The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 15, 2011
Filed:
May. 16, 2008
Victor Shang-yi Lin, Ames, IA (US);
Yang Cai, Ames, IA (US);
Carla Kern, Ames, IA (US);
Joel I. Dulebohn, Lansing, MI (US);
Jennifer A. Nieweg, Ames, IA (US);
Victor Shang-Yi Lin, Ames, IA (US);
Yang Cai, Ames, IA (US);
Carla Kern, Ames, IA (US);
Joel I. Dulebohn, Lansing, MI (US);
Jennifer A. Nieweg, Ames, IA (US);
Iowa State University Research Foundation, Inc., Ames, IA (US);
Claytec, Inc., East Lansing, MI (US);
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.