“Bulk” Smokeless (“Semi-Smokeless” in England) powders for use in shotguns began in Europe with “Schultze” (nitrated wood granulated with a saturated solution of barium and potassium nitrates) in 1862 (U.S. Patent 38789 of 1863), Volkmann in 1870, and The Explosives Company of Stowmarket, England “E.C.” (made from cotton) in 1882.

Scientific American Supplement, October 4, 1890 “Smokeless Powder”
https://books.google.com/books?id=6d45AQAAMAAJ&pg=PA12308
Wetterven, Walsrode, Maxim, Nobel, and Vieille all mentioned

Poudre B was perfected between 1882 and 1884 at "Laboratoire Central des Poudres et Salpêtres" in Paris. It was first called "Poudre V" for the inventor, Paul Vieille, and renamed "Poudre B" for poudre blanche.