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在硝酸磷肥的酸解工序中 ,浓度 58% (质量分数 ,下同 )的新鲜硝酸和磷矿粉在酸解槽中反应产生大量的酸不溶物。有效分离酸不溶物成为硝酸磷肥后续工艺正常进行的先决条件。国外配套的酸不溶物处理系统由于种种原因 ,不能满足生产要求。1 996年开始 ,我厂对酸不溶物处理系统进行
In the nitrophosphate acid hydrolysis process, the concentration of 58% (mass fraction, the same below) of fresh nitric acid and phosphate rock in the acid hydrolysis tank reaction produces large amounts of acid insoluble. Effective separation of acid-insoluble nitrate nitrophosphate follow-up process to proceed normally as a prerequisite. Foreign supporting acid insoluble processing system due to various reasons, can not meet the production requirements. Since 1996, our factory has carried out the acid-insoluble treatment system