Abstract:
Disclosed is the reaction of C₃ to C₄ paraffins with O₂ and NH₃ to make α,β-unsaturated nitriles and olefins, using certain complex metal oxide catalysts containing V, Sb, W and certain optional elements.
Abstract:
Ammoxidation of propane or isobutane with NH₃ and 0₂ using (1) a mole ratio of paraffin:NH₃ in the range from 2 to 16 and a mole ratio of paraffin:O₂ in the range 1 to 10 and (2) a mixture of particulate catalyst compositions, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated nitrile. Catalytic compositions useful in the process are disclosed.
Abstract:
A system to mitigate the effect of an environmental release of a contaminant gas. The system includes at least one first fluid effect device (13) positioned in the vicinity of the environmental release (33). A first fluid stream (20), a second fluid stream (23) and a flame (24) may each selectively be discharged from the first fluid device (13) in proximity to the contaminant gas. At least one second fluid effect device (25) also may be positioned in the vicinity of the environmental release (33) and the first fluid effect device (13). A third fluid stream (30) may be discharged from the second fluid device (25) proximate to the contaminant gas. A method to mitigate the effect of an environmental release of a contaminant gas employing the foregoing system is likewise embodied herein.
Abstract:
A process to produce products, in particular polysaccharides, from filamentous fungi, in an immobilized cell bioreactor wherein the fungus is fixed and adheres to the surface of a porous, non-particulate support and aqueous liquid medium is passed through the immobilized system and product containing medium is recycled or withdrawn from the system.
Abstract:
Disclosed is ammoxidation of C₃ to C₅ acyclic alkanes with NH₃ and O₂ using (1) a mole ratio of alkane:NH₃ in the range from 2 to 16 and a mole ratio of alkane:O₂ in the range 1 to 10 and (2) a mixture of particulate catalyst compositions, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated mononitrile. Catalyst compositions useful in the process are also disclosed.
Abstract:
Ammoxidation of C₃ to C₅ paraffins with NH₃ and O₂ using (1) a mole ratio of paraffin:NH₃ in the range from 2 to 16 and a mole ratio of alkane:O₂ in the range 1 to 10 and (2) a mixture of particulate catalyst compositions, the first being especially effective to promote formation of an unsaturated nitrile and an olefin from the paraffin, and the second catalyst composition being especially effective to promote the conversion of the olefin to the unsaturated nitrile. Catalytic compositions useful in the process are disclosed.