Water-based antirust preparation technique
A water-based anti-rust agent and technology of preparation process, which is applied in the field of non-nitrite water-based anti-rust agent, can solve the problem of nitrite being highly toxic, achieve low processing cost, simple production process, and good use effect Effect
Inactive Publication Date: 2008-02-27
冯为民
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Problems solved by technology
However, nitrite is highly toxic and is an internationally recognized carcinogen. Industrial developed countries have strictly restricted the use and discharge of sodium nitrite in terms of environmental protection regulations until it is banned.
Method used
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[0007] specific implementation plan
[0008] Mix 2 parts of triethylenetetramine and 5 parts of sebacic acid in a reaction kettle, heat up to 130-150°C, and after 40 minutes, add 3 parts of triisopropanolamine into the reaction kettle and stir evenly for 10 minutes to prepare have to.
[0009] Put the workpiece after degreasing, derusting and water washing into the antirust agent of the present invention for 1 minute, then take it out to dry or dry, so that the finished product can achieve the antirust effect.
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The present invention relates to a water-base metal antirusting agent and its preparation method. Said preparation method includes the following steps: mixing 2 portions of triethylene tetraine and 5 portions of sebacic acid in a reactor, heating to 130deg.C-150deg.C, after 40min, adding 3 portions of tri-isopropanolamine in said reactor and uniformly stirring them for 10min so as to obtain the invented product.
Description
[0001] technology field, [0002] The invention relates to a water-based metal antirust agent, which is used for the antirust of ferrous metals in the mechanical processing and manufacturing industry, and particularly relates to a non-nitrite water-based antirust agent. Background technique [0003] At present, most of the ferrous metal water-based rust inhibitors used in the machining and manufacturing industries (such as automobile manufacturing) contain sodium nitrite. Nitrite-based water-based antirust agent has obvious advantages such as low price, good effect and convenient use, so it is widely used. However, nitrite is highly toxic and is an internationally recognized carcinogen. Industrial developed countries have strictly restricted the use and discharge of sodium nitrite in terms of environmental protection regulations until it is banned. Contents of the invention [0004] The purpose of the present invention is to provide a preparation process of a water-based an...
Claims
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Inventor 冯为民
Owner 冯为民
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