Sorption purification of acid storage facility water from iron and titanium on organic polymeric materials

IF 2.4 Q2 MINING & MINERAL PROCESSING
O. Cheremisina, M. Ponomareva, Anastasia Molotilova, Yulia Mashukova, M. Soloviev
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Abstract

Obtaining and production of metals from natural raw materials causes a large amount of liquid, solid, and gaseous wastes of various hazard classes that have a negative impact on the environment. In the production of titanium dioxide from ilmenite concentrate, hydrolytic sulphuric acid is formed, which includes various metal cations, their main part is iron (III) and titanium (IV) cations. Hydrolytic acid waste is sent to acid storage facilities, which have a high environmental load. The article describes the technology of ion exchange wastewater treatment of acid storage facility from iron (III) and titanium (IV) cations, which form compounds with sulphate ions and components of organic waste in acidic environments. These compounds are subjected to dispersion and dust loss during the evaporation of a water technogenic facility, especially in summer season. Sorption of complex iron (III) cations [FeSO4]+ and titanyl cations TiO2+ from sulphuric acid solutions on cation exchange resins KU-2-8, Puromet MTS9580, and Puromet MTS9560 was studied. Sorption isotherms were obtained both for individual [FeSO4]+ and TiO2+ cations and in the joint presence. The values of the equilibrium constants at a temperature of 298 K and the changes in the Gibbs energy are estimated. The capacitive characteristics of the sorbent were determined for individual cations and in the joint presence.
有机高分子材料对酸性储水中铁和钛的吸附净化
从天然原料中获取和生产金属会产生大量的液体、固体和气体废物,这些废物具有各种危害等级,对环境产生负面影响。钛铁矿精矿生产钛白粉过程中形成水解硫酸,水解硫酸中含有多种金属阳离子,其主要成分为铁(III)和钛(IV)阳离子。水解酸废物被送往酸储存设施,这是一个高环境负荷。本文介绍了在酸性环境中,铁(III)和钛(IV)阳离子与硫酸盐离子和有机废物组分形成化合物,通过离子交换处理酸性储存设施废水的技术。这些化合物在水技术设施的蒸发过程中受到分散和粉尘损失,特别是在夏季。研究了cu -2-8、Puromet MTS9580和Puromet MTS9560阳离子交换树脂对硫酸溶液中铁(III)阳离子[FeSO4]+和钛离子TiO2+的吸附性能。分别得到了[FeSO4]+和TiO2+阳离子的吸附等温线。估计了298k时的平衡常数和吉布斯能的变化。测定了吸附剂在单独阳离子和联合存在下的电容特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Mining Institute
Journal of Mining Institute MINING & MINERAL PROCESSING-
CiteScore
7.50
自引率
25.00%
发文量
62
审稿时长
8 weeks
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