1) Chemical process 2) French invention
Found on
https://www.crosswordclues.com/clue/leblanc-process
United States Department of Defense, http://www.defenselink.mil/home/photoessays/2005-01/p20050111a7.html ...
Found on
http://en.wikipedia.org/wiki/Leblanc_Process
The Leblanc process was an early industrial process for the production of soda ash (sodium carbonate) used throughout the 19th century, named after its inventor, Nicolas Leblanc. It involved two stages: production of sodium sulfate from sodium chloride, followed by reaction of the sodium sulfate with coal and calcium carbonate to produce sodium ca...
Found on
http://en.wikipedia.org/wiki/Leblanc_process
(from the article `Leblanc, Nicolas`) French surgeon and chemist who in 1790 developed the process for making soda ash (sodium carbonate) from common salt (sodium chloride). This process, ... ...for manufacturing alkali. The prize for soda ash was awarded to the Frenchman Nicolas Leblanc, who in 1791 patented a process for converting .....
Found on
http://www.britannica.com/eb/a-z/l/27
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