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Cleaning agent with a component of nicotinic acid and application thereof

A cleaning agent, niacin technology, applied in the direction of organic non-surface active cleaning compositions, etc., can solve the problems of toxic side effects, eutrophication of water bodies, lack of market competitiveness, etc., and achieves strong continuous action ability, low dosage, good The effect of the application foreground

Inactive Publication Date: 2009-07-29
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently commonly used cleaning agents mainly include inorganic corrosion inhibitor compounds containing toxic chromate and some organic phosphorus corrosion inhibitor compounds, the discharge of which may cause eutrophication of water bodies
Most of the existing cleaning agents in the same field have toxic and side effects and do not have market competitiveness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The cleaning solution is dilute hydrochloric acid, the concentration is 0.10M, the amount of cleaning solution is 100L, add 1g of cleaning agent, clean at room temperature, and immerse the zinc alloy coating material for 2 hours. Through the test, the highest corrosion inhibition efficiency of nicotinic acid on metal is 96%, which shows that it is an efficient cleaning agent.

[0015] The invention is used for cleaning the surface of hot-dip galvanized, zinc-aluminum alloy and aluminum-zinc alloy coated steel and products thereof, and can prevent excessive corrosion of the coated metal and excessive consumption of acid solution in the cleaning process.

Embodiment 2

[0017] The cleaning solution is dilute hydrochloric acid, the concentration is 0.50M, the amount of cleaning solution is 100L, add 50g of cleaning agent, clean at room temperature, and immerse the zinc-aluminum alloy coating material for 3 hours. Through experimental tests, the highest corrosion inhibition efficiency of nicotinic acid on metal is 98%, which shows that it is an efficient cleaning agent.

Embodiment 3

[0019] The cleaning solution is dilute sulfuric acid with a concentration of 0.50M. The amount of cleaning solution is 100L. Add 100g of cleaning agent. Clean at room temperature and immerse the zinc-aluminum alloy for 2 hours. Through the test, the highest corrosion inhibition efficiency of nicotinic acid on metal is 97%, which shows that it is an efficient cleaning agent.

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PUM

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Abstract

The invention discloses a cleaning agent with nicotinic acid as its component and its application. The component is nicotinic acid, also known as nicotinic acid and vitamin B3. Its application is: use dilute hydrochloric acid or dilute sulfuric acid with a concentration of 0.10-1.0mol / L as the cleaning solution, add the cleaning agent in an amount of 0.010g / l-2.0g / l, and at room temperature, the hot-dip plating to be cleaned Zinc, zinc-aluminum alloy or aluminum-zinc alloy coated steel, immersion cleaning for 15 minutes to 3 hours. The invention has the outstanding advantages of low price, low dosage, high efficiency and strong continuous action ability. The cleaning agent of the invention is a water-soluble vitamin, which is non-toxic and harmless to the environment and organisms, conforms to the development trend of cleaning agents, and has good application prospects.

Description

technical field [0001] The invention relates to the technical field of cleaning agent production, in particular to a natural green cleaning agent used to prevent unnecessary corrosion and acid consumption of hot-dip galvanized, zinc-aluminum and aluminum-zinc alloy coated steel materials and their products during the cleaning process. Cleaning agents and applications. Background technique [0002] Hot-dip galvanized, zinc-aluminum alloy and aluminum-zinc alloy coated steel are more and more widely used. In the process of product processing and application, dilute sulfuric acid or dilute hydrochloric acid is often used for surface cleaning to remove the oxide film or corrosion products on the surface. To avoid excessive consumption of metal or acid during pickling and to prevent harmful corrosion, adding a cleaning agent with corrosion inhibition to acid is an effective means. [0003] Currently commonly used cleaning agents mainly include inorganic corrosion inhibitor compo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D7/26C23G1/02
Inventor 李焰鞠虹马瑛
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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