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Intermediate and phosphorizing agent prepared thereby and preparation process thereof

A phosphating agent and intermediate technology, applied in the field of phosphating agent and its preparation, can solve the problems affecting the quality, output and cost of coating production, many restrictions on the use of phosphating agent, high transportation cost and storage cost, etc. Achieve the effect of reducing transportation cost and storage cost, saving transportation cost and storage cost, and convenient transportation

Inactive Publication Date: 2008-12-17
赵惠霖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, various phosphating agents (also known as phosphating solutions) used in the surface treatment of steel objects are all prepared at one time, but there are problems of inconvenient transportation, high transportation costs and high storage costs.
Although these phosphating agents can basically meet the needs of coating production, there are problems of unsatisfactory phosphating effect to varying degrees, many restrictions on the use of phosphating agents, high temperature requirements for the use environment, and high energy consumption; And basically there is a lot of waste residue discharge, and there is a need to solve the pollution problem caused by the secondary discharge of waste residue
The above problems directly affect the quality, output and cost of coating production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1. The intermediates and phosphating agents prepared therefrom were prepared as follows.

[0035] a. Prepare the intermediate according to the following steps; add 27.5Kg of manganese dihydrogen phosphate, 12.5Kg of zinc nitrate, 0.055Kg of ammonium EDTA, 8.5Kg of calcium nitrate, and 3Kg of water under stirring, and mix well to obtain the intermediate. Intermediates can be supplied to manufacturers or users of phosphating agents as independent products.

[0036] b, prepare the phosphating agent prepared by the intermediate according to the following steps; (1) add 0.25Kg of zinc dihydrogen phosphate, 1.3Kg of zinc oxide, 4.5Kg of methyl ethyl ketone or acetone, 0.045Kg of hydroquinone, phosphoric acid under stirring 4Kg, water 20Kg, hexamethylenetetramine 0.03Kg, mix well to get product A. (2) Add the intermediate to product A, and mix well to obtain the finished product. Hexamethylenetetramine is a sustained release agent.

[0037] The intermediate provide...

Embodiment 2

[0038] Example 2. The intermediates and phosphating agents prepared therefrom were prepared as follows.

[0039] a. Prepare the intermediate according to the following steps; add 26Kg of manganese dihydrogen phosphate, 11Kg of zinc nitrate, 0.03Kg of ammonium EDTA, 7.5Kg of calcium nitrate, and 2Kg of water under stirring, and mix well to obtain the intermediate.

[0040] b. The phosphating agent prepared by the intermediate is prepared according to the following steps; (1) 0.15Kg of zinc dihydrogen phosphate, 0.8Kg of zinc oxide, 3.5Kg of methyl ethyl ketone, 0.035Kg of hydroquinone and 3.3Kg of phosphoric acid are added under stirring , water 17Kg, mix well to get A product. (2) Add the intermediate to product A, and mix well to obtain the finished product.

Embodiment 3

[0041] Example 3. The intermediates and phosphating agents prepared therefrom were prepared as follows.

[0042] a. Prepare the intermediate according to the following steps; add 30Kg of manganese dihydrogen phosphate, 15Kg of zinc nitrate, 0.1Kg of ammonium EDTA, 10Kg of calcium nitrate, and 5Kg of water under stirring, and mix well to obtain the intermediate.

[0043] b, prepare the phosphating agent prepared by the intermediate according to the following steps; (1) add under stirring 0.4Kg of zinc dihydrogen phosphate, 2Kg of zinc oxide, 6Kg of methyl ethyl ketone, 0.06Kg of hydroquinone, 5Kg of phosphoric acid, and 25Kg of water , and mix well to get A product. (2) Add the intermediate to product A, and mix well to obtain the finished product.

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PUM

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Abstract

The invention discloses an intermediate, a phosphating agent prepared using the intermediate and a preparation method thereof. The intermediate uses manganese dihydrogen phosphate, zinc nitrate, ammonium ethylenediaminetetraacetate, calcium nitrate and water as raw materials, and is prepared by stirring and mixing. Phosphating agents prepared using intermediates are prepared by using zinc dihydrogen phosphate, zinc oxide, methyl ethyl ketone (or acetone), hydroquinone and water as raw materials, stirring and mixing, and then adding intermediates. The intermediate of the present invention can reduce transportation costs and warehousing costs. The phosphating agent prepared with it can be used in the coating process at normal temperature, and can also be used as a phosphating agent in the drawing process of steel wire ropes and special steel wires. It can also be used as a phosphating agent for cold extrusion and cold forging production. The raw materials prepared by the invention are cheap, can be used at normal temperature, have good phosphating effect, fast phosphating speed, which only takes a few seconds, are non-corrosive, non-toxic, harmless and pollution-free, have almost no waste residue emissions, and can be reused many times. ,long time.

Description

Technical field [0001] The invention relates to an intermediate, a phosphating agent prepared using the intermediate and a preparation method thereof. Background technique [0002] Phosphating the surface of steel objects is an important process in the steel coating process. At present, various phosphating agents (also known as phosphating liquids) used in surface treatment of steel objects are all prepared at one time, but there are problems such as inconvenient transportation, high transportation costs and high storage costs. Although these phosphating agents can basically meet the needs of coating production, they have problems such as unsatisfactory phosphating effects to varying degrees, many restrictions on the use of phosphating agents, high temperature requirements for the use environment, and high energy consumption; And basically there is a lot of waste residue discharged, and there is a need to solve the pollution problem caused by the secondary discharge of wast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/07
Inventor 赵惠霖
Owner 赵惠霖
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