A Bi12XO20 powder, wherein X represents at least one kind of element selected from the group consisting of Si, Ge, and Ti, is produced by a process comprising: a step (A) of preparing a solution containing the Bi element and a solution containing the X element, a step (B) of feeding the solution containing the Bi element and the solution containing the X element into a mixing section, and preparing a mixed liquid in the mixing section, a step (C) of discharging the mixed liquid from the mixing section, and a step (D) of feeding the mixed liquid, which has been discharged from the mixing section, into a reaction section located at the exterior of the mixing section, and allowing the mixed liquid to undergo reaction in the reaction section. The steps (B) and (C) are performed in parallel.
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机译:通过以下方法制备Bi 12 Sub> XO 20 Sub>粉末,其中X表示选自Si,Ge和Ti的至少一种元素。制备含有Bi元素的溶液和含有X元素的溶液的步骤(A),将含有Bi元素的溶液和含有X元素的溶液加入混合部中的步骤(B)混合部分中的液体,从混合部分中排出混合液体的步骤(C)和将从混合部分中排出的混合液体送入位于外部的反应部分中的步骤(D)在混合部分中,使混合液体在反应部分中进行反应。步骤(B)和(C)并行进行。
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