专利汇可以提供Method of concentrating and purifying alcohol专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain a highly concentrated alcohol having low contents of impurities with reduced energy, adding a solvent for alcohol to a mixture of water, an alcohol and impurities and blending them in a supercritical state of the solvent.
CONSTITUTION: For example, a mixture of 80W90% water, 10W20% alcohol and about 1% high-boiling impurities such as 4W5C fusel oil, such as fermented alcohol is used as a raw material, blended with a solvent (CO
2 or 2W4C hydrocarbon) to dissolve only the alcohol and fed to the blender 4. They are blended well in the supercritical state or pseudo critical state of the solvent and fed to the separating tank 5. Then, they are separated into a light solution containing most of the solvent, most of the alcohol and part of the impurities and a heavy solution containing water, most of the impurities and part of the alcohol. The light solution is introduced through the pipe 7 and the reducing valve 8 to the impurity separating tank 9, where the pressure of the tank is reduced to give the highly concentrated alcohol free from high-boiling impurities.
COPYRIGHT: (C)1987,JPO&Japio,下面是Method of concentrating and purifying alcohol专利的具体信息内容。
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