DR. SILAS WENDELL HOLMES, M.D.
Medical Practice at Richland Medical Park Dr, Columbia, SC
License number
South Carolina 16291
Category
Medical Practice
Type
Sports Medicine
Address
Address
2
14 Richland Medical Park Dr SUITE 200, Columbia, SC 29203
PO Box 848932, Boston, MA 02284
PO Box 848932, Boston, MA 02284
Phone
(803) 296-9200
(803) 296-9697 (Fax)
(803) 296-7303
(803) 296-7330 (Fax)
(803) 296-9697 (Fax)
(803) 296-7303
(803) 296-7330 (Fax)
Professional information
Heterogeneous Catalyst Process
US Patent:
4714691, Dec 22, 1987
Filed:
Aug 25, 1986
Appl. No.:
6/900304
Inventors:
Dixie E. Goins - Baton Rouge LA
Silas W. Holmes - Columbia SC
Edward A. Burt - Orangeburg SC
Silas W. Holmes - Columbia SC
Edward A. Burt - Orangeburg SC
Assignee:
Ethyl Corporation - Richmond VA
International Classification:
B01J 3106
US Classification:
502152
Abstract:
A process using heterogeneous resin-bonded aluminum phenoxide catalyst to alkylate phenols, the catalyst per se, and a process for making the catalyst. The inventive alkylation process uses ortho-tert-butylphenoxide bonded to a phenolformaldehyde condensation resin heterogeneous catalyst to prepare 2,6-di-tert-butylphenol from isobutylene and ortho-tert-butylphenol.
Heterogeneous Catalyst Process
US Patent:
4631349, Dec 23, 1986
Filed:
Jun 25, 1985
Appl. No.:
6/748733
Inventors:
Dixie E. Goins - Orangeburg SC
Silas W. Holmes - Columbia SC
Edward A. Burt - Orangeburg SC
Silas W. Holmes - Columbia SC
Edward A. Burt - Orangeburg SC
Assignee:
Ethyl Corporation - Richmond VA
International Classification:
C07C 3714
US Classification:
568789
Abstract:
A process using heterogeneous resin-bonded aluminum phenoxide catalyst to alkylate phenols, the catalyst per se, and a process for making the catalyst. The inventive alkylation process uses ortho-tert-butylphenoxide bonded to a phenolformaldehyde condensation resin heterogeneous catalyst to prepare 2,6-di-tert-butylphenol from isobutylene and ortho-tert-butylphenol.
Heterogeneous Catalytic Alkylation
US Patent:
4628127, Dec 9, 1986
Filed:
Jun 25, 1985
Appl. No.:
6/748744
Inventors:
Silas W. Holmes - Columbia SC
Edward A. Burt - Orangeburg SC
Dixie E. Goins - Orangeburg SC
Edward A. Burt - Orangeburg SC
Dixie E. Goins - Orangeburg SC
Assignee:
Ethyl Corporation - Richmond VA
International Classification:
C07C 3714, C07C 3906
US Classification:
568781
Abstract:
A process for producing 2,4-di-substituted phenols wherein an olefin is reacted with phenol in the presence of a heterogeneous catalyst comprising an aluminum phenoxide bonded to an acidic solid polymeric resin to preferably form 2,4-di-substituted phenol. A process for preparing a heterogeneous catalyst and a heterogeneous catalyst having the structure
(Resin --A--). sub. m Al(--OC. sub. 6 R. sub. 5). sub. n (11)
wherein Resin is a solid polymeric resin having acidic functional groups A, m is 1 or 2, n is 2 or 3 and the R are independently selected from H, alkyl, cycloalkyl, and aralkyl. Preferably, a styrene-divinylbenzene polymeric resin of a macroreticular structure is used for the alkylation process and A is --SO. sub. 3 --.
Alkylation Process
US Patent:
4560809, Dec 24, 1985
Filed:
Oct 9, 1984
Appl. No.:
6/658523
Inventors:
Dixie E. Goins - Orangeburg SC
Harold V. Huggins - Orangeburg SC
Edward A. Burt - Orangeburg SC
Silas W. Holmes - Columbia SC
Harold V. Huggins - Orangeburg SC
Edward A. Burt - Orangeburg SC
Silas W. Holmes - Columbia SC
Assignee:
Ethyl Corporation - Richmond VA
International Classification:
C07C 3711, C07C 3806
US Classification:
568789
Abstract:
A process for the production of a 2,6-dialkylphenol in high yield wherein the alkyl groups are secondary or tertiary with a reduced overall production of 4-alkylphenol by-products by the aluminum phenoxide catalyzed pressure reaction of isobutylene with phenol and a mixture of 2,4-dialkylphenol and 2,4,6-trialkylphenol which may be obtained, in a cyclic process, as a bottom stream from the distillation of the reaction mixture to obtain the 2,6-dialkylphenol product.