Title: Method of reducing fumes from vessel of molten asphalt
Application Number: 00804915 Application Date: 2000.03.09
Publication Number: 1345360 Publication Date: 2002.04.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C10C3/02;C10C3/10
Applicant(s) Name: Owens Corning Corp. Address:
Inventor(s) Name: Donn R. Vermilion;Michael R. Franzen;Richard T. Ja
Attorney & Agent: wang panbin
Abstract:
    In a method of melting asphalt (24) in a vessel (10), the molten asphalt normally emitting fumes, 0.2 weight percent to 6 weight percent of a polymer is added to the asphalt to reduce the visual opacity of the fumes by at least 25% over the same asphalt without the polymer. In another embodiment, the total emissions of benzene soluble suspended particulates is reduced by at least 15% over the same asphalt without the polymer. Preferably, the added polymer has a melt flow index of from 15 grams/10 minutes to 95 grams/10 minutes, and the added polymer reduces the visual opacity of the fumes by forming a skim on the upper surface of the molten asphalt.
Time: 5
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