减少酸中的氧化铁含量,使用多烯酸和酸
Gustavo Paiva Ribeiro1, Sandra Cristina Dantas2, Eloízio Júlio Ribeiro1
1Faculdade de Engenharia Química, Universidade Federal de Uberlândia, Avenida João Naves de Ávila 2121, Bloco 1 K, Campus Santa Mônica, Uberlândia, Minas Gerais CEP 38408-144, Brazil.
ACS omega
|January 8, 2026
概括
酸中的铁氧化物降低了肥料的质量. 一种二乙三胺五 (phosphonic methylene) (DTPMP) 溶液有效地去除了氧化铁,使P2O5/Fe2O3比率提高了59%.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 农业化学 农业化学
- 无机化学 无机化学
背景情况:
- 酸对酸肥至关重要,但氧化铁污染物会降低肥料的质量和价值.
- 巴西的酸盐岩石,通常来自火性来源,含有高水平的氧化铁,这给加工带来了挑战.
- 在工业缩过程中完全去除氧化铁是不可行的,因为酸盐的损失.
研究的目的:
- 评估两种化合物用于从酸中去除氧化铁.
- 提高从高污染物矿产中生产的酸的质量.
- 为了使酸盐岩石缩物具有高污染物水平的利用.
主要方法:
- 测试了一种聚烯酸/酸混合物和60%的乙烯胺 (甲) (DTPMP) 溶液.
- 评估了氧化铁去除效率和对P2O5/Fe2O3比率的影响.
- 确定最佳反应条件:55°C,14小时降水时间,5.57%DTPMP (w/w).
主要成果:
- 聚烯酸盐混合物在去除污染物的有效性有限.
- DTPMP溶液作为一种有效的铁化剂.
- Fe2O3含量减少了40%,而P2O5/Fe2O3比率增加了59%.
结论:
- 乙二胺五 (phosphonic methylene) (DTPMP) 是一种有效的化剂,用于从酸中去除铁氧化物.
- 优化的DTPMP处理显著提高了用于肥料生产的酸质量.
- 这种方法为加工高铁酸盐矿石提供了可行的解决方案,提高了经济可行性.
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