| 摘要 |
<p>PURPOSE: A method and an apparatus for extracting gold from waste circuit boards or gold-processed waste are provided to remarkably increase the purity of extracted metal(especially, gold) to 99.9% using methods for inputting and heating hydrochloric acid and purified water. CONSTITUTION: An apparatus for extracting gold from waste circuit boards or gold-processed waste comprises a furnace(100), a furnace heating unit(300), a hydrochloric acid injection device(210), a nitric acid injection device(220), a filtering device, a metal solidifying device, and a high-temperature heating unit. After the metal solidifying device, the hydrochloric acid injection device, a heating device thereof, a purified water mixing device, and a heating device thereof are applied. A toxic gas removing device comprises a gas collecting part(10), a gas cleaning part(20), a cleaning solution circulation part(30), and a gas discharge part(40).</p> |
