Non-flooding distilling column

Details Non-flooding distilling column Non-flooding distilling column

1982-02-01

1985-04-16

Bascomb, Jr., Wilbur L.

Distillation: apparatus

Apparatus

Systems

203DIG2, 261 62, 261114VT, B01D 5320

Patent

active

045114358

ABSTRACT:
A Snyder-type distilling column having improved floating ball vapor valves. When used in a standard Snyder-type column, the valve comprises a spherical upper portion and a downwardly extending guide stem. When used in a microcolumn, the upper portion is mushroom shaped with a downwardly extending guide stem. The lower surface of either upper portion forms the valve face and includes multiple indentations therein. When a ball valve is closed, the indentations form by-pass passages to permit draining of condensed liquids therethrough thereby preventing flooding of the column. The indentations also permit the passage of vapors through the ball valve indentations thereby preventing sticking which can occur with a tight fitting ball valve and cause rotation of the ball valve during use which also assists in preventing sticking.

REFERENCES:
patent: 3293149 (1966-10-01), Lengemann et al.
patent: 3325155 (1967-06-01), Bahout
patent: 3493218 (1970-02-01), Castellucci
patent: 3607661 (1971-09-01), Cerny et al.
patent: 3759494 (1973-09-01), Axelrod et al.
patent: 4098579 (1978-07-01), Starzycki et al.
patent: 4136976 (1979-01-01), Leffelman
patent: 4201626 (1980-05-01), Asdigian
Carney, T. P.: Laboratory Fractional Distillation N.Y. 1949, pp. 58-63.

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