Recovery of lubricants from used cooling lubricants
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United States of America Patent
Stats
-
Feb 4, 2014
Grant Date -
Sep 22, 2011
app pub date -
Nov 4, 2009
filing date -
Nov 27, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a method for recovering lubricant or lubricant concentrate from a used mixture containing lubricant, the mixture containing lubricant and which is substantially dewatered is subjected to short path distillation at a temperature of at least 150° C. and a pressure of less than 1.5 mbar, in order to obtain a lubricant concentrate which can be recycled into cooling lubricants and which is free of very finely wear debris, metal soaps and polymers.
First Claim
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International Classification(s)
- 2009 Application Filing Year
- C10M Class
- 227 Applications Filed
- 178 Patents Issued To-Date
- 78.42 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C10M Class
- 0 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 4, 2025 |
