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Polyalcohol condensed glycerol corrosion inhibitor and preparation method thereof

A technology of polyols and corrosion inhibitors, which is used in the field of corrosion inhibitors compounded with various metal corrosion inhibitors and its preparation, can solve the problems of toxicity and single function, and achieve the effect of strong water absorption

Inactive Publication Date: 2013-01-23
李舰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has a single function and can only prevent or slow down a single metal corrosion; and its use, except for delaying metal corrosion, has not been used as a lubricant, humectant, and refrigerant at the same time; the corrosion inhibitor used by people It is mostly soluble in organic solvents and has certain toxicity

Method used

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  • Polyalcohol condensed glycerol corrosion inhibitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of polyol condensed glycerin corrosion inhibitor, it is made up of following components by weight percentage:

[0023] Benzotriazole 0.2 kg;

[0024] Zinc gluconate 0.5 kg;

[0025] Alkanol 0.3 kg;

[0026] Sodium alginate 0.2 kg;

[0027] Sodium gluconate 4 kg;

[0028] α-hydroxyphosphonic acid 0.5 kg;

[0029] Polyol condensed glycerin 94.3 kg,

[0030] According to the above weight, add polyol condensed glycerol to sodium alginate and zinc gluconate in the reaction kettle, heat to 90°C for stirring and compounding, heat to 90°C, then add benzotriazole and alkanol and heat to Stir and compound at 90°C, then add α-hydroxyphosphineacetic acid and sodium gluconate, heat to 90°C for stirring and compounding, then heat to 135°C for stirring and boiling, then add activated carbon for decolorization, cool to 90°C and 90°C Next, stirring and filtering are carried out, and then cooled to below 50° C. for packaging to complete the preparation process and form 100 k...

Embodiment 2

[0032] A kind of polyol condensed glycerin corrosion inhibitor, it is made up of following components by weight percentage:

[0033] Benzotriazole 0.1%;

[0034] Zinc Gluconate 0.5%;

[0035] Alkanol 0.3%;

[0036] Sodium Alginate 0.1%;

[0037] Sodium Gluconate 4%;

[0038] α-Hydroxyphosphonoacetic acid 0.5%;

[0039] Polyol Condensed Glycerin 94.5%,

[0040] Add polyol condensed glycerin to sodium alginate and zinc gluconate in the reaction kettle according to the above weight percentage, heat to 90°C for stirring and compounding, heat to 90°C, then add benzotriazole and alkanol, Heat to 90°C and stir for compounding, then add α-hydroxyphosphineacetic acid and sodium gluconate, heat to 90°C for stirring and compounding, then heat to 135°C for stirring and boiling, then add activated carbon for decolorization, cool to 90°C and Below 90°C, stir and filter, then cool to below 50°C for packaging, complete the preparation process, and form a product.

Embodiment 3

[0042] A kind of polyol condensed glycerin corrosion inhibitor, it is made up of following components by weight percentage:

[0043] Benzotriazole 0.3%;

[0044] Zinc Gluconate 0.7%;

[0045] Alkanol 0.5%;

[0046] Sodium Alginate 0.1%;

[0047] Sodium Gluconate 6%;

[0048] α-Hydroxyphosphonoacetic acid 0.4%;

[0049] Polyol Condensed Glycerin 92%,

[0050]According to the above weight percentage, add polyol condensed glycerol to sodium alginate and zinc gluconate in the reactor, heat to 90°C for stirring and compounding, heat to 90°C, then add benzotriazole and alkanol, Heat to 90°C and stir for compounding, then add α-hydroxyphosphineacetic acid and sodium gluconate, heat to 90°C for stirring and compounding, then heat to 135°C for stirring and boiling, then add activated carbon for decolorization, cool to 90°C and Below 90°C, stir and filter, then cool to below 50°C for packaging, complete the preparation process, and form a product.

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Abstract

The invention discloses a polyalcohol condensed glycerol corrosion inhibitor which is prepared from the following components in percentage by weight: 0.1-0.3% of benzotriazole, 0.3-0.7% of zinc gluconate, 0.1-0.5% of alkylamino alcohol, 0.1-0.3% of sodium alginate, 2-6% of sodium gluconate, 0.3-0.6% of alpha-hydroxy phosphonoacetic acid and the balance of polyalcohol condensed glycerol. The preparation method comprises the following steps: adding sodium alginate and zinc gluconate into polyalcohol condensed glycerol, heating to 90 DEG C while stirring, adding benzotriazole and alkylamino alcohol, adding the rest components, compounding by stirring, heating to 135 DEG C, decocting while stirring, and decoloring. The polyalcohol condensed glycerol corrosion inhibitor can be mixed with water, has the characteristics of no toxicity, moisture retention property, lubricating property, antifreezing property and no pollution, and has a protective function of inhibiting corrosion of copper, aluminum, iron, zinc, tin, carbon steel, manganese steel and silicon steel; and the polyalcohol condensed glycerol corrosion inhibitor can be used for producing automobile coolant and antifreezing fluid, can be used as a corrosion-inhibition antifreezing agent and a bactericidal antiscaling corrosion inhibitor, and is a favorable antirust humectant, lubricant, antifreezing agent, thickening agent, adhesive, softener and corrosion inhibitor in the industries of printing and dyeing, papermaking, toupees, washing agents and the like.

Description

technical field [0001] The invention relates to a corrosion inhibitor suitable for various metal materials, in particular to a corrosion inhibitor compounded with polyhydric alcohol condensed glycerin and various metal corrosion inhibitors and a preparation method thereof. Background technique [0002] A corrosion inhibitor is a chemical substance or a mixture of several chemical substances that can prevent or slow down the corrosion of metal surfaces when present in the environment (medium) in an appropriate concentration and form. At present, the corrosion inhibitors used by people include inorganic compound corrosion inhibitors and organic compound corrosion inhibitors. It has a single function and can only prevent or slow down a single metal corrosion; and its use, except for delaying metal corrosion, has not been used as a lubricant, humectant, and refrigerant at the same time; the corrosion inhibitors used by people It is more soluble in organic solvents and has certa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F11/173C08L71/08
Inventor 李舰
Owner 李舰