Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1978-03-23
1979-07-10
Wyse, Thomas G.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 61, 568760, 423356, B01D 1104, C01C 102
Patent
active
041607252
ABSTRACT:
Waste water from coke ovens is purified by passing the waste water and a stripping fluid through a stripping column in counterflow. Non-volatile ammonium compounds are removed in one region of the column, phenolic compounds are removed in another region, and volatile ammonium compounds are removed in yet another region. The region in which phenolic compounds are removed is disposed at such a location that no ammoniacal vapor can traverse it. An acid and a strong base are fed laterally into the column at two different levels.
REFERENCES:
patent: 1378593 (1921-05-01), MacMahon
patent: 1838587 (1931-12-01), Sperr, Jr.
patent: 1873900 (1932-08-01), Miller
patent: 2781244 (1957-02-01), Hecklinger
patent: 3855076 (1974-12-01), Marecaux
patent: 4061718 (1977-12-01), Verlaften et al.
Hans Andre
Josis Christian
Centre de Recherches Metallurgiques--Centrum voor Research in de
Sadowski David R.
Siderurgiemaritime-Maritime Staalnijverheid
Wyse Thomas G.
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