How can bismuth be produced from bismuth oxide?

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A labeled periodic table element box for bismuth shows atomic number 83, symbol Bi, atomic weight 208.9804, electron configuration, and properties including solid state, rhombohedral crystal structure, and weakly acidic oxides. — bismuth Properties of bismuth.

Bismuth can be produced from bismuth oxide through a reduction process using carbon.1

Additionally, when bismuth is recovered from oxide or carbonate ores via leaching with concentrated hydrochloric acid, it forms an oxychloride precipitate (BiOCl). This precipitate can then be heated with lime and charcoal to produce metallic bismuth.1