Method for determining un-voltatile residue and relative carbon-content in solid sample

Abstract

The invention relates to a method of testing the no volatilized residuum and the relative carbon amount in the solid test specimen, puts the test specimen into the heat-resisting vessel and under the isolation air condition after separately heats the certain time with the heater in the 750-850 deg,950-1050 deg, 1050-1150 deg three temperature areas weighing and computing the no volatilized residuum and the relative carbon amount according to the following formula; the method has good isolation effect with air and the long heat time, can fully drive out the volatile matter but not to affect the residuum character, the three temperature areas tubular heat up structure is simple, operation simple bright and is easy to make the processing, the observation data reduction mathematical formula simply, is easy to grasp, the test entire process and the atmosphere even more approach the stove return original state process of the electric heating to smelt the aluminum silicon alloy, the obtained result has a better instruction.

Description

technical field [0001] The invention relates to a determination method, in particular to a method for determining the non-volatile residue and relative carbon content in a solid sample. Background technique [0002] At present, the commonly used measurement methods for non-volatile residues such as ash mostly use the coal industrial analysis method provided by the national standard GB / T212-1991 of the People's Republic of China. This method has a wide range of applications, but it is not suitable for some special production processes. It is said that the measurement results are rough, not accurate enough, and have poor guidance for the real production process, especially in the process of smelting aluminum-silicon alloys by electrothermal method, the content of unvolatile residues and relative carbon content in the raw materials and pellets used is very important for controlling the production process. It is very important to stabilize the composition content and ensure the ...

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used measurement methods for non-volatile residues such as ash mostly use the coal industrial analysis method provided by the national standard GB / T212-1991 of the People's Republic of China. This method has a wide range of applications, but it is not suitable for some special production processes. It is said that the measurement results are rough, not accurate enough, and have poor guidance for the real production process, especially in the process of smelting aluminum-silicon alloys by electrothermal method, the content of unvolatile residues and relative carbon content in the raw materials and pellets used is very important for controlling the production process. It is very important to stabilize the composition content and ensure the normal and stable smelting. The industrial analysis method of coal provided by the national standard GB / T 212-1991 is not enough to meet the needs of accurate control

Images