Richard M Porcelli

US Patent:

42527414, Feb 24, 1981

Filed:

Oct 6, 1978

Appl. No.:

5/949344

Inventors:

Richard V. Porcelli - Yonkers NY
Vijay S. Bhise - New York NY
Arnold J. Shapiro - New York NY

Assignee:

Halcon Research & Development Corp. - New York NY

International Classification:

C07C 5156

US Classification:

260549

Abstract:

In the carbonylation of alkyl esters in the presence of a Group VIII noble metal catalyst to produce a reaction mixture comprising volatile components and the non-volatile Group VIII noble metal catalyst, and the volatile components are separated from the catalyst, catalyst activity is maintained by providing a partial pressure of hydrogen of at least 10 psi during the separation of the volatile products. A partial pressure of at least 15 psi of carbon monoxide is also preferably provided, particularly when a metal promoter for the Group VIII noble metal catalyst is present, during such separation.

US Patent:

43026117, Nov 24, 1981

Filed:

Sep 16, 1980

Appl. No.:

6/187691

Inventors:

Richard V. Porcelli - Yonkers NY

Assignee:

Halcon Research & Development Corp. - New York NY

International Classification:

C07C 4706
C07C 4549

US Classification:

568484

Abstract:

Acetaldehyde is prepared by reacting methyl acetate and/or dimethyl ether with carbon monoxide and hydrogen in the presence of a palladium catalyst and an iodine moiety in a reaction zone wherein the reaction mixture is in a continuous boiling state.

US Patent:

42385512, Dec 9, 1980

Filed:

Mar 5, 1979

Appl. No.:

6/017756

Inventors:

Sudarshan Lal - Glen Rock NJ
Richard V. Porcelli - Yonkers NY

Assignee:

Halcon Research & Development Corporation