窑灰钾肥是水泥工业的副产品,在硅酸盐水泥生产过程中,逸出的窑气要带出一部分灰尘,俗称水泥窑灰。(1)成分由于水泥的原料及其他方面的差异,成分含量变化较大。窑灰钾肥是一种多成分的肥料,一般含氧化钾8%～15%,其中95%左右为有效钾。窑灰钾肥中的钾以多种形态存在,既有水溶态,又有弱酸溶态,还 Kiln gray potash fertilizer is a by-product of the cement industry. During the production of Portland cement, the kiln gas escaping out of the kiln is partly dusty, commonly known as cement kiln dust. (1) Ingredients Due to the differences of raw materials and other aspects of cement, the content of ingredients varies greatly. Kiln gray potash fertilizer is a multi-component fertilizer, generally containing 8% to 15% potassium oxide, of which about 95% of available potassium. Kiln gray potash fertilizer in a variety of forms of existence, both water-soluble, but also a weak acid solution, also