Wohlwill process Wohlwill process The Wohlwill process is an industrial-scale chemical procedure used to refine gold to the highest degree of purity (99.999%). The process was invented in 1874 by Emil Wohlwill. This electrochemical process involves using a cast gold ingot, often called a Doré bar, of 95%+ gold to serve as an anode. Lower percentages of gold in the anode will interfere with the reaction, especially when the contaminating metal is silver or one of the platinum group elements. The cathode(s) for this reaction are small sheets of pure (24k) gold sheeting or stainless steel. Current is applied to the system,
Past in Different Ways Past in Different Ways Past in Different Ways is the fourth solo album of vocalist Michael Kiske. It features acoustic renditions of songs written by Kiske during his time in Helloween and one new track. This came as a surprise to fans, considering Kiske's desire to leave the world of Helloween and heavy metal behind him. The album received a rather mixed critical support. Most reviewers were excited about the new acoustic arrangements and especially about Kiske's still powerful voice and wide vocal range. Other reviews criticized the album for the fact that it lacked any major innovative arrangements. According