Inventor

LIU HOUYUAN

US23 patents

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

LIU HOUYUAN

BHP MINERALS INT INC

Heap leaching of nickel containing ore

Method for recovering nickel from high magnesium-containing Ni-Fe-Mg lateritic ore

Process for organic acid bioleaching of ore

Dissolution of platinum group metals from materials containing said metals

Recovery platinum group metals from oxides ores

Boron recovery from geothermal brines

Lithium metatungstate

BHP BILLITON SSM TECH PTY LTD

Consecutive or simultaneous leaching of nickel and cobalt containing ores

Production of ferro-nickel or nickel matte by a combined hydrometallurgical and pyrometallurgical process

Production of ferronickel

Process for enhanced acid leaching of laterite ores

Process for recovery of nickel and cobalt by heap leaching of low grade nickel or cobalt containing material

BHP BILLITON SSM DEV PTY LTD

Production of metallic nickel with low iron content

Atmospheric acid leach process for laterites

Production of high grade nickel product

Selectively leaching cobalt from lateritic ores

Removal of ferric iron as hematite at atmospheric pressure

LIU HOUYUAN

Saprolite neutralisation of heap leach process

Process for atmospheric leaching of laterite ores using hypersaline leach solution

QNI TECHNOLOGY PTY LTD

Atmospheric pressure leach process for lateritic nickel ore

BHP UTAH INTERNATIONAL CORP

Lithium metatungstate

CACERES HERNANDEZ OMAR YESID

Nickel recovery from a high ferrous content laterite ore

BHP BILLITON INNOVATION PTY

Production of titania