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Extraction equipment in dimethyl sulfoxide extraction separation of aromatic process

by:Deyuan      2020-09-08
Extraction equipment in dimethyl sulfoxide extraction separation of aromatic technology is our country petroleum institute of research and development, the first set of industrial extraction equipment is put into production in 1968, annual processing capacity of 13 for production. 50000 t aromatics.
from the properties of dimethyl sulfoxide and phase equilibrium can be seen: extraction equipment in dimethyl sulfoxide extraction separation of aromatic process and glycol extraction process exists obvious difference: dimethyl sulfoxide solvent at room temperature under low viscosity, extraction operation can be at room temperature, glycol kind of solvent viscosity under normal temperature, need for extraction operations under high temperature; Dimethyl sulfoxide low atmospheric pressure boiling point solvents, and extract the boiling point difference is small, and the thermal stability is poor, need to adopt the extraction was isolated from solvent extraction, glycol type high atmospheric pressure boiling point solvents, easy separation distillation extraction, the process is relatively simple; Extraction equipment in dimethyl sulfoxide extraction separation of aromatic technology is only a single liquid liquid extraction process, glycol type of solvent extraction is a combined process of liquid-liquid extraction and extraction distillation. http://www
zhengzhou extraction technology co. , LTD. cncuiqu。 com
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