Composition of water-soluble metalworking fluid using distillation residue generated in production of biodiesel

Abstract

A composition of a water-soluble metalworking fluid used in metal machining is formed by adding 5 to 70 wt % additive to 5 to 95 wt % distillation residues that is generated in production of biodiesel and used as lubricating base oil, and 0 to 70 wt % ion exchange water.

1 . A composition of a water-soluble metalworking fluid comprises 5 to 70 wt % of additive added to 95 wt % of distillation residue that is generated in production of biodiesel and used as lubricating base oil, and 0 to 40 wt % of ion exchange water. 
     
     
         2 . The composition according to  claim 1 , wherein the distillation residue of the biodiesel is produced from canola oil, soybean oil, palm oil or jatropha oil. 
     
     
         3 . The composition according to  claim 1 , wherein the additive comprises one or more selected from the group consisting of petroleum-based hydrocarbon, vegetable oil and synthetic ester. 
     
     
         4 . The composition according to  claim 3 , wherein the petroleum-based hydrocarbon is a refined mineral oil, and has a kinematic viscosity of 5 to 1000 cSt at 40□. 
     
     
         5 . The composition according to  claim 3 , wherein the vegetable oil and the synthetic ester comprise:
 a lubricating additive selected from the group consisting of soybean oil, canola oil, sunflower oil, jatropha oil, palm oil, neopentyl glycol dioleate, trimethylolpropane trioleate, pentaerythritol tetraoleate, propylene glycol dioleate, ricinoleic acid condensate, and methyl ester of soybean oil, canola oil, jatropha oil or palm oil;   a surfactant selected from the group consisting of ethoxide of lauryl alcohol or oleyl alcohol, ethoxide of castor oil, ethoxide of laurylamine or oleylamine, amine salt of oleic acid, amine salt of tall oil, amine salt of erucic acid, sulfonate, Hypermer A 70, Targat V 20, Veg Ester GY-112, Addconate H, Addconate M, succinic acid derivatives, amine salt of succinic acid and PEG-fatty acid ester;   a pH booster selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, triisopropanolamine, aminomethyl propanol and diglycolamine;   a metal corrosion inhibitor selected from the group consisting of benzotriazol, tolytriazol and derivatives thereof;   a rust inhibitor selected from the group consisting of sebacic acid, Corfree M1, Irgacor 190 plus and derivatives thereof;   a defoamer selected from the group consisting of polydimethyl siloxane, denatured polydimethyl siloxane, organic silicon derivatives and a silicon-based defoamer of silica; and   a preservative selected from the group consisting of thiazoline, pyridine, morpholine, phenol, nitro- and IPBC-based preservatives.