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A kind of degreasing rust removing agent and its preparation method and application

The technology of rust remover and auxiliary agent is applied in the field of degreasing and rust remover and its preparation, which can solve the problems of too long time, carcinogenicity of human body, and large corrosion of metal substrate, and achieve the effect of simple processing process.

Active Publication Date: 2021-08-10
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional rust remover has poor rust removal effect when there is oil on the metal surface and takes too long. At this time, an effective two-in-one solvent for oil and rust removal can be used
[0004] The prior art proposes a degreasing, waxing and derusting agent, which contains dichloromethane, which is not only harmful to the environment, but also carcinogenic to the human body
[0005] At the same time, the degreasing and derusting agent proposed in the prior art itself has the disadvantages of strong odor and large corrosion on the metal base during long-term immersion

Method used

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  • A kind of degreasing rust removing agent and its preparation method and application
  • A kind of degreasing rust removing agent and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The rust remover that the embodiment of the present invention provides is by weight 3% of the concentrated sulfuric acid of purity 98%, 8% of the phosphoric acid of purity 85%, 2% of the concentrated nitric acid of purity 98%, the hydrofluoric acid 1% of purity 99%, 99% citric acid 4%, 99% oxalic acid 3%, 98% 2-hydroxyphosphonoacetic acid 13%, 99% sodium fluoride 1%, 99% sodium D-gluconate 4% , 99% purity JFC 1%, 99% purity urea 2%, 99% purity ethanolamine hydrochloride 2%, 99% purity sodium dodecylbenzenesulfonate 1%, 99% purity propylene glycol butyl ether 1%, Diethanolamine with a purity of 99% and 1% of diethanolamine, fatty acid methyl ester and fatty alcohol ether sulfonated product with a purity of 70% and 1.8%, and the balance is composed of pure water.

[0046] Preparation process: Dissolve water, diethanolamine, propylene glycol butyl ether, sodium dodecylbenzenesulfonate, JFC, fatty acid methyl ester and fatty alcohol ether sulfonate in a water bath at 50°C f...

Embodiment 2

[0050] The rust remover provided by the embodiments of the present invention is 3% by weight of concentrated sulfuric acid with a purity of 98%, 8% of phosphoric acid with a purity of 85%, 2% of concentrated nitric acid with a purity of 98%, 1% of hydrofluoric acid with a purity of 99%. 99% Citric Acid 10%, Purity 99% Oxalic Acid 8%, Purity 50% Acrylic Acid 5%, Purity 98% 2-Hydroxyphosphonoacetic Acid 10%, Purity 99% Sodium Fluoride 2%, Purity 99% Sodium D-Gluconate 5%, JFC 99% Purity 1%, Ethanolamine Hydrochloride 99% Purity 2%, Sodium Dodecylbenzene Sulfonate 99% Purity 1%, Propylene Glycol Butyl Ether 99% Purity 2%, Purity 99% diethanolamine 2%, fatty acid methyl ester and fatty alcohol ether sulfonate 1.8% purity 70%, and the balance is composed of pure water.

[0051] Preparation process: Dissolve water, propylene glycol butyl ether, sodium dodecylbenzenesulfonate, JFC, fatty acid methyl ester and fatty alcohol ether sulfonate in a water bath at 50°C for 30 minutes to obt...

Embodiment 3

[0055] The rust remover provided by the embodiments of the present invention is 3% by weight of concentrated sulfuric acid with a purity of 98%, 2% of concentrated nitric acid with a purity of 98%, 5% of phosphoric acid with a purity of 85%, 1% of hydrofluoric acid with a purity of 99%, Oxalic Acid 99% Purity 10%, Acrylic Acid 50% Purity 10%, 2-Hydroxyphosphonoacetic Acid 98% Purity 8%, Sodium Fluoride 99% Purity 1%, Sodium D-Gluconate 99% Purity 3% , 99% purity JFC 1%, 99% purity urea 2%, 99% purity ethanolamine hydrochloride 2%, 99% purity sodium dodecylbenzenesulfonate 1%, 99% purity propylene glycol butyl ether 1%, 2% of fatty acid methyl ester and fatty alcohol ether sulfonate with a purity of 70%, and the balance is composed of pure water.

[0056] Preparation process: Dissolve water, propylene glycol butyl ether, sodium dodecylbenzenesulfonate, JFC, fatty acid methyl ester and fatty alcohol ether sulfonate in a water bath at 50°C for 30 minutes to obtain liquid A;

[0...

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Abstract

The invention relates to a degreasing and derusting agent as well as a preparation method and application thereof. Composed of raw materials in the following weight percentages: 1-15% inorganic acid, 10-30% organic acid, 1-3% additive, 1-4% corrosion inhibitor, 0.5-4% surfactant, 0.3-2 penetrant %, sodium fluoride 0.1-2%, D-sodium gluconate 2-8%, and the balance is pure water. During use, it is non-volatile and does not produce a large amount of acid mist. Fast rust and oil removal.

Description

technical field [0001] The invention belongs to the technical field of metal surface degreasing and rust removal, and in particular relates to a degreasing and rust removing agent and a preparation method and application thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] When bare metal leaks in a humid air environment, it is prone to corrosion and rust on the surface. It will not only affect the beauty of the workpiece but also affect the subsequent painting process. The conventional anti-rust method is to passivate the metal, form a layer of oxide skin on the surface or apply a layer of protective oil. When the oil layer on the metal surface dries out or the pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/06
CPCC23G1/06
Inventor 马厚义王有远赫威秦棋王岩
Owner SHANDONG UNIV
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