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Neutral descaling agent for efficiently removing carbonate and iron oxide scales, and preparation method thereof

A technology of iron oxide scale and descaling agent, which is applied to chemical instruments and methods, descaling and water softening, water pollutants, etc., can solve the problems of polluted environment and strong corrosiveness of descaling agent, and achieve low cost and no pollution. Corrosive, efficient and convenient to use

Inactive Publication Date: 2020-04-14
大庆鉴升科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the technical problems of strong corrosion and environmental pollution in existing descaling agents, and provides a neutral descaling agent for efficiently removing carbonate and iron oxide scales and a preparation method thereof

Method used

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specific Embodiment approach 1

[0016] Embodiment 1: The present embodiment is a neutral scale remover that efficiently removes carbonate and iron oxide scale, including 20-60 parts by mass of organic acids, 20-60 parts of organic acid salts, 5-15 parts by mass Sodium dodecylbenzenesulfonate, 5-15 parts of phenyltriazole and 15-30 parts of diethylenetriaminepentaacetic acid; wherein the organic acid is a mixture of one or both of citric acid and malic acid; organic acid The acid salt is one or a mixture of sodium citrate and sodium malate.

specific Embodiment approach 2

[0017] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the neutral scale remover includes 50 parts by mass of malic acid, 20 parts of sodium malate, 5 parts of sodium dodecylbenzenesulfonate, 15 parts phenyltriazole and 20 parts diethylenetriaminepentaacetic acid. Others are the same as the first embodiment.

specific Embodiment approach 3

[0018] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that: the neutral scale remover includes 50 parts by mass of citric acid, 20 parts of sodium citrate, 5 parts of dodecylbenzenesulfonic acid sodium, 15 parts phenyltriazole and 20 parts diethylenetriaminepentaacetic acid. Others are the same as in the first or second embodiment.

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PUM

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Abstract

The invention discloses a neutral descaling agent for efficiently removing carbonate and iron oxide scales, and a preparation method thereof, and relates to the field of descaling agents and preparation methods thereof. A purpose of the invention is to solve the technical problems of strong corrosivity and environmental pollution of the existing descaling agent. The neutral descaling agent is prepared from an organic acid, an organic acid salt, sodium dodecyl benzene sulfonate, benzotriazole and diethylenetriamine pentaacetic acid, wherein the organic acid is citric acid or malic acid, and theorganic acid salt is sodium citrate or sodium malate. The method comprises the following steps: weighing raw materials, and mixing the raw materials. According to the invention, the descaling agent is prepared by adding the corrosion inhibitors benzotriazole and diethylenetriamine pentaacetic acid into the organic acid citric acid or malic acid and mixing, is simple in preparation method, efficient and convenient to use, basically free of corrosion to containers such as steel pipelines and the like, free of any destructive effect on the environment, safe and reliable, and is used for removingcarbonate and iron oxide scales.

Description

technical field [0001] The present invention relates to the field of descaling agent and its preparation method. Background technique [0002] At present, the common detergent formulations include industrial oxalic acid, acetic acid, formic acid, sulfamic acid, etc., and some are cleaned with nitric acid, hydrochloric acid, and sulfuric acid. It is also easy to generate hydrogen gas and cause safety production accidents. At the same time, there are problems of difficult waste liquid treatment and environmental pollution; such as sulfuric acid, nitric acid, hydrochloric acid and other strong acids, the corrosion of stainless steel, aluminum and copper is particularly large, and it is not suitable for cleaning all metals and Non-metallic materials; formic acid, acetic acid, etc. in organic acids are inflammable and explosive dangerous goods, and there is a potential risk of explosion when used on site; industrial oxalic acid is a toxic material, which is not only corrosive whe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12C02F5/10C02F101/20C02F101/10
CPCC02F5/10C02F5/12C02F2101/10C02F2101/203
Inventor 宋鉴
Owner 大庆鉴升科技开发有限公司
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