Environmental-friendly rust remover and preparation method thereof

Abstract

The invention discloses an environmental-friendly rust remover and a preparation method thereof. The environmental-friendly rust remover is prepared from the following ingredients in parts by weight:100g of sulfamic acid, 100g of citric acid, 15g of isopropanol, 100g of HEDP, 5g of thiourea, 1308 5g of heterogeneous alcohol ether 1308 and a proper amount of water to reach the total quantity of 1000g. The preparation method of the environmental-friendly rust remover comprises the following steps of weighing the materials according to the proportioning ratio; adding the materials during stirring; after sufficient dissolution, stirring the materials to a transparent state; preparing the materials into a 1000g rust removing solution. The invention aims at providing the environmental-friendlyrust remover and the preparation method of the environmental-friendly rust remover; the environmental-friendly rust remover can replace strong acid such as hydrochloric acid and sulfuric acid to remove rust, and has the advantages that no acid mist, no foreign smell and no toxicity exist; safety and environmental protection are realized; the work efficiency is effectively improved; the service life of the acid liquid is effectively prolonged; the treatment is simple; the production cost is reduced.

Description

technical field [0001] The invention relates to the field of rust removers, in particular to an environment-friendly rust remover and a preparation method thereof. Background technique [0002] Ferrous metal (steel) is prone to rust when placed outdoors or in the open air, which not only affects the appearance quality, but also affects the normal progress of spraying, electroplating, bonding and other processes. Necessary economic loss. [0003] The current rust removal methods mainly include mechanical methods and chemical methods. The mechanical method is manual knocking, grinding and sandblasting. The disadvantages are high labor intensity, low efficiency, serious dust pollution, and limited by the shape of the component, it is difficult to clean the rust on the edges, corners, concave corners and the inner diameter of the thin tube. The chemical method has a series of advantages such as good effect, high efficiency, simple process and low cost, and is the development d...

AI Technical Summary

Problems solved by technology

Traditional chemical rust removal usually uses strong acids such as hydrochloric acid, sulfuric acid, and nitric acid. During the treatment process, a large amount of hydrogen gas will cause hydrogen embrittlement of the steel, which will cause the mechanical properties of the metal to decline and affect the strength of the steel itself; at the same time, it is easy to form acid mist. Affect the health of operators and corrode the surrounding equipment and environment; the consumption of acid solution is also large, which increases the processing cost; strong acid will cause excessive corrosion of steel, and in addition, a large amount of residues need to be discharged frequently, which seriously corrodes industrial pipelines. pollute the soil and environment

In addition, hydrochloric acid, nitric acid, and sulfuric acid are dangerous chemicals that are prone to poisonous and explosive production, and are controlled by public security organs; they are restricted by relevant laws and regulations during production and transportation

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