Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Treating with a liquid or treating in a liquid phase,...
Reexamination Certificate
2006-02-07
2006-02-07
Nguyen, Ngoc-Yen (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Treating with a liquid or treating in a liquid phase,...
C502S301000, C568S863000
Reexamination Certificate
active
06995107
ABSTRACT:
To obtain a Raney catalyst for fixed bed permitting a continuous use with a high initial activity and to produce a high purity sugar-alcohol at a low cost using the same.For this object, sugar-alcohol is produced by: using the powder type Raney catalyst made by using for the hydrogenation under the hydrogen pressure a lump form Raney catalyst made by (i) the first step for melting nickel and aluminum, (ii) the second step for obtaining quenched lump alloy by quenching droplets of said melted mixture and (iii) the third step for classifying and activating said quenched lump alloy as it is or once it is broken, collecting said lump form Raney catalyst, crushing into powder and reactivating, and hydrogenating sugars under the hydrogen pressure.
REFERENCES:
patent: 1628190 (1927-10-01), Raney
patent: 2948687 (1960-08-01), Hadley
patent: 3165478 (1965-01-01), Ulrich et al.
patent: 3673116 (1972-06-01), Richter
patent: 3719732 (1973-03-01), Diffenbach et al.
patent: 4166805 (1979-09-01), Jowett
patent: 4258222 (1981-03-01), Mohring et al.
patent: 4263449 (1981-04-01), Saito et al.
patent: 4322569 (1982-03-01), Chao et al.
patent: 4520211 (1985-05-01), Lepper
patent: 4554397 (1985-11-01), Stern
patent: 4628130 (1986-12-01), Bournonville et al.
patent: 4826799 (1989-05-01), Cheng et al.
patent: 5093528 (1992-03-01), Dobson et al.
patent: 5362519 (1994-11-01), Argyropoulos et al.
patent: 5536694 (1996-07-01), Schuetz et al.
patent: 5641872 (1997-06-01), Darow
patent: 5873943 (1999-02-01), Magara et al.
Smarsh, Powder Coating: Why-How-When, Journal of Paint Technology, vol. 44, No. 565, p. 30-37, Feb., 1972.
Magara Mitsuo
Nagasawa Minoru
Ohshima Takao
Okamoto Naoki
Sakamura Hideki
Nguyen Ngoc-Yen
Nikko Rica Corporation
Towa Chemical Industry Co. Ltd.
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