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

US Patents:

 
# Patent
Number
Patent Title
1 7968065 Process for the recovery of value metals from base metal sulfide ores
2 7803336 Process for the recovery of titanium in mixed chloride media
3 7736606 Process for the recovery of value metals from base metal sulfide ores
4 7329396 Process for the recovery of value metals from material containing base metal oxides
5 6878356 Recovery of zinc from galvanized coatings
6 6730161 Treatment of fly ash
7 6699446 Methods for separation of titanium from ore
8 6500396 Separation of titanium halides from aqueous solutions
9 5290525 Removal of base metals and cyanide from gold-barren CIP solutions
10 4966761 Process for treatment of flyash
11 4798709 Process for treatment of flyash
12 4537628 Recovery of precious metals
13 4358430 Process for treatment of selenium-bearing materials
14 4168967 Nickel and cobalt irregularly shaped granulates
15 4168217 Roast-leach copper recovery
16 4135918 Roast-reductive leach process for copper recovery
17 4049444 Process for treatment of lateritic ores
18 4038066 Method of stripping base metals from fused salts
19 3984232 Thermal upgrading of sea nodules
20 3938989 Arsenic removal from nickel matte