Biocides for lubricant rancidity and biofouling prevention
- FQS Ltd., Inc., Princeton, NJ (United States)
Lubricant systems provide a good environment for microbial communities. Growing most abundantly on surfaces, microbes can change lubricant performance properties by selectively depleting functional additives. Moreover, microbial metabolites can stimulate corrosion and induce invert emulsion formation. The keys to microbial contamination control are good industrial hygiene, monitoring and timely treatment. There are more than 30 USEPA registered metalworking fluid biocides. Each has an application where it provides cost-effective protection. Biocides should be selected based on performance in a particular coolant and system. Most often, biocides with limited solubility in non-polar solvents work better in lubricants. Bench tests provide a relatively inexpensive method for evaluating alternative treatments. Bench test data need to be confirmed through field evaluations. Bioresistant additives that have no obvious functionality other than replacing registered biocides should be considered with care. Properly used as one component of a complete lubricant system management program, data-driven biocide use can extend lubricant life dramatically, reduce downtime and create a healthier work environment.
- OSTI ID:
- 562163
- Journal Information:
- Iron and Steel Engineer, Journal Name: Iron and Steel Engineer Journal Issue: 10 Vol. 74; ISSN IRSEA5; ISSN 0021-1559
- Country of Publication:
- United States
- Language:
- English
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