Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Ammonium hydroxide stripping of tungsten from organic solvents

Ammonium hydroxide stripping of tungsten from organic solvents

US Patent 4450144 · Granted May 22, 1984

Estimated economic value: $10,801,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Autoclave control mechanisms for pressure oxidation of molybdenite2004
Production of pure molybdenum oxide from low grade molybdeniteconcentrates2004
Apparatus and method for inhibiting the leaching of lead in water2000
Apparatus and method for inhibiting the leaching of lead in water1997
Apparatus and method for inhibiting the leaching of lead in water1996
Purification of APT1990
Chromium recovery process1990
Separation of nickel and cobalt from sulfate solutions by solvent extraction1990
Production of hexagonal cadmium sulfide pigment1989
Production of cobalt and nickel powder1988
Electrochemical dissolution and control of nickel sulfide scale1986
Recovery of alumina values from alunite ore1986