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Medkoo抑制劑在銅礦浮選工藝中的應用
發布時間： 2021-03-25 點擊次數： 919次Medkoo抑制劑種類很多，應用很廣。如催化反應的負催化劑，高分子化合物的阻聚劑，塑料、橡膠、油脂等的抗氧劑，泡沫抑制劑，汽油的抗震劑，防腐蝕的緩沖劑等。如抗氧劑是食品、橡膠及其他有機物質中的氧化反應的抑制劑；食品中加入水楊酸是酸敗的抑制劑；某些聚合物中加入紫外線抑制劑防止因吸收紫外光而變質；有機磷酯是體內膽堿酯酶的抑制劑。某些聚合物的單體在貯存和運輸期間，為了防止其自聚合，需要加入抑制劑。Medkoo抑制劑的實驗原理：酶的活性常受到某些物質影響，有些物質能增加酶的活性，稱為酶的激活劑；另一些物質則降低酶的活性，稱為抑制劑。很少量的抑制劑就會影響酶的活性，而且常具有特異性。酶的催化作用受溫度的影響，在最適溫度下，酶的反應速度最大，大多數動物酶的最適溫度為37－40℃。植物酶的最適溫度為50－60℃。酶對溫度的穩定性與其存在形式有關，有些酶的干燥劑，雖加熱到100℃，其活性并無明顯改變，但在100℃的溶液中卻很快的*失去活性。低溫能降低或抑制酶的活性，但不能使酶失活。礦業抑制劑：浮游選礦時增加礦粒潤濕性而使不易附著于氣泡上的物質。可以是無機化合物如石灰等，或有機化合物如淀粉、膠類等。抑制劑在銅礦浮選工藝中的應用混合段的“壓硫”抑制劑為石灰，加在二段磨礦的泵池內；選銅系統的抑制鋅（以下簡稱壓鋅）的組合抑制劑主要為硫酸鋅+亞硫酸鈉，實行分段添加，先在再磨機添加活性炭和硫化鈉脫藥，然后在銅鋅分離的一次粗選、三次掃選、三次精選作業中分段添加硫酸鋅+亞硫酸鈉；選鋅系統的壓硫抑制劑為石灰。- 下一篇：詳細分析Medkoo化學試劑常見的質量級別
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