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Cleaning agent for waste teletron broken glass and its preparation method

A technology of cullet and cleaning agent, which is applied in the direction of inorganic non-surface-active cleaning compositions, etc., can solve the problems of high cost, serious physical injury, and difficult wastewater treatment, and achieve the effects of convenient storage, low cost, and reduced cleaning costs

Inactive Publication Date: 2006-11-29
何北菁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has less loss of glass, but HF acid is more harmful to the body of the operator, and it is difficult to treat wastewater; and HF is a cleaning agent that is generally restricted in use at home and abroad.
[0007] Other countries are also working on the development of cleaning agents for the broken glass coating of waste picture tubes, but the cerium oxide component must be added, and the cost is relatively high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Liquid A agent composition: (preparation 100kg)

[0049] Hydrochloric acid (molecular formula is HCl): 9kg,

[0050] Hydrogen peroxide (molecular formula H 2 o 2 , commercial content 27%): 2kg,

[0051] After adding water, it is 100kg.

[0052] Composition of solid B dose (based on liquid A dose):

[0053] Complexing agent: select one or more of ethylenediaminetetraacetic acid (EDTA) and its sodium salt, citric acid, sodium citrate and potassium salt, the total amount is 4.5kg,

[0054] Glycolic acid (aconic acid): 2kg, (molecular formula is HOCH 2 COOH),

[0055] Fluoride ion active ingredient, choose sodium fluoride 4kg,

[0056]Surfactant 0.005kg, choose ABS and perfluorooctanoic acid sodium salt, the addition ratio of the two is 10:1.

[0057] The liquid A agent and the solid B agent are weighed and mixed uniformly according to the stated ratio respectively. For example, when the liquid A agent is prepared, the active ingredients hydrochloric acid or sulfuri...

Embodiment 2

[0060] Liquid A agent composition: (preparation 100kg)

[0061] Sulfuric acid: commercially available 95% industrial sulfuric acid 3.3kg,

[0062] Hydrogen peroxide (molecular formula H 2 o 2 , content 27%): 0.7kg,

[0063] After adding water, it is 100kg.

[0064] Composition of solid B dose (based on liquid A dose):

[0065] Complexing agent: select one or more of ethylenediaminetetraacetic acid (EDTA) and its sodium salt, citric acid, sodium citrate and potassium salt, the total amount is 3kg,

[0066] Glycolic acid (itaconic acid) 0.7kg, (molecular formula is HOCH 2 COOH),

[0067] Fluoride ion active ingredient 1.5kg, select sodium fluoride and potassium fluoride to mix at 1:1,

[0068] Surfactant 0.005kg. ABS and perfluorooctanoic acid sodium salt are calculated at a ratio of 10:1.

[0069] The preparation method is the same as in Example 1.

Embodiment 3

[0071] Liquid A agent composition: (preparation 100kg)

[0072] Hydrochloric acid: 15kg,

[0073] Hydrogen peroxide (molecular formula H 2 o 2 , commercial content 27%): 3kg,

[0074] After adding water, it is 100kg.

[0075] Composition of solid B dose (based on liquid A dose):

[0076] Complexing agent: select one or more of ethylenediaminetetraacetic acid (EDTA) and its sodium salt, citric acid, sodium citrate and potassium salt, the total amount is 6kg,

[0077] Glycolic acid (itaconic acid) 3kg, (molecular formula is HOCH 2 COOH) industrial grade products,

[0078] Fluoride ion active ingredient 6kg, sodium fluoride and potassium fluoride mixed in 1:1,

[0079] Surfactant 0.005kg, ABS and perfluorooctanoic acid sodium salt at a ratio of 10:1.

[0080] The preparation method is the same as in Example 1.

[0081] The appearance of the above-mentioned cleaning agent is a colorless uniform transparent or slightly light yellow liquid with a specific gravity of 1.05 an...

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PUM

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Abstract

The invention relates to the deposed kinescope cullet cleanser and the producing method, consisting of liquid A and solid B. Liquid A comprises 3.3-15%hydrochloric acid and vitriol besides water. Solid B (quantity based on liquid A) comprises 3-6% bond, 0.7-3% alcohol acids, 1.5-6% fluorin ion active component and active surfactant 0.005-0.01%. The process of the producing method as follow: respectively mixing the proportional substance of liquid A and solid B, then quantifying liquid A and solid B and mixing them until making it dissolution entirely. When used, the cleanser should be heated between 30 Deg. C and 60 Deg. C, then putting in water to clean glass. PH is 1-2.Proportion is 1.03-1.2. The cleanser can clean deposed kinescope cullet quickly. It is sanitary, no peculiar smell, rare erosive, low cost, hardly burning, safe and convenience.

Description

technical field [0001] The invention relates to a cleaning agent for the electronic industry and a preparation method thereof, in particular to a cleaning agent for broken glass of waste picture tubes and a preparation method thereof. Background technique [0002] At present, according to experts' prediction, in the next five to fifteen years, the scrapping period of CRT picture tubes produced in my country is coming soon, while advanced countries such as Europe, America and Japan are experiencing the peak of electronic waste (including CRT picture tubes) scrapping. According to the 2005 Communication Development Statistical Bulletin published by the Ministry of Information Industry, the number of Internet users in China has reached 111 million. It is conservatively estimated that 60% of them use (CDT glass bulb) display tubes, which means that in the next 5 -In 10 years, 66.6 million waste (CDT) (about 1 million tons of cullet) displays will be scrapped one after another. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D7/08C03C25/70
Inventor 何北菁张浩
Owner 何北菁