반응 #56598

ord-f7a8ee6ec3c540da9c74e8fe333befd3

반응 방정식

[Mg]
magnesium
[Mg+2].[OH-].[OH-]
magnesium hydroxide
O=S=O
sulfur dioxide
[Mg+2].[OH-].[OH-]
magnesium hydroxide slurry
O=S=O
sulfur dioxide
→
O=S([O-])[O-].[Mg+2]
magnesium sulfite
O=S([O-])O.O=S([O-])O.[Mg+2]
magnesium bisulfite

반응물

[Mg]
magnesium
[Mg+2].[OH-].[OH-]
magnesium hydroxide
O=S=O
sulfur dioxide
—
lime
[Mg+2].[OH-].[OH-]
magnesium hydroxide slurry
O=S=O
sulfur dioxide

시약

없음

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    workup.ADDITIONmay be treated
  2. 2
    workup.ADDITIONcontaining

실험 절차

In lieu of a limestone or lime-based scrubbing system, flue gas containing sulfur dioxide may be treated by passing it through a scrubbing unit that utilizes a magnesium-containing scrubbing agent, e.g., a magnesium hydroxide slurry. The magnesium hydroxide reacts with sulfur dioxide to produce magnesium sulfite and magnesium bisulfite. The magnesium hydroxide slurry also reacts with hydrochloric acid in the flue gas, producing magnesium chloride, although there is very little hydrochloric acid in the flue gas compared to sulfur dioxide. The following chemical reactions occur in the scrubbing unit: SO2+Mg(OH)2→MgSO3+H2O  (1) H2O+SO2+MgSO3→Mg(HSO3)2  (2) Mg(HSO3)2+Mg(OH)2→2MgSO3  (3) 2HCl+Mg(OH)2→MgCl2+2H2O  (4)

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US07419643B1uspto-grants-2008_09