| |
 |
|
Class Information
Number: 75/416
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Processes > Producing or treating free metal > At 300 degrees c or greater (e.g., pyrometallurgy, etc.) > Combined with step at less than 300 degrees c using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.)
Description: Process wherein a step at over 300 degrees C is combined with a step at less than 300 degrees C the latter step employing a nonmetallic material which is a liquid under standard conditions. The steps may take place in any order.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7597738 |
Production of ferro-nickel or nickel matte by a combined hydrometallurgical and pyrometallurgical process |
Oct. 6, 2009 |
| 7572418 |
Process to obtain titanium concentrates with high contents of TiO.sub.2 and low contents of radionuclide elements from anatase mechanical concentrates |
Aug. 11, 2009 |
| 6797195 |
Method for recovering and separating metals from waste streams |
Sep. 28, 2004 |
| 6379416 |
Method and device for melt-treating incineration residue containing salts |
Apr. 30, 2002 |
| 6274045 |
Method for recovering and separating metals from waste streams |
Aug. 14, 2001 |
| 6270679 |
Method for recovering and separating metals from waste streams |
Aug. 7, 2001 |
| 6254782 |
Method for recovering and separating metals from waste streams |
Jul. 3, 2001 |
| 6238633 |
Process for preparing calcium aluminate from aluminum dross |
May. 29, 2001 |
| 6080224 |
Method for processing waste containing metal contaminants using a reducing agent |
Jun. 27, 2000 |
| 5993511 |
Process of preparing nickel cermet |
Nov. 30, 1999 |
| 5993512 |
Method and system for recycling byproduct streams from metal processing operations |
Nov. 30, 1999 |
| 5908559 |
Method for recovering and separating metals from waste streams |
Jun. 1, 1999 |
| 5849063 |
Production of direct reduced iron and/or pig iron from industrial waste streams |
Dec. 15, 1998 |
| 5759231 |
Method for processing metal chips and/or metal dust |
Jun. 2, 1998 |
| 5755853 |
Process for the treatment of solid residues containing metals, in particular residues from the cleaning of household garbage incineration smoke |
May. 26, 1998 |
| 5753125 |
Method for recovering and separating metals from waste streams |
May. 19, 1998 |
| 5749939 |
Melting of NI laterite in making NI alloyed iron or steel |
May. 12, 1998 |
| 5725632 |
Method for processing and utilizing metalliferous presipitates from the gas cleaning phase in thermal waste treatment |
Mar. 10, 1998 |
| 5419882 |
Method for the removal of thallium |
May. 30, 1995 |
| 5364441 |
Cotreatment of sewage and steelworks wastes |
Nov. 15, 1994 |
| 5158602 |
Method and apparatus for separating copper from chromite |
Oct. 27, 1992 |
| 5129945 |
Scrap treatment method for rare earth transition metal alloys |
Jul. 14, 1992 |
| 5123957 |
Method for manufacturing low carbon ferrochrome with high chromium content |
Jun. 23, 1992 |
| 5102453 |
Aluminum dross recovery process |
Apr. 7, 1992 |
| 5084128 |
Low-temperature synthesis of group III-group V semiconductors |
Jan. 28, 1992 |
| 5032175 |
Process for removing impurities from flue dusts |
Jul. 16, 1991 |
| 5032176 |
Method for manufacturing titanium powder or titanium composite powder |
Jul. 16, 1991 |
| 4834849 |
Metal recovery method and apparatus |
May. 30, 1989 |
| 4826666 |
Method of preparing metal carbides and the like and precursors used in such method |
May. 2, 1989 |
| 4812167 |
Process for recovering metallic gallium from gallium compound-containing waste |
Mar. 14, 1989 |
| 4732827 |
Process for producing electrolyte for redox cell |
Mar. 22, 1988 |
| 4561887 |
Process for recovering metals from solution through solvent extraction and pyrometallurgical reduction |
Dec. 31, 1985 |
| 4468248 |
Process for making titanium metal from titanium ore |
Aug. 28, 1984 |
| 4448886 |
Biodispersions |
May. 15, 1984 |
| 4436550 |
Process for recovery of aluminum from carbonaceous waste products |
Mar. 13, 1984 |
| 4406696 |
Process for recovering of metals from solutions of metal salts |
Sep. 27, 1983 |
| 4365993 |
Recovery of coated aluminium scrap |
Dec. 28, 1982 |
| 4331472 |
Metal removal apparatus and method |
May. 25, 1982 |
| 4289530 |
Symmetrical quaternary ammonium compounds and their use in heavy metals recovery |
Sep. 15, 1981 |
| 4193792 |
Process for Class IIIB metals ore reduction |
Mar. 18, 1980 |
| 4177064 |
Metal recovery process and method |
Dec. 4, 1979 |
| 4150975 |
Process for producing metallic chromium |
Apr. 24, 1979 |
| 4115113 |
Process for the preparation of molybdenum based alloys by sintering |
Sep. 19, 1978 |
| 4090871 |
Process for the recovery and purification of germanium from zinc ores |
May. 23, 1978 |
| 4053303 |
Method of carbothermically producing aluminum-silicon alloys |
Oct. 11, 1977 |
| 4046558 |
Method for the production of aluminum-silicon alloys |
Sep. 6, 1977 |
| 4045216 |
Direct reduction of molybdenum oxide to substantially metallic molybdenum |
Aug. 30, 1977 |
| 4029498 |
Process for treating manganese nodules |
Jun. 14, 1977 |
| 4009247 |
Production of metal carbides |
Feb. 22, 1977 |
| 3999981 |
Production and recovery of metallic carbides from ores and concentrates |
Dec. 28, 1976 |
|
|
|
