Phase transfer catalysis scrubber

Details Phase transfer catalysis scrubber Phase transfer catalysis scrubber

2006-08-15

2006-08-15

Solola, Taofiq (Department: 1626)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

C570S101000, C422S177000

Reexamination Certificate

active

07090812

ABSTRACT:
A method and system for reactively destroying alkyl halides in volume or stream of gas. The method and device employ nucleophilic reaction of the alkyl halide under phase transfer catalysis conditions. The method and system are useful for scrubbing applications requiring the reduction of alkyl halide concentrations to very low levels.

REFERENCES:
patent: 4211761 (1980-07-01), Tung
patent: 4324775 (1982-04-01), Tung
patent: 5213604 (1993-05-01), Saito et al.
patent: 5419885 (1995-05-01), Doran et al.
patent: 5481042 (1996-01-01), Burba, III et al.
patent: 5681470 (1997-10-01), Safi
patent: 5904909 (1999-05-01), Yates et al.
patent: 6051198 (2000-04-01), Sano et al.
patent: 6106853 (2000-08-01), Cox et al.
patent: 6207120 (2001-03-01), Belmonte et al.
Bielski et al., Abstract of Paper American Chemical Society, 2002, 224, No. 78.
Bielski et al., 2002, CAS:PREV200200490999.
Jianying Gan, Scott R. Yates; “Recapturing and decomposing methyl bromide in fumigation effluents”; Journal of Hazardous Materials S7, 1998; pp 249-258; Elsevier Science B.V.
J. Gan, S.R. Yates, J.O. Becker; “Ammonium Thiosulfate Fertilizer Reduces Methyl Bromide Emissions From Soil”; 2 pp; http://www.ars.usda.gov/is
p/mba/july98/ammonium.htm Jul. 16, 2003.
James G. Leesch, Gerhard F. Knapp; “Trapping/Destroying Methyl Bromide on Activated Carbon Following Commodity Fumigation”; MEBR Newsletter, Oct. 1998, 2 pp.
Laurence G. Miller, Shaun M. Baesman, Ronald S. Oremland; “Bioreactors for Removing Methyl Bromide following Contained Fumigations”; Environmental Science & Technology, vol. 37, No. 8, 2003; pp 1698-1704.
Jon D. Snyder, James G. Leesch; “Methyl Bromide Recovery on Activated Carbon with Repeated Absorption and Electrothermal Regeneration”; Ind. Eng. Chem. Res. 2001, 40; pp 2925-2933; American chemical Society.
A. R. Loch, K. A. Lippa, D. L. Carlson, Y. P. Chin, S. J. Traina, A. L. Roberts; “Nucleophilic Aliphatic Substitution Reactions of Propachlor, Alachior, and Metolachlor with Bisulfide (HS−) (Sn2−)”; Environmental Science & Technology, vol. 36, No. 19, 2002; pp 4065-4073; American Chemical Society.
Maw-Ling Wang, Yao-Hsuan Tseng; “Phase-transfer catalytic reaction of dibromo-o-xylene and 1-butanol in two-phase solution”; Journal of Molecular Catalysis A; Chemical 179 (2002); pp 17-26; Elsevier Science B.V.
Mordecai Rabinovitz, Yoram Cohen, Marc Halpern; “Hydroxide Ion Initiated Reactions Under Phase Transfer Catalysis Conditions: Mechanism and Implications”; Angew. Chem. Int. Ed. Engl. 25 (1986), pp 960-970.
Branko Jur{hacek over (s)}ić; “Synthetic Application of Micellar Catalysis. Williamson's Synthesis of Ethers”; Tetrahedron vol. 44, No. 21, 1998; pp 6677to 6680; Pergamon Press plc.
Domenico Albanese, Dario Landini, Angelamaria Maia, Michele Penso; “Key Role of Water for Nucleophilic Substitutions in Phase-Transfer-Catalyzed Processes; A Mini-Review”; Ind. Eng. Chem. Res. 2001, vol. 40; pp 2396-2401; American Chemical Society.

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