反応 #2267050

反応方程式

sulfur dioxide

sodium sulfite

→

sodium metabisulfite

溶媒

water

反応条件

後処理

1. 1
   workup.ADDITIONIn particular, the method comprises introducing a gas stream
2. 2
   その他The method also comprises absorbing at least a portion of the sulfur dioxide into the liquid stream

実験手順

In another embodiment, the invention relates to a method for producing sodium metabisulfite. In particular, the method comprises introducing a gas stream, having sulfur dioxide, and a liquid stream, having sodium sulfite and water, into a column. The method also comprises absorbing at least a portion of the sulfur dioxide into the liquid stream and reacting at least a portion of the absorbed sulfur dioxide with sodium sulfite to produce a sodium metabisulfite stream. The method further involves evaporating at least a portion of the water from the liquid stream into the gas stream. The method also comprises precipitating sodium metabisulfite from the sodium metabisulfite stream in a crystallizer and withdrawing a slurry of sodium metabisulfite from the bottom of the crystallizer.

出典