Richard J Hauser

US Patent:

59119225, Jun 15, 1999

Filed:

May 6, 1998

Appl. No.:

9/073789

Inventors:

Richard P. Hauser - Ravenna OH
Bruce C. Taylor - Kent OH
John Harris - Kent OH
Joe Schirra - Cuyahoga Falls OH

Assignee:

Norton Chemical Process Products Corporation - Stow OH

International Classification:

B01F 304

US Classification:

2611144

Abstract:

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 encounters the liquid flow essentially at right angles.

US Patent:

60895500, Jul 18, 2000

Filed:

Sep 22, 1998

Appl. No.:

9/158222

Inventors:

Frank J. Petschauer - Mayfield Heights OH
Richard P. Hauser - Ravenna OH
Frank Rukovena - Tallmadge OH

Assignee:

Norton Chemical Process Products Corporation - Stow OH

International Classification:

B01F 304

US Classification:

261113

Abstract:

A dual flow mass transfer process is provided which employs a dual flow mass transfer tray having perforations, at least some of which are provided with vapor flow deflectors to deflect the flow of vapor rising through the perforations to give the vapor flow an increased horizontal component.

US Patent:

57628343, Jun 9, 1998

Filed:

Feb 5, 1997

Appl. No.:

8/792348

Inventors:

Richard P. Hauser - Ravenna OH
Bruce C. Taylor - Kent OH
John Harris - Kent OH
Joe Schirra - Cuyahoga Falls OH

International Classification:

B01F 304

US Classification:

2611143

Abstract:

A mass transfer device is provided in the form of a tray having 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 encounters the liquid flow essentially at right angles.

US Patent:

58956352, Apr 20, 1999

Filed:

Oct 17, 1997

Appl. No.:

8/955559

Inventors:

James Frank Brazdil - Highland Heights OH
Kenneth Paul Keckler - Lima OH
Richard Paul Hauser - Ravenna OH

Assignee:

The Standard Oil Company - Cleveland OH

International Classification:

C01C 300
C07C25300

US Classification:

423238

Abstract:

A process for the recovery of unreacted ammonia from the reactor effluent obtained from a reaction zone used to produce acrylonitrile or methacrylonitrile comprising quenching the reactor effluent with an aqueous solution of ammonium phosphate wherein the ratio of ammonium ions to phosphate ions in the solution is between about 0. 7 to about 1. 3, preferably between about 0. 9 to 1. 2.

US Patent:

56184735, Apr 8, 1997

Filed:

Jul 29, 1996

Appl. No.:

8/681631

Inventors:

John R. Sauter - Stow OH
Richard P. Hauser - Ravenna OH
John Harris - Kent OH

Assignee:

Norton Chemical Process Products Corporation - Worcester MA

International Classification:

B01F 304

US Classification:

2611141

Abstract:

A fractionating column is provided which has perforated fractionating trays and downcomers allowing liquid to flow from one tray to the tray immediately below, said downcomers being provided with radial outflow ports directing downflowing liquids towards the column wall rather than onto the surface of the tray directly below the downcomer. This permits at least a portion of the under-downcomer area to be perforated thereby increasing the capacity of the tray for vapor/liquid contact and ensuring that weeping of the liquid through the perforations is avoided without need for an increase in vapor pressure.