CATALYSTS FOR THE PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY VAPOR PHASE HYDROGENOLYSIS OF CYCLIC ACETALS AND KETALS
申请人:Devon Thomas James
公开号:US20120330067A1
公开(公告)日:2012-12-27
Catalyst compositions of palladium supported on alumina or zirconium oxide supports having low or no silicon dioxide contents and having a specific surface area or modified with alkali, alkaline earth, or phosphine oxide compounds are selective in a vapor phase hydrogenolysis reaction to convert cyclic acetal compounds and/or cyclic ketal compounds in the presence of hydrogen to their corresponding hydroxy ether hydrocarbon reaction products.
PRODUCTION OF HYDROXY ETHER HYDROCARBONS BY VAPOR PHASE HYDROGENOLYSIS OF CYCLIC ACETALS AND KETALS
申请人:Devon Thomas James
公开号:US20120330066A1
公开(公告)日:2012-12-27
A vapor phase hydrogenolysis reaction to convert cyclic acetal compounds and/or cyclic ketal compounds in the presence of hydrogen to their corresponding hydroxy ether hydrocarbon reaction products using a supported noble metal catalyst. The hydrogenolysis reaction can be carried out in the vapor phase and in the absence of a polyhydroxyl hydrocarbon co-solvent.
Polyphosphine Polyoxides as Complexing Agents of Actinides for the Removal from the Nuclear Wastes or from the Human Body
作者:Henri-Jean Cristau、David Virieux、Jean-Luc Pirat、Eric Ansoborlo、Marie Helene Henge Napoli、François Paquet
DOI:10.1080/10426509908546292
日期:1999.1.1
synthesized two kinds of polyphosphine polyoxides. The first one has ether bridge, and the second one shows PCP linkage. Complexation properties of these compounds towards minor actinides (Np, Pu and Am) have been evaluated from liquid-liquid extraction and from transport by supported liquid membranes. In decorporation experiment, some of the synthesized phosphonates exhibit in vivo good uranyl or neptunium
Compositions and methods for using zwitterionic polymeric suds enhancers
申请人:Sivik Robert Mark
公开号:US20050124738A1
公开(公告)日:2005-06-09
The present invention relates to methods for using zwitterionic polymeric suds enhancers (stabilizers) to increase the suds and/or foam volume and suds and/or foam retention in suds-forming and/or foam-forming compositions comprising such zwitterionic polymeric suds stabilizers. Suitable suds-forming and/or foam-forming compositions comprise one or more zwitterionic polymeric suds stabilizers.
Compositions and methods for using polymeric suds enhancers
申请人:Sivik Robert Mark
公开号:US20050026803A1
公开(公告)日:2005-02-03
The present invention relates to methods for using polymeric suds enhancers (stabilizers) to increase the suds and/or foam volume and suds and/or foam retention in suds-forming and/or foam-forming compositions comprising such polymeric suds stabilizers. Suitable suds-forming and/or foam-forming compositions comprise one or more polymeric suds stabilizers. The polymeric suds stabilizers suitable for use in the methods and/or compositions of the present invention comprise cationic, anionic, and noncharged monomer units, or units having mixtures thereof, wherein said polymers have an average cationic charge density from about 0.05 to about 5 units per 100 daltons molecular weight at a pH of from about 4 to about 12.