Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-12-03
1978-09-12
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
55 85, 252417, C02B 114, C02C 502
Patent
active
041136152
ABSTRACT:
The substantially complete removal from waste water of phenols and other organic compounds that dissociate in solution to produce organic anions and hydrogen ions is obtained by contacting the waste water with char derived from a carbonaceous material whose ash contains a total of at least 15 weight percent calcium, magnesium, potassium and sodium expressed as oxides on a moisture-free basis while maintaining the pH of the resultant slurry at a value such that the ratio of the highest dissociation constant of the organic compounds present to the hydrogen ion concentration of the slurry is less than about 0.1. By adjusting the pH to such a level, the phenols and other organic compounds are maintained in their nonionized, more adsorbable form which insures the substantially complete adsorption of these substances by the char.
REFERENCES:
patent: 2809938 (1957-10-01), Goren et al.
patent: 3424676 (1969-01-01), Johnson et al.
patent: 3620700 (1971-11-01), Schlinger et al.
patent: 3892661 (1975-07-01), Siviour et al.
Short et al., "Controlling Phenols in Refinery Waste Waters," The Oil & Gas Journal 72, No. 47, pp. 119-124, Nov. 25, 1974.
Frum, R. W., "Sewage Treatment with Coal and Coal Related Wastes," Technical Report #94, Coal Research Bureau, West Virginia University.
Kipling, "The Adsorption of Acetic Acid and n-Butylamine," Chemical Society Journal, No. 43, pp. 1483-1487 (1948).
Voreck et al., "Extraction of Mercaptans by Means of Adsorption," Petroleum Refiner, vol. 30, No. 3, pp. 126-129, Mar. 1951.
Cintins Ivars
Exxon Research & Engineering Co.
Finkle Jale S.
Hart Charles N.
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