Rapid analysis method for major elements, minor elements and trace elements in alloy slag charge

A trace element, rapid analysis technology, applied in the field of analysis and testing, can solve the problems of poor representativeness, small sampling amount, easy to pollute the environment, etc., to achieve a good guiding role and reduce detection costs.

Inactive Publication Date: 2020-03-06
JIANGSU LONGDA SUPERALLOY MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the detection of alloy slag, the traditional method is to directly dissolve a large amount of mixed strong acid for a long time, and then use chemical analysis or ICP-AES, ICP-MS, AAS and other methods for wet detection. When processing, a large amount of strong acid and various redox, color and complexing agents are required to easily pollute the environment; the analysis cycle is long and cannot meet the large detection volume; the sampling volume is small, especially for alloy slag samples, which has poor representativeness and poor accuracy

Method used

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  • Rapid analysis method for major elements, minor elements and trace elements in alloy slag charge
  • Rapid analysis method for major elements, minor elements and trace elements in alloy slag charge

Examples

Experimental program
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Effect test

Embodiment 1

[0023] a. Take about 250g of K417 casting high-temperature alloy blade slag material, with a diameter ranging from 0.5 to 10mm. Put the above-mentioned alloy slag material into the prepared lye, and add potassium hydroxide to every 100g of water. 5g, 18g of sodium hydroxide and 5mL of saturated ammonia water. The lye is heated to 80°C for ultrasonic cleaning for 5 minutes, and then continuously cleaned with pure water. Mix organic reagents with ultrasonic cleaning for 5 minutes and then blow dry. The frequency of ultrasonic waves is 60-100KHz, and the power of ultrasonic waves is 50-1000W;

[0024] b. Put the alloy slag into the copper-based crucible of the MSM20-7 (non-consumable) metal smelting furnace and pile it up into a cone shape. The copper-based crucible is circulated with cooling water to prevent the copper-based crucible from melting. The base crucible has an inner diameter of 25 mm and a depth of 10 mm. After vacuuming the metal melting furnace, it is filled with a...

Embodiment 2

[0029] a. Take about 150g of deformed alloy milling material with a length of 0.5-20mm and grade K4169, wash it with pure water and put it into the lye consisting of 8g of potassium hydroxide, 15g of sodium hydroxide and 10mL of saturated ammonia water per 100g of water , heated the lye to 90°C and ultrasonically cleaned for 5 minutes, then continuously washed with pure water for 3 times, ultrasonically cleaned for 5 minutes in an organic reagent mixed with absolute ethanol, acetone and carbon tetrachloride at a volume ratio of 2:1:1, and then dried , the ultrasonic frequency is 60-100KHz, and the ultrasonic power is 50-1000W;

[0030] b. Put the alloy slag into the copper-based crucible of the MSM20-7 (non-consumable) metal smelting furnace and pile it up into a cone shape. The copper-based crucible is circulated with cooling water to prevent the copper-based crucible from melting. The base crucible has an inner diameter of 35 mm and a depth of 15 mm. After vacuuming the meta...

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Abstract

The invention relates to a rapid analysis method for major elements, minor elements and trace elements in alloy slag charge. The rapid analysis method comprises the following steps: performing ultrasonic alkaline liquid cleaning on alloy slag charge, cleaning with pure water, performing ultrasonic cleaning with an organic reagent and blow-drying, preparing a cake-shaped sample by using the alloy slag charge, pressing the cake-shaped sample, grinding, polishing, cleaning with the organic reagent and blow-drying, and analyzing major elements, minor elements and trace elements in the cake-shapedsample by using at least one instrument of a carbon-sulfur analyzer, an oxygen-nitrogen-hydrogen analyzer, a spectrograph, an X ray fluorescent spectrograph and a mass spectrometer. The method provided by the invention can optimize a combination according to detectability and ranges of the instruments and perform analytical determination on the major elements, minor elements and trace elements, and determination cost is reduced; and the method has good guiding effect on high-temperature alloy slag charge remelting and smelting.

Description

technical field [0001] The invention relates to a rapid analysis method for main, trace and trace elements in alloy slag, belonging to the technical field of analysis and testing. Background technique [0002] Every year, a large amount of alloy milling slag is produced in the world due to powder metallurgy, metal machining, etc., as well as waste high-temperature alloy blades that are forged and crushed into scraps after being dismantled from gas turbines and aircraft engine main engine overhauls. Very high economic value. It is necessary to find a suitable solution for the treatment and reuse of a large amount of backlog of alloy slag. Many slags can be processed by physical and chemical methods, classified, and re-melted into alloys, so that the alloy slag can be recycled and reused, so as to achieve effective reduction. cost purposes. The classification of alloy slag is an important part of recycling. It is related to the quality and performance of remelted alloys. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/202G01N33/2022G01N33/2028G01N1/28G01N1/32
CPCG01N1/28G01N1/286G01N1/32G01N33/202G01N33/2022G01N33/2028
Inventor 年季强陈颖杰尚爱花冯晨吕水永
Owner JIANGSU LONGDA SUPERALLOY MATERIAL CO LTD
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