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Title: Compatibility of manufacturing process fluids with R-134a and polyolester lubricant. Final report

Technical Report ·
DOI:https://doi.org/10.2172/273819· OSTI ID:273819

This report includes a broad list of processing fluids that are known to be used to manufacture air conditioning and refrigeration products. Sixty-four process fluids from this list were selected for compatibility studies with R-134a and ICI EMKARATE RL32H (32 ISO) polyolester lubricant. Solutions or suspensions of the process fluid residues in polyolester lubricant were heated for 14 days at 175{degrees}C (347{degrees}F) in evacuated sealed glass tubes containing only valve steel coupons. Miscibility tests were performed at 90 wt.% R-134a, 10 wt.% polyolester lubricant with process fluid residue contaminate and were scanned in 10{degrees}C (18{degrees}F) increments over a temperature range of ambient to -40{degrees}C (-40{degrees}F). Any sign of turbidity, haze formation or oil separation was considered the immiscibility point.

Research Organization:
Air-Conditioning and Refrigeration Technology Inst., Inc., Arlington, VA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
FG02-91CE23810
OSTI ID:
273819
Report Number(s):
DOE/CE/23810-55; ON: DE96014099; TRN: 96:004730
Resource Relation:
Other Information: PBD: Jul 1996
Country of Publication:
United States
Language:
English