Wang Rui-xian2026-03-222026-03-222008http://en.cnki.com.cn/Article_en/CJFDTOTAL-LFYF200804013.htmhttps://andeanlibrary.org/handle/123456789/64418As producing the powdered MAP from sludge phosphoric acid,the appearance quality of product,the uniformity of particle and color are not ideal at present.With the ammonium phosphate production in Three Circles Company,the influencing factors in production are analyzed from raw material,process index,operation,equipment selection,etc.The corresponding counter measures are proposed.enPhosphoric acidRaw materialPulp and paper industryAmmonium phosphateQuality (philosophy)Production (economics)Process (computing)PhosphateProcess engineeringProduct (mathematics)article