Sulfur Dioxide → Magnesium bisulfite
反応式
[S:1](=[O:3])=[O:2].[S:4]([O-:7])([O-:6])=[O:5].[Mg+2:8]>>[S:4](=[O:5])([OH:7])[O-:6].[Mg+2:8].[S:1](=[O:5])([OH:3])[O-:2]参加物
3
実験手順
U.S. Pat. No. 4,388,238 to Abrams, et al. describes how sulfur dioxide is contacted with a magnesium sulfite solution in a scrubbing zone at a pH in the range of about 6 to 7.5 in order to produce magnesium bisulfite. It also teaches providing a minor regeneration stream which is subjected to oxidation to oxidize bisulfite and sulfite to sulfate. This reference also teaches the use of a type S hydrated dolomitic lime for the spray dryer at a weight percent of 3-15% suspended solids and at a stoichiometric ratio of 1.1 to 1.5 and injected at a temperature of 145° to 165° F. The product is calcium sulfite and sulfate, magnesium sulfite and sulfate, unreacted lime, and flyash. However, the presence of calcium sulfite and sulfate and magnesium sulfate is undesirable.
出典と根拠
- ORDレコード
- ord-bc1c74c61b8542d5abdc8fdf6e9837ee
- 出典データセット
- uspto-grants-1995_08
- 特許番号
- US05439658
反応ノート
読み込み中…