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EXPERIMENTS ON PREPARATION OF 0~# NICKEL BY VACUUM DISTILLATION

Xuepeng Li

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Abstract

1# nickel with nickel content 99.96% is treated by vacuum distillation.Saturated vapor pressures of the impurities is calculated under 773K~2023K.And β of some impurities is calculated under certain temperature.Influence of temperature,vacuum degree and time are studied.The 1# nickel can be distilled to 0# nickel with national standard under the condition: temperature 1873 K,time 2.5h,and vacuum degree between 3Pa and 9Pa.

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1# nickel with nickel content 99.96% is treated by vacuum distillation.Saturated vapor pressures of the impurities is calculated under 773K~2023K.And β of some impurities is calculated under certain temperature.Influence of temperature,vacuum degree and time are studied.The 1# nickel can be distilled to 0# nickel with national standard under the condition: temperature 1873 K,time 2.5h,and vacuum degree between 3Pa and 9Pa.

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Available abstract

1# nickel with nickel content 99.96% is treated by vacuum distillation.Saturated vapor pressures of the impurities is calculated under 773K~2023K.And β of some impurities is calculated under certain temperature.Influence of temperature,vacuum degree and time are studied.The 1# nickel can be distilled to 0# nickel with national standard under the condition: temperature 1873 K,time 2.5h,and vacuum degree between 3Pa and 9Pa.

Key concepts: Nickel, Distillation, Vacuum distillation, Impurity, Degree (music), Chemistry, Analytical Chemistry (journal), Metallurgy

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