When in 1939 war did break out between Germany on the one hand, and Britain and France on the other, President Franklin D. Roosevelt dutifully invoked the Neutrality Acts. However, he believed that this was a fundamentally different war from World War I.
Another advanced coal technology is coal gasification, a process in which coal is converted to a gas (called syngas) before it is burned, making it easier to separate CO2 as a relatively pure gas before power is generated.
It is one of the most important steps in coal preparation where the heavy media used in the concentration process is recovered for reuse. This is the stage where magnetite used in the process of coal beneficiation is recovered using magnetic separators.