| 摘要 |
Chlorine dioxide is produced by (a) drawing via a vacuum, hydrochloric acid and sodium chlorite solution from separate storage containers (3,2) through restriction means which allow for the regulation of flow rates, to a point where the hydrochloric acid and sodium chlorite are commingled before being drawn into a generator column (9); (b) drawing the hydrochloric acid and sodium chlorite mixture into the generator column (9) where they are allowed to mix and substantially react; (c) drawing from the top of the generator column, chlorine dioxide gas, sodium chloride, any unreacted hydrochloric acid and sodium chlorite and any other reaction by-products by means of a vacuum created by motive water (16) passing through an eductor (1); and (d) intermittently interrupting the drawing of hydrochloric acid and sodium chlorite to the generator column (9) and subsequently allowing flush water to be drawn from a point to the generator column (12) to remove the reactants and any salts that may have formed. Apparatus for the production of chlorine dioxide comprises (a) at least two storage containers (2,3) connected via lines equipped with flow restriction means (4,5) to (b) a commingling juncture (8) with an outlet (12) connected to the bottom of (c) a generator column (9) with an outlet (17) on top connected to (d) an eductor (1) for drawing a vacuum and (e) at least one flush water means (12) situated between at least one of the storage containers (2,3) and the generator column (9). |
