Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1989-08-29
1990-12-04
Langel, Wayne A.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
C01G 2102
Patent
active
049752685
ABSTRACT:
The method according to the invention for producing industrial litharge of more than 99.98, preferably more than 99.99, % by weight oxide content, wherein liquid lead in heated form is introduced into a reactor in an amount which is constant and uniform in time average, the reaction temperature is set to a temperature in the range from more than 500.degree. C. to 680.degree. C. and the crude oxide having an oxidation degree of about 99.7% thus obtained is further oxidized, is characterized in that in the first stage in the production of the crude oxide with an oxidation degree of about 99.7% the product discharged with the reaction air is filtered out of the latter and returned to the reactor and, when enough oxide has collected in the reactor, the lead supply and the filter oxide return are interrupted and only air is then blown in, and the charge oxidized to a residual content of metallic lead of at the most 0.01% is not completely discharged but only to an extent of about 50%.
REFERENCES:
patent: 1204537 (1916-11-01), Barthelmess
patent: 1913391 (1933-06-01), Hutchinson
patent: 2380096 (1945-07-01), Doan et al.
patent: 2383220 (1945-08-01), Seabury et al.
patent: 3322496 (1967-05-01), Vahrenkamp et al.
patent: 4108634 (1978-08-01), Rahn et al.
patent: 4521399 (1985-06-01), McKinney
patent: 4536385 (1985-08-01), Heubach et al.
Heubach & Lindgens GmbH & Co. KG
Langel Wayne A.
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