High pressure Soxhlet extractor

Details High pressure Soxhlet extractor High pressure Soxhlet extractor

1980-03-27

1981-05-05

Scovronek, Joseph

Chemical apparatus and process disinfecting, deodorizing, preser

Physical type apparatus

Means separating or dissolving a material constituent

202169, 422101, B01D 1102

Patent

active

042658608

ABSTRACT:
The numerous advantages of a Soxhlet apparatus are combined with the nice pressure and temperature controls afforded by a pressure vessel to enlarge the scope and efficacy of both pieces of equipment. A judicious selection of solvent, such as CO.sub.2, provides a solvent-free extract which is ideal for gas chromatographic studies and can advantageously be used in an ever-widening spectrum of analyses including research, food and flavor, pheremone analysis and essence extraction. The extraction of oil from coal and oil shale, in comminuted form, is also facilitated by the use of the apparatus operated under reflux conditions, controlled pressure-temperature relations and appropriate choice of extractant.

REFERENCES:
patent: 2006513 (1935-07-01), Rascher et al.
patent: 2095056 (1937-10-01), Clough
patent: 2478619 (1949-08-01), Arnold
patent: 3107205 (1963-10-01), Moran et al.
patent: 4006062 (1977-02-01), Bhuchar et al.

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