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STABILIZED HEAT TRANSFER COMPOSITIONS, METHODS AND SYSTEMS

  • US 20200131418A1
  • Filed: 12/24/2019
  • Published: 04/30/2020
  • Est. Priority Date: 07/29/2016
  • Status: Active Grant
First Claim
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1. A heat transfer compositions comprising refrigerant, lubricant and stabilizer, said refrigerant consisting essentially of the following three compounds, with each compound being present in the following relative percentages:

  • 39 to 45% by weight difluoromethane (HFC-32),1 to 4% by weight pentafluoroethane (HFC-125), and51 to 57% by weight trifluoroiodomethane (CF3I),said lubricant comprising polyol ester (POE) lubricant and/or polyvinyl ether (PVE) lubricant, and said stabilizer comprising alkylated naphthalene, wherein said alkylated naphthalene is present in the composition in an amount of from 1% to less than 10% by weight based on the weight of the alkylated naphthalene and the lubricant.

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