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Synthesis of Acrylates and Methacrylates from Coal-Derived Syngas.
Research Triangle Institute (RTI), Eastman Chemical Company, and Bechtel collectively are developing a novel process for the synthesis of methyl methacrylate (MMA) from coal-derived syngas, under a contract from the U.S. Department of Energy/Federal Energy Technology Center (DOE/FETC). This three-step process consists of synthesis of a propionate, its condensation with formaldehyde, and esterification of resulting methacrylic acid (MAA) with methanol to produce MMA. Over the last quarter, RTI carried out activity tests on a pure (99 percent) Nb{sub 2}O{sub 5} catalyst, received from Alfa Aesar, under the following experimental conditions: T=300 C; P=4 atm, 72:38:16:4:220 mmol/h, PA:H{sub 2}0:HCHO:CH{sub 3}0H:N{sub 2}; 5-g catalyst charge. For the pure material, the MAA yields (based on HCHO and PA) were at 8.8 and 1.5 percent, clearly inferior compared to those for a 10-percent Nb{sub 2}O{sub 5}/Si0{sub 2} catalyst (20.1 and 4.5 percent). The X-ray diffraction (XRD) patterns of pure Nb{sub 2}O{sub 5} and 20-percent Nb{sub 2}O{sub 5}/Si0{sub 2} that while pure Nb{sub 2}O{sub 5} is very highly crystalline, Si0{sub 2} support for an amorphous nature of the 20 percent Nb{sub 2}O{sub 5}/Si0{sub 2} catalyst the last quarter, RTI also began research on the use of dimethyl ether (DME), product of methanol dehydrocondensation, as an …
Date:
October 17, 1997
Creator:
Gogate, M. R.; Spivey, J. J.; Zoeller, J. R.; Colberg, R. D.; Choi, G. N. & Tam, S. S.
Object Type:
Report
System:
The UNT Digital Library
The Wynnewood Gazette (Wynnewood, Okla.), Vol. 89, No. 27, Ed. 1 Thursday, October 17, 1991
Weekly newspaper from Wynnewood, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 17, 1991
Creator:
Golden, Larry D.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0114.0071]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Troy Bowen, Steve Scott and Jewell Lynch, from left, attend the Buffalo Bash Art Preview '92 at the Red Earth Indian Center."
Date:
October 17, 1992
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0119A.0399]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "In the photo below, Donnie, 2 1/2-month-old Raven and Della Cabaniss preview the art."
Date:
October 17, 1992
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0230.0355]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Developer/builder Mike Grissom, his wife Lauren and their daughter Sara pose in the family room of their Creekside Estate home."
Date:
October 17, 1992
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0310B.0341]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "It's tough enough for most people to tell identical twins apart."
Date:
October 17, 1990
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0335.0103]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oklahoma City mascots will join in the fun at the "Halloween Magic" celebration at Kirkpatrick Center."
Date:
October 17, 1990
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0353.0075]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Gov. Henry Bellmon and the State Arts council of Oklahoma honored 27 arts leaders and organizations statewide Wednesday."
Date:
October 17, 1990
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0392.0727]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Martha A. McSteen is president of the 5-million member National Committee to Preserve Social Security and Medicare"
Date:
October 17, 1990
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0927.0476]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Richard Ross, Lucy Cheatwood, Belva Neal and Howard and Howard Vincent, from left, talk at the Registry Club dinner dance at the Oklahoma City Golf"
Date:
October 17, 1992
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0979.0508]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "A bulldozer tears into the old Army barracks at Oklahoma City University on Wednesday."
Date:
October 17, 1990
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1076.0128]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "It's tough enough for most people to tell identical twins apart."
Date:
October 17, 1990
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1076.0129]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "It's tough enough for most people to tell identical twins apart."
Date:
October 17, 1990
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B1363.0845]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. Charles Whipple, Betty Rogers, Bert Reed and Martha Baxter, from left, enjoy the evening."
