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,
John Miller (North Dakota politician) John Miller (North Dakota politician) John Miller (October 29, 1843October 26, 1908) was a bonanza farmer, business man and American Republican politician in North Dakota. He served as the first Governor of North Dakota from 1889 to 1891, after it was admitted as a state to the union. Born in the Finger Lakes region of New York state, Miller had moved to the Dakota Territory in 1878. With a partner he bought thousands of acres of land for what was called bonanza farming: large-scale farming of wheat as a commodity crop on an industrial scale. The Northern Pacific Railroad connected