Method for purifying diamond

Details Method for purifying diamond Method for purifying diamond

1985-04-24

1986-03-25

Meros, Edward J.

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

423461, C01B 3106

Patent

active

045782601

ABSTRACT:
Diamond can be easily purified from a powdery mixture of diamond and graphite by heating the mixture together with ammonium nitrate and at least one metal oxide of lead monoxide, trilead tetroxide, magnesium oxide and zinc oxide, to oxidize the graphite powder, and removing the oxidized graphite.

REFERENCES:
patent: 3030188 (1962-04-01), Eversole
patent: 3348918 (1967-10-01), Kruse
patent: 3851027 (1974-11-01), Balchan et al.
patent: 3969489 (1976-07-01), Wu
Nagao, Chemical Abstracts, vol. 84, 1976, 84:152832v.
Young et al, Chemical Abstracts, vol. 45, 1951, 8221g.
Bragdon, Science, vol. 120, No. 3107, 1954, p. 114.

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