and other electronic circuit boards can also contain rich gold content made up of gold-plated circuit traces, edge fingers, connectors, Integrated Circuits, transistors, & memory chips. There is very little profit from extracting the gold content found in most computer chips and electronic components yourself unless you

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New process extracts gold from electronics The Johns

However, extracting gold from electronics is difficult, and the amount of recovered gold from a single device is very low. Gold is a very non-reactive metal, which forces companies to use chemicals such as sodium cyanide to dissolve and extract gold. In their experiments, gold from electronic circuit boards were dissolved in around 10

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New polymer easily captures gold extracted from e-waste

Jun 28, 2020· Subject some circuit boards to an acid treatment to release its materials and this stuff will gather up all the dissolved gold. And after it lets go of that gold, it’s ready to be used again.

More
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How to Make Money Recovering Scrap Gold from Electronics

As a matter of fact, a ton of computer circuit board and micro chips contains as much as 800 times more gold than what is obtainable in one ton of gold. The good thing about this process is that it would only cost you about 20 US Dollars to recover 1oz. worth of scrap gold

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How Much Gold Can You Refine From a Bunch of Old Computer

Mar 01, 2016· Gold is a incredible conductor of electricity, which is why it's used as a coating in a lot of electronics, especially parts where data transfer happens like RAM.

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How to recover gold from computer scrap after you have

The mixture of vinegar (dilute acetic acid) and peroxide will leave gold untouched. The only chemical mixture that dissolves gold is aqua regia, a mixture of concentrated nitric and hydrochloric acids. An answer to the reaction of gold with aqua r...

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Cornstarch Replaces Cyanide In Gold Extraction | Popular

Gold, precious forever but especially lately, is a tricky metal. Bound up in consumer electronics, jewelry and the ores that it comes from, gold is difficult to extract, and most modern processes

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Researchers find faster, cleaner way to extract gold from

Feb 04, 2016· The Canadian researchers' alternative is a solution of acetic acid and an oxidant — a nontoxic technique to dissolve gold, which is stripped from circuits in about 10 seconds, leaving intact copper, nickel, iron, and other metals in printed circuit boards. Dive insight: Traditional extraction costs $1,520 for one kilogram of gold.

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Enhancement of simultaneous gold and copper extraction

Jan 01, 2015· In this research simultaneous gold and copper recovery from computer printed circuit boards (CPCBs) was evaluated using central composite design of response surface methodology (CCD-RSM). To maximize simultaneous metals’ extraction from CPCB waste four factors which affected bioleaching were selected to be optimized.

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Extracting Gold from Ceramic IC Chips — Reclaim, Recycle

May 27, 2014· Extracting Gold from Ceramic IC Chips May 27, 2014 / Barry Lenson. A Brief History of Circuit Boards and the Gold They Contain Watch the Gold You Can Recycle from Circuit Boards Pile Up in these Videos Some Fascinating – and Potentially Profitable – Facts You Never Knew about Refining Gold

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How to Make Flux for Gold Refining | Our Pastimes

Refining gold from ore or concentrates is done during the smelting process. During this process, flux is used to dissolve contaminates such as metal oxides from the gold. The flux is added to a crucible with the gold that is then melted in a furnace. You can make flux for gold

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