Phosphorus-free cleaning agent and preparation method thereof

A cleaning agent and additive technology, applied in the field of application of green and environmentally friendly phosphorus-free cleaning agent and its preparation, to achieve good solubility, cleanability, and good stability

Inactive Publication Date: 2017-07-11
NANTONG KEXING CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, metal corrosion can even cause catastrophic accidents

Method used

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  • Phosphorus-free cleaning agent and preparation method thereof

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preparation example Construction

[0025] The preparation method of the phosphorus-free cleaning agent of the present application is to stir the compound surfactant and chelating agent and add water to mix to form the first solution; wherein the stirring temperature is between 50 degrees Celsius and 60 degrees Celsius, and the stirring speed is between 200rpm / min Between and 250 rpm / min, the mixing time was 30 minutes. At the same time, the alkaline additive is stirred and mixed with water to form a second solution; wherein the stirring speed is between 300 rpm / min and 350 rpm / min, and the mixing time is 20 minutes. Stir the corrosion inhibitor and the silicone defoamer at the same time, add water and mix to form a third solution; the mixing time is 30 minutes. Finally, the first solution, the second solution and the third solution are uniformly stirred to form a phosphorus-free cleaning agent; the stirring time is 15 minutes, and the stirring speed is between 200 rpm / min and 300 rpm / min.

[0026] The followin...

Embodiment 1

[0028] The preparation method of the phosphorus-free cleaning agent of the present embodiment is to add 20 parts of compound surfactants and 15 parts of sodium metasilicate to the reactor and stir, wherein the stirring temperature is between 50 degrees Celsius and 60 degrees Celsius, and the stirring speed is Between 200rpm / min and 250rpm / min, after adding water and mixing, after a mixing time of 30 minutes, the first solution was obtained. Simultaneously, 14 parts of 4A-molecular sieves were stirred at a stirring speed between 300 rpm / min and 350 rpm / min, and water was added while stirring, and the second solution was obtained after 20 minutes. Another 5 parts of EP-alcohol-rich nano-alloy corrosion inhibitor and 0.1 part of silicone oil were added while stirring, and water was added while stirring, and the third solution was obtained after 30 minutes. Finally, the first solution, the second solution, and the third solution were stirred uniformly in sequence, and the stirring...

Embodiment 2

[0030] The preparation method of the phosphorus-free cleaning agent of the present embodiment is to add 21 parts of compound surfactants and 16 parts of sodium metasilicate to the reactor and stir, wherein the stirring temperature is between 50 degrees Celsius and 60 degrees Celsius, and the stirring speed is Between 200rpm / min and 250rpm / min, after adding water and mixing, after a mixing time of 30 minutes, the first solution was obtained. At the same time, 12 parts of 4A-molecular sieves were stirred at a stirring speed between 300rpm / min and 350rpm / min, and water was added while stirring, and the second solution was obtained after 20 minutes. Another 6 parts of EP-alcohol-rich nano-alloy corrosion inhibitor and 0.2 part of silicone oil were added while stirring, and water was added while stirring, and the third solution was obtained after 30 minutes. Finally, the first solution, the second solution, and the third solution were stirred uniformly in sequence, and the stirring...

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Abstract

The invention relates to a phosphorus-free cleaning agent and a preparation method thereof. The phosphorus-free cleaning agent comprises the following components, by weight part, 15-25 parts of a compound surfactant, 10-20 parts of a chelating agent, 8-18 parts of an alkaline auxiliary agent, 5-8 parts of a corrosion inhibitor, 0.1-0.2 part of an organosilicone defoamer and 35-50 parts of water. The invention provides the phosphorus-free cleaning agent and the preparation method thereof. The phosphorus-free cleaning agent is excellent in dissolvability and detergency, not prone to be left on the surface of a workpiece, and free of phosphorus or heavy metal, is biodegradable, green and eco-friendly, and is beneficial for wastewater treatment. The phosphorus-free cleaning agent is of normal temperature and is low in foam and excellent in hard water stability. The phosphorus-free cleaning agent doesn't corrode a metal workpiece, and even if the metal workpiece is soaked in a concentrated phosphorus-free cleaning agent, the metal workpiece is not damaged.

Description

technical field [0001] The invention relates to the technical field of metal processing, in particular to an environmentally friendly phosphorus-free cleaning agent and a preparation method thereof. Background technique [0002] During the manufacture and use of metal products, metal surfaces are inevitably polluted, such as various acids, alkalis, salts, dust, chips, abrasives, polishing pastes, chip fluids, hand sweat, and various greases. If not treated immediately, it will accelerate the corrosion of the metal substrate. According to statistics, the metal loss caused by corrosion accounts for about 20% of the total metal output in all countries in the world. In addition, metal corrosion can even cause catastrophic accidents. Therefore, eliminating metal surface pollution and trying to prevent and reduce metal corrosion is a major event in saving energy and developing production. [0003] Therefore, how to develop a metalworking cutting fluid that replaces oil-based ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/00
CPCC23G1/00
Inventor 傅士超吴龙铁王凯华吴桂勤杨华
Owner NANTONG KEXING CHEM
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