C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 22/12 (2006.01) B09B 3/00 (2006.01) B09C 1/08 (2006.01) C02F 11/00 (2006.01) C04B 22/14 (2006.01) C04B 28/02 (2006.01) C04B 28/24 (2006.01) A62D 3/00 (2006.01)
Patent
CA 2079575
A toxic waste fixant for detoxification of a contaminated material includes a mixture of ferric sulfate, manganese sulfate, organophilic clays, an oxidizer and aluminium sulfate. The respective amounts are preferably about 15-19% b.w. of ferric sulfate, about 15-19% b.w. of manganese sulfate, about 37-46% b.w. of organophilic clay, about 16-19% b.w. of an oxidizer and about 0-12,5% b.w. of alumimium sulfate. All or part of the ingredients in said fixant may be added as a pretreatment into contaminated materials such as soils, sediments, or sludges. This pretreatment can range from 0 to 100% b.w. to said material. The fixant is blended with various amounts of Portland cement, and/or blast furnace slag, or lime, or gypsum, or coal fly ash, or cement kiln dust as a means to derive a chemical fixation treatment for contaminated soils, sediments, and sludges to prevent the leaching of organic and inorganic compounds and elements.
Hooykaas Carel Willem Jan
Newton Jeffrey Porter
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Costa Carmelo
Pelt & Hooykaas B.v.
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