This is a divisional of co-pending application Ser. No. 453,337 filed on Dec. 27, 1982 now U.S. Pat. No. 4,584,181. Other copending United States patent applications relating to the general subject matter of this invention, assigned to the same assignee and incorporated herein by reference are as follows: Process and Apparatus for Obtaining Silicon from Fluosilicic Acid, Ser. No. 337,136 filed Jan. 5, 1982 by Angel Sanjurjo; Process and Apparatus for Casting Multiple Silicon Wafer Articles, Ser. No. P-1559 (Ser. No. 453,718) filed even date herewith by Leonard Nanis; Process and Apparatus for Obtaining Silicon from Fluosilicic Acid, Ser. No. P-1563 (Ser. No. 453,457) filed even data herewith by Kenneth M. Sancier is now U.S. Pat. No. 4,529,676 (patented July 16, 1986); Process and Apparatus for Obtaining Silicon from Fluosilicic Acid, Ser. No. P-1564 (Ser. No. 453,596) filed even date herewith by Kenneth M. Sancier; Process and Apparatus for Obtaining Silicon from Fluosilicic Acid, Ser. No. P-1572 (Ser. No. 453,337) filed even date herewith by Leonard Nanis and Angel Sanjurjo is now U.S. Pat. No. 4,584,181 (patented Apr. 22, 1986); and Process and Apparatus for Obtaining Silicon from Fluosilicic Acid, Ser. No. P-1577 (Ser. No. 453,456) filed even data herewith by Angel Sanjurjo, now U.S. Pat. No. 4,442,082 having an issue date of Apr. 10, 1984.
The United States Government has rights in this invention pursuant to JPL/DOE Contract No. 954471-NAS 7-100 awarded by the U.S. Department of Energy. This invention together with the inventions described in the above related applications evolved (in-part) from research efforts aimed at preparing low cost, high purity silicon for solar cells. The results of that research are contained in the following reports prepared for JPL/DOE: Quarterly Progress Report No. 1, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur and L. Nanis, August 1976; Quarterly Progress Report No. 2 and 3, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur and L. Nanis, March 1976; Quarterly Progress Report No. 4, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur L. Nanis, and A. Sanjurjo, January 1977; Quarterly Progress Report No. 5, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur, L. Nanis, and A. Sanjurjo, February 1977; Quarterly Progress Report No. 6, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur, L. Nanis, and A. Sanjurjo, March 1977; Quarterly Progress Report No. 7, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur, L. Nanis, and A. Sanjurjo, April 1977; Quarterly Progress Report No. 8, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur, L. Nanis, and A. Sanjurjo, February 1978; Quarterly Progress Report No. 9, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur, L. Nanis, A. Sanjurjo, and R. Bartlett, April 1978; Quarterly Progress Report No. 10, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. J. Kapur, L. Nanis, K. M. Sancier, and A. Sanjurjo, July 1978; Quarterly Progress Report No. 11, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: V. Kapur, K. M. Sancier, A. Sanjurjo, S. Leach, S. Westphal, R. Bartlett, and L. Nanis, October 1978; Quarterly Progress Report No. 12, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: L. Nanis, A. Sanjurjo, and S. Westphal, January 1979. Quarterly Progress Report No. 13, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: L. Nanis, A. Sanjurjo, K. Sancier, R. Bartlett, and S. Westphal, April 1979; Quarterly Progress Report No. 14, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: L. Nanis, A. Sanjurjo, and K. Sancier, July 1979; Quarterly Progress Report No. 15, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: L. Nanis, A. Sanjurjo, and K. Sancier, November 1979; Draft Final Report, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: L. Nanis, A. Sanjurjo, K. Sancier, and R. Bartlett, March 1980; and Final Report, "Novel Duplex Vapor-Electrochemical Method for Silicon Solar Cell", by: L. Nanis, A. Sanjurjo, K. Sancier, and R. Bartlett, March 1980. The subject matter of the aforementioned reports are incorporated herein by reference.
Number | Name | Date | Kind |
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4233338 | Ricard et al. | Nov 1980 | |
4388286 | Kapur et al. | Jun 1983 | |
4442082 | Sanjurjo | Apr 1984 | |
4446120 | Schmidt et al. | May 1984 | |
4529576 | Sancier | Jun 1985 | |
4563976 | Foell et al. | Jan 1986 | |
4563979 | Falckenberg et al. | Jan 1986 |
Number | Date | Country | |
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Parent | 453337 | Dec 1982 |