Evaluation of selected chemical processes for production of low-cost silicon, (Phase II). Seventh quarterly progress report, April 1, 1977--June 30, 1977

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During Phase I of this program (concluded in October of 1976), economic analyses and experimental work were carried out on the fluidized-bed zinc reduction of SiCl/sub 4/ and on several modifications of the iodide process (SiI/sub 4/ decomposition or reduction) which led to the selection of the fluidized-bed zinc reduction of SiCl/sub 4/ as a promising candidate for supplying low-cost solar- or semiconductor-grade silicon. Phase II of the program, which is described, has as its objective, designing an experimental facility (tentative 25 MT Si/year capacity) and carrying out an experimental program to support the design effort. Updates of plant and ... continued below

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Pages: 32

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Blocher, J.M. Jr.; Browning, M.F.; Wilson, W.J. & Carmichael, D.C. June 20, 1977.

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Description

During Phase I of this program (concluded in October of 1976), economic analyses and experimental work were carried out on the fluidized-bed zinc reduction of SiCl/sub 4/ and on several modifications of the iodide process (SiI/sub 4/ decomposition or reduction) which led to the selection of the fluidized-bed zinc reduction of SiCl/sub 4/ as a promising candidate for supplying low-cost solar- or semiconductor-grade silicon. Phase II of the program, which is described, has as its objective, designing an experimental facility (tentative 25 MT Si/year capacity) and carrying out an experimental program to support the design effort. Updates of plant and production cost estimates at the 1000 MT/year level are to be made based on the design experience.

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Pages: 32

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Dep. NTIS, PC A03/MF A01.

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  • Report No.: ERDA/JPL/954339-77/7
  • Grant Number: NAS-7-100-954339
  • DOI: 10.2172/5445766 | External Link
  • Office of Scientific & Technical Information Report Number: 5445766
  • Archival Resource Key: ark:/67531/metadc1064675

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  • June 20, 1977

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • March 23, 2018, 2:14 p.m.

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Blocher, J.M. Jr.; Browning, M.F.; Wilson, W.J. & Carmichael, D.C. Evaluation of selected chemical processes for production of low-cost silicon, (Phase II). Seventh quarterly progress report, April 1, 1977--June 30, 1977, report, June 20, 1977; United States. (digital.library.unt.edu/ark:/67531/metadc1064675/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.