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 S3 Refine S3 The Refine S3 is a Compact CUV produced by JAC Motors under the Refine sub-brand. Originally launched on the 2013 Shanghai Auto Show as the Heyue S30 under the Heyue sub-brand, the compact crossover was quickly rebranded to Refine S3 shortly after during the 2014 Beijing Auto Show. Pricing of the Refine S3 was revealed later during the 2014 Chengdu Auto Show with prices ranging from 65,800 yuan to 84,800 yuan. The facelifted Refine S3 crossover was launched on the 2016 Chengdu Auto Show in China. The 2016 facelift includes redesigned grilles, triangle shaped fog lights, new headlights,