Method for obtaining valuable products
AssigneeKrause-Rohm-Systeme AG
InventorsEberhard Krause, Valentin Rohm
Life of this patent
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Abstract
The invention relates to a method for obtaining valuable products using red mud, which accumulates during the manufacture of aluminum by the Bayer method. The method according to the invention comprises the steps: a) reduction of at least one part of the iron(III) oxide and/or iron(III) hydroxide using at least one reductant that contains at least one hydrocarbon; and b) separation of at least one solid phase of the reaction mixture from at least one liquid and/or gaseous phase, the solid and/or liquid and/or gaseous phase comprising at least one valuable product that at least contains magnetite and the reductant comprising methane and/or natural gas and/or ethanol and/or carbon.
Claims11
Method for obtaining valuable products by means of red mud, which arises in the aluminum production by the Bayer process, including the following steps:
- a) reducing at least one part of an iron(III) oxide and/or iron(III) hydroxide contained in the red mud with at least one reductant, which includes at least one hydrocarbon;
- and
- b) separating at least one solid phase of the reaction mixture from at least one liquid and/or gaseous phase, wherein the solid and/or the liquid and/or gaseous phase includes at least one valuable product including at least magnetite,
- characterized in that
- the reductant includes methane and/or natural gas and/or ethanol and/or carbon.
Dependencies are inferred from the claim text.