Handbook of Solvents - George Wypych - ChemTech - Ventech!

960 George Wypych
Table 14.17.1. Reported solvent releases from the motor vehicle assembly industry in
1995 [Data from Ref. 2]
Solvent Amount, kg/year Solvent Amount, kg/year
benzene 13,000 methyl ethyl ketone 2,320,000
n-butyl alcohol 2,260,000 methyl isobutyl ketone 3,060,000
sec-butyl alcohol 86,000 N-methyl-2-pyrrolidone 193,000
tert-butyl alcohol 4,200 methyl tert-butyl ether 32,000
cyclohexane 35,000 tetrachloroethylene 140,000
dichloromethane 380,000 1,1,1-trichloroethane 730,000
ethylbenzene 1,370,000 trichloroethylene 1,300,000
ethylene glycol 180,000 1,2,4-trimethylbenzene 1,120,000
isopropyl alcohol 9,000 toluene 2,610,000
hexane 95,000 xylene 10,800,000
methanol 1,550,000 m-xylene 25,000
Table 14.17.2. Reported solvent transfers from the motor vehicle assembly industry in
1995 [Data from Ref. 2]
Solvent Amount, kg/year Solvent Amount, kg/year
benzene 3,400 methyl ethyl ketone 2,100,000
n-butyl alcohol 1,030,000 methyl isobutyl ketone 4,700,000
sec-butyl alcohol 9,000 N-methyl-2-pyrrolidone 330,000
tert-butyl alcohol 1,000 methyl tert-butyl ether 2,300
cyclohexane 670 tetrachloroethylene 49,000
dichloromethane 450,000 1,1,1-trichloroethane 140,000
ethylbenzene 1,740,000 trichloroethylene 480,000
ethylene glycol 605,000 1,2,4-trimethylbenzene 330,000
isopropyl alcohol 2,000 toluene 2,020,000
hexane 25,000 xylene 9,200,000
methanol 760,000 m-xylene 2,100
ence of chlorine. Powder coatings are available 7 but they require a high energy input. These
problems are apparent but the solution to them will take several years to implement due, in
large part, to the long term testing needed to confirm coating performance (up to 5 years in
Florida).