Soaking solution for removing rusty yellow spots of white cobblestones, preparation method thereof, and method for removing rusty yellow spots of white cobblestones

Abstract

The invention discloses a soaking solution for removing rusty yellow spots of white cobblestones, a preparation method thereof, and a method for removing the rusty yellow spots of the white cobblestones, and relates to the technical field of treatment of the white cobblestones. The soaking solution for removing the rust yellow spots of the white cobblestones comprises the following components: oxalic acid, chloride, hydroxylamine hydrochloride, citric acid, ascorbic acid, sulfosalicylic acid, an additive and water. Ascorbic acid and sulfosalicylic acid can achieve a synergistic effect, rapidly react with iron oxide in the cobblestones, and can permeate into the cobblestones to react with rust, so that the leaching speed of the iron oxide is increased; and hydroxylamine hydrochloride can quickly react with ferric ions to generate ferrous ions, so that the concentration of the ferric ions in the solution is reduced, and the reaction is promoted to move in the positive direction. The soaking solution for removing the rusty yellow spots of the white cobblestones is free of fluorine and pollution, cannot corrode and peel off the surface layers of the cobblestones, can quickly remove the rusty yellow spots of the cobblestones, and can be continuously used after corresponding components are supplemented according to conditions after being used.

Description

technical field [0001] The invention relates to the technical field of white cobblestone treatment, in particular to a soaking solution for removing white cobblestone rust and yellow spots, a preparation method thereof, and a method for removing white cobblestone rust and yellow spots. Background technique [0002] Stone reserves are very rich in our country and are widely used. The quality of stone determines the price of stone. Many stones are oxidized due to compounds containing iron to form endogenous rusty spots, especially white pebbles. Rust yellow spots seriously affect the The whiteness of the pebbles leads to the poor quality of the whole pebbles and affects its price. The main component of cobblestone is silicon dioxide. The conventional method of removing rust and yellow spots is to soak in strong acid or add fluorine-containing compounds. Strong acid will cause corrosion of equipment, and it is easy to form acid mist and pollute the environment. Adding fluorine...

AI Technical Summary

Problems solved by technology

[0002] Stone reserves are very rich in our country and are widely used. The quality of stone determines the price of stone. Many stones are oxidized due to compounds containing iron to form endogenous rusty spots, especially white pebbles. Rust yellow spots seriously affect the The whiteness of the pebbles leads to the poor quality of the whole pebbles and affects its price

The main component of pebbles is silicon dioxide. The conventional method of removing rust and yellow spots is to soak in strong acid or add fluorine-containing compounds. Strong acid will cause corrosion of equipment, easy to form acid mist, and pollute the environment.

Adding fluorine-containing compounds will corrode the surface of the pebbles and cause powder loss, which will affect the surface finish of the pebbles. At the same time, fluorine-containing compounds have certain toxicity, which will affect the health of construction workers and subsequent sewage treatment

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