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Phosphate-free degreasing agent

A degreaser and chelating agent technology, applied in the field of non-phosphorus degreaser, can solve the problems of incomplete cleaning and excessive foam, and achieve the effects of easy control, strong cleaning ability and easy technical requirements.

Inactive Publication Date: 2014-02-12
SHENYANG PARKERIZING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phosphorus-free degreasing agents on the market are mainly composed of strong alkali and a large amount of surfactants, and there are also problems of incomplete cleaning and excessive foaming.

Method used

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  • Phosphate-free degreasing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The degreasing agent is composed of the following substances by weight percentage:

[0015] Sodium Carbonate 45%,

[0016] Sodium Metasilicate 25%,

[0017] Sodium Hydroxide 17%,

[0018] Disodium EDTA 5%,

[0019] Surfactant BO-902 5%,

[0020] Surfactant LG-299 3%.

[0021] The above-mentioned low-foaming ethanol surfactant BO-902 and alkyl polyoxyethylene polyoxypropylene ether LG-299 are all publicly sold products of Addico Shanghai Trading Co., Ltd.

[0022] The preparation method is as follows: in the existing volume container, add inorganic salt components according to the proportion and stir evenly, then add chelating agent and surface active agent components, and stir evenly as a whole.

Embodiment 2

[0024] The degreasing agent is composed of the following substances by weight percentage:

[0025] Sodium Carbonate 35%,

[0026] Sodium silicate 20%,

[0027] Sodium metasilicate 10%,

[0028] Sodium Hydroxide 25%,

[0029] Tetrasodium EDTA 3%,

[0030] Surfactant BO-902 4%,

[0031] Surfactant LG-299 3%.

[0032] Preparation method: with embodiment 1.

Embodiment 3

[0034] The degreasing agent is composed of the following substances by weight percentage:

[0035] Sodium bicarbonate 25%,

[0036] Sodium Metasilicate 42%,

[0037] Potassium Hydroxide 24%,

[0038] Sodium Gluconate 2%,

[0039] Surfactant BO-902 3%,

[0040] Surfactant LG-299 4%.

[0041] Preparation method: with embodiment 1.

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Abstract

The invention provides a phosphate-free degreasing agent which is prepared through the components according to the following weight percents: 25 to 45 percent of carbonate, 30 to 50 percent of silicate, 10 to 25 percent of basic salt, 2 to 5 percent of chelating agent, and 5 to 10 percent of surface-active agent. The phosphate-free degreasing agent provided by the invention not only achieve the purpose of phosphate free, but also has the advantages of low using temperature, low foaming, high cleaning capability and the like.

Description

technical field [0001] The invention belongs to a metal material surface cleaning agent, in particular to a phosphorus-free degreasing agent. Background technique [0002] A large number of degreasing agents currently on the market are phosphorus-containing degreasing agents, which will cause certain adverse effects on the environment. With the country's increasing environmental protection, the use of non-phosphorus degreasing agents is now the first choice for most companies. However, the phosphorus-free degreasing agents on the market are mainly composed of strong alkali and a large amount of surfactants, and there are also problems of incomplete cleaning and excessive foaming. Contents of the invention [0003] The purpose of the present invention is to provide a phosphorus-free degreasing agent, which is easy to control the technical requirements during use, has strong cleaning ability and low foam generation. [0004] The non-phosphorous degreasing agent provided by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/14
Inventor 王伟吴伏生谢贇杨维毅郝赫
Owner SHENYANG PARKERIZING
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