eductor by line 132 to a gas disengagement stage 134 in the form of a cyclone separator 136 separated gas from the cyclone gas disengagement is forwarded by line 138 to the absorption tower s 3 of the chlorine dioxide generator see fig1 separated liquid product is passed by line 140 to a collector vessel 142 from which the product aqueous sodium chlorite solution passes by line 116 to storage this example illustrates the preparation of sodium chlorite with low carbonate and organic content according to the process of the invention a commercial subatmospheric methanol based clo 2 generator r 8 as shown in fig1 was run in the vicinity of its nominal capacity 20 mtpd and within its typical liquor composition and pressure temperature operating ranges 7 5 to 8 5 n acidity 1 8 to 2 2 m sodium chlorate concentration 119 to 121 mmhg absolute pressure and 69 to 71 u00b0 c methanol consumption was 0 174 g g clo 2 icc exit temperature was 10 u00b0 c and clo 2 product solution strength was 12 5 g l following several hours of steady operation an off gas sample started to be continuously withdrawn from a port at the top of the icc exit line see point a in fig1 the gases were directed into a 150 ml gas washing bottle pretreatment stage followed by a chlorite reaction bottle filled with 100 ml water 37 ml 50 naoh 17 ml 50 h 2 o 2 a small laboratory water eductor was used to pull the gases through the experimental setup during three separate tests conducted the naclo 2 concentration in the reaction bottle was allowed to build up over lengths of time ranging from 52 to.