Method for Determination of Platinum and Palladium Content in Nickel Ore by Inductively Coupled Plasma Emission Spectrometry
A technology of plasma and emission spectroscopy, applied in the field of determination of precious metal content in ore, can solve the problems of inability to measure platinum and palladium, difficult to accurately measure platinum and palladium, and achieve the effects of avoiding loss of platinum and palladium, ensuring accuracy, and shortening analysis time.
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Embodiment 1
[0074]The internal control sample of nickel ore NJKKY-01 (standard value of platinum content is 5.38g / t, standard value of palladium content is 7.46g / t) was measured.
[0075]The method of using inductively coupled plasma emission spectroscopy to determine the content of platinum and palladium in nickel ore described in this embodiment includes the following steps:
[0076](1) Sample preparation process: The nickel ore sample is repeatedly ground and sieved by a grinder to obtain a sample with a particle size of ≤200 mesh, and then the sample with a particle size of ≤200 mesh is dried in an oven at 105℃ for drying time For 1 hour, the dried sample is placed in a desiccator and cooled to room temperature for later use;
[0077](2) Desulfurization process: Weigh 10g of the dried sample in step (1) and spread it in a square porcelain boat, then put the square porcelain boat into a box-type resistance furnace, heat up to 650℃, and bake at a constant temperature for 1.5h , Take it out, and cool t...
Embodiment 2
[0097]The internal control sample NJKKY-02 of nickel ore (standard value of platinum content is 0.35g / t, standard value of palladium content is 0.15g / t) was measured.
[0098]The method of using inductively coupled plasma emission spectroscopy to determine the content of platinum and palladium in nickel ore described in this embodiment includes the following steps:
[0099](1) Sample preparation process: The nickel ore sample is repeatedly ground and sieved by a grinder to obtain a sample with a particle size of ≤200 mesh, and then the sample with a particle size of ≤200 mesh is dried in an oven at 103°C for drying time 1.5 hours, the dried sample is placed in a desiccator and cooled to room temperature for later use;
[0100](2) Desulfurization process: Weigh 10g of the dried sample in step (1) and spread it in a square porcelain boat, then put the square porcelain boat into a box-type resistance furnace, heat it up to 600°C, and bake at a constant temperature for 2 hours. Take it out and c...
Embodiment 3
[0120]The internal control sample of nickel ore NJKKY-03 (standard value of platinum content is 0.1g / t, standard value of palladium content is 0.1g / t) was measured.
[0121]The method of using inductively coupled plasma emission spectroscopy to determine the content of platinum and palladium in nickel ore described in this embodiment includes the following steps:
[0122](1) Sample preparation process: The nickel ore sample is repeatedly ground and sieved by a grinder to obtain a sample with a particle size of ≤200 mesh, and then the sample with a particle size of ≤200 mesh is dried in an oven at 105℃ for drying time 1.5 hours, the dried sample is placed in a desiccator and cooled to room temperature for later use;
[0123](2) Desulfurization process: Weigh 10g of the dried sample in step (1) and spread it in a square porcelain boat, then put the square porcelain boat into a box-type resistance furnace, heat it up to 600°C, and bake at a constant temperature for 2 hours. Take it out and cool...
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Abstract
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