Inventor
NICOLAS FRANCOIS
FR11 patents
⚠️ This page may combine multiple inventors who share the name “NICOLAS FRANCOIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PECHINEY ALUMINIUM
5 patentsUS4597952AJul 1, 1986
Purification of solutions of sodium aluminate in the Bayer cycle by the removal of sodium oxalate
PECHINEY ALUMINIUM26 citations88
US4423009ADec 27, 1983
Carbonate, sulphate and hydroxide or hydrogen carbonate
PECHINEY ALUMINIUM8 citations72
US4423013ADec 27, 1983
Process for the purification of solutions containing alkali metal carbonate, sulphate, hydroxide or possibly hydrogen carbonate, and one at least of the metals vanadium, uranium and molybdenum
PECHINEY ALUMINIUM3 citations61
US4296073AOct 20, 1981
High temperature attack of ores by means of a liquor essentially containing a soluble bicarbonate
PECHINEY ALUMINIUM4 citations59
US4400359AAug 23, 1983
Process for the hot oxidized attack on a uraniferous ore by a concentrated alkaline liquor with simultaneous uranium precipitation
PECHINEY ALUMINIUM1 citations51