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Analysis method for measuring element content in wax substance

An analysis method and technology for element content, which are applied in measurement devices, analysis materials, preparation of test samples, etc., can solve the problems of unfavorable production enterprises' popularization and application, low repeatability, and large test workload, etc., and reach the determination range of element content. Wide, high precision and accuracy, conducive to the effect of popularization and application

Pending Publication Date: 2022-01-14
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ICP-AES method can obtain the determination data of individual metal elements in the Fischer-Tropsch wax, but the pretreatment of the sample is cumbersome. It is necessary to burn the Fischer-Tropsch wax and dissolve the solid residue after combustion, and then use the standard sample to establish the work. Curve and other steps, the workload of each sample test is large, time-consuming, and the amount of wax used in the test is small, resulting in low repeatability
In addition, the instruments used for sample analysis and testing are expensive and costly, which is not conducive to the popularization and application in production enterprises

Method used

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  • Analysis method for measuring element content in wax substance
  • Analysis method for measuring element content in wax substance
  • Analysis method for measuring element content in wax substance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] No. 1 sample preparation: prepare a clean glass plate, top-selling XRF special PVC sample ring; take the No. 1 fee to the beaker, put it in the oven to wax melt, oven temperature> 100 ° C; use glass rod The melt was thoroughly stirred, and the glass rod needs to be placed in an oven while preheating with wax;

[0084] Watch: The sample is taken on the sample (the element containing the elements contained in the wax) or the overhead treatment such that the sample of the sample is higher than 10 mm.

[0085] Test: The impurity elements in Fisca wax are mainly introduced by the Fischer Catalyst, mainly including Fe, Mn, K, Cu and Si. Therefore, only five elements of Fe, Mn, K, Cu, and Si are selected when testing, and the specific test steps are as follows:

[0086] Fe Test: X-ray irradiates the fluorescent X-rays of FeKα on the wax sample, detecting the strength of FEKα fluorescence X-rays, wherein the detected voltage is 50 mA, X-ray intensity size, and a sample in the sample....

Embodiment 2

[0093] The conditions of this embodiment are the same as in Example 1, and the difference is only, and the No. 2 -10 fee of different metals is tested, and the specific results are shown in Table 1.

Embodiment 3

[0102] Sample preparation: Preparation method as in Example 1. Difference only in the No. 11 fee, to prepare the same two samples, record 11 samples and comparison 1 sample;

[0103] Drawing: Overhead treatment of No. 11 samples, so that the distance from the support sheet is higher than 10 mm, and the sample is not taken by the sample.

[0104] Test: Test Methods and Conditions The samples and comparison 1 samples were repeatedly tested three times in Example 1.

[0105] Test Results: The Fe content of the sample No. 1 sample No. 1 is 321 ppm, 322 ppm, 319 ppm; the Fe content of the 11th sample of the overhead treatment is 304 ppm, 302 ppm, 302 ppm, respectively. The sample No. 1 of the unknovated comparison was 18 ppm than the overhead, and the actual Fe content of the sample (ICP results) was 300 ppm. The reason for the X-ray penetration when the X-ray penetrated and illuminated to the support sample when there was no overhead test. The main component is Stainless steel, so the...

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Abstract

The invention provides an analysis method for measuring element content in wax, which comprises the following steps: S1, heating wax to obtain molten wax; s2, cooling the molten wax to shape the molten wax to obtain a test wax sample; and S3, detecting the element content in the obtained test wax sample by adopting an X-ray fluorescence spectrometry. According to the method, the X-ray fluorescence spectrometry is adopted for determining the elements in the wax, the method has the advantages of being simple in sample preparation, high in analysis speed (typical analysis time is about 5 min / sample), wide in element content determination range, free of standard samples, high in precision and accuracy and the like, and the sample analysis and test speed and precision can meet the requirements of production enterprises for rapid and accurate sample analysis and test.

Description

Technical field [0001] The present invention relates to a method of assaying an elemental content, and more particularly to a method of determining an elemental content of a wax substance. Background technique [0002] Today, more than 90% of Fischer Top waxes are synthesized by iron-based catalysts, and conventional iron-based fiscular components include Fe, Mn, K, and the like. The iron-based catalyst produces physical abrasion, chemical erosion, etc. during the Tropicos synthesis reaction, thereby generating the loss of catalyst fine powder or metal components, these metal-containing catalyst powders or metal particles due to the separation efficiency by the filter Influence, some will be extracted with the tubular wax, which makes the tubular wax contains trace metals, affecting the color and quality of the fee wax, and causes the reactor catalyst and its active components. Further, as the operation time is extended, the activity of the catalyst remaining in the reactor has g...

Claims

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Application Information

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IPC IPC(8): G01N23/223G01N23/2202G01N1/44
CPCG01N23/223G01N23/2202G01N1/44
Inventor 陈静允马琳鸽杨如意赵帅蒋复国孟祥堃李永龙
Owner CHNA ENERGY INVESTMENT CORP LTD