Corrosion inhibitor for calcium chloride antifreeze solution and preparation method thereof

A technology of antifreeze and corrosion inhibitor, which is applied in the field of corrosion inhibitor for calcium chloride antifreeze and its preparation, can solve the problems of expensive raw materials, complex synthesis process, and low corrosion inhibition efficiency, and achieve low cost, abundant sources, The effect of highly effective protective effect

Active Publication Date: 2012-09-12
迁安市净植知识产权代理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of existing corrosion inhibitors for calcium chloride antifreeze, such as expensive raw materials, complex synthesis process, low corrosion inhibition efficiency and serious environmental pollution, the purpose of the

Method used

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  • Corrosion inhibitor for calcium chloride antifreeze solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The concrete steps of a kind of corrosion inhibitor preparation method for calcium chloride antifreeze are as follows:

[0020] ① Preparation of extract

[0021] Take about 250 grams of fresh white orchid leaves, wash them, dry them in the shade, cut them into pieces, add about 5 liters of water (about 20 times the weight of the white orchid leaves), and carry out ultrasonic-assisted leaching at 90°C for 1 hour, cool, stand still, and filter , collecting the extracted crude liquid and heating and concentrating to about 0.5 liters to obtain an extract (equivalent to 500 grams of white orchid leaf extract contained in each liter of the extraction liquid based on fresh white orchid leaf raw materials).

[0022] ② Preparation of corrosion inhibitor

[0023] The additive benzotriazole is added to the extract prepared in step ①, and the mixture is evenly mixed by stirring to obtain a corrosion inhibitor for calcium chloride antifreeze. Wherein, the addition amount of benzot...

Embodiment 2

[0025] The concrete steps of a kind of corrosion inhibitor preparation method for calcium chloride antifreeze are as follows:

[0026] ① Preparation of extract

[0027] Take about 400 grams of fresh white orchid leaves, wash them, dry them in the shade, cut them into pieces, add about 6 liters of water (about 15 times the weight of the white orchid leaves), and carry out ultrasonic-assisted leaching at 88°C for 80 minutes, cool, stand still, and filter , collecting the extracted crude liquid and heating and concentrating to about 1 liter to obtain an extract (equivalent to 400 grams of the white orchid leaf extract contained in each liter of the extract based on fresh white orchid leaf raw materials).

[0028] ② Preparation of corrosion inhibitor

[0029] The additive tolutriazole is added to the extract prepared in step ①, and stirred to mix evenly to obtain a corrosion inhibitor for calcium chloride antifreeze. Wherein, the addition of tolylbenzotriazole is about 0.0002% o...

Embodiment 3

[0031] The concrete steps of a kind of corrosion inhibitor preparation method for calcium chloride antifreeze are as follows:

[0032] ① Preparation of extract

[0033] Take fresh white orchid leaves weighing about 450 grams, wash them, dry them in the shade, cut them into pieces, add about 8 liters of water (about 18 times the weight of the white orchid leaves), and carry out ultrasonic-assisted leaching at 86°C for 1.5 hours, cool, stand still, and filter , collecting the extracted crude liquid and heating and concentrating to about 1 liter to obtain an extract (equivalent to 450 grams of the white orchid leaf extract contained in each liter of the extraction liquid based on fresh white orchid leaf raw materials).

[0034] ② Preparation of corrosion inhibitor

[0035] The additive tolutriazole is added to the extract prepared in step ①, and stirred to mix evenly to obtain a corrosion inhibitor for calcium chloride antifreeze. Wherein, the addition amount of tolyl benzotria...

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Abstract

The invention belongs to the technical field of metal material corrosion protection and particularly relates to a corrosion inhibitor for calcium chloride antifreeze solution and a preparation method thereof. The corrosion inhibitor for calcium chloride antifreeze solution is prepared by adding trace additives into leaf extracting solution of magnoliaceae michelia deciduous tree michelia. The corrosion inhibitor has the advantages of being abundant in raw material source and low in cost and having good corrosion-inhibiting effects on various metal including steel, iron, copper, tin, aluminum and the like, and the preparation method has the advantages of being simple in process, convenient to operate, environment-friendly and convenient for industrial production and the like.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion of metal materials, and in particular relates to a corrosion inhibitor for calcium chloride antifreeze and a preparation method thereof. Background technique [0002] Antifreeze is an indispensable cooling and heat dissipation medium for various vehicle engine cooling systems. At present, the general-purpose engine antifreeze is mainly ethylene glycol type (that is, it is composed of water and ethylene glycol in proportion), which has a good effect on the cooling system. Anti-corrosion effect, but the high cost greatly restricts the use of ethylene glycol. In order to reduce the cost of antifreeze, it is an important choice to find other alternative products. [0003] At present, high-concentration calcium chloride solution, which is widely used in various types of refrigerators and equipment and occasions that need to lower the freezing point, has become the most suitable solution due to ...

Claims

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Application Information

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IPC IPC(8): C23F11/14C09K5/20
Inventor 李凌杰雷惊雷谢昭明王俊颖何建新潘复生
Owner 迁安市净植知识产权代理有限公司
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