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Environment-friendly type water-based pickling agent

A water-based acid, environmentally friendly technology, applied in the field of cleaning agents, can solve the problems of pollution, high cost, high cost, etc., and achieve the effect of reducing use cost, improving performance, and being environmentally friendly.

Inactive Publication Date: 2016-11-09
TIANJIN PRIMETECH CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of the national economy, the chemical cleaning technology has developed greatly. It has developed from a single hydrochloric acid plus corrosion inhibitor cleaning agent to a variety of different cleaning agents for scales and corrosion products of different materials. agents, such as hydrofluoric acid, EDTA, etc., but each of the existing cleaning agents has one or another shortcoming and limitation, such as hydrochloric acid used as a cleaning agent to corrode equipment, and hydrofluoric acid used as a cleaning agent to pollute the environment. EDTA is used as a cleaning agent, which is expensive and expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 80% water into the reaction kettle, under 30-50r / min low-speed stirring, add 14% hydroxypropionic acid, 5% citric acid and 1% APG in sequence, and stir for 5-10min to obtain a water-based acid lotion .

Embodiment 2

[0026] Add 80% water into the reaction kettle, under 30-50r / min low-speed stirring, add 14% citric acid, 5% sulfamic acid and 1% APG in sequence, and stir for 5-10min to obtain a water-based acid lotion .

[0027] Cleaning process:

[0028] The cleaning of aluminum stamping workpiece, the pickling agent that embodiment 1 and embodiment 2 obtains is diluted, is 100% concentration dilution to pickling agent concentration 5-8% by pickling agent, workpiece is put into ultrasonic wave, temperature 50- 60°C, cleaning time 3-5min, then rinse with pure water twice, air dry, complete cleaning. The workpiece is bright, clean and free from corrosion.

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PUM

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Abstract

The invention discloses an environment-friendly type water-based pickling agent. The environment-friendly type water-based pickling agent is characterized by comprising the following raw materials including, by weight percentage, 50%-80% of pure water, 15%-49% of organic acid and 1%-5% of surface active agent. According to the environment-friendly water-based pickling agent, the formula is simple, and the environment-friendly type water-based pickling agent is compounded from the organic acid and the biodegradable surface active agent; after use, an appropriate amount of alkali can be added to the environment-friendly type water-based pickling agent so that the environment-friendly type water-based pickling agent can be neutralized to be neutral, and then the environment-friendly type water-based pickling agent is directly discharged to a sewer; and in this way, bio-concentration, the increase of COD and other hazards are avoided, the water-based pickling agent is environmentally friendly and does not need independent treatment, and the use cost of an enterprise is reduced.

Description

technical field [0001] The invention belongs to the technical field of cleaning agents, in particular to an environment-friendly water-based pickling agent. Background technique [0002] In recent years, with the rapid development of the national economy, the chemical cleaning technology has developed greatly. It has developed from a single hydrochloric acid plus corrosion inhibitor cleaning agent to a variety of different cleaning agents for scales and corrosion products of different materials. agents, such as hydrofluoric acid, EDTA, etc., but each of the existing cleaning agents has one or another shortcoming and limitation, such as hydrochloric acid used as a cleaning agent to corrode equipment, and hydrofluoric acid used as a cleaning agent to pollute the environment. EDTA is used as a cleaning agent, which is expensive and expensive. Therefore, how to choose a reasonable acid as a pickling agent is an important issue in the field of metal cleaning. The invention adop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/12
CPCC23G1/125
Inventor 高满鑫李大庆朱国梅
Owner TIANJIN PRIMETECH CHEM
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