Abstract: Disclosed herein are azeotrope or near-azeotrope compositions comprising 2,3,3,3-tetrafluoropropene (HFC-1234yf) and hydrogen fluoride (HF). These compositions are useful in processes to produce and purify HFC-1234yf. Additionally, disclosed herein are processes for the manufacture of HFC-1234yf.
Type:
Grant
Filed:
October 31, 2006
Date of Patent:
January 13, 2009
Assignee:
E.I. Du Pont De Nemours + Company
Inventors:
Ralph Newton Miller, Mario Joseph Nappa, Velliyur Nott Mallikarjuna Rao, Allen Capron Sievert
Abstract: A method of conducting a fantasy sports game is provided which includes increasing the points available for winning picks in later rounds and allowing participants to trade teams. The points awarded for picking the winning team may also be based on the Round of the tournament and the “seed” of the winning team. The number of trades available to participants may be decreased in later rounds, or discontinued in the final round. The game is also applicable to Internet based fantasy sports competitions.
Abstract: The invention provides process and apparatus for conducting an endothermic reaction of an organic compound in the presence of molecular hydrogen and of multicomponent solids. The process comprises contacting the compound with a solid catalyst for the endothermic reaction and a hydrogen oxidizing solid reagent intermixed with the solid catalyst. Organic products of the endothermic reaction are produced, with evolution of molecular hydrogen. The solid catalyst becomes gradually deactivated by formation of carbonaceous deposits thereon. The evolved hydrogen undergoes an exothermic reaction with the hydrogen oxidizing solid reagent to form a reduction product which comprises deactivated hydrogen oxidizing solid reagent.
Type:
Grant
Filed:
July 22, 1994
Date of Patent:
February 25, 2003
Assignee:
Sunoco, Inc. (R&M)
Inventors:
Thomas W. Bierl, Vincent A. Durante, Lawrence H. Finkel, Daniel E. Resasco