| 中低品位磷矿和多种稀硫酸生产过磷酸钙的实践 |
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| 引用本文： | 程剑雨.中低品位磷矿和多种稀硫酸生产过磷酸钙的实践[J].磷肥与复肥,2008,23(5):21-22. |
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| 作者姓名： | 程剑雨 |
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| 作者单位： | 南通大伦化工有限公司,江苏,南通,226005 |
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| 摘 要： | 根据目前磷矿质量下降、价格上涨、生产成本增加的情况,采取多种中低品位磷矿、多种稀硫酸生产过磷酸钙,对45%稀硫酸加热浓缩提到58%,并摸索出优惠的混化工艺条件、不同杂质含量的翻堆熟化条件,使生产成本大大降低,仅2008年1季度使用稀硫酸2874t(折纯),获经济效益86万元。
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| 关 键 词： | 中低品位磷矿 稀硫酸 过磷酸钙 优惠工艺条件 生产成本 |
Production practice of SSP by medium and low grade phosphate rock and various dilute sulfuric acid |
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| CHENG Jian-yu.Production practice of SSP by medium and low grade phosphate rock and various dilute sulfuric acid[J].Phosphate & Compound Fertilizer,2008,23(5):21-22. |
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| Authors: | CHENG Jian-yu |
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| Abstract: | Based on degradation of phosphate rock in quality and increase in prices which result in increase of production costs,SSP is made by utilizing various kinds of medium and low grade phosphate rock and various kinds of dilute sulfuric acids. The optimum mixing process conditions and pile-turning curing conditions with different contents of impurities are explored by using 58% of sulfuric acid concentrated thermally from 45% of dilute sulfuric acid,production costs are reduced significantly. The economic benefit reaches at 860000 RMB Yuan in the first quarter of 2008 with consuming 2 874t of dilute sulfuric acid(in 100%). |
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| Keywords: | medium and low grade phosphate rock dilute sulfuric acid single superphosphate(SSP) optimum process condition production cost |
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