Automated apparatus for solvent separation of a coal liquefactio

Details Automated apparatus for solvent separation of a coal liquefactio Automated apparatus for solvent separation of a coal liquefactio

1983-01-17

1985-01-08

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422 68, 436 50, 436139, 436178, 196 1452, 208 8LE, B01D 1100, C01G 100

Patent

active

044926740

ABSTRACT:
An automated apparatus for the solvent separation of a coal liquefaction product stream that operates continuously and unattended and eliminates potential errors resulting from subjectivity and the aging of the sample during analysis. In use of the apparatus, metered amounts of one or more solvents are passed sequentially through a filter containing the sample under the direction of a microprocessor control means. The mixture in the filter is agitated by means of ultrasonic cavitation for a timed period and the filtrate is collected. The filtrate of each solvent extraction is collected individually and the residue on the filter element is collected to complete the extraction process.

REFERENCES:
patent: 4219530 (1980-08-01), Kopp et al.
patent: 4252769 (1981-02-01), Hood et al.
patent: 4311586 (1982-01-01), Baldwin et al.
Solvent Extraction of Coal Derived Products, Schweighardt et al., Analytical Chemistry, vol. 50, No. 9, Aug. 1978.

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