SU1393794A1 - Method of producing troilite - Google Patents

Abstract

The invention relates to methods for producing iron sulfide, which is not used as a cathode material in the manufacture of chemical current sources. The purpose of the invention is to increase the yield of the target product and reduce energy consumption. The method is carried out as follows. Pyrite and iron powders are mixed in a mass ratio of 1: (0.43- 0.46) and calcined at a temperature of 550-600 ° C without air access for 60-90 minutes. After cooling, troilite FeS is obtained. The yield of the product. 1 z.p, f-ly, I tab.

Description

with with with with with

four

The invention relates to chemical technology of inorganic substances ii (ecTB, in particular to methods for the production of (iron sulfide,

The purpose of the invention is to increase the yield of the target product and reduce energy consumption,

The method is carried out as follows:

Pyrite and iron powders are taken in a mass ratio of 1: (0.43–0.46) and calcined at temperatures of .50– without air access for

The proposed method in comparison with the known allows to reduce the temperature of processes by 2.4 times, to increase the yield of the target product almost

60-90 min. After cooling, J5 up to 100% is obtained by eliminating carbon monoxide iron sulfide (troilite) of ffeS composition. Individuality of the compound

the invention

Confirmed by x-ray phase and chemical analyzes. The yield of the target product is 100%,

i An increase in the consumption of iron leads to the formation of a mixture of troilite and fermental iron, a reduction facilitates the formation of nonstoichiometric iron sulfides. A decrease in the process temperature below 550 ° C leads to the formation of a mixture of nonstoichiometric sulfides and elemental iron;

I PRI me R. Source mineral n | yrit fractions of 0.074 m is mixed with iron tip with a grain size of mm

charge. Formula

20

25

thirty

Claims (1)

1. A method of producing troilite by reacting pyrite and iron by heating without air, which is because, in order to increase the yield of the target product and reduce energy consumption, pyrite and iron are taken in a mass ratio of 1: (0.43-0, 46) and the process is carried out at 550-600 ° C, 2, the method according to claim 1, 1 and 2, and that the initial components are used in a powder form. in a mass ratio of 1: 0.46 and burn the mixture at a temperature without access for about 60 minutes. After cooling, iron sulfide of composition FeS is obtained. 100% product yield The results of the process under other conditions are presented in the table. The proposed method in comparison with the known allows to reduce the temperature of processes by 2.4 times, to increase the yield of the target product almost up to 100% due to elimination up to 100% per bill charge. Formula 1. A method of producing troilite by reacting pyrite and iron by heating without air, which is because, in order to increase the yield of the target product and reduce energy consumption, pyrite and iron are taken in a mass ratio of 1: (0.43-0, 46) and the process is carried out at 550-600 ° C, 2, the method according to claim 1, 1 and 2, and that the initial components are used in a powder form.