Inventor

HAZEN WAYNE W

US51 patents

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

HAZEN WAYNE W

PHELPS DODGE CORP

Method for improving metals recovery using high temperature leaching

Method for improving metals recovery using high temperature pressure leaching

Method for recovery of metals from metal-containing materials using medium temperature pressure leaching

Method for improving metals recovery using high temperature pressure leaching

System for direct electrowinning of copper

Method for improving metals recovery using high temperature pressure leaching

Method for recovering metal values from metal-containing materials using high temperature pressure leaching

Process for direct electrowinning of copper

Method for improving metals recovery using high temperature pressure leaching

Process for direct electrowinning of copper

Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction

Process for multiple stage direct electrowinning of copper

Process for multiple stage direct electrowinning of copper

Method for recovering metal values from metal-containing materials using high temperature pressure leaching

Method for processing elemental sulfur-bearing materials using high temperature pressure leaching

Method for processing elemental sulfur-bearing materials using high temperature pressure leaching

Method for processing elemental sulfur-bearing materials using high temperature pressure leaching

FREEPORT MCMORAN CORP

Controlled copper leach recovery circuit

Controlled copper leach recovery circuit

Controlled metal leach recovery circuit

Copper recovery circuit

System and method for parallel solution extraction of one or more metal values from metal-bearing materials

Process for multiple stage direct electrowinning of copper

Systems and methods for metal recovery

Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solution extraction

Method for recovering metal values from metal-containing materials using high temperature pressure leaching

Process for multiple stage direct electrowinning of copper

Process for recovery of copper from copper-bearing material using pressure leaching, direct electrowinning and solvent/solution extraction

Silica removal from pregnant leach solutions

Systems and methods for metal recovery

System and method for conversion of molybdenite to one or more molybdenum oxides

FREEPORT MINERALS CORP

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

System and method for parallel solution extraction of one or more metal values from metal-bearing materials

System and method for parallel solution extraction of one or more metal values from metal-bearing materials

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

System and method for parallel solution extraction of one or more metal values from metal-bearing materials

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

Systems and methods for copper recovery via roasting and leaching

RESOURCE TECHN ASS

Process for recovering metal values from jarosite solids

Recovery of alumina values from alunite ore

GILLASPIE JAMES D

Silica removal from pregnant leach solutions

Silica removal from pregnant leach solutions

RAMAN ANAND

System and method for parallel solution extraction of one or more metal values from metal-bearing materials

PHELPHS DODGE CORP

Method for recovery of metals from metal-containing materials using medium temperature pressure leaching

KENNECOTT COPPER CORP

Pressure oxidation process for the production of molybdenum trioxide from molybdenite

FREEPORT-MCMORAN CORP

System and method for parallel solution extraction of one or more metal values from metal-bearing materials

MORGAN JASON M

System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials

SOUTHWIRE CO

Process for recovering aluminum from alunite