Mixed catalyst for dissolving trace colloidal iron in water vapor of power station

Abstract

The invention relates to the technical field of chemical engineering, in particular to a mixed catalyst for dissolving trace colloidal iron in water vapor of a power station, the mixed catalyst is formed by mixing ammonium persulfate, ammonia chloride, nitrate and an additive, and the trace colloidal iron in water can be efficiently dissolved by adding quantitative mixed catalyst into a water sample containing the colloidal iron. The problems of environmental pollution, complex steps, long time consumption and the like caused by using acid liquor or an oxidizing agent and heating for oxidation dissolution are avoided, meanwhile, the mixed catalyst does not contain iron elements, detection of the iron content in the power station water vapor trace colloidal iron cannot be affected, use is easy, the cost is low, and popularization is easy. The mixed catalyst is utilized to improve the dissolution speed of the colloidal iron, so that the dissolution efficiency and speed of the colloidal iron are improved.

Description

technical field [0001] The invention relates to the technical field of chemical industry, in particular to a mixed catalyst for dissolving trace amounts of colloidal iron in water vapor of a power station. Background technique [0002] At present, when the whole iron in the water vapor of the power station is detected, because the iron in the water vapor of the power station is mostly colloidal iron at this time, it is necessary to convert the colloidal iron into dissolved iron before taking the water sample for testing. Usually, it is necessary to add acid or oxidant and cook to convert colloidal iron into dissolved iron, and then measure to obtain the accurate content of total iron. However, due to the need to add acid or oxidant, and to cook, the environment is polluted and the steps are complicated. During the measurement process, the workload of laboratory testing is large and time-consuming. Especially when the unit is stopped and started, the total iron in the effluen...

AI Technical Summary

Problems solved by technology

However, due to the need to add acid or oxidant and cooking during the detection, the environment is polluted and the steps are complicated. During the measurement process, the laboratory detection workload is heavy and time-consuming, especially when the unit is shut down and started, the total iron in the water cannot be monitored in time. It is not conducive to the energy saving and consumption reduction of the power station