SU1286582A1 - Method of conditioning potassium chloride - Google Patents

Abstract

This invention relates to a process for the production of non-caking potassium chloride. The aim of the invention is to reduce caking by increasing anti-caking 1; its effect is a conditioning additive. The purpose of the invention is achieved using as a conditioning additive sulfates or chlorides of iron (II) and (III) in combination with a similar salt of titanium (IV) in the following ratio of salts, in terms of oxides, wt.%: Iron oxide (II) 50-80 ; iron (III) oxide 10-20; titanium oxide (IV) 10-30. 1 tab. c (O (f.

Description

This invention relates to a process for producing non-caking mineral fertilizers.

The aim of the invention is to reduce the caking of mineral fertilizers by increasing the anti-caking action of the conditioning additive.

Sulfates or chlorides of iron (II) and (III) in combination with a similar salt of titanium (IV) in the following ratio of salts, in terms of oxides, wt.%, Are used as anti-caking agents:

Iron (II) oxide 50-80 Iron (III) oxide 10-20 Titanium oxide (IV) 10-30 The products containing sulfates of ferrous and ferric oxide and titanium are used waste products from the production of titanium dioxide and ferrous oxide and ferrous oxide and titanium - waste production of titanium.

Under the proposed method conducted laboratory experiments. Potassium chloride with a particle size of 0.25-0.1 mm was used. Tracking was determined by the time of the passage of the drill () through the molded sample. The effectiveness of the anti-caking effect was evaluated by the relative decrease in the magnitude of 1 under the action of the anti-tracking agent. Iron phosphate was used as the anti-tracking agent (prototype); sulphate of ferrous and oxide iron and titanium individually and in a mixture; chlorides of the same metals; titanium dioxide production waste which

contain wt.%: ferrous sulphate of ferrous 72.8; ferric sulfate oxide 12.8; titanium sulfate 14.4; titanium production wastes, which contain wt.%: ferrous ferrous chloride 72; ferric chloride oxide 10.7; titanium chloride 17.3.

The results of the experiments are given in the table.

As can be seen from the table, the recommended composition of anti-caking agent has a significantly higher efficiency (examples 13-17) than the prototype (examples 1-3). The use of waste from the production of titanium (Example 20) and titanium dioxide (Example 22) also makes it possible to obtain non-trace potassium fertilizers. At the same time, bringing the content of components to the optimum composition by adding titanium sulfate (experiments 21 and 23) makes it possible to increase the effectiveness of the anti-caking agent.

Claims (1)

Invention Formula The method of conditioning potassium chloride by treating it with an iron salt, which is characterized by the fact that, as a salt, sulfates or chlorides of iron (II) and (III) are used as a salt in combination with a similar salt of titanium (IV) in the following ratio of salts in conversion of e to oxides, wt.%: Iron (II) oxide 50-80 Iron (III) oxide 10-20 Titanium oxide (IV) 10-30 Iron Phosphate Same Ferrous sulfate (II) Also 10 10 10 86 86 90 90 90 14 14 45.2 69.5 73.9 41.9 61.6 of titanium 75 21 The same with the addition of titanium sulfate 68 Titanium dioxide production waste81 The same with the addition of titanium sulfate73 Editor Y. Petrushko Compiled by L. Skvirsky Tehred L.Oleynik Proofreader M, Pojo Order 7680/23 Circulation 408 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Table continuation and 0.5 91.9 14 18 0.5 96.5 12 0.5 86.5 ten 17 0.5 95.5 Subscription