Catalyst – solid sorbent – or support therefor: product or process – Solid sorbent – Free carbon containing
Patent
1983-12-13
1985-07-02
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Solid sorbent
Free carbon containing
502416, 502429, 502437, 55 75, 55 68, 210660, C01B 3100
Patent
active
045268878
ABSTRACT:
The instant invention is directed to carbon molecular sieves which are capable of separating gas or liquid mixtures containing components of at least two different molecular diameters, molecular weights or molecular shapes, said molecular sieve having an average effective pore diameter of from about 3 to about 20 Angstroms and having specified oxygen diffusivities and selectivity ratios.
The instant invention is also directed to a process for preparing carbon molecular sieves having average effective pore diameters of from about 3 to about 20 Angstroms which comprises continuously feeding an agglomerated naturally occurring substrate to a continuous transport type heating means and calcining said agglomerated substrate in a substantially oxygen-free environment under a cocurrent purge of an inert gas at a temperature range of about 250.degree. to 1100.degree. C. for at least 1 minute.
The instant invention is also directed to the use of the carbon molecular sieves in separating gas or liquid mixtures containing components of at least two different molecular diameters, molecular weights or molecular shapes.
REFERENCES:
patent: 1497544 (1924-06-01), Chaney
patent: 2448337 (1948-08-01), Wickenden
patent: 2556859 (1951-06-01), Vesterdal
patent: 2761822 (1956-09-01), Addison
patent: 3222412 (1960-06-01), Mason et al.
patent: 3252919 (1966-05-01), Bigelow et al.
patent: 3639266 (1972-02-01), Battista
patent: 3793224 (1974-02-01), Cooper
patent: 3801513 (1974-04-01), Munzner et al.
patent: 3884830 (1975-05-01), Grant
patent: 3960522 (1976-06-01), Munzner et al.
patent: 3960769 (1976-06-01), Munzner et al.
patent: 3962129 (1976-06-01), Munzner et al.
patent: 3979330 (1976-09-01), Munzner et al.
patent: 4011065 (1977-03-01), Munzner et al.
patent: 4046709 (1977-09-01), Yuki
patent: 4050900 (1977-09-01), Hobbs et al.
patent: 4055628 (1977-10-01), McCarroll et al.
patent: 4123332 (1978-10-01), Rotter
patent: 4124529 (1978-11-01), Juntgen et al.
patent: 4139416 (1979-02-01), Palumbo et al.
patent: 4261709 (1981-04-01), Itoga et al.
patent: 4528281 (1985-07-01), Sutt
McGinnis, "Infrared Furnaces for Reactivation", Activated Carbon Adsorption for Wastewater Treatment, edited by J. R. Perrich, Shirco, Inc., Dallas, Tex., (1981), pp. 155-176.
Moore et al., "The Preparation of Carbon Molecular Sieves by Pore Blocking", Carbon 15, (1977), pp. 177-180.
Walker et al., "The Preparation of 4A and 5A Carbon Molecular Sieves", Proc. 2nd Conf. Inf. Carbon and Graphite, London, (1965).
Dedrick et al., "Kinetics of Adsorption by Activated Carbon from Dilute Aqueous Solution", AICHE Chemical Engineering Progress Symposium Series 63, (1967), pp. 68-78.
Lamond et al., "6A Molecular Sieve Properties of Saran-Type Carbons", Carbon 3, (1965), pp. 59-63.
Nandi et al., "Carbon Molecular Sieves for the Concentration of Oxygen from Air", Abstr. Biennial Conference on Carbon, Gatlingberg, Tennessee, (1973).
Kipling et al., "Adsorptive Properties of Polymer Carbons", Trans. Faraday Soc. 56, (1960), pp. 557-561.
Calgon Carbon Corporation
Garvin Patrick P.
Olson R. Brent
Sudol Michael C.
LandOfFree
Carbon molecular sieves and a process for their preparation and does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Carbon molecular sieves and a process for their preparation and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon molecular sieves and a process for their preparation and will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-381704