Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1985-03-07
1986-06-10
Konopka, P. E.
Liquid purification or separation
Processes
Ion exchange or selective sorption
55 68, 55 73, 55 74, 55 75, 208310R, 210694, 502416, B01D 5302, B01D 1504, C10G 2500, C02F 142
Patent
active
045941637
ABSTRACT:
The instant invention is directed to a process for the continuous manufacturing of carbon molecular sieves having average effective pore diameters of from 2 to 15 Angstroms which comprises continuously feeding a charred naturally occurring substrate to a means for heating said substrate and heating said substrate under non-activation conditions, without the use of an externally added pore blocking substance, at a temperature range of about 900.degree. F. (482.degree. C.) to 2000.degree. F. (1093.degree. C.) for a time period of about 5 to 90 minutes.
The instant invention is also directed to a carbon molecular sieve, useful for separating gas or liquid mixtures containing components of at least two different molecular diameters, molecular weights or molecular shapes which has the following physical characteristics:
REFERENCES:
patent: 3884830 (1975-05-01), Grant
patent: 4046709 (1977-09-01), Yuki
patent: 4261709 (1981-04-01), Itoga et al.
patent: 4382001 (1983-05-01), Kulprathipanja et al.
patent: 4420415 (1983-12-01), Yuki et al.
patent: 4490160 (1984-12-01), Yuki
Calgon Carbon Corporation
Konopka P. E.
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