Process for extracting secondary salt from desulfurization waste liquid

The invention discloses a process for extracting secondary salt from desulfurization waste liquid. An input quantity of the desulfurization waste liquid in a desulfurization waste liquid conveying pipe connected with a concentrated liquid conveying pipe is controlled at 0-5 t/h; a steam pipeline wit...

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Bibliographic Details
Main Authors LUO CHENGQUAN, ZHANG HUACHENG, SHI YUERONG, LEI ZONGCHANG, WU TAO, RAO JING
Format Patent
LanguageChinese
English
Published 29.06.2018
Subjects
AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:The invention discloses a process for extracting secondary salt from desulfurization waste liquid. An input quantity of the desulfurization waste liquid in a desulfurization waste liquid conveying pipe connected with a concentrated liquid conveying pipe is controlled at 0-5 t/h; a steam pipeline with a heat exchange area of 120-140 m is mounted in an evaporator; a steam input pipe on the steampipeline has a steam temperature of 120-160 DEG C and a steam pressure of 0.2-0.5 MPa; a gas-liquid mixture conveying pipe is connected with a top end of the evaporator and an upper side wall of an evaporation chamber; the evaporation chamber has a volume of 12-14 m , an internal pressure of 0.05 MPa and a top temperature of 90-100 DEG C; the concentrated liquid conveying pipe with a switch is connected with lower parts of the evaporator and the evaporation chamber, wherein bottom ends of the evaporator and the evaporation chamber has a position difference W; an ammonia-containing steam conveying pipe is connected betwee
Bibliography:Application Number: CN201810210473