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,
Refine S5 Refine S5 The Refine S5 is a Compact CUV that was produced by JAC Motors under the Refine sub-brand and positioned above the slightly smaller Refine S3. Previewed by the JAC Eagle SII concept on the 2012 Beijing Auto Show and originally launched on the 2012 Guangzhou Auto Show as the JAC Eagle S5, the compact crossover was quickly rebranded to Refine S5 during the facelift shortly after to fit into the later established Refine sub-brand. Pricing of the JAC Eagle S5 ranges from 89,800 yuan to 135,800 yuan, while the pricing of the facelifted Refine S5 ranges from 89,500