Ulrich Heubner, Michael Kohler, Manfred Rockel, Ernst Wallis: Corrosion resistant hot and cold forming parts of Ni-Cr-Mo alloy and method of making same. VDM Nickel Technologie Aktiengesellschaft, Herbert Dubno, March 6, 1990: US04906437 (26 worldwide citation)

For use in making components which are required to have a very high resistance to uniform corrosion and against pitting and crevice corrosion under very highly corrosive conditions encountered in up to date chemical process technology and environmental protection technology, for instance, in flue ga ...

Joseph C Gentry: Catalyst assembly and method for chemical process tower. Glitsch, Johnson & Wortley, February 14, 1995: US05389343 (25 worldwide citation)

Improved catalyst assemblies for vapor/liquid contact towers. Bundles of catalyst media used to promote chemical reactions are disposed substantially in the vapor phase of the tower, such as beneath trays therein for improving mass transfer efficiency. Unlike previous assemblies, wherein distillatio ...

Michael T Flavin, Lisa M Seaney: Use of automated technology in chemical process research and development. Advanced Life Sciences, McDonnell Boehnen Hulbert & Berghoff, March 28, 2000: US06044212 (25 worldwide citation)

A method and workstation for optimizing chemical processes based on combinatorial chemistry, automation technology, and computer-controlled design is disclosed. The workstation includes a synthesizer, an analyzer, a robot and computer in communication with the synthesizer and analyzer. The computer ...

Ronald E Myers: Electrically conductive pyrrole polymers. The B F Goodrich Company, Alfred D Lobo, Nestor W Shust, April 18, 1995: US05407699 (24 worldwide citation)

A process is provided for forming an electrically conductive polymer of a pyrrole monomer, optionally substituted at the 3- and 4- positions. The process comprises dispersing a polymerization initiator selected from the group consisting of anhydrous halides of iron, cobalt or nickel (Group VIII meta ...

Jeffrey J Spiegelman, Peter K Shogren: Method for recovery and reuse of gas. Aeronex, Brown Martin Haller & McClain, July 18, 2000: US06089282 (24 worldwide citation)

A gas recovery and reuse/recycle method is disclosed which can readily and economically recover valuable and/or environmentally hazardous gases from a manufacturing or chemical process and then return the gas to the process for reuse, and repeat this many times without significant contamination or d ...

Niels T Baden, Ernst J Jensen, Jorgen G Larsen: Method of carrying out heterogeneous catalytic chemical processes. Haldor Topsoe, Ostrolenk Faber Gerb & Soffen, January 15, 1991: US04985230 (24 worldwide citation)

A catalytic chemical process is carried out non-adiabatically using as a catalyst a body with two sets of channels throughout the body. One set of channels leads the process fluid towards one of two parallel walls of the catalyst chamber, the other set towards the outer wall, In slits between walls ...

Ruth D Kreichauf: Method of providing safe haven within buildings during chemical or biological attack. Honeywell International, John G Shudy Jr, August 6, 2002: US06428680 (24 worldwide citation)

A room in a building serving as a safe haven for human inhabitants against harmful agent attack such as chemical or biological weapon attack. The room provides an environment sealed from air-carried harmful agents wherein the sealing can be accomplished by blocking air ducts and air leakage around d ...

Jonathan P Earhart, John A Kostecki, Adrian C McNutt: Process for removing alkali metal aluminum silicate scale deposits from surfaces of chemical process equipment. Stauffer Chemical Company, Joel G Ackerman, December 15, 1987: US04713119 (23 worldwide citation)

Alkali metal aluminum silicate scale deposits are removed from surfaces of chemical processing equipment by alternating treatments with acidic and basic solutions, with optional rinsing of the equipment between treatments.

Frank E Lamb: Process for recovery of metal values from lead-zinc ores, even those having a high carbonate content. Duval Corporation, Millen & White, June 9, 1981: US04272341 (23 worldwide citation)

A chemical, electro-chemical process for recovering meta values from a zinc- or lead-containing material comprises:

Richard P Hauser, Bruce C Taylor, John Harris, Joe Schirra, Frank Rukovens: Mass transfer device. Norton Chemical Process Products Corporation, David Bennett, June 15, 1999: US05911922 (23 worldwide citation)

A mass transfer device is provided in the form of a tray having moveable valves which includes perforations spanned by bridge members shaped to divert liquid flowing in the design flow direction around the perforation such that gas rising through the perforation causes the valve to open and then enc ...