Detection test paper for content of micro-water in aviation fuel and preparation method of detection test paper

A technology for aviation fuel and test paper, which is applied in the direction of material analysis by observing the influence on chemical indicators, and analysis by chemical reaction of materials, etc., can solve the problem of difficulty in judging the failure of test paper, short validity period of test paper, and existence of use Risks and other issues, to achieve the effect of easy detection, easy judgment, and long maintenance time

Inactive Publication Date: 2017-07-28
THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light green color is similar to the yellow color of the test paper itself, and the color difference is not obvious at 30ppm, which may easily lead to misjudgment
The validity period of the test paper used by the British Shell company is very short, only 9 months; moreover, it is difficult to judge when the test paper fails, and there are risks in use

Method used

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  • Detection test paper for content of micro-water in aviation fuel and preparation method of detection test paper
  • Detection test paper for content of micro-water in aviation fuel and preparation method of detection test paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this example, sodium ferrocyanide (Na 4 [Fe(CN) 6 ]·3H 2 O) and FeCl 3 ·6H 2 O preparation detection test paper, concrete preparation method is as follows:

[0031] S1: Sodium ferrocyanide (Na 4 [Fe(CN) 6 ]·3H 2 O) and FeCl 3 ·6H 2 O was dried to constant weight respectively, and then mixed uniformly with a molar ratio of 1:1 to obtain a detection composition;

[0032] S2: Dry the white filter paper (dried in an oven at 80°C), and then in a nearly anhydrous infrared drying oven, use electrostatic powder spraying technology to evenly coat the detection composition on one side of the dried white filter paper , coating amount is 2mg / cm 2 , get test paper.

[0033] Effect detection: use the test paper to measure aviation fuel with different free water content, the results obtained are: yellow (0ppm), light yellow-green spots (10ppm), yellow-green spots (20ppm), green spots (30ppm), blue spots (40ppm), dark blue spots (50ppm); the specific results are as follo...

Embodiment 2

[0035] In this example, sodium ferrocyanide (Na 4 [Fe(CN) 6 ]·3H 2 O) and FeCl 3 ·6H 2 O, mixed with different molar ratios to prepare different groups of detection test papers, the specific preparation method is as follows:

[0036] S1: Sodium ferrocyanide (Na 4 [Fe(CN) 6 ]·3H 2 O) and FeCl 3 ·6H 2 O were dried to constant weight, and then mixed uniformly at molar ratios of 10:1, 7:1, 4:1, 1:1, 1:4, 1:7, 1:10 to obtain different groups of detection combinations thing;

[0037] S2: Dry the white filter paper (dried in an oven at 80°C), and then in a nearly anhydrous infrared drying oven, use electrostatic powder spraying technology to evenly coat different groups on one side of the dried white filter paper. For other detection compositions, the coating amount is 2mg / cm 2 , to obtain different groups of test papers.

[0038] Effect detection: use the different detection test papers prepared above to store, and measure the storage period (shelf life), and the specifi...

Embodiment 3

[0042] In this example, sodium ferrocyanide (Na 4 [Fe(CN) 6 ]·3H 2 O) and FeCl 3 ·6H 2 O, mixed with different molar ratios to prepare different groups of detection test papers, the specific preparation method is as follows:

[0043] S1: Sodium ferrocyanide (Na 4 [Fe(CN) 6 ]·3H 2 O) and FeCl 3 ·6H 2 O were dried to constant weight, and then mixed uniformly at molar ratios of 10:1, 2:1, 1:1.5, 1:1, 1.5:1, 2:1, 1:10 to obtain different groups of detection combinations thing;

[0044] S2: Dry the white filter paper (dried in an oven at 80°C), and then in a nearly anhydrous infrared drying oven, use electrostatic powder spraying technology to evenly coat different groups on one side of the dried white filter paper. For other detection compositions, the coating amount is 2mg / cm 2 , to obtain different groups of test papers.

[0045] Effect test: Use the different test papers prepared above to test aviation fuel containing 30ppm free water, and compare the water color re...

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Abstract

The invention relates to detection test paper for the content of micro-water in aviation fuel and a preparation method of the detection test paper. The detection test paper comprises filter paper and a detection composition, wherein the surface of the filter paper is uniformly coated with the detection composition; the detection composition comprises a first component and a second component; the first component is selected from cyanate and/or thiocyanate; and the second component comprises one or more metal ions of Fe<2+>, Fe<3+>, Cu<2+>, Cu<+> and Co<2+>. The preparation method comprises the following steps: uniformly mixing the first component and the second component, and coating the surface of the white filter paper with the mixture, thus obtaining the detection test paper. The detection test paper provided by the invention is changed in color in water; the obviousness of the color change has a corresponding relation with a water content range at 5 to 50 ppm; at a water content critical point of 30 ppm, the color changes obviously; at a low free water content, such as 10 ppm, developing can be realized sensitively, and the detection test paper is convenient to use; and moreover, the preparation method is simple, low in cost and long in storage period.

Description

technical field [0001] The invention relates to the technical field of aviation fuel moisture detection, in particular to a test paper for detecting trace water content of aviation fuel and a preparation method thereof. Background technique [0002] Aviation fuel (including aviation gasoline and jet fuel) often contains dissolved water and free water. Dissolved water will not change the appearance of the fuel. Fine water droplets are dispersed and suspended in the fuel oil. Moisture content in fuel oil will change due to environmental influences during transportation, storage, and use. For example, the moisture content in the oil will increase due to the residual moisture in the transportation equipment (pipelines, tank trucks, tankers) and oil storage tanks after cleaning, or the equipment is not tightly sealed and affected by rain, snow, and high-humidity atmosphere. The dissolved water in the fuel will not directly affect the safety of use, but will be converted into fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78
Inventor 柳华夏祖西向海王文武周宁祝鹏
Owner THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA
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