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Title: Purifying solid substance by zone heating and smelting and molecule spreading method and its device
Authors: Mi, Yongli
Li, Ning
Keywords: Zone heating and smelting
Moecular diffusion process
Issue Date: 29-Sep-2004
Citation: CN patent 1532139, People's Republic of China, State Intellectual Property Office, PRC, 2004.
Abstract: The present invention relates to zone heating and smelting and molecular diffusion process to purify solid matter, such as yellow phosphorus via eliminating As. By means of zone heating and smelting and molecular diffusion, As content in yellow phosphorus is lowered while lowering the content of other impurities. In addition, no any pollution will be produced in the operation.
Appears in Collections:BIOL Patents
CBME Patents

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