Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-05-12
1976-07-13
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
260 69F, C02B 114
Patent
active
039692442
ABSTRACT:
Particulate polycondensates of thiourea, thiosemicarbazide, or thiocarbazide with aldehydes and phenolic or amine constituents adsorb heavy metals from aqueous solutions of their compounds, also mercury from its vapors.
REFERENCES:
patent: 2412855 (1946-12-01), Auten et al.
patent: 2692867 (1954-10-01), Passing et al.
patent: 3196107 (1965-07-01), Tomic
patent: 3313779 (1967-04-01), White
patent: 3755161 (1973-08-01), Yokota et al.
Kobayashi Yoshitaka
Sugai Minoru
Sugai, deceased Kinjiro
Sugai, legal successor by Hajime
Sugai, legal successor by Hiroshi
Berman Hans
Cintins Ivars
Hart Charles N.
Hokuetsu Carbon Industry Co., Ltd
Kobayashi Yoshitaka
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