Chemical Process Engineering Consultant at Self-employed
Location:
Louisville, Kentucky Area
Industry:
Chemicals
Work:
Self-employed - Louisville, Kentucky Area since Feb 2013
Chemical Process Engineering Consultant
Dow Corning - Zhangjiangang, Jiangsu Province, PRC Apr 2010 - Feb 2013
Senior Process Technology Consultant:
Dow Corning - Carrollton, Kentucky, USA Jan 2008 - Mar 2010
Technology Manager
Dow Corning - Carrollton, Kentucky, USA and Shanghai, PRC Jan 2004 - Dec 2007
Project Manager
Dow Corning - July 1992 to December 1994 Jul 1992 - Dec 2004
Process Engineering Team Leader
Education:
University of Louisville 1981 - 1984
MBA, Business
University of Louisville 1978 - 1979
Masters, Chemical Engineering
University of Louisville 1974 - 1978
Bachelor of Science (B.S.), Chemical Engineering
Us Patents
Method For Controlling The Direct Process Product Distribution
Roland L. Halm - Midland MI Charles S. Kuivila - Crestwood KY Oliver K. Wilding - Lagrange KY
Assignee:
Dow Corning Corporation - Midland MI
International Classification:
C07F 716
US Classification:
556472
Abstract:
A method for controlling the direct process to vary the concentrations of trialkylhalosilanes and alkyltrihalosilanes in the product. The method comprises contacting an alkyl chloride with silicon metalloid in the presence of a catalytic amount of a catalyst comprising 0. 5 to 10 weight percent copper, 5 to 200 ppm tin, 25 to 2,500 ppm phosphorous, and greater than zero to less than 50 ppm zinc, where the concentration of each of the catalyst components is based on the weight of the silicon, at a temperature within a range of about 250. degree. C. to 400. degree. C. The present inventors have found that by controlling the zinc concentration the concentrations of trialkylhalosilanes and alkyltrihalosilanes in the product can be varied.
Roland L. Halm - Madison IN Oliver K. Wilding - Louisville KY Regie H. Zapp - Carrollton KY
Assignee:
Dow Corning Corporation - Midland MI
International Classification:
C07F 716 B01J 2372
US Classification:
556472
Abstract:
What is disclosed is a method of controlling a process for the preparation of alkylhalosilanes from silicon and alkylhalides where phosphorous or certain phosphorous compounds are used as promoters to enhance selectivity, overall yields of useable silanes and enhanced silicon metal conversion.
Method Of Direct Process Performance Improvement Via Control Of Silicon Manufacture
Roland L. Halm - Madison IN Oliver K. Wilding - Louisville KY
Assignee:
Dow Corning Corporation - Midland MI
International Classification:
C07F 716
US Classification:
556472
Abstract:
This invention discloses a method of treating silicon with non-volatile, phosphorous compounds to allow the silicon to be used in the direct process for the manufacture of alkylhalosilanes. The treatment of the silicon is carried out by feeding phosphorous compounds to the silicon during or after refining.
Michael Andrew McIntyre - Midland MI Oliver K. Wilding - Lagrange KY
Assignee:
Dow Corning Corporation - Midland MI
International Classification:
B01D 5304
US Classification:
95143
Abstract:
A process for purifying halosilanes consisting of contacting a mixture comprising a halosilane and a hydrocarbon with silica gel, thereby reducing the hydrocarbon content of the mixture. The present process is particularly useful for removing hydrocarbon contaminates from chlorosilanes, where the hydrocarbon contaminates have a boiling point similar to that of the chlorosilanes.
Method Of Direct Process Performance Improvement Via Control Of Silicon Manufacture
Roland L. Halm - Madison IN Oliver K. Wilding - Louisville KY
Assignee:
Dow Corning Corporation - Midland MI
International Classification:
C09K 300
US Classification:
25218235
Abstract:
This invention discloses a method of treating silicon with non-volatile, phosphorous compounds to allow the silicon to be used in the direct process for the manufacture of alkylhalosilanes. The treatment of the silicon is carried out by feeding phosphorous compounds to the silicon during or after refining.