METHOD OF PREPARATION FOR CHEMICALS AND ITS APPARATUS

摘要

PURPOSE: To provide an apparatus for preparation for chemicals capable of reducing costs by using general industrial gases. CONSTITUTION: While the chemicals are prepared by dissolving the gas used in a general industry into pure water or a mixed solution stored in a chemicals preparing tank 21, at least either an exhaust gas controller 23 controlling the amount of exhaust gas or an exhaust water controller 24 draining the specified amount of chemicals from a gas dissolving part is used at the same time in the course of the dissolving process. Impurity of gas is contained in the exhaust gas and in the exhaust water. As a result, dissolving the general industrial gas and purifying the chemicals are performed at the same time.