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Phosphorus-free oil removing powder

A technology of oil powder and mass percentage, applied in the field of phosphorus-free degreasing powder, which can solve the problems of water pollution and eutrophication, and achieve the effect of environmental friendliness and excellent degreasing effect

Inactive Publication Date: 2013-03-13
ANHUI CHANGQING ELECTRONICS MACHINERY GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phosphate has strong chelating properties and can be used as a builder. It is widely used in degreasing powders. However, the presence of phosphorus in phosphate can easily cause eutrophication of water bodies and eventually pollute water bodies. Improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] A phosphorus-free degreasing powder, which comprises sodium hydroxide (10-30), sodium carbonate (10-20), trisodium nitrilotriacetate (2-15), C2-8 carboxylic acid ( 2-15), sodium citrate (1-5); sodium gluconate (1-5), sodium sulfate (5-10), surfactant (2-20). According to the ratio by mass percentage, the surfactant consists of 60 parts of nonionic surfactant, 30 parts of anionic surfactant, 5 parts of penetrating agent and 5 parts of wetting agent.

Embodiment 2

[0014] A phosphorus-free degreasing powder, which comprises sodium hydroxide (20-25), sodium carbonate (15-18), trisodium nitrilotriacetate (8-10), C2-8 carboxylic acid ( 5-10), sodium citrate (2-4); sodium gluconate (1-3), sodium sulfate (3-5), surfactant (5-18). According to the ratio by mass percentage, the surfactant consists of 60 parts of nonionic surfactant, 30 parts of anionic surfactant, 5 parts of penetrating agent and 5 parts of wetting agent.

[0015] Sodium sulfate can provide anions, increase ionic strength, absorb anions in dirt, reduce surface tension and increase surface activity, improve cleaning and dispersing ability, and reduce costs.

[0016] Among them, the penetrating agent is a kind of surfactant, which mainly plays a penetrating role, and can enhance the penetrating ability of the degreasing powder to the oil stain on the surface of the workpiece. It is a kind of fixed hydrophilic and lipophilic group, which can be oriented on the surface of the solut...

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Abstract

The invention discloses phosphorus-free oil removing powder which comprises the following components in percentage by mass: 10-30% of sodium hydroxide, 10-20% of sodium carbonate, 2-15% of nitrilotriacetic acid trisodium salt, 2-15% of C2-8 carboxylic acid, 1-5% of sodium citrate, 1-5% of sodium gluconate, 5-10% of sodium sulfate and 2-20% of surfactant. According to the invention, waste water treated by the oil removing powder is easy to treat; and the oil removing effect is good, and the oil removing speed is high.

Description

technical field [0001] The invention relates to a phosphorus-free degreasing powder. Background technique [0002] Degreasing powder, also known as degreasing powder, is a chemical widely used in the pretreatment of metal and plastic electroplating and spraying industries. It is also used in various hardware cleaning industries. It is divided into chemical degreasing powder and electrolytic degreasing according to its properties Powder can also be divided into steel degreasing powder and alloy degreasing powder according to the type. Degreasing powder is a low-foaming degreasing and degreasing agent refined from a variety of high-quality surfactants, detergents, penetrants, builders, etc. It has good wetting and emulsifying capabilities, and has strong degreasing properties. ability. There is no visible oil film or oil spots on the surface of the workpiece after cleaning. It is mainly used in the cleaning of aluminum alloy, zinc alloy, magnesium alloy and other alloy mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/14
Inventor 吴长青
Owner ANHUI CHANGQING ELECTRONICS MACHINERY GRP
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