Process for metalworking fluid from heavy alkylate

A process for metalworking fluid from a heavy alkylate, concentrate composition comprising;

• (a) heavy alkylate having C20 to C22 alkyl carbon atoms on benzene ring, to replace mineral oil, in the concentration range of 40 to 85 weight percent of the metal working fluid concentrate,
• (b) at least one sulfonate or oleate emulsifier in the range of 10 to 40 weight percent of the metalworking fluid concentrate,
• (c) a synergetic combination of additives, (c1) at least one vegetable oil lubricity booster component in the concentration range of 2-10 percent of metal working fluid concentrate, (c2) an alkyl phenol or aromatic amine antioxidant component is in the concentration range of 50-500 mg/kg, (c3) a phenol fungicide component in the concentration range of 50-500 mg/kg, (c4) an organic sulfide or phosphosulfurized metal salt extreme pressure additive component in the concentration range of 50-500 mg/kg in the metal working fluid concentrate, (c5) a triazole or sulfonate antirust component in the concentration range of 50-500 mg/kg in the metal working fluid concentrate, (c6) an alcohol co-surfactant component in the range of 1-10 weight percent of metal working fluid concentrate, (c7) a sulfonate coupling agent in the range of 0.5 to 10 weight percent of metal working fluid concentrate, (c8) alkali or alkaline earth metal salt component in the range of 8-10 weight percent of metal working fluid concentrate, (d) said process comprises the steps of tailoring the heavy alkylate, removing of insoluble matter from the heavy alkylate followed by addition of emulsifier and vegetable oil to obtain the mixture;
• homogenising the resultant mixture at a temperature in the range of 30 to 100 degree Celsius;
• for about one hour with stirring;
• adding the antioxidant, fungicide, extreme pressure additives, anti trust component, co-surfactant, coupling agent, alkali, followed by addition of water to make up the quantity about 1 kg;
• homogenizing the mixture for about 30 minutes, adjusting the pH to 7-9 by addition of sodium carbonate;
• and cooling the resultant metal working fluid at room temperature, wherein the composition is suitable for use as soluble metalworking fluid as admixture or emulsion with water in concentration range from 20 to 80 weight percent.