Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7125535 | Method of preparing anhydrous manganese chloride An efficient process for forming anhydrous metal halides includes the reaction of a metal powder with a hydrogen halide under anhydrous conditions. In one example, manganese powder is reacted with hydrogen chloride under anhydrous reaction conditions. ... | 10/24/2006 |
| 6458182 | Process for producing high-purity Mn materials A process for producing a high-purity Mn material comprising the steps of premelting crude Mn at 1250-1500° C. and vacuum distilling the melt at 1100-1500° C. The degree of vacuum during the vacuum distillation ranges from 5×10-6 torr to 10 ... | 10/01/2002 |
| 5759229 | Method for recovering cobalt/manganese/bromine values from residue containing used catalyst A process for recovering valuable components of a residue from a stream of used catalyst, discharged from a plant for the liquid-phase, homogeneously catalyzed oxidation of alkylaromatic compounds under pressure, to produce polycarboxylic aromatic acids. ... | 06/02/1998 |
| 5462579 | Method and apparatus for manufacturing medium or low carbon ferromanganese An object of the present invention is to provide method and apparatus for manufacturing medium or low carbon ferromanganese at reduced running costs. In order to achieve the above object, the present invention resides in charging molten high carbon ferrom... | 10/31/1995 |
| 5240495 | In situ formation of metal-ceramic oxide microstructures In situ formation of metal-ceramic oxide microstructures is carried out on a starting oxide phase containing at least a most noble metallic component (e.g., iron) and a least noble metallic component (e.g. manganese) and subjecting the starting oxide phas... | 08/31/1993 |
| 4975116 | Method for production of metals of ferroalloys by direct reduction The present invention relates to a method for production of metals and/or ferro alloys by prereduction of particulate metal oxide co-current with a reducing gas. Reducing gas having a temperature between 650° and 1100° C. and metal oxide particles are s... | 12/04/1990 |
| 4740240 | Smelting process for recovering metals from fine-grained non-ferrous metal sulfide ores or concentrates In the smelting process of recovering metal from non-ferrous metal oxide ores or concentrates and/or from fine-grained non-ferrous metal sulfide ores or concentrates, particularly from non-ferrous heavy metal sulfide ores or concentrates, any sulfide ores... | 04/26/1988 |
| 4662937 | Process for production of high-manganese iron alloy by smelting reduction There is provided a process for producing a high-manganese iron alloy from a manganese ore and/or a pre-reduced product thereof in a top and bottom blown converter type reaction vessel holding molten iron or a molten manganese iron alloy, together with a ... | 05/05/1987 |
| 4576638 | Process for the production of ferromanganese A process for the production of ferromanganese from iron-containing manganese ores, in which the reduction of the ore, which is mixed with coal and slag-forming constituents, is conducted in a rotary kiln at 1200° to 1350° C. in the presence of a CO-con... | 03/18/1986 |
| 4428771 | Process for the separation of metals from a gaseous mixture formed during reduction Metal is separated from a gaseous mixture formed during reduction of a compound and which contains metal vapour by contacting the compound with an absorbent capable of absorbing the metal vapour and under thermodynamic conditions such that the metal vapou... | 01/31/1984 |
| 4243411 | Reduction of metal sulfides A method for the recovery of a desired metal (e.g., copper) from its sulfide ore by reaction with process metal (e.g., aluminum) capable of forming at least a high sulfide and subsulfide compound. The aluminum subsulfide compound is reacted with the coppe... | 01/06/1981 |
| 4162916 | Process for the treatment of complex metal ores containing, in particular, manganese and copper, such as oceanic nodules The invention relates to a pyrometallurgical process for the treatment of complex metal ores, such as oceanic nodules, containing, in particular, manganese and copper, in which the ores are subjected to reducing fusion to produce a primary slag, containin... | 07/31/1979 |
| 4072504 | Method of producing metal from metal oxides The present invention relates to a method for producing metal from metal oxides, especially iron from iron oxides by a pre-reduction as well as final reduction wherein the pre-reduced oxidic material as well as optional slag formers and optional recircula... | 02/07/1978 |
| 4012493 | Preparation of metal fluorides This invention concerns a process for preparing metal and metal fluoride products. A molten mixture containing a metal oxide, a molten metal fluorinating agent and carbon is reacted to produce a gaseous oxide of carbon, a metal fluorinated product derived... | 03/15/1977 |
| 3951647 | Reduction method for producing manganese metal A process is provided to produce pure elemental metal; such as manganese, by reacting a halide of the elemental metal with aluminum. The halide of the elemental metal is present as a molten pool wherein the temperature at the bottom of the pool is suffici... | 04/20/1976 |
| 3950267 | Process for producing activated carbon High quality activated carbon is produced by charging a mixture of an organic material such as wood, anthracite coal, brown coal, coconut husk, and a material containing metal oxide, metal carbonate or metal hydroxide, such as iron ore and lime, into an i... | 04/13/1976 |
| 3950162 | Reduction to manganese metal using metal transporting compounds This invention provides a process for obtaining substantially pure manganese metal by the reduction of a manganese oxide or a manganese halide by reaction with a subhalide of a transport metal. The transport metal can be aluminum, silicon, or titanium. In... | 04/13/1976 |
