SU1323550A1 - Solution for removing iron-containing admixtures from alumosilicates - Google Patents

Abstract

The invention relates to solution compositions for the purification of aluminosilicates from iron-containing impurities. In order to increase whiteness and reduce the content of iron oxide, the solution contains the following components, wt%: mineral acid 1-3.5; hydroxyl aminosulfate 0.05-0.80; water - the rest. The content after treatment is reduced to 0.13-0.3%; whiteness is 67.0-74.2%. 1 tab. : о С: AE У У1

Description

The invention relates to the chemical treatment of nonmetallic {mineral raw materials, in particular, the processing of aluminosilicate and silicate materials during their bleaching, and can be used in the mining, chemical and other industrial sectors.

The aim of the invention is to increase whiteness and reduce the content of iron oxide in aluminosilicates.

The use of a specific combination of a specifically acting hydroxyl aminosulphate, which has oxidation-reduction properties, and a strong mineral acid causes the bonds to break down on the surface of the minerals and iron leaching with low concentrations of reagents.

Example 1. Sample trachyte containing,%: pyrite 0., 3; iron 1.7 (hereinafter in terms of FejOj) is crushed to class 62 - 0.074 microns. Then, flora and 1y pyrite are carried out, the weight is 250 g, the reagents are potassium butyl xanthogenate 80 g / t, PAFN 50 g / t, lime - 200 g / t. Flotation time 6 min. Foamy product contains pyrite, yield 3.6, extraction 65.9, yield of chamber product 96.4%.

The chamber product is subjected to chemical treatment for deferrization. For this, after the flotation of pyrite, the chamber product is decontaminated by filtration and dried. To 100 g of the chamber product, 400 ml of an aqueous solution containing, in wt.%, Hydroxylaminosulfate .0.8; sulfuric acid 1.0. The suspension is heated with stirring and at a temperature of 95 ° C for 150 minutes. The product is filtered off, 3-4 times the amount of water removed.

Components

The composition of the components, wt.% Examples

l lI III L ZII IiJJl E lE

Hydroxylamino-.

Fat 0, .8 0,, 8 0.05 0.05 0.6 0.4 0.4 0.2 0.2 0.1 0.1 0.1 0.4

Chamois - lot fjO

Sol on acid - 3.5 - 1.5 2.0 - 2.5 - 3.0 - 2.0

1.0 - 3.5 - - 2.0 - 2.5 - 3.0

five

until neutral. The product is dried. The yield in this and subsequent experiments is 97-98% of the original.

The whiteness of the product is assessed either by its content in. It is based on iron, or using a device by a water meter made by Zeis. The results for determining the whiteness and iron content of this and subsequent experiments are given in the table.

The effect of the ratio of the components in the composition of the solution on the indicators of whiteness and a decrease in the content of iron-containing impurities in the raw material.

. Comparative data on the treatment of trachyte with a solution in the prototype are the following, in May.%:

0

five

Sol Na Acid

Hydroxylamine

salty sour

Oxalic acid

Urea

Water

Content%

Rerz

White

0.14.0

0.327 0.071 0.048

99,414

0.36 64.5

Claims (1)

Invention Formula Solution for cleaning aluminosilicates from iron-containing impurities, including mineral acid, hydroxylamine salt and water, characterized in that, in order to increase whiteness and decrease iron oxide content, it contains the following components, wt.% :: 0 Mineral acid Hydroxylamine sulfate - salt hydroxylamine Water 1-3.5 0.05-0.80 Else j.The composition of the components, wt.% examples llz | s 4 | 5 | b17-18 Td I 10 I 1lTl2 Water 98.2 98.2 96.45 96.45 97.9 97.6 97.6 97.3 97.3 96.9 96.9 97.6 Content% , 0.26 0.16 0.3 0.3 0.21 0.21 0.13 0.23 0.2 0.26 0.23 0.18 Whiteness 68.5 73.0 67.0 67.0 70.5 71.3 74.2 70.3 71.4 68.6 70.1 72.1