Process for producing micro-beads and product containing the sam

Details Process for producing micro-beads and product containing the sam Process for producing micro-beads and product containing the sam

1973-04-05

1976-05-11

Gantz, Delbert E.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

72 42, 106 3828, 136122, 176 88, 252 12, 252 29, 252502, 423448, 423450, B29C 2500, C01B 3100, C10M 500, C10M 110

Patent

active

039564363

ABSTRACT:
Micro-beads having a carbonaceous structure are produced by a process comsing heating pitch at about 350-500.degree.C to form optically anisotropic spherules, extracting the resulting spherules with an organic solvent to remove substantially all remaining pitch therefrom, and then carbonizing the pitch-free spherules in a non-oxidizing atmosphere. The optically anisotropic micro-beads substantially free of pitch can be shaped to a desired form and then carbonized to produce a shaped carbonaceous structure. If the carbonizing temperature is above about 1500.degree.C, a graphite crystalline structure results.

REFERENCES:
patent: 2131021 (1938-09-01), Bemis
patent: 2486826 (1949-11-01), Decepoli
patent: 2487640 (1949-11-01), Decepoli
patent: 2964460 (1960-12-01), Neuworth
patent: 3549531 (1970-12-01), Santt
patent: 3787541 (1974-01-01), Grindstaff et al.
patent: 3812240 (1974-05-01), Whittaker et al.

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