Frederic E Budde

US Patent:

20060025627, Feb 2, 2006

Filed:

Jul 28, 2004

Appl. No.:

10/900209

Inventors:

Mark Vineyard - Houston TX, US
Robert Moison - Apple Valley MN, US
Frederic Budde - Eagan MN, US
John Walton - Colfax CA, US

Assignee:

Peragen Systems, Inc. - Eagan MN

International Classification:

C07C 409/24

US Classification:

562006000

Abstract:

Peracetic acid in aqueous liquid solution or vapor phase is prepared on-site and on-demand in a continuous process. Peracetic acid can be produced at a controlled rate to meet the demands of a downstream operation. In one embodiment, a pipe-line reactor and distillation column is used for the production of peracetic acid. In another embodiment, an apparatus includes a continuous pot reactor and distillation column for producing peracetic acid. The present invention has the potential of providing a much safer source of aqueous peracetic acid than currently available processes, due in part to the limited inventories of reactants in the reactor, particularly those in the vapor phase.

US Patent:

20060173209, Aug 3, 2006

Filed:

Mar 14, 2006

Appl. No.:

11/276775

Inventors:

Mark Vineyard - Houston TX, US
Robert Moison - Apple Valley MN, US
Frederic Budde - Eagan MN, US
John Walton - Colfax CA, US

Assignee:

PERAGEN SYSTEMS INC. - Eagan MN

International Classification:

C07C 409/24
C11D 3/39

US Classification:

562006000, 252186260

Abstract:

Peracetic acid is prepared on-site and on-demand in a continuous process and at a controlled rate to meet the demand of a downstream operation. In one aspect, a continuous tank reactor is used to produce quantities of peracetic acid at a controlled rate in liquid or vapor form. In another aspect, the use of super acid catalysts enhances the production of peracetic acid under milder conditions, for example, than those typically encountered when using sulfuric acid catalysts alone.

US Patent:

20100176066, Jul 15, 2010

Filed:

Dec 9, 2009

Appl. No.:

12/634003

Inventors:

Frederic E. Budde - Eagan MN, US
Mark K. Vineyard - Houston TX, US

Assignee:

PERAGEN SYSTEMS INC. - Eagan MN

International Classification:

C02F 9/12

US Classification:

2107481

Abstract:

A method of disinfecting municipal wastewaters comprises contacting the wastewater with a peracetic acid solution containing a relatively low amount of hydrogen peroxide in the presence of ultraviolet irradiation. In another aspect, a source of UV irradiation is selected to emit energy at one or more wavelengths at which PAA absorption is optimized or economized. The enhanced UV-PAA process may be used in a variety of other disinfection and organic destruction processes.