Method for preparing feldspar iron removal floatation collecting agent

Abstract

The invention discloses a method for preparing feldspar iron removal floatation collecting agent. The method comprises the following steps: on the basis of utilizing oil stock and acidification oil produced by refining vegetable oil and one or mixture of crude fatty acids produced by the oil stock and the acidification oil as basic raw materials, adding technical hydrochloric acid accounting for 3-20wt% of the basic raw materials, reacting at the temperature of 20-40 DEG C, adding 45-50% alkali liquor accounting for 35-50wt% of the basic raw materials, and adjusting the pH value to be 8-10, controlling the reaction temperature to be 90-100 DEG C, reacting for 2-3 hours; and then adding anion surfactant accounting for 2-10wt% of the basic raw materials, and uniformly mixing, thus the finalproduct is obtained. The method disclosed by the invention has the advantages of available raw materials, low production cost, stable properties, strong collection and good selectivity, the feldspar iron removal floatation collecting agent is used for feldspar floatation, the requirement of iron impurity content required by feldspar ore concentrates at the first grate can be met, and no other side effect is produced.

Description

technical field [0001] The present invention relates to a kind of preparation method of flotation reagent, especially relate to a kind of preparation method of feldspar iron removal flotation collector, specifically adopt the oil foot that produces in refining vegetable oil, acidified oil and process by them The production of crude fatty acid is used as the basic raw material to prepare feldspar iron removal flotation collector. Background technique [0002] Feldspar iron removal flotation collectors generally use mature commercial fatty acids on the market such as oleic acid. The general process for preparing oleic acid is: raw oil bottoms or acidified oil are hydrolyzed under acidic or alkaline conditions to generate crude fatty acids; After the crude fatty acid is deacidified, it is washed with water, dried and dehydrated, and distilled to produce a mixed fatty acid accounting for 85% of the crude fatty acid, and at the same time produce a by-product still bottom distilla...

AI Technical Summary

Problems solved by technology

[0004] (1) The flotation must be carried out under acidic conditions, which seriously corrodes the equipment, increasing the maintenance cost and depreciation rate of the equipment;

[0005] (2) The amount of flotation agent is large, 3-5 kg ​​per ton of raw ore;

[0006] (3) The color of the surface of the feldspar concentrate turns yellow due to the adhesion of the medicament, resulting in the whiteness of some feldspar concentrate powders used in ceramics not meeting the standard;

[0007] (4) Due to the use of fuel oil, the fuel oil is attached to the surface of feldspar concentrate. During the roasting process, it is easy to generate smoke and affect the quality of feldspar products.

Images