Process for producing single crystals of optical calcite

Details Process for producing single crystals of optical calcite Process for producing single crystals of optical calcite

1990-10-10

1991-12-03

Kunemund, Robert

Adhesive bonding and miscellaneous chemical manufacture

Delaminating processes adapted for specified product

Delaminating in preparation for post processing recycling step

156621, 156623Q, C30B 710

Patent

active

050697447

ABSTRACT:
A process is provided for producing single crystals of optical calcite by a hydrothermal method and comprises heating crystalline calcium carbonate, then crystalline calcium carbonate is recrystallized onto one seed plate arranged vertically in an insertion container and having its side surfaces screened, a temperature difference existing between the zones of location of the calcium carbonate and of the seed plate, ranging within 2 to 4 K.

REFERENCES:
patent: 3253893 (1966-05-01), Sawyer
patent: 3291575 (1966-12-01), Sawyer
patent: 4762588 (1988-08-01), Hirano et al.
Kinloch et al., J. Crystal Growth 24/25 (1974) pp. 610-613.

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