Date:
October 17, 1992
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Improving reservoir conformance using gelled polymer systems. Quarterly technical progress report, July 1, 1995--September 30, 1995
Objectives of this project are to identify and develop gelled polymer systems which have potential to improve reservoir conformance to fluid displacement systems; determine the performance of these systems; and to develop methods to predict the capability of these systems to recover oil from petroleum reservoirs. Gels investigated include an aqueous polysaccharide, a chromium-polacrylamide, and an aluminium citrate-polyacrylamide system.
Date:
October 17, 1995
Creator:
Green, D.W. & Willhite, G.P.
Object Type:
Report
System:
The UNT Digital Library
Detroit Weekly (Detroit, Tex.), Vol. 5, No. 39, Ed. 1 Thursday, October 17, 1991
Weekly newspaper from Detroit, Texas that includes local, state, and national news along with advertising.
Date:
October 17, 1991
Creator:
Halyard, Dale
Object Type:
Newspaper
System:
The Portal to Texas History
Guest Artist Lecture: 1992-10-17 – Mark Hansen
Access:
Use of this item is restricted to the UNT Community
Lecture recital presented at 1992 American Liszt Society Festival UNT College of Music Concert Hall.
Date:
October 17, 1992
Creator:
Hansen, Mark
Object Type:
Sound
System:
The UNT Digital Library
The Rice Thresher (Houston, Tex.), Vol. 85, No. 8, Ed. 1 Friday, October 17, 1997
A weekly student newspaper from the Rice University in Houston, Texas that includes campus news and commentaries along with advertising.
Date:
October 17, 1997
Creator:
Hardi, Joel & Siy, Angelique
Object Type:
Newspaper
System:
The Portal to Texas History
Sanger Courier (Sanger, Tex.), Vol. 98, No. 3, Ed. 1 Thursday, October 17, 1996
Weekly newspaper from Sanger, Texas that includes local, state, and national news along with extensive advertising.
Date:
October 17, 1996
Creator:
Hardy, Lisa
Object Type:
Newspaper
System:
The Portal to Texas History
[Photograph 2012.201.B0147.0177]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "State Rep. Kevin Cox, D-Oklahoma City, uses an old picture of himself and his wife to illustrate a pint during a news conference Monday."
Date:
October 17, 1994
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
A compound power-law model for volcanic eruptions: Implications for risk assessment of volcanism at the proposed nuclear waste repository at Yucca Mountain, Nevada
Much of the ongoing debate on the use of nuclear power plants in U.S.A. centers on the safe disposal of the radioactive waste. Congress, aware of the importance of the waste issue, passed the Nuclear Waste Policy Act of 1982, requiring the federal government to develop a geologic repository for the permanent disposal of high level radioactive wastes from civilian nuclear power plants. The Department of Energy (DOE) established the Office of Civilian Radioactive Waste Management (OCRWM) in 1983 to identify potential sites. When OCRWM had selected three potential sites to study, Congress enacted the Nuclear Waste Policy Amendments Act of 1987, which directed the DOE to characterize only one of those sites, Yucca Mountain, in southern Nevada. For a site to be acceptable, theses studies must demonstrate that the site could comply with regulations and guidelines established by the federal agencies that will be responsible for licensing, regulating, and managing the waste facility. Advocates and critics disagree on the significance and interpretation of critical geological features which bear on the safety and suitability of Yucca Mountain as a site for the construction of a high-level radioactive waste repository. Recent volcanism in the vicinity of Yucca Mountain is readily recognized …
Date:
October 17, 1994
Creator:
Ho, Chih-Hsiang
Object Type:
Report
System:
The UNT Digital Library
Guest Artist Recital: 1992-10-17 – Ian Hobson, piano
Access:
Use of this item is restricted to the UNT Community
Guest artist recital performed at the UNT College of Music Recital Hall.
Date:
October 17, 1992
Creator:
Hobson, Ian, 1952-
Object Type:
Sound
System:
The UNT Digital Library
Garber Billings News (Garber, Okla.), Vol. 97, No. 1, Ed. 1 Thursday, October 17, 1996
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 17, 1996
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0246.0195]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Oklahoma State Cowboys inducted, from left, Jim Traber, Allie P. Reynolds, Joe Buck, Pete Incaviglia and Mickey Tettleton into it's baseball Hall of Fame on Saturday at Reynolds Stadium."
Date:
October 17, 1992
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History