Inventor

HUGGINS DALE K

18 patents

⚠️ This page may combine multiple inventors who share the name “HUGGINS DALE K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HUGGINS DALE K

AMAX INC

Recovery of V2 O5 and nickel values from petroleum coke

Ammonium octamolybdate-alpha

Process for recovering molybdenum and copper from sulfide concentrates

Roast-neutralization-leach technique for the treatment of laterite ore

Process for the production of molybdenum dioxide

Chemical leaching of coal to remove ash, alkali and vanadium

Solvent extraction of tungsten from aqueous tungstate solutions

Treatment of sodium tungstate leach liquor containing dissolved silica, phosphorus, and fluorine impurities

Autoclave soda digestion of scheelite concentrates

Autoclave soda digestion of scheelite concentrates with feedback control

Autoclave soda digestion of refractory scheelite concentrates

Combined autoclave soda digestion of wolframite and scheelite

Autoclave tungstate upgrading of scheelite concentrates

Separation of trace molybdenum from tungstate solutions

Chemical treatment of low-grade wolframite concentrate having high Mo/WO3 ratio

Removal of hexavalent selenium from nickel, cobalt or copper sulfate solution

Process for conditioning tungsten concentrates

ALLIED CHEM

Recovery of copper from copper sulfide ores containing copper and iron