Biocidal additives for lubricating/cooling fluids
This article reports on the synthesis of new biocidal products for the protection of water emulsions of lubricating/cooling fluids (LCFs) against microbiological damage. The new biocides are based on compounds belonging to the classes of oxazolidines and oxazines, and also compounds of these classes but activated by nitro derivatives of aromatic hydrocarbons. Results are presented from evaluations of the biocidal activity of the new products with respect to aerobes, anaerobes, and fungi growing in a 3% emulsion of the widely used LCF Ukrinol-1. The comparative evaluation was based on the optimal biocidal concentration corresponding to the smallest quantity of added biocide to give maximum suppression of the microorganisms in a minimum time, and with the longest period of effectiveness. The lubricating properties of the biocides were evaluated in an emulsion of the Ukrinol-1 LCF is a four-ball tester. It is concluded that the developed biocides are homogeneous, transparent liquids with a specific odor and can be considered as nontoxic to man; they mix readily with components used in formulating LCFs and detergents (sulfonates, oxyethylated alcohols, phenols, polyglycols, fatty acid soaps, etc.). They are readily soluble in water and in oils. Includes 3 tables.
- Research Organization:
- All-Union Sci-Res. and Design Inst. of the Petroleum Refining and Petrochemical Industry
- OSTI ID:
- 6732558
- Journal Information:
- Chem. Technol. Fuels Oils (Engl. Transl.); (United States), Vol. 19:8; Other Information: Trans. from Khimiya i Tekhnologiya Topliv i Masel, Aug 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COOLANTS
ADDITIVES
ANTIFOULANTS
LUBRICANTS
ALCOHOLS
AROMATICS
BIODEGRADATION
BIOLOGICAL FOULING
CARBOXYLIC ACIDS
CHEMICAL PREPARATION
COMPARATIVE EVALUATIONS
DETERGENTS
EMULSIONS
FUNGI
GLYCOLS
HYDROCARBONS
INHIBITION
LIQUIDS
MICROORGANISMS
NITRO COMPOUNDS
ODOR
OXAZOLES
PHENOLS
SOLUBILITY
SULFONATES
WATER
AZOLES
CHEMICAL REACTIONS
COLLOIDS
DECOMPOSITION
DISPERSIONS
EMULSIFIERS
FLUIDS
FOULING
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANOLEPTIC PROPERTIES
OXYGEN COMPOUNDS
PLANTS
SURFACTANTS
SYNTHESIS
WETTING AGENTS
020500* - Petroleum- Products & By-Products