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Metal rust-removal composition and preparation method thereof

A composition and metal technology, applied in the field of metal derusting composition and its preparation, can solve problems affecting human health, toxicity, etc., and achieve the effects of safe and reliable use, strong derusting ability, and easy operation

Inactive Publication Date: 2015-03-25
安徽创业机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the rust is not removed, the spongy rust is especially easy to absorb water, and the iron will rust faster. When the iron rusts, it will be heavier, about 3 to 5 times its original weight. After the metal gets rusted, Its texture and aesthetics will be affected accordingly. However, there are a variety of metal rust removal products on the market, but none of them can really play a significant role, and there will be corresponding toxicity, which will affect human health.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A metal derusting composition, comprising the following raw materials in parts by weight: 15 kg of citric acid, 25 kg of tartaric acid, 5 kg of calcium bicarbonate, 8 kg of polyacrylic acid chitosan, 15 kg of o-xylene thiourea, and 20 kg of tetraacetyl ethylene diamine. 5kg of imidazoline, 8kg of hydrochloric acid, 4kg of urea, 3kg of calcium hypophosphite, and 30kg of deionized water.

[0017] Another object of the present invention is the method for preparing the metal rust removing composition of the present invention, which includes the following steps:

[0018] a. Choose a reactor, add 2 / 3 of the deionized water in the raw materials into the reactor, then add the citric acid, tartaric acid, hydrochloric acid, o-xylene thiourea, and tetraacetyl ethylene diamine in the raw materials into it, and heat To 50-60℃, turn on the stirring to make it completely dissolved;

[0019] b. After the solution in step a is completely dissolved, add the polyacrylic acid chitosan in the raw...

Embodiment 2

[0022] A metal derusting composition comprising the following raw materials in parts by weight: 20kg of citric acid, 30kg of tartaric acid, 6kg of calcium bicarbonate, 9kg of sodium alginate, 20kg of o-xylene thiourea, 25kg of tetraacetylethylenediamine, imidazoline 6kg, hydrochloric acid 9kg, urea 5kg, calcium hypophosphite 4kg, deionized water 35kg.

[0023] Another object of the present invention is the method for preparing the metal rust removing composition of the present invention, which includes the following steps:

[0024] a. Choose a reactor, add 2 / 3 of the deionized water in the raw materials into the reactor, then add the citric acid, tartaric acid, hydrochloric acid, o-xylene thiourea, and tetraacetyl ethylene diamine in the raw materials into it, and heat To 50-60℃, turn on the stirring to make it completely dissolved;

[0025] b. After the solution in step a is completely dissolved, add the sodium alginate in the raw materials to the solution, add calcium bicarbonate,...

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PUM

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Abstract

The invention discloses a metal rust-removal composition and a preparation method thereof, and relates to the technical field of chemical raw materials. The metal rust-removal composition is prepared by mixing and processing citric acid, tartaric acid, calcium bicarbonate, a thickener, o-xylene thiourea, tetraacetyl ethanediamine, imidazoline, hydrochloric acid, urea, calcium hypophosphite and deionized water by reasonably proportioning and formulating. According to the metal rust-removal composition and the preparation method thereof, the preparation method is simple and convenient, environmentally friendly and pollution-free, and has less equipment investment and convenience in operation, adopts easily available raw materials.

Description

Technical field [0001] The invention relates to the technical field of chemical raw materials, in particular to a metal derusting composition and a preparation method thereof. Background technique [0002] Rust is a chemical reaction. When iron is left for a long time, it will rust. Iron is easy to rust, in addition to its active chemical properties, it also has a lot to do with external conditions. Moisture is one of the substances that make iron easy to rust. However, only water does not make iron rust. Only when the oxygen in the air is dissolved in the water, the oxygen reacts with iron in a watery environment to produce iron oxide, which is rust. Rust is a reddish-brown substance. It is not as hard as iron and can easily fall off. After a piece of iron is completely rusted, its volume can expand by 8 times. If the rust is not removed, this spongy rust is particularly easy to absorb water, and the iron will rust faster. The iron will be heavier when it rusts, which is abou...

Claims

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Application Information

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IPC IPC(8): C23G1/02
CPCC23G1/02
Inventor 杨传长
Owner 安徽创业机电设备有限公司