Fine-Dispersed Iron (III) Oxyhydroxides Synthesis: Carbamide Precipitation

Authors

  • Олена Миколаївна Корчуганова Technological Institute of East Ukraine Volodymyr Dahl National University (Severodonetsk) (STI), Ukraine
  • Ольга Леонідівна Овсієнко Technological Institute of East Ukraine Volodymyr Dahl National University (Severodonetsk) (STI), Ukraine
  • Каміла Рамилівна Абузарова Technological Institute of East Ukraine Volodymyr Dahl National University (Severodonetsk) (STI), Ukraine

DOI:

https://doi.org/10.20535/1810-0546.2014.6.35940

Keywords:

Iron oxyhydroxide, Iron (III) salt, Carbamide, Chemical precipitation

Abstract

The conditions of carbamide precipitation synthesis of fine-dispersed iron (III) oxyhidroxides from iron (III) sulphate and nitrate solutions were found out. In order to determine the necessary precipitant amount potentiometric precipitation titration of iron (III) sulphate and nitrate solutions with ammonia and hydrolyzed carbamide solutions were carried out. The results of these researches are expounded. The results of the investigations of precipitates properties, which were obtained from different initial solutions and characterized by different aging time, such as the precipitates phase composition and filtration properties, were presented. It was found, that the precipitation process from iron nitrate solution has less material consumption. Obtained precipitates have nanometer dispersity and the best filtration properties (less precipitant resistivity). The properties and composition changes depended on the aging time were revealed. It was determined that the filtration, physical and chemical properties of precipitates, which were obtained from the iron nitrate solution, are almost independent of the aging time. According to the results of X-ray analysis the crystal size is about 40 nm.

Author Biographies

Олена Миколаївна Корчуганова, Technological Institute of East Ukraine Volodymyr Dahl National University (Severodonetsk) (STI)

Korchuganova Olena M., candidate of sciences (engineering), associate professor, assistant professor

Ольга Леонідівна Овсієнко, Technological Institute of East Ukraine Volodymyr Dahl National University (Severodonetsk) (STI)

Ovsienko Olga L., doctor of engineering, associate professor, professor

Каміла Рамилівна Абузарова, Technological Institute of East Ukraine Volodymyr Dahl National University (Severodonetsk) (STI)

Abuzarova Kamila R., postgraduate student

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Published

2014-12-26

Issue

No. 6 (2014): Engineering

Section

Art

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