Water-based metal antirust powder with ultralow use concentration

Abstract

The invention discloses water-based metal antirust powder with ultralow use concentration. The water-based metal antirust powder comprises the following components in percentage by mass: 25-50% of anhydrous sodium tetraborate, 0-10% of sodium carbonate, 20-25% of sodium hydroxide, 5-10% of polybasic carboxylic acid (one or more of the polybasic carboxylic acid) and 30% of aza-benzene ring polyaminocaproic acid. Wherein the polybasic carboxylic acid is one or more of dodecanedioic acid, sebacic acid, tridecanedioic acid and 2, 4, 6-tri (aminocaproic acid)-1, 3, 5-triazine, the aza-benzene ring polyaminocaproic acid is a tetrabasic acid, and the synthetic method of the tetrabasic carboxylic acid metal antirust agent is introduced in detail in the patent CN201910984891.1. The preparation method comprises the following steps: firstly mixing 5-10% of polycarboxylic acid and 20-30% of aza-benzene ring polyaminocaproic acid, uniformly stirring, then adding 0-10% of sodium carbonate, uniformly stirring, then adding 25-50% of anhydrous sodium tetraborate, uniformly stirring, finally adding 20-25% of sodium hydroxide, uniformly stirring to obtain the water-based metal antirust powder, and packaging to obtain the water-based metal antirust powder.

Description

Technical Field

[0001] The invention relates to the technical field of rust prevention, and in particular to a water-based metal rust prevention powder with ultra-low usage concentration. Background Art

[0002] Ferrous metal materials are prone to rust and corrosion if rust prevention technology is not used during the preparation or transportation process. The commonly used rust prevention technology is to apply rust prevention oil or soak in a water-based rust inhibitor containing nitrite. However, experiments have shown that applying rust prevention oil causes certain difficulties in the subsequent cleaning of metal materials. Moreover, long-term and large-scale use of nitrite solution will cause certain damage to the body. Using too low a concentration will not only have a poor effect, but may also cause accelerated corrosion and rusting of ferrous metals. The mass concentration of common water-based metal rust inhibitors in the market is usually 0.5-10%, which leads to excessively high investment costs. Not only does it require too many chemicals to be added, but it also causes certain difficulties and cost waste in the subsequent treatment of industrial wastewater.

[0003] The minimum usage mass concentration of the water-based metal rust-proof powder in the present invention is 0.1%, which greatly reduces the investment cost of early chemical drugs, and the treatment of wastewater is also correspondingly simple, which has the advantages of low cost and greater market value. Summary of the invention

[0004] In order to solve a series of problems in the background technology such as the health hazards of nitrite solution to operators, the difficulty in cleaning anti-rust oil, the high cost of chemical drugs, and the difficulty in wastewater treatment, the present application invents a water-based metal anti-rust powder with ultra-low usage concentration.

[0005] The present invention applies for a water-based metal rust-proof powder with ultra-low usage concentration, which contains by mass percentage: 25-50% anhydrous sodium tetraborate, 0-10% sodium carbonate, 20-25% sodium hydroxide, 5-10% polycarboxylic acid (one or more thereof), and 30% azaphenyl ring polyaminocaproic acid. The polycarboxylic acid is one or more of dodecanedioic acid, sebacic acid, tridecanedioic acid, and 2,4,6-tris(aminocaproic acid)-1,3,5-triazine, and azaphenyl ring polyaminocaproic acid is a tetracarboxylic acid. Patent CN201910984891.1 describes in detail the synthesis method of tetracarboxylic acid metal rust-proof powder.

[0006] Production method First, mix 5-10% of polycarboxylic acid and 20-30% of azaphenyl ring polyaminocaproic acid, stir evenly, then add 0-10% of sodium carbonate, stir evenly, then add 25%-50% of anhydrous sodium tetraborate, stir evenly, and finally add 20-25% of sodium hydroxide, stir evenly to obtain water-based metal rust-proof powder, and then package it. DETAILED DESCRIPTION Example

[0007] The invention discloses a water-based metal anti-rust powder with ultra-low use concentration, comprising, by mass percentage, 30% of anhydrous sodium tetraborate, 10% of sodium carbonate, 25% of sodium hydroxide, 5% of dodecanedioic acid, and 30% of azaphenyl ring polyaminocaproic acid.

