Exhaust gas treating agent, process for producing the same, and method of treating exhaust gas

摘要

The invention provides an exhaust gas treatment agent characterized in that it comprises calcium silicate hydrate particles having a mean particle diameter of 0.2 to 4 mum and a specific surface area of not less than 60 m<2>/g and calcium hydroxide particles having a mean particle diameter of not more than 4 mum and the content of calcium hydroxide particles in both particle components is within the range of 20 to 60% by weight; a method of producing the exhaust gas treatment agent; and a process for the treatment of exhaust gases and soot and dust which uses the exhaust gas treatment agent.