CN103590052A

CN103590052A - Environment-friendly cleaning liquid for cold-rolled sheet

Info

Publication number: CN103590052A
Application number: CN201210288027.6A
Authority: CN
Inventors: 杨细龙
Original assignee: SUZHOU YIFANG METAL SURFACE TREATMENT TECHNOLOGY Co Ltd
Current assignee: SUZHOU YIFANG METAL SURFACE TREATMENT TECHNOLOGY Co Ltd
Priority date: 2012-08-14
Filing date: 2012-08-14
Publication date: 2014-02-19

Abstract

The invention relates to an environmental-friendly cleaning liquid for a cold-rolled sheet. The cleaning liquid comprises the following components by weigh: 8%-12% of fatty alcohol polyoxyethylene ether, 8%-12% of alkylphenol polyoxyethylene, 5%-10% of hexamethylenetetramine, 5%-8% of a metal complexing agent, 1%-4% of citric acid, 18%-22% of oxalic acid, 0.5%-1.5% of hydrochloric acid and 40%-50% of water. When used, the cleaning liquid provided by the invention does not require heating, generates no smell or damage to the staff, and can be used repeatedly to realize extremely little discharge, green and environmental protection.

Description

A kind of cold rolled sheet Environment protection cleaning liquid

Technical field

The present invention relates to cleaner for metal field, be specifically related to a kind of cold rolled sheet Environment protection cleaning liquid.

Background technology

In existing roll bending industry, cleaning process is roughly as follows: sodium hydroxide, sodium carbonate are warmed to 90 ℃ ~ 95 ℃ and carry out degreasing degreasing, then roll bending is gone out to groove tow sides high pressure water washing, enter afterwards pickling in 70 ℃ of left and right acid tanks and fall oxide skin and dirt, finally shower is cleaned again.Whole cleaning, through alkali cleaning, pickling under high temperature, is used a large amount of strong acid and strong bases, and in operation room, smell is pungent, full of smoke, to operator's respiratory system with healthyly bring very big infringement.Spent acid salkali waste after use forms a large amount of industrial effluent, increases processing cost, contaminate environment.

Summary of the invention

The object of this invention is to provide a kind of cold rolled sheet Environment protection cleaning liquid, it,, without heating, has no irritating odor, to staff's not damaged; Can Reusability, discharge is few, environmental protection.

For achieving the above object, technical scheme of the present invention is: a kind of cold rolled sheet Environment protection cleaning liquid, and the component of described cold rolled sheet Environment protection cleaning liquid and separately weight percent are:

Fatty alcohol-polyoxyethylene ether 8%～12%;

Alkylphenol polyoxyethylene 8%～12%;

Vulkacit H 5% ~ 10%;

Metal chelating agent 5%～8%;

Citric acid 1%～4%;

Oxalic acid 18%～22%;

Hydrochloric acid 0.5%～1.5%;

Ammonium molybdate 1%～4%;

Water 40%～50%.

Preferably, the component of described cold rolled sheet Environment protection cleaning liquid and separately weight percent be:

Fatty alcohol-polyoxyethylene ether 9%～11%;

Alkylphenol polyoxyethylene 9%～11%;

Vulkacit H 7% ~ 9%;

Metal chelating agent 6%～7%;

Citric acid 2%～3%;

Oxalic acid 19%～21%;

Hydrochloric acid 1%;

Ammonium molybdate 2%～3%;

Water 40%～50%.

Fatty alcohol-polyoxyethylene ether 10%;

Alkylphenol polyoxyethylene 10%;

Vulkacit H 7%;

Metal chelating agent 6%;

Citric acid 2%;

Oxalic acid 20%;

Hydrochloric acid 0.5%;

Ammonium molybdate 2%;

Water 42.5%.

Preferably, described fatty alcohol-polyoxyethylene ether is JFC permeate agent.

Preferably, described alkylphenol polyoxyethylene is emulsifier op-10.

Preferably, described metal chelating agent is a kind of in ammonia hydroxyl complexing agent, sulfydryl complexing agent, organophosphate, polyacrylic acid, hydroxycarboxylate, or several mixtures wherein.

Preferably, described metal chelating agent is ammonia hydroxyl complexing agent or sulfydryl complexing agent, or the mixture of the two.

When using, the present invention without heating, has no irritating odor, to staff's not damaged; Can Reusability, discharge is few, environmental protection.

Embodiment

Below in conjunction with specific embodiment, technical scheme of the present invention is further described, but the present invention is not limited to these embodiment.

Embodiment 1

An Environment protection cleaning liquid, its component and separately weight percent are:

JFC permeate agent 10%;

Emulsifier op-10 10%;

Vulkacit H 7%;

EDTA 6%；

Citric acid 2%;

Oxalic acid 21%;

Hydrochloric acid 0.5%;

Ammonium molybdate 2%;

Water 41.5%.

