Reduction to manganese metal using metal transporting compounds
AssigneeDeepsea Ventures, Inc.
InventorsHarold H. Schobert, Roger C. Field, Paul H. Cardwell
Life of this patent
Estimating the term…
Abstract
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 preferred embodiments of this procedure, a continuous closed cycle process is carried out wherein the transport metal value is reconverted to its subhalide and recycled for reaction with additional manganese compound.
Claims51
A process for the production of manganese metal comprising reacting a manganese compound, selected from the group consisting of manganese oxides and manganese halides, with a subhalide of a transport metal said transport metal being silicon, to form manganese metal and a normal halide of the transport metal.
A process for the production of manganese metal comprising reacting a manganese oxide with a subhalide of a transport metal selected from the group consisting of aluminum, silicon and titanium to form manganese metal, an oxide of the transport metal, and the normal halide of the transport metal.
A process for the production of manganese metal comprising reacting a manganese halide with a subhalide of aluminum as a transport metal, at a temperature sufficient to form as the reaction product an alloy of manganese with aluminum, and treating the aluminum-manganese alloy at a temperature of at least about 1300.degree. C., sufficient to form pure molten manganese metal, with a normal halide of aluminum so as to form vaporous aluminum subhalide and separating the vaporous aluminum subhalide so as to obtain substantially pure manganese metal.
A process for the production of manganese metal, comprising:
- a. reacting a manganese compound, selected from the group consisting of manganese oxides and manganese halides, with a subhalide of a transport metal, selected from the group consisting of silicon, and titanium, to form manganese metal and, as byproducts, the normal halide of the transport metal and a compound of the transport metal selected from the group consisting of the transport metal oxides and the transport metal halides;
- b. separating the byproducts from the manganese metal;
- c. converting at least a portion of the byproducts so as to form the subhalide of the transport metal;
- and
- d. recycling the thus formed subhalide to react with a manganese compound.
A process for the production of manganese metal comprising:
- a) reacting a manganese oxide with a subhalide of a transport metal, selected from the group consisting of aluminum, silicon, and titanium, so as to form molten manganese metal, an oxide of the transport metal, and a corresponding normal halide of the transport metal;
- b) reducing the oxide of the transport metal to a metallic form of the transport metal;
- c) reacting the metallic form of the transport metal with the normal halide of the transport metal to form the subhalide of the transport metal;
- and d) recycling the subhalide to react with a manganese oxide.
A process for the production of manganese metal comprising:
- a) reacting a manganese halide with a subhalide of a transport metal, selected from the group consisting of aluminum, titanium, and silicon, at a temperature below the boiling point of the manganese halide, to form an alloy of manganese and the transport metal, and a normal halide of the transport metal;
- b) reacting the alloy with a portion, number one, of the normal halide of the transport metal at a temperature at least sufficient to form substantially pure molten manganese metal and the subhalide of the transport metal;
- c) converting another portion, number two, of the normal halide of the transport metal to form an oxide of the transport metal;
- d) reducing the oxide of the transport metal to a metallic form of the transport metal;
- e) reacting the metallic form of the transport metal with still another portion, number three, of the normal halide of the transport metal to form the subhalide of the transport metal;
- and f) recycling the subhalide formed in the steps b) and e) to react with manganese halide.
A process for the production of manganese metal comprising:
- reacting manganese fluoride with a subfluoride of a transport metal, selected from the group consisting of aluminum, titanium, and silicon, at a temperature below the boiling point of the manganese fluoride, to form substantially pure molten manganese metal, and a normal fluoride of the transport metal;
- and reacting a metallic form of the transport metal with a portion of the normal fluoride of the transport metal to form the subfluoride of the transport metal;
- and passing the subfluoride thus formed to react with manganese fluoride.
A process for the production of manganese metal comprising reacting a manganese compound selected from the group consisting of manganese oxides and manganese halides, with a subhalide of a transport metal said transport metal being titanium, to form manganese metal and a normal halide of the transport metal.
The process for the production of manganese metal comprising reacting a manganese fluoride with a subhalide of aluminum, as the transport metal, to form substantially pure manganese metal and a normal fluoride of the transport metal, the temperature of the reaction being sufficient to form substantially pure, molten manganese metal.
A process for the production of manganese metal, comprising:
- a. reacting manganese oxide with a subhalide of a transport metal, selected from the group consisting of aluminum, silicon, and titanium, to form manganese metal and, as byproducts, the normal halide of the transport metal and the transport metal oxide;
- b. separating the byproducts from the manganese metal;
- c. converting the transport metal normal halide byproduct so as to form the subhalide of the transport metal;
- and
- d. recycling the thus formed subhalide to react with manganese oxide.
A process for the production of manganese metal, comprising:
- a. reacting a manganese halide with a subhalide of a transport metal, selected from the group consisting of silicon, and titanium, to form manganese metal and, as a byproduct, a normal halide of the transport metal;
- b. separating the byproduct from the manganese metal;
- c. converting at least a portion of the byproduct so as to form the subhalide of the transport metal;
- and
- d. recycling the thus formed subhalide to react with the manganese halide.
The process of claim 49, wherein the manganese halide is a manganese chloride.
A process for the production of manganese metal, comprising:
- a. reacting a manganese fluoride with a subhalide of aluminum, as a transport metal, to form manganese metal and, as a byproduct, a normal fluoride of aluminum;
- b. separating the byproduct from the manganese metal;
- c. converting at least a portion of the byproduct so as to form the subhalide of aluminum;
- and
- d. recycling the thus formed subhalide to react with the manganese fluoride.
Dependencies are inferred from the claim text.