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Patents
 
The following patents and process innovations have been carried out at ORTECH and by PRO principals.
 
Canadian Patents:
 
# Patent
Number
Patent Title
1 2859035 SEPARATION OF IRON FROM VALUE METALS IN LEACHING OF LATERITE ORES
2 2869251 PROCESS FOR EXTRACTION OF RARE EARTH ELEMENTS
3 2869158 CHLORIDE PROCESS FOR THE LEACHING OF GOLD
4 2334511 TREATMENT OF ROASTED METAL SULPHIDE ORES AND FERRITES BY LEACHING WITH PEROXYSULPHURIC ACID
5 2390906 TREATMENT OF FLY ASH
6 1306612 PROCESS FOR TREATMENT OF FLY ASH
7 2772307 PRODUCTION OF HIGH PURITY SILICON FROM AMORPHOUS SILICA
8 2548225 A PROCESS FOR THE RECOVERY OF VALUE METALS FROM MATERIAL CONTAINING BASE METAL OXIDES
9 2513309 PROCESS FOR THE RECOVERY OF TITANIUM IN MIXED CHLORIDE MEDIA
10 2478516 A PROCESS FOR THE RECOVERY OF VALUE METALS FROM BASE METAL SULFIDE ORES
11 2467288 A PROCESS FOR THE RECOVERY OF VALUE METALS FROM MATERIAL CONTAINING BASE METAL OXIDES
12 2390906 TREATMENT OF FLY ASH
13 2347552 RECOVERY OF ZINC FROM GALVANIZED COATINGS
14 2334511 TREATMENT OF ROASTED METAL SULPHIDE ORES AND FERRITES BY LEACHING WITH PEROXYSULPHURIC ACID
15 2289967 METHODS FOR SEPARATION OF TITANIUM FROM ORE
16 2289965 METHOD FOR SEPARATION OF METALS FROM ORE
17 2245036 HYDROMETALLURIGICAL PROCESS FOR RECOVERY OF ZINC
18 2240450 PROCESS FOR THE TREATMENT OF ROASTED METAL SULPHIDE ORES AND FERRITES
19 2237171 METHOD OF PURIFYING GOLD
20 2154608 METHOD OF PURIFYING GOLD
21 2127035 PROCESS FOR SEPARATING FIBRES FROM COMPOSITE MATERIALS
22 2096544 PROCESS FOR SEPARATING FIBRES FROM COMPOSITE MATERIALS
23 2038708 REMOVAL OF BASE METALS AND CYANIDE FROM GOLD-BARREN CIP SOLUTIONS
24 1335665 BIOADSORPTION COMPOSITION, PROCESS FOR PRODUCTION THEREOF AND PROCESS FOR USE THEREOF
25 1306612 PROCESS FOR TREATMENT OF FLYASH
26 1223791 METHOD OF BREAKING A WATER-IN-OIL EMULSION
27 1213150 RECOVERY OF PRECIOUS METALS
28 1125210 RECOVERY OF HYDROCARBONS FROM TAR SANDS
29 1117278 PROCESS FOR TREATMENT OF SELENIUM-BEARING MATERIALS
30 1105295 NICKEL AND COBALT IRREGULARLY SHAPED GRANULATES
31 1091036 ROAST-REDUCTIVE LEACH PROCESS FOR COPPER RECOVERY
32 1086505 ROAST-LEACH COPPER RECOVERY
33 1059768 COPPER-NICKEL SEPARATION PROCESS
34 1056161 PRODUCTION OF COBALT FROM COBALT SULFIDE
35 1055710 NICKEL MATTE REFINING BY OXIDATION
36 1040865 REFINING OF NICKEL MATTES
37 1035545 PRODUCTION OF NICKEL OXIDE
38 1031969 NON-FERROUS METAL RECOVERY FROM DEEP SEA NODULES
39 1023952 TREATMENT OF OXIDE MATERIALS CONTAINING NON-FERROUS VALUES
40 1023560 LEACHING OF OXIDE MATERIALS CONTAINING NON-FERROUS VALUES
41 1017151 PRODUCTION OF NICKELIFEROUS IRON PRODUCTS
42 1013576 GASEOUS SOLUBILIZATION OF REDUCED METAL VALUES
43 1011955 PROCESS FOR TREATMENT OF LATERITIC ORES
44 1002326 ARSENIC REMOVAL FROM NICKEL MATTE
45 997570 METHOD OF STRIPPING BASE METALS FOR FUSED SALTS
46 989179 THERMAL UPGRADING OF SEA NODULES
47 988306 REDUCTION OF NICKEL OXIDE
48 965961 CONCENTRATION OF NICKEL VALUES IN OXIDIZED ORES
 

US Patents:

 
# Patent
Number
Patent Title
1 US 2013-0149219 A1
Separation of iron from value metals in leaching of laterite ores
2
Recovery of nickel in leaching of laterite ores
3
Chloride process for the leaching of gold
4 7968065 Process for the recovery of value metals from base metal sulfide ores
5 7803336 Process for the recovery of titanium in mixed chloride media
6 7736606 Process for the recovery of value metals from base metal sulfide ores
7 7329396 Process for the recovery of value metals from material containing base metal oxides
8 6878356 Recovery of zinc from galvanized coatings
9 6730161 Treatment of fly ash
10 6699446 Methods for separation of titanium from ore
11 6500396 Separation of titanium halides from aqueous solutions
12 5290525 Removal of base metals and cyanide from gold-barren CIP solutions
13 4537628 Recovery of precious metals
14 4358430 Process for treatment of selenium-bearing materials
15 4168967 Nickel and cobalt irregularly shaped granulates
16 4168217 Roast-leach copper recovery
17 4135918 Roast-reductive leach process for copper recovery
18 4049444 Process for treatment of lateritic ores
19 4038066 Method of stripping base metals from fused salts
20 3984232 Thermal upgrading of sea nodules
21 3938989 Arsenic removal from nickel matte