Process for the reduction of metal-oxide-bearing material

Process for the reduction of metallic compounds by polyols, and

Process for the refining of a metal sulfide melt

Process for the refining of sulfidic complex and mixed ores or c

Process for the remediation of lead-contaminated soil and waste

Process for the removal of alloying impurities in a slag-covered

Process for the removal of an embedding body from the embedded c

Process for the removal of arsenic compounds from tungsten or mo

Process for the removal of arsenic compounds from tungsten or mo

Process for the removal of contaminating elements from pig-iron,

Process for the removal of impurities from aluminum melts

Process for the removal of impurities from aluminum melts

Process for the removal of mercury from aqueous solutions

Process for the removal of non-ferrous metals from solid ferrous

Process for the removal of rust from cast iron borings and the l

Process for the roasting and chlorination of finely-divided iron

Process for the selective extraction of copper using 4-acyl-(3H)

Process for the selective removal of impurities present in sulfi

Process for the separation and purification of platinum, rhodium

Process for the separation of calcium and nitrogen from lithium