Thermodynamic and Thermo-graphic Research of the Interaction Process of the Lisakovsky Gravity-magnetic Concentrate with Hydrocarbons | Zendy

Adam Muhtar | Zendy; E. V. Kochegina | Zendy; Z. S. Khalikova | Zendy; Z. B. Absat | Zendy; A. B. Karimova | Zendy; N. Zh. Rakhimzhanova | Zendy; G. K. Mukicheva | Zendy

Open Access

Thermodynamic and Thermo-graphic Research of the Interaction Process of the Lisakovsky Gravity-magnetic Concentrate with Hydrocarbons

Author(s) -

Adam Muhtar,

E. V. Kochegina,

Z. S. Khalikova,

Z. B. Absat,

A. B. Karimova,

N. Zh. Rakhimzhanova,

G. K. Mukicheva

Publication year - 2015

Publication title -

science and education of the bauman mstu

Language(s) - English

Resource type - Journals

ISSN - 1994-0408

DOI - 10.7463/0615.0780813

Subject(s) - process (computing) , thermodynamics , physics , computer science , programming language

The relevance of this work consists in treatment of complex brown iron ores. Large volumes of off-balance ores are an additional source of production raw materials, however, there is still a problem of their treatment by effective complex methods.

This work shows a possibility of using liquid hydrocarbons as the reducers during thermochemical preparation of brown iron concentrates of the Lisakovsky field to metallurgical conversion and studies the features and main regularities of a roasting process of Lisakovsky gravitymagnetic concentrate in the presence of liquid hydrocarbons.

The initial concentrate was treated by solution of a liquid hydrocarbon reducer (oil: phenyl hydride: water), which was subjected to heat treatment with the subsequent magnetic dressing.

Research by the X-ray phase analysis of reducing products has shown that the main phases of magnetic fraction of a roasted product are presented by magnetite in a small amount hematite and quartz. Generally, only relative intensity of peaks is changed.

The thermodynamic analysis of interaction between the hydrocarbons, which are a part of oil, and iron oxides was carried out. This analysis allowed us to suppose a reducing mechanism for the brown iron ores by liquid reducers.

The data obtained by the thermodynamic analysis are confirmed by experimental results. It is proved that with increasing hydrogen-to-carbon ratio the probability of proceeding reactions of interaction between oxide of iron (III) and liquid hydrocarbon increases.

The differential and thermal analysis allowed us to study a heat treatment process of the Lisakovsky gravity-magnetic concentrate, which is pre-treated by oil solutions, as well as to show a possibility for proceeding the process of interaction between liquid hydrocarbon and ferriferous products of Lisakovsky gravity-magnetic concentrate.

It is found that with increasing temperature in the treated samples of LGMK the hydrogoethite dehydration product interacts with hydrocarbons, which product is strongly magnetic magnetite.

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