Latest News:  
Beijing   Sunny    1 / -10   City Forecast

People's Daily Online>>China Society

College student extracts gold from scrap CPUs

By Li Qian (Shanghai Daily)

16:59, January 04, 2012

A university student successfully extracted pure gold from scrap CPUs. His feat attracted wide attention on the Internet and earned him the title of "modern alchemist."

Li Dianwu is a senior of Nankai University in Tianjin, north China with a major in chemistry. He dissolved useless CPUs in a solution of sulfuric acid, thiourea and hydrogen peroxide, and filtered the solution with activated carbon.

Then he put the metal-filled activated carbon in a muffle furnace and extracted 65 milligrams of gold at a temperature of 1,100 degrees Celsius, the Shanghai Morning Post reported today.

The three pinhead-sized beads are 99.99 percent pure gold, Li told the newspaper after he posted 20 photos of his gold extracting process on the popular social networking website, renren.com, last month. His post immediately drew more than 60,000 viewers.

Though Li's process is not poisonous, a chemical expert surnamed Ye told people not to follow his example because the method requires professional knowledge and equipment.

Email|Print|Comments(Editor:张茜)

Leave your comment0 comments

  1. Name

  

Selections for you


  1. Smiles as kids head home for holidays

  2. Sales boom in gold jewelry market

  3. Couple's 25-year garrison on island

  4. China's 12th National Winter Games

Most Popular

Opinions

  1. It is the China naysayers who are doomed to fail
  2. Common development with neighbors
  3. Japan's case of flawed priority
  4. Move to send 'alarming signal' across Asia
  5. EU's airline carbon tax may backfire
  6. Asian countries refuse to 'take side'
  7. US uses 'hedging strategy' to deal with China's rise
  8. What is behind US 'Return-to-Asia' strategy?
  9. China's GDP growth may slow to 8 pct in 2012
  10. China's economy not to suffer a hard landing

What's happening in China

Stamp for Year of Dragon slated for sales throughout China

  1. Taiwan OKs online purchase with UnionPay card
  2. Risk high on agenda of financial meeting
  3. New methods of valuing cultural assets
  4. Boy is first to be airlifted for medical care
  5. Couple's 25-year garrison on island

PD Online Data

  1. Traditional Mooncakes
  2. About Mooncakes
  3. History of Mooncakes
  4. Modern Mooncakes
  5. Legends of Mid-Autumn Festival