Handbook of Solvents - George Wypych - ChemTech - Ventech!

14.24 Pulp and paper 1023
8 Hughes F, TAPPI 1997 Hot Melt Symposium. Conference Proceedings. TAPPI. Hilton Head, SC,
15th-18th June 1997, p.15-21.
9 A Mykytiuk, Paper, Film & Foil Converter, 72, No.8, 120-3 (1998).
10 A Harris, Paper, Film & Foil Converter, 72, No.5, 198-9 (1998).
11 R M Podhajny, Paper, Film & Foil Converter, 72, No.12, 24 (1998).
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16 R J Catena, M C Mathew, S E Barreto, N Marinelli, US Patent 5,658,968, Sun Chemical Corporation,
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17 J M Kruse, US Patent 5,663,217, XAAR Ltd., 1997
18 P D Whymusis, US Patent 5,714,526, Henkel Corporation, 1998.
19 H Yanagi, S Wakabayashi, K Kaida, US Patent 5,736,606, Kao Corporation, 1998.
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21 W R Likavec, C R Bradley, US Patent 5,866,628, Day-Glo Color Corporation, 1999.
14.24 PULP AND PAPER
George Wypych
ChemTec Laboratories, Inc., Toronto, Canada
The US pulp and paper industry operates over 550 facilities which employ over 200,000
people. Total shipments are $60 billion with an additional $80 billion in converted products.
Several processes contribute to the emission of solvents. These include chemical pulping
kraft process (terpenes, alcohols, methanol, acetone, chloroform), bleaching (acetone,
dichloromethane, chloroform, methyl ethyl ketone, carbon disulfide, chloromethane, and
trichloroethane), wastewater treatment (terpenes, alcohols, methanol, acetone, chloroform
and methyl ethyl ketone), and evaporators in chemical recovery systems (alcohols and
terpenes).
Table 14.24.1. Reported solvent releases from the pulp and paper industry in 1995
[Data from Ref. 2]
Solvent Amount, kg/year Solvent Amount, kg/year
benzene 320,000 methanol 63,000,000
n-butyl alcohol 46,000 methyl ethyl ketone 700,000
chloroform 4,500,000 methyl isobutyl ketone 10,000
chloromethane 260,000 1,2,4-trimethylbenzene 17,000
cresol 410,000 toluene 580,000
ethylbenzene 22,000 xylene 49,000
ethylene glycol 37,000 o-xylene 260
hexane 150,000