Patent ID: 8771623
Filing Date: 2014-07-08
Classification: B01D,B01L,D01F

Abstract:
1. A residual impurity management method comprising: directing a gaseous stream through an unlined portion of a pipe under at least one of a vacuum and a partial vacuum, wherein the gaseous stream comprises gaseous sodium, wherein the gaseous stream is at a temperature between 1400° C. and 2200° C.; allowing the gaseous stream to cool to between 900° C. and below 1400° C.; injecting a neutralizing agent into the gaseous stream at an injection point, wherein the injection point is located at a point where a portion of the sodium is not in gaseous form and wherein the gaseous stream is at a temperature of between 900° C. and below 1400° C.; conducting the gaseous stream through a heated portion of the pipe; and conducting the gaseous stream through a cooled portion of the pipe.