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Purifying solid substance by zone heating and smelting and molecule spreading method and its device

Authors Mi, Yongli
Li, Ning
Issue Date 2004-09-29
Source CN patent, 1532139, People's Republic of China, State Intellectual Property Office, PRC, 2004.
Summary 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.
Language English
Format Patent
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