Environmental protection Energy-saving Low cost
Ewaste precious metal refining system is designed to refine and recover precious metals like gold silver palladiumPd and platinumPt from electronic waste ewaste like circuit boards including CPU RAM pins and other computer components Ewaste is classified as hazardous material therefore should be managed properlyGet Price List
Sand and stone production line is mainly composed of vibrating feeder, jaw crusher, impact crusher, vibrating screen, belt conveyor and centrally electronic control and the designed yield is generally 50-800t/h.
Powder grinding production line is widely used for making powders in the industries of mine, power plant, chemistry, building material, metallurgy, refractory, desulfuration in power station, pitch mixing station and highway and the granularity of the final products can be adjusted in the range of 20-3250 Mesh.
Sand making plant is a professional production line to produce building sand and stone. It can make a variety of rock, sand and gravel, river pebbles into various size construction sand, sandy uniform particle size
Ceramsite production line or ceramsite sand production line belongs to building material equipment. The raw materials of ceramsite sand are mainly some solid wastes like bauxite, shale, city waste, gangue, biological sludge, river sediment and fly ash etc.
Compound fertilizer production line is widely applied to produce compound fertilizer and the capacity ranges from 5,000-200,000 tons/year. It can granulate NPK fertilizer, DAP and other materials into compound fertilizer particles in one processing line.
The flotation separation process also called the flotation separating production line, realizes the mineral particle separation based on the working principle of different physical and chemical properties of the minerals.
Great energy conservation, wide adjustment range, low noise and little dust
Good appearance, excellent sealing, no dust pollution or leakage,few easy-wearing parts
1.5 times or even 2 times larger crushing cavity than that of other crushers, large feeding mouth
Stable performance, little noise pollution , low acicular content, no crackings inside, little wear and long service life
With features of reliable structure, high working efficiency and easy adjustment
VSI sand maker, also called VSI crusher, is the major machine for sand making plant.
Ball mill is the key machine to grind the crushed materials. Ball mill machine is widely used to process cement, silicate product, building material, refractory material, fertilizer, ceramics and glass, etc.
On the basis of domestic mills, fote raymond mill is produced. The raymond roller mill enjoys the features of high working efficiency, low energy consumption, small floor space and small cost.
As a famous Chinese sand dryer supplier and manufacturer, our company has manufactured a lot of advanced sand dryers with quite a reasonable drying machine price in the dryer market.
Get In Touch
Montero et al 2012 studied column leaching of waste printed circuit boards using cyanide solutions and reported low leaching recoveries for gold 48 and silver 52 even at a high cyanide concentration of 4 gl they also noted simultaneous dissolution of copper 77 during leaching
Aug 31 2016 gold is often found on printed circuit boards particularly under keyboards where its durability is an advantage according to the ue researchers about 300 tonnes of the metal are used in
Work procedure for pcb crushing machine printed circuit board crushing flow chart crushing equipment printed circuit chat online read more gold recovery by crushing of circuits boards recovery of gold silver copper and niobium from printed circuit oct 20 2012 recovery of gold silver copper and niobium from printed live chat
1 poundbatch of gold scrap cpu board fingers for gold recovery you are purchasing exactly 1 pound of top quality gold plated circuit board fingers for gold recovery this material was closely trimmed by hand from older military mainframe telecom and industrial circuit boards which used much heavier gold plating for dependability and hard use
Scrap circuit boards gold fingers how to recover gold from electronic scrap gold fingers how to recover gold from electronic scrap details written by goldnscrap if you recall when scrapping computers and other electronic equipment we encounter a lot of peripheral cards which has gold plated male slot contacts the fingers
Leaching of the crushed circuit boards pcbs the application of crushing proved to be an effective method of the pcbs waste pretreatment before the extraction of gold silver and accompanying metals into the leach liquors for leaching au ag and accompanying metals from pcbs wastes the numbers of leaching media were used tab 2
As do greg a and robert s i am in possession of a large number of old computers can anyone tell me if it is worth reclaiming the gold from the circuit boards and connectors and if it is how do i go about it thank you for any information you can give me carl p last name deleted for privacy by editor damascus maryland
The short answer to the question is yesthere is profit in recycling gold and other precious metals from electronic devices the longer answer is that it definitely requires resources to get this resource the old adage it takes money to make
Gold is stripped out from circuits in about 10 seconds leaving the other metals intact foley said iron and cobalt found in printed circuit boards sustainable technique recovers gold
Mar 07 2014 how to extract gold from electronics 07 mar 2014 by helena williams friday 7 march 2014 joseph william theres gold in them thar circuit boards
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 theres about grams ounces of gold in a typical mobile phone handset recovery of this gold
Check the boards to make sure all the gold has been removed and dissolved into the aqua regia acid remove the basket from the acid taking care not to drip acid anywhere the aqua regia is not used up yet so you can use the same acid to dissolve the gold off more boards
May 05 2018 complete process of ic chips incineration how to recycle gold from ceramic packages for ccd cmos cameras ng scrap gold from electronics ewaste duration 1821 archimedes channel 72465 views
Way more trouble and way more of a risk than the tiny amount of gold present the other materials present especially on circuit boards and computer parts pose such a risk to your health and the environment nobody should be messing with them except maybe in the case of major laboratory gold recovery setups that specialize in gold plating
Printed circuit boards pcbs can be found in an y piece of electrical or electronic equipment nearly all electronic items including calculators and remote control units contain large circuit boards an increasing number of white goods as washing machines contains circuit boards for example in electronic timers
Metallurgical contentprocess and equipment for the recovery precious metalscrushing scrap metalgrinding and sizing scrap metalgold flotation from metal scrapsmetallurgical resultsrecovering gold from industrial wastehow is gold recycled from electronicsextract gold and valuable metals from scrap scrap metal recycling equipment and flowsheetcrushing escrap for goldgrinding and
Total recovery of gold contained in computer printed circuit boards leaching kinetics of cu zn and ni 145 in this work we propose to recover the gold contained in the printed circuit boards by means of acid dynamic leaching
Recycling of printed circuit boards intech aug 23 2011 printed circuit boards pcbs can be found in any piece of electrical or electronic in weee mainly due to high quotas of recycling and recovery set by metals approximately 90 of the intrinsic value of most scrap boards is in the gold
Mar 20 2013 with gold selling for about 1580 per ounce that would yield 15800 how about a laptop magann two hundred laptops would yield five troy ounces of gold how much is in an average desktop magann a pc circuit board where the gold is weighs about a pound if you had a ton of those boards you should have 5 troy ounces of gold
Nov 18 2013 salvaging gold from old electronics gold recovery up on instructables for the process that netted him an ounce of gold for three months work after cutting up a few circuit boards
May 14 2017 gold recovery chemicals guide for our beginners if you are new to ewaste recycling and gold recovery then this page is for you in this guide i will tell you some basic things formulas and some tricks the reason for this post is that many people could not understand some acid names formulas and other gold recovery chemicals
May 26 2017 the main circuit board from a sony betamax sonys shortlived laser disk player is so big it looks like a football field alongside most other circuit boards game consoles granted they contain only a small amount of recyclable gold but they were manufactured in such large quantities that they are still easy to find at garage sales
That is right 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 and the value of this can be as high as 300 us dollars
Jun 05 2016 how to extract gold from computer circuit boards your circuit board is a veritable gold mine teaching how to gold extraction process recovery refining how to recover and refine computer
Important to consider ewaste as a secondary supply for the recovery of these metals this paper presents the recovery of au ag cu and nb from pcbs printed circuit boards of discarded computers using leaching column technique the pcbs were crushed with a hammer mill until reaching a particle size between mm to mm