Selection of chlorine dioxide production plant

As ECF bleaching uses chlorine dioxide as a principal chemical, it is critical to select the type of plant in order to reduce cost for producing chlorine dioxide. Outside Japan, as ECF bleaching is growing rapidly, the dominating process is that of no discharge liquor and no chlorine. It has been expected that the process of no discharge liquor and no chlorine would go mainstream also in Japan similarly with the trend in overseas, but the situations are not always the same. In the domestic market, there would be cases that would not require large quantity of chlorine dioxide because of improvement in cooking technology, wide use of oxygen bleaching and application of ozone. While the process of no discharge liquor and no chlorine is suited to manufacture chlorine dioxide in quantity, R 2 P process might be one of the better options in view of the circumstances of Japan.