Vera M Knowles from 46240 Monte Sereno Dr, Palm Desert, CA 92210, age 81, Phone: (510)5040407

Catalytic Decomposition Of Sodium Hypochlorite In Highly Alkaline Solutions
view source
US Patent:

47642866, Aug 16, 1988
Filed:

Jun 26, 1986
Appl. No.:

6/878733
Inventors:

Charles K. Bon - Concord CA
Vera M. Knowles - Martinez CA
Assignee:

The Dow Chemical Company - Midland MI
International Classification:

C02F 170
C02F 172
US Classification:

210757
Abstract:

The present invention relates to a method of catalytically decomposing sodium hypochlorite in an aqueous alkaline solution to oxygen and chloride ion. Specifically, the present invention discloses a method of decomposing aqueous hypochlorite into oxygen and chloride in a solution having a pH value greater than 13 using a solid catalyst comprising nickel oxide, cobalt oxide or mixtures thereof on an inorganic support selected from magnesium oxide or titanium oxide. The resulting sodium chloride solution may be recovered and used further.

Process For Silver Cathode Activation
view source
US Patent:

47552662, Jul 5, 1988
Filed:

Jul 11, 1986
Appl. No.:

6/884447
Inventors:

Charles K. Bon - Concord CA
Vera M. Knowles - Martinez CA
Assignee:

The Dow Chemical Company - Midland MI
International Classification:

C25F 100
US Classification:

2041415
Abstract:

Silver cathodes used in electrochemical synthesis are activated or reactivated after a period of use by immersion in a dilute alkaline aqueous solution of a compatible oxidizing agent. Thus, an expanded silver sheet cathode in an electrolytic cell used for the conversion of 3,4,5,6-tetrachloropicolinic acid to the herbicide 3,6-dichloropicolinic acid was reactivated by circulating an aqueous solution containing about 0. 5 percent sodium hypochlorite and about 2 percent sodium hydroxide through the cell.

Solvent Extraction Of Polychlorinated Organic Compounds From Porous Materials
view source
US Patent:

47584203, Jul 19, 1988
Filed:

Jul 14, 1986
Appl. No.:

6/885367
Inventors:

Vera M. Knowles - Martinez CA
Assignee:

The Dow Chemical Company - Midland MI
International Classification:

C01B 700
B09B 900
B09B 100
G21F 900
US Classification:

423659
Abstract:

The present invention relates to a process for the solvent extraction of polychlorinated organic compounds from porous materials. Specifically, the present invention describes a process for the use of a solvent extraction of polychlorinated organic compounds, such as hexachloroethane, hexachlorobutadiene and hexachlorobenzene from porous materials, such as a vinyl ester resin. When the level of hexachlorinated organic compounds is reduced to a level of 7 ppm or below, the porous material may be disposed of in an environmentally acceptable manner such as by incineration or by landfill.