Recovery of niobium pentaoxide and ammonium sulfate from titanium-magnesium production waste

IF 1.3 Q4 ENGINEERING, ENVIRONMENTAL

Journal of Ecological Engineering Pub Date : 2023-11-01 DOI:10.12911/22998993/171647

Almagul Ultarakova, Nina Lokhova, Zaure Karshyga, Azamat Toishybek, Azamat Yessengaziyev, Kaisar Kassymzhanov, Arailym Mukangaliyeva

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Abstract

This study was aimed to investigate the development of a technology for the extraction of niobium pentaoxide and ammonium sulfate from titanium-magnesium production waste, specifically, the sublimates of dust chamber into concentrate in the form of niobium pentoxide. Optimal conditions for washing the niobium hydroxide precipitate by repulpation with hot (60–70°C) distilled water, drying at 200°C for 6 hours were determined. The influence of temperature and duration of the process was studied. Optimal conditions for the dynamic desorption of niobium from saturated ionite (Purolite A100) was determined. The results further indicated that the optimum quantity of the solution of desorption with sulfuric acid was equal to 5.5% and ammonium oxalate was equal to 4%, while temperature and the flow rate of the desorbing solution was 22–27°C and 6 rpm, respectively. The study of the precipitation of niobium from sulfuric acid desorbates showed that the interaction of niobium ions with ammonia takes place at a low rate. The degree of precipitation of niobium hydroxide equal to 99.6% was achieved in 7 hours of agitation of the suspension at a temperature of 22–25°C.

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从钛镁生产废料中回收五氧化铌和硫酸铵

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来源期刊

Journal of Ecological Engineering ENGINEERING, ENVIRONMENTAL-

CiteScore

2.60

自引率

15.40%

发文量

379

审稿时长

8 weeks

期刊介绍： - Industrial and municipal waste management - Pro-ecological technologies and products - Energy-saving technologies - Environmental landscaping - Environmental monitoring - Climate change in the environment - Sustainable development - Processing and usage of mineral resources - Recovery of valuable materials and fuels - Surface water and groundwater management - Water and wastewater treatment - Smog and air pollution prevention - Protection and reclamation of soils - Reclamation and revitalization of degraded areas - Heavy metals in the environment - Renewable energy technologies - Environmental protection of rural areas - Restoration and protection of urban environment - Prevention of noise in the environment - Environmental life-cycle assessment (LCA) - Simulations and computer modeling for the environment