Edward A Burt

US Patent:

46313494, 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

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.

US Patent:

6034024, Mar 7, 2000

Filed:

Apr 29, 1998

Appl. No.:

9/069462

Inventors:

Niomi L. Krzystowczyk - Orangeburg SC
Steven P. Diefenbach - Baton Rouge LA
Edward A. Burt - Lexington SC

Assignee:

Albemarle Corporation - Richmond VA

International Classification:

B01J 3100
B01J 3700
B01J 3739
C08F 402
C08F 460

US Classification:

502107

Abstract:

A process is described which comprises heating a methylalumoxane solution in an aromatic hydrocarbon solvent at a temperature of at least 35. degree. C. for at least 0. 5 hour in an inert, dry atmosphere such that the resulting heat-treated composition provides, in a supported metallocene catalyst produced using the heat-treated composition, increased activity as compared to the same supported metallocene catalyst produced in the same way except for using a portion of the methylalumoxane solution that has not been heat-treated. Before the heating the methylalumoxane of the solution contains from about 5 to about 35 mole percent unreacted trimethylaluminum, and was formed by partial hydrolysis of trimethylaluminum with free water in an organic solvent.

US Patent:

47146915, 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

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.

US Patent:

45608091, 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

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.

US Patent:

61004375, Aug 8, 2000

Filed:

Jul 10, 1998

Appl. No.:

9/113650

Inventors:

David J. Koehl - Orangeburg SC
Edward A. Burt - Lexington SC
Patrick T. Ward - Austin TX

Assignee:

Albemarle Corporation - Richmond VA

International Classification:

C07C 264
C07C 15067
C07C 266

US Classification:

585452

Abstract:

An alkylbenzene is alkylated with an alkene, in the presence of a sodium/potassium alloy catalyst, on a saturated carbon atom which is alpha to the ring at temperatures which are lower than the temperatures used in a current commercial process. In a pre-alkylation reaction, the catalyst is reacted with a compound which has a saturated carbon atom alpha to a double bond in order to form a catalytic species. Higher amounts of catalyst are used in the pre-alkylation reaction than in the analogous reaction of the current commercial process. Following alkylation, the phase which contains the alkylation product is separated from the phase which contains the catalytic species. The process produces less isomeric and other soluble byproducts, and enables the efficacious production of longer chain alkylbenzenes without the formation of insoluble tars characteristic of the current commercial process.

US Patent:

46281274, 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

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 --.