Calcium and lanthanum solid base catalysts for transesterification
Abstract
In one aspect, a heterogeneous catalyst comprises calcium hydroxide and lanthanum hydroxide, wherein the catalyst has a specific surface area of more than about 10 m.sup.2/g. In another aspect, a heterogeneous catalyst comprises a calcium compound and a lanthanum compound, wherein the catalyst has a specific surface area of more than about 10 m.sup.2/g, and a total basicity of about 13.6 mmol/g. In further another aspect, a heterogeneous catalyst comprises calcium oxide and lanthanum oxide, wherein the catalyst has a specific surface area of more than about 10 m.sup.2/g. In still another aspect, a process for preparing a catalyst comprises introducing a base precipitant, a neutral precipitant, and an acid precipitant to a solution comprising a first metal ion and a second metal ion to form a precipitate. The process further comprises calcining the precipitate to provide the catalyst.
- Inventors:
- Issue Date:
- Research Org.:
- Wayne State Univ., Detroit, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1202363
- Patent Number(s):
- 9089833
- Application Number:
- 13/127,614
- Assignee:
- Wayne State University (Detroit, MI)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- DOE Contract Number:
- FG36-05GO85005
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2009 Nov 05
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Ng, K. Y. Simon, Yan, Shuli, and Salley, Steven O. Calcium and lanthanum solid base catalysts for transesterification. United States: N. p., 2015.
Web.
Ng, K. Y. Simon, Yan, Shuli, & Salley, Steven O. Calcium and lanthanum solid base catalysts for transesterification. United States.
Ng, K. Y. Simon, Yan, Shuli, and Salley, Steven O. Tue .
"Calcium and lanthanum solid base catalysts for transesterification". United States. https://www.osti.gov/servlets/purl/1202363.
@article{osti_1202363,
title = {Calcium and lanthanum solid base catalysts for transesterification},
author = {Ng, K. Y. Simon and Yan, Shuli and Salley, Steven O.},
abstractNote = {In one aspect, a heterogeneous catalyst comprises calcium hydroxide and lanthanum hydroxide, wherein the catalyst has a specific surface area of more than about 10 m.sup.2/g. In another aspect, a heterogeneous catalyst comprises a calcium compound and a lanthanum compound, wherein the catalyst has a specific surface area of more than about 10 m.sup.2/g, and a total basicity of about 13.6 mmol/g. In further another aspect, a heterogeneous catalyst comprises calcium oxide and lanthanum oxide, wherein the catalyst has a specific surface area of more than about 10 m.sup.2/g. In still another aspect, a process for preparing a catalyst comprises introducing a base precipitant, a neutral precipitant, and an acid precipitant to a solution comprising a first metal ion and a second metal ion to form a precipitate. The process further comprises calcining the precipitate to provide the catalyst.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 28 00:00:00 EDT 2015},
month = {Tue Jul 28 00:00:00 EDT 2015}
}
Works referenced in this record:
Surface Properties of CaO (or BaO)-La2O3-MgO Catalysts and Their Performance in Oxidative Coupling of Methane
journal, May 1997
- Choudhary, Vasant R.; Rane, Vilas H.
- Journal of Chemical Technology & Biotechnology, Vol. 69, Issue 1, p. 63-69
The Selective Catalytic Reduction of Nitric Oxide with Methane over La2O3–CaO Systems: Synergistic Effects and Surface Reactivity Studies of NO, CH4, O2, and CO2 by Transient Techniques
journal, September 2000
- Costa, C. N.; Anastasiadou, T.; Efstathiou, A. M.
- Journal of Catalysis, Vol. 194, Issue 2
Inhibition of gas-phase oxidation of ethylene in the oxidative conversion of methane and ethane over CaO, La2O3/CaO and SrO–La2O3/CaO catalysts
journal, December 1998
- Yu, Lin; Li, Wenzhao; Ducarme, V.
- Applied Catalysis A: General, Vol. 175, Issue 1-2, p. 173-179
Alkaline earth / rare earth lean NOx catalyst
patent, March 2005
- LaBarge, William J.; Hemingway, Mark; Kupe, Joachim
- US Patent Document 6,864,213