Recovery of Valuable Chlorosilane Intermediates by a Novel Waste Conversion Process

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From 1994 to 2001, Dow Corning studied a waste recycling process to recover direct process residues (DPR) resulting from the production of silicone precursors. Over the course of eight years, Dow Corning constructed and operated a pilot plant, a small scale commercial plant, and a full scale plant. The process reacts DPR with hydrogen and chlorosilane monomers at high temperature and high pressure. The process converted 85% of the DPR to valuable chlorosilane monomers such as dimethyldichlorosilane and methyldichlorosilane. When feeding methyltrichlorosilane, the process converted 30% of the MeSiCl3 to other monomers. Alternate co-feed monomers were tested. By converting waste ... continued below

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vp.; OS: Windows 2000

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Brinson, J. Ashley June 20, 2002.

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Description

From 1994 to 2001, Dow Corning studied a waste recycling process to recover direct process residues (DPR) resulting from the production of silicone precursors. Over the course of eight years, Dow Corning constructed and operated a pilot plant, a small scale commercial plant, and a full scale plant. The process reacts DPR with hydrogen and chlorosilane monomers at high temperature and high pressure. The process converted 85% of the DPR to valuable chlorosilane monomers such as dimethyldichlorosilane and methyldichlorosilane. When feeding methyltrichlorosilane, the process converted 30% of the MeSiCl3 to other monomers. Alternate co-feed monomers were tested. By converting waste DPR to valuable intermediates, the technology significantly reduces waste from the basic silicones manufacturing process.

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vp.; OS: Windows 2000

Notes

OSTI as DE00795522

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  • Other Information: PBD: 20 Jun 2002

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  • Report No.: DOE/AL/99566-4
  • Grant Number: FC04-94AL99566
  • DOI: 10.2172/795522 | External Link
  • Office of Scientific & Technical Information Report Number: 795522
  • Archival Resource Key: ark:/67531/metadc741038

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  • June 20, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • July 25, 2016, 7:06 p.m.

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Brinson, J. Ashley. Recovery of Valuable Chlorosilane Intermediates by a Novel Waste Conversion Process, report, June 20, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc741038/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.