[0008] Production method: First mix 5% of dodecanedioic acid and 30% of azaphenyl ring polyaminocaproic acid, stir evenly, then add 10% of sodium carbonate, stir evenly, then add 30% of anhydrous sodium tetraborate, stir evenly, finally add 25% of sodium hydroxide, stir evenly to obtain water-based metal anti-rust powder, and then package it. Example

[0009] The invention discloses a water-based metal anti-rust powder with ultra-low use concentration, comprising, by mass percentage, 25% of anhydrous sodium tetraborate, 10% of sodium carbonate, 25% of sodium hydroxide, 5% of dodecanedioic acid, 5% of 2,4,6-tris(aminocaproic acid)-1,3,5-triazine, and 30% of azaphenyl ring polyaminocaproic acid.

[0010] Production method: First, mix 5% of dodecanedioic acid, 5% of 2,4,6-tris(aminocaproic acid)-1,3,5-triazine, and 30% of azaphenyl ring polyaminocaproic acid, stir evenly, then add 10% of sodium carbonate, stir evenly, then add 25% of anhydrous sodium tetraborate, stir evenly, and finally add 25% of sodium hydroxide, stir evenly to obtain a water-based metal anti-rust powder, and then package it. Example

[0011] The invention discloses a water-based metal anti-rust powder with ultra-low use concentration, comprising, by mass percentage, 30% of anhydrous sodium tetraborate, 10% of sodium carbonate, 25% of sodium hydroxide, 5% of 2,4,6-tris(aminocaproic acid)-1,3,5-triazine, and 30% of azaphenyl ring polyaminocaproic acid.

[0012] Production method: First, mix 5% of 2,4,6-tris(aminocaproic acid)-1,3,5-triazine and 30% of azaphenyl ring polyaminocaproic acid, stir evenly, then add 10% of sodium carbonate, stir evenly, then add 30% of anhydrous sodium tetraborate, stir evenly, and finally add 25% of sodium hydroxide, stir evenly to obtain water-based metal rust-proof powder, and then package it. Example

[0013] The invention discloses a water-based metal anti-rust powder with ultra-low use concentration, comprising, by mass percentage, 50% of anhydrous sodium tetraborate, 20% of sodium hydroxide, 10% of sebacic acid, and 20% of azobenzene ring polyaminocaproic acid.

[0014] Production method: First mix 10% of sebacic acid and 20% of azobenzene ring polyaminocaproic acid, stir evenly, then add 50% of anhydrous sodium tetraborate, stir evenly, and finally add 20% of sodium hydroxide, stir evenly to obtain water-based metal anti-rust powder, and then package it. Example

[0015] The invention discloses a water-based metal anti-rust powder with ultra-low use concentration, comprising, by mass percentage, 50% of anhydrous sodium tetraborate, 20% of sodium hydroxide, 10% of tridecanedioic acid, and 20% of azaphenyl ring polyaminocaproic acid.

[0016] Production method: First, mix 10% of tridecanedioic acid and 20% of azaphenyl ring polyaminocaproic acid, stir evenly, then add 50% of anhydrous sodium tetraborate, stir evenly, and finally add 20% of sodium hydroxide, stir evenly to obtain water-based metal anti-rust powder, and then package it.

Claims

1. A water-based metal rust inhibitor with ultra-low usage concentration, characterized in that: The composition comprises, by mass percentage, 25-50% anhydrous sodium tetraborate, 0-10% sodium carbonate, 20-25% sodium hydroxide, 5-10% polycarboxylic acid (one or more thereof), and 30% azabenzene ring polyaminocaproic acid. The polycarboxylic acid is one or more of dodecanedioic acid, sebacic acid, tridecanedioic acid, and 2,4,6-tris(aminocaproic acid)-1,3,5-triazine.

2. The water-based metal rust inhibitor with ultra-low usage concentration according to claim 1, characterized in that: First, mix 5-10% of polycarboxylic acid and 20-30% of azaphenyl ring polyaminocaproic acid, stir evenly, then add 0-10% of sodium carbonate, stir evenly, then add 25%-50% of anhydrous sodium tetraborate, stir evenly, and finally add 20-25% of sodium hydroxide, stir evenly to obtain water-based metal rust-proof powder, and then package it.

3. The ultra-low concentration water-based metal rust inhibitor according to claim 1, characterized in that: Suitable for ferrous metals such as cast iron, steel and stainless steel.

4. The ultra-low concentration water-based metal anti-rust powder according to claim 1, characterized in that: The method of use may be one or more of soaking, spraying, and brushing.

5. The ultra-low concentration water-based metal rust-proof powder according to claims 1 and 2 only expresses part of the embodiments of the present invention, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the patent of the present invention, which all belong to the protection scope of the patent of the present invention.