The invention relates to a feedstock composite comprising a metal oxide fraction and a carbonaceous fraction, a binder composition and the use thereof for obtaining the feedstock composite. Further, the invention refers to a method for obtaining the feedstock composite.

A method for producing a fluoride of the present disclosure includes firing a mixture, which includes a first ammonium salt containing Ti and F, a second ammonium salt containing Al and F, and having composition different from that of the first ammonium salt, and a lithium-containing compound, in an inert gas atmosphere. The first ammonium salt is represented by (NH.sub.4).sub.aTiF.sub.a+4, and a satisfies 0<a2. The second ammonium salt is represented by (NH.sub.4).sub.bAlF.sub.b+3, and b satisfies 0<b3. The lithium-containing compound includes at least one selected from the group consisting of lithium fluoride, lithium carbonate, and lithium nitrate.

A method for producing a fluoride of the present disclosure includes firing a mixture, which includes a first ammonium salt containing Ti and F, a second ammonium salt containing Al and F, and having composition different from that of the first ammonium salt, and a lithium-containing compound, in an inert gas atmosphere. The first ammonium salt is represented by (NH.sub.4).sub.aTiF.sub.a+4, and a satisfies 0<a2. The second ammonium salt is represented by (NH.sub.4).sub.bAlF.sub.b+3, and b satisfies 0<b3. The lithium-containing compound includes at least one selected from the group consisting of lithium fluoride, lithium carbonate, and lithium nitrate.