This is the process of crushing a solid into small pieces. It is widely used in the chemical and smelting industries for purposes such as increasing the surface area of the solid to increase the reaction rate and dissolution rate and improve process efficiency, breaking down multi-component ores to improve separation of useful components, and increasing the degree of mixing to make them easier to homogenize. Impact, shear, friction, etc. are used as external forces in crushing, and typical crushing machines include ball mills and crushers. Source: Morikita Publishing "Chemical Dictionary (2nd Edition)" Information about the Chemical Dictionary 2nd Edition |
固体を細かく砕く操作をいう.固体の表面積を大きくして反応速度や溶解速度などを高めてプロセスの効率をよくする,多成分からなる鉱石を微細化して有用成分の分離をよくする,混合度を高め均一にしやすくする,などの目的で,化学工業,製錬工業などに広く行われている.粉砕には,衝撃,せん断,摩擦などが外力として用いられ,粉砕機としては,ボールミルやクラッシャーなどが代表的なものである. 出典 森北出版「化学辞典(第2版)」化学辞典 第2版について 情報 |
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