After all reinforced, then stir after 20 minutes ~ 30 minutes and get final product to obtain finished product.

When cold rolled sheet being cleaned with this scavenging solution, only cold rolled sheet need be immersed in this scavenging solution, to clean, scale removal reaction meets the requirements of after degree, takes out and carries out rinsing, drying.

Embodiment 2

JFC permeate agent 9%;

Emulsifier op-10 9%;

Vulkacit H 9%;

HEDTA 7%；

Citric acid 2%;

Oxalic acid 20%;

Hydrochloric acid 0.5%;

Ammonium molybdate 2%;

Water 40.5%.

Embodiment 3

JFC permeate agent 11%;

Emulsifier op-10 9%;

Vulkacit H 5%;

NTA 5%；

Citric acid 2%;

Oxalic acid 18%;

Hydrochloric acid 1%;

Ammonium molybdate 1%;

Water 48%.

Embodiment 4

JFC permeate agent 12%;

Emulsifier op-10 8%;

Vulkacit H 8%;

DTPA 5%；

Citric acid 1%;

Oxalic acid 22%;

Hydrochloric acid 1%;

Ammonium molybdate 1%;

Water 42%.

All components arbitrary combination in following scope in above-described embodiment:

Fatty alcohol-polyoxyethylene ether 8%～12%;

Alkylphenol polyoxyethylene 8%～12%;

Vulkacit H 5% ~ 10%;

Metal chelating agent 5%～8%;

Citric acid 1%～4%;

Oxalic acid 18%～22%;

Hydrochloric acid 0.5%～1.5%;

Ammonium molybdate 1%～4%;

Water 40%～50%.

In above-described embodiment, described metal chelating agent is a kind of in ammonia hydroxyl complexing agent, sulfydryl complexing agent, organophosphate, polyacrylic acid, hydroxycarboxylate, or several mixtures wherein.

Or described metal chelating agent is ammonia hydroxyl complexing agent or sulfydryl complexing agent, or the mixture of the two.

The present invention, without heating, has no irritating odor, to staff's not damaged; Can Reusability, discharge is few, environmental protection.

Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, and these all belong to protection scope of the present invention.

Claims

1. a cold rolled sheet Environment protection cleaning liquid, is characterized in that, the component of described cold rolled sheet Environment protection cleaning liquid and separately weight percent are:

Fatty alcohol-polyoxyethylene ether 8%～12%;

Alkylphenol polyoxyethylene 8%～12%;

Vulkacit H 5% ~ 10%;

Metal chelating agent 5%～8%;

Citric acid 1%～4%;

Oxalic acid 18%～22%;

Hydrochloric acid 0.5%～1.5%;

Ammonium molybdate 1%～4%;

Water 40%～50%.

2. cold rolled sheet Environment protection cleaning liquid according to claim 1, is characterized in that, the component of described cold rolled sheet Environment protection cleaning liquid and separately weight percent are:

Fatty alcohol-polyoxyethylene ether 9%～11%;

Alkylphenol polyoxyethylene 9%～11%;

Vulkacit H 7% ~ 9%;

Metal chelating agent 6%～7%;

Citric acid 2%～3%;

Oxalic acid 19%～21%;

Hydrochloric acid 1%;

Ammonium molybdate 2%～3%;

Water 40%～50%.

3. cold rolled sheet Environment protection cleaning liquid according to claim 1, is characterized in that, the component of described cold rolled sheet Environment protection cleaning liquid and separately weight percent are:

Fatty alcohol-polyoxyethylene ether 10%;

Alkylphenol polyoxyethylene 10%;

Vulkacit H 7%;

Metal chelating agent 6%;

Citric acid 2%;

Oxalic acid 20%;

Hydrochloric acid 0.5%;

Ammonium molybdate 2%;

Water 42.5%.

4. according to the arbitrary described cold rolled sheet Environment protection cleaning liquid of claim 1 to 3, it is characterized in that, described fatty alcohol-polyoxyethylene ether is JFC permeate agent.

5. according to the arbitrary described cold rolled sheet Environment protection cleaning liquid of claim 1 to 3, it is characterized in that, described alkylphenol polyoxyethylene is emulsifier op-10.

6. according to the arbitrary described cold rolled sheet Environment protection cleaning liquid of claim 1 to 3, it is characterized in that, described metal chelating agent is a kind of in ammonia hydroxyl complexing agent, sulfydryl complexing agent, organophosphate, polyacrylic acid, hydroxycarboxylate, or several mixture wherein.

7. according to the arbitrary described cold rolled sheet Environment protection cleaning liquid of claim 1 to 3, it is characterized in that, described metal chelating agent is ammonia hydroxyl complexing agent or sulfydryl complexing agent, or the mixture of the two.