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Compound corrosion inhibitor for flower plant and a preparation method and application thereof

A corrosion inhibitor and plant technology, applied in the field of materials, can solve problems such as equipment corrosion, operational errors, and environmental pollution, and achieve the effect of low cost and safe use

Inactive Publication Date: 2019-12-10
SOUTHWEST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the pickling corrosion inhibitors are aimed at the corrosion inhibition of a single acid species and a single metal. They have strong specificity and large difference in effect. Some of them have unstable chemical properties and need to be configured on site. The risk of equipment corrosion accidents is relatively high, and most corrosion inhibitors have problems such as high price, high toxicity, and environmental pollution. Therefore, it is very necessary to develop a compound corrosion inhibitor that can be prepared by using the flower plant lantana

Method used

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  • Compound corrosion inhibitor for flower plant and a preparation method and application thereof
  • Compound corrosion inhibitor for flower plant and a preparation method and application thereof
  • Compound corrosion inhibitor for flower plant and a preparation method and application thereof

Examples

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preparation example Construction

[0022] The specific operation of the preparation method of Lantana extract of the present invention is as follows:

[0023] A. Pre-treatment: After collecting lantana, air-dry it and put it in a blast oven, dry it at a constant temperature of 60°C for 48-60 hours, take out the lantana powder that is naturally cooled to room temperature and pulverize, and the particle size is 300-1000 μm;

[0024] B. Extraction: Soak lantan powder in 20-60% ethanol solution at room temperature (10-30°C) for 2-4 hours, solid-liquid ratio 1:20-40, then reflux in a water bath at 50-80°C for 2-6 hours ;

[0025] C. Concentration: vacuum filter the ethanol extract obtained by reflux to remove the lantana residue powder contained in it, and then take it on a rotary evaporator at 40~80°C to concentrate the solution to 1 / 2~1 / 3 volume ;

[0026] D. Extraction: Add 2~5 times the volume of petroleum ether to the concentrated ethanol extract, shake it fully and let it stand for 12~48 hours, separate the ...

Embodiment 1

[0032] ——Preparation of Lantana Extract

[0033] A. Pre-treatment: After collecting lantana, put it in a blast oven after air-drying, and dry it at a constant temperature of 60-70°C for 60-72 hours, take out the lantana powder that is naturally cooled to room temperature and pulverize, and the particle size is 150-2000 μm;

[0034] B. Extraction: Soak lantan powder in 10-70% ethanol solution at room temperature (5-35°C) for 2-6 hours, solid-liquid ratio 1:25-50, then reflux in a water bath at 60-85°C for 3-9 hours ;

[0035] C. Concentration: Vacuum filter the ethanol extract obtained by reflux to remove the lantana residue powder contained in it, and then take it on a rotary evaporator at 45~75°C to concentrate the solution to 1 / 4~1 / 2 volume ;

[0036] D. Extraction: Add 2~6 times the volume of petroleum ether to the concentrated ethanol extract, shake it fully and let it stand for 15~60 hours, separate the upper layer of petroleum ether from the lower layer of the extract,...

Embodiment 2

[0039] ——A compound metal corrosion inhibitor of flowers and plants

[0040] Get Example 1 lantana extract 0.10 g, polyvinyl alcohol 0.5 g, cetyltrimethylammonium bromide 0.5 g, diethylenetriaminepentaacetic acid 0.1 g, add a volume of 0.5 ~ 5.0 concentration of 1 L mol / L hydrochloric acid washing solution, and stir evenly to obtain the target plant compound corrosion inhibitor.

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Abstract

The invention discloses a compound corrosion inhibitor for a flower plant and a preparation method and application thereof. The compound corrosion inhibitor for the flower plant comprises 0.1-1.0 g / Lof lantana camara extract, 0.05-0.5 g / L of high polymer polyvinyl alcohol, 0.1-0.5 g / L of cationic surfactant, 0.01-0.1 g / L of diethylenetriamine pentaacetic acid, and the balance pickling solution. The preparation method is that the raw materials in the formula proportion are mixed and stirred uniformly to obtain the target compound corrosion inhibitor for the flower plant. The application is theapplication of the compound corrosion inhibitor for the flower plant in the pickling of steel materials.

Description

technical field [0001] The invention belongs to the field of material technology, and in particular relates to a compound corrosion inhibitor for flowers and plants, a preparation method and application thereof. Background technique [0002] Lantana camara (Latin scientific name: Lantana camara L.) Alias: seven sisters, five-color plum, five-dragon orchid, Ruyi grass, colorful flower, smelly grass, smelly golden phoenix, Wuleidan, five-color hydrangea, color-changing grass, etc., known by Hakkas It is called Mianbi male flower, which is beautiful in flowers and is often cultivated in gardens all over my country for ornamental purposes. The roots, leaves, and flowers are used medicinally to clear away heat and detoxify, relieve stagnation, relieve pain, dispel wind and relieve itching; it can treat malaria, tuberculosis, cervical lymphatic tuberculosis, mumps, stomach pain, and rheumatic bone pain. Most of the pickling corrosion inhibitors are aimed at the corrosion inhibitio...

Claims

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Application Information

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IPC IPC(8): C23G1/06C23G1/08
CPCC23G1/06C23G1/08C23G1/081C23G1/083
Inventor 李向红邓书端杜官本
Owner SOUTHWEST FORESTRY UNIVERSITY
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