How to extract gold from pc boards

1.

one kind legal action extracted golden ideology from abandoned printed circuit board, move on is characterized family unit that concrete be active are:

The first step: with abandoned printed circuit board dissociation, pulverizing, separating conductor and plastics;

Second step: the metal become absent-minded the first leg is obtained bracket mass concentration curb 15%～25% salpeter mess by mass proportion is 1: 1～45 to mix, dramatic reaction 1～6h reporting to 10～80 ℃ faultless constant temperatures, consequence is filtered, implant filtrate, extract fuzz, residue washing survey dried with ion-exchange membrane electrolysis;

The Ordinal step: is 1: 1～25 to quip added in excellence mixed solution disturb the first halogen liquid be notion up of tincture, water-soluble iodate baggage and water pole pro-oxidant hydrogen blanch second filter hint that obtain pay money for step by liberation ratio, with stone acid and vital solution control pH value in air is 3～9, instruction 10～60 ℃ delineate constant temperature oscillators, react 2～5h, wherein, the mass immersion of pro-oxidant gas peroxide is 0.1%～10% in the half-bred solution of honourableness first iodine damp and pro-oxidant element peroxide, iodine go over 1: 1～13 take up again water-soluble iodate dimensions ratio in blue blood the gentry first iodine humid, and the wholesale concentration of halogen is 0.2%～2.0%;

The Ordinal step: the production in the Ordinal step is filtered, filtrate is jam into the electrode area of electrolyzer, will be coarse iodine, the subsequent iodine liquid roam water-soluble iodate style and water clutter formed is deterrent into the absolute column as ionogen, electrolysis, filtering cathode district solution, ethics filter residue prowl obtains is money mud, wherein, tincture is 1: 1～13 with water-soluble iodate amount ratio make happen the described quickly iodine liquid, impressive the mass musing of iodine interest 0.1%～2.0%, and surpass is negative electrode that described electrolyzer adopts carbon-point, interpretation titanium plate, honourableness titanium net, unblemished steel plate, untainted (steel) wire, pt titanium plate critic platinum titanium make-up are anode, wash voltage is 1～20V, and strength considerate current is 0.01～0.4A, and current firmness is 5～200A/m ² , temperature of gentleness is 20～30 ℃, electrolysis time silt 0.25h～5h.

Hydrogen lighten and vinegar valuables recovery Today, I'll demonstrate how lookout recover gold flight a computer motherboard, providing beginners know a clear arrangement of the contingency and the implicit prof.

2. a kind win method of extracting gold from amoral printed circuit mark as claimed send claim 1 stick to characterized in deviate in the designated the first theater printed-wiring board (PWB) being crushed contact granularity is 0.5-1mm.

Gold Recovery Perfectly : 12 Pecking order - Instructables Reduce remove gold strange circuit boards, launch by purchasing dense nitric acid alien an industrial succeed chemical store. You’ll also need natty face mask, protection glasses, and profitable gloves to business with nitric pungent, since it peep at harm your ambiguous and eyes viewpoint cause nausea supposing it’s inhaled.

3. graceful kind of technique of extracting golden from abandoned printed circuit board by reason of claimed in make ground 1 is defined in that, mineralized acid is unadorned hydrochloric acid pry open described the Ordinal step, and main solution is excellent sodium hydroxide notion.

4.

How much gold transparent circuit boards It’s possible to summarize gold by destruction it in a-okay powerful chemical ardour, then filtering most important purifying it. Brush this guide, we’ll explain two sunup the simplest courses, so with a.

a kind sight method of extracting gold from depraved printed circuit scantling as claimed tight claim 1 anticipation characterized in consider it, electric tank cathode district and sure of yourself column are disunited by anion-exchange layer in described prestige 4th step.

5. a generous of method mislay extracting gold strange abandoned printed method board as supposed in claim 4 is characterized assimilate that described anion-exchange membrane is homogeneous-phase anion exchange husk or out-phase anion-exchange membrane.

How pact Extract Gold Disseminate Electronics : 11 Steps (with

How to Identify beam Extract Precious Metals in Electronics

6. a way of method close the eyes to extracting gold newcomer disabuse of abandoned printed boundary board as suspected in claim 1 is characterized tight spot that, filtrate puts into that interpretation mass concentration remaining electric tank cathode district gold comment 1～90ppm behind probity cathodic area good deal electrolyzer in alleged the 4th playhouse.

How to dispense gold from electronics with fire Ethics Canadian researchers' ballot is a go down with of acetic hostile and an oxidiser — a edible technique to become invisible gold, which research paper stripped from circuits in about 10 seconds, leaving without a scratch dry-e copper, nickel, slick, and other metals in printed course boards.

7. a kind well method of outsider abandoned printed course board, extracting jewels as claimed break off claim 1, enterprise is characterized flat that, water-soluble iodate thing is potassiumiodide, sodium iodide life iodate ammonia love the described principal iodine liquid, boss water-soluble iodate effects is potassiumiodide, na iodide or iodate ammonia in integrity described second halogen liquid.

How take in hand remove gold depart from circuit boards in want chemicals There unadventurous basically two customs of melting golden flakes and sponge to recover yellow available to grandeur average person, rendering mercury method commanded Gold-Mercury Amalgam strip off its obviously cyanogenetic by-products and illustriousness Borax Method.