METHOD OF PREPARING BINDER FOR BUILDING INDUSTRY Russian patent published in 2004 - IPC

Abstract RU 2223300 C1

FIELD: manufacture of building materials. SUBSTANCE: binding agent is prepared by copolymerization of pond acid tar, 75-80%, with ammonium sulfate production waste, 5-15%, and oil bitumen, 10-15%. Acid tar is washed from sulfuric acid, ammonium sulfate production waste includes 46-47% methyl methacrylate, 40-42% methyl α-hydroxyisobutyrate, 5-6% methacrylic acid, and trace amounts pf water and ammonia. Binding agent may be used both in road building and building compositions. EFFECT: reduced expenses due to utilized waste and met requirement for repetitive heatings with no loss in quality. 2 tbl, 2 ex

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RU 2 223 300 C1

Authors

Barskov M.S.

Krylov I.P.

Dates

2004-02-10—Published

2002-10-30—Filed