NL166283C
(en )
1981-07-15
APPARATUS FOR SUPPLYING METAL ORE TO AN ELECTROLYTIC CELL FOR THE PRODUCTION OF METAL.
NL684C
(en )
1915-05-12
Method of Achieving Continuous Operation in Vertical Retort Zinc Ore Extraction
AU575012B
(en )
1913-07-22
The treatment of auriferous selenide ore
AU1070013B
(en )
1914-10-13
An improved process of removing the remnants ofthe charge which remain behind inthe extraction of zinc in vertical muffles, and apparatus for carrying the process into practice
AU549012B
(en )
1913-05-13
Apparatus for the recovery of precious metals
CA150425A
(en )
1913-09-16
Ore roasting process
FR463598A
(en )
1914-02-26
Electrolytic process for the extraction of copper from ores
AU62916B
(en )
1916-09-11
Process of recovering zinc from its ores
FR459194A
(en )
1913-10-29
Method for erecting the contiguous ends of the rails to be welded to each other
AU461912A
(en )
1913-07-01
Processes for extracting metals from ores
AU694012B
(en )
1913-11-05
Improved amalgamation process
FR460233A
(en )
1913-11-26
Improvement in the method of extracting zinc from ores, and particularly zinc and lead ore
GB191300687A
(en )
1913-10-02
Improvements in or relating to Apparatus for Controlling Synchronous Motion Electrically from a Distance.
AU366612A
(en )
1912-04-02
Improvements inthe extraction of metals from their ores
AU721112B
(en )
1913-07-22
Process forthe recovery of zinc and manganese from complex zinc-lead ores
FR456828A
(en )
1913-09-05
Process for the separation of metals in ores
AU575012A
(en )
1913-07-22
The treatment of auriferous selenide ore
AU515112B
(en )
1912-10-01
Improvements in metallurgy of zinc
FR461399A
(en )
1913-12-27
Process for reducing ores to metals
AU493512B
(en )
1912-07-23
Improvemetns relating to the eletrolytic deposition and recovery magnetic metals
FR476218A
(en )
1915-07-20
Advanced process for extracting metals from ores
FR494515A
(en )
1919-09-11
Process to recover zinc from its ores
CA146084A
(en )
1913-02-18
Method of roasting zinc blende
AU801313B
(en )
1913-09-02
Improved process for the treatment of sulphide ores, tailings and other residues, containing lead and zinc
AU518912B
(en )
1913-06-17
Improvements in and relating to the method of and means for producing zinc and other metals of a like nature in an electric furnace