Method for processing production waste water of propylene oxide

A method for processing industrial wastewater of epoxy propane relates to a processing method of wastewater produced by epoxy propane, in particular to the treatment and the re-utilization of calcium chloride in wastewater. The invention provides a method for processing the industrial wastewater of...

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Bibliographic Details
Main Authors LIU YUCHENG, ZHANG SONGLAN
Format Patent
LanguageChinese
English
Published 08.06.2011
Subjects
AMMONIA
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:A method for processing industrial wastewater of epoxy propane relates to a processing method of wastewater produced by epoxy propane, in particular to the treatment and the re-utilization of calcium chloride in wastewater. The invention provides a method for processing the industrial wastewater of the epoxy propane, which is used for processing and better utilizing the calcium oxide in the industrial waste water of the epoxy propane. The method comprises the following steps: firstly, generating calcium bicarbonate and calcium chloride by utilizing the reaction of ammonium bicarbonate and ammonium chloride; secondly, generating calcium carbonate precipitate, water and carbon dioxide through thermally decomposing the calcium bicarbonate; and thirdly, generating the calcium carbonate precipitate and the water by utilizing the reaction of calcium hydroxide in the wastewater and CO2 generated by thermally decomposing the calcium bicarbonate.
Bibliography:Application Number: CN2007111998