Method for measuring content of copper, tellurium, gold and silver in copper telluride
A method of determination, technology of copper telluride, used in measuring devices, chemical analysis by titration, instruments, etc.
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Embodiment 1
[0081] Weigh 5.0034g (m 0 ) sample in a 500mL tall beaker, add a small amount of water, soak the sample, boil for a while, take it out and cool it slightly, add 15mL sulfuric acid (analytical pure), cover with a watch glass, place it on an electric heating plate to heat and dissolve, and Evaporate the solution until it emits white smoke, remove it and cool it to room temperature, rinse the surface and the salt on the wall of the cup with water, add water to the beaker to 300mL, 10mL NaCl solution (20g / L), a small amount of filter paper pulp, stir well, place in Boil on a hot plate for 5 minutes, remove and cool slightly, then filter with medium-speed filter paper. Transfer all the precipitate to filter paper, wash the precipitate with hot water until there is no blue color, and keep the filtrate (1). Put the filter paper on the glass-wiping rod and the cup wall together with the filter paper slurry loaded with the precipitate (1) into a clay crucible, put it into an assay fur...
Embodiment 2
[0118] The weight of the sample taken in this embodiment is 4.9969g, and the determination of gold, silver, copper and tellurium elements is carried out according to the measurement steps of Example 1. The measurement results and calculation process are as follows, obtained according to the following process: It contained 23.2g / t gold, 3918g / t silver, 42.33% copper and 26.62% tellurium.
[0119] Au ( g / t ) = m 4 - m 2 m 0 ;
[0120] Ag ( g / t ) = m 3 - m 4 - ...
Embodiment 3
[0142] The weight of the sample that the present embodiment takes is 5.0012g, carries out the mensuration of gold, silver, copper and tellurium element according to the mensuration step of embodiment 1, and measurement result and calculation process are as follows, obtain according to the following process: gold content is 30.5g / t at 4438g / t silver, 44.69% copper and 29.27% tellurium.
[0143] Au ( g / t ) = m 4 - m 2 m 0 , Ag ( g / t ) = m 3 - m 4 - ...
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