Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...
Reexamination Certificate
2011-03-15
2011-03-15
Carr, Deborah D (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Fatty compounds having an acid moiety which contains the...
C502S172000
Reexamination Certificate
active
07906665
ABSTRACT:
The invention provides efficient, inexpensive, and environmental friendly catalysts and catalyst systems. The catalysts can be used to catalyze esterification and/or transesterification reactions, for example, for the preparation of biodiesel. Kiln dust, such as cement kiln dust (CKD) or lime kiln dust (LKD) can be used to convert a variety of feedstock acids and/or esters to biodiesel in high yield under mild conditions. The CKD and LKD catalyst systems are recyclable esterification or transesterification catalysts that can be used to prepare biodiesel, such as methyl soyate, from various feedstocks, including vegetable oils and animal fats.
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Cai Yang
Dulebohn Joel I.
Kern Carla
Lin Victor Shang-Yi
Nieweg Jennifer A.
Carr Deborah D
Claytec, Inc.
Iowa State University & Research Foundation, Inc.
Schwegman Lundberg & Woessner, P.A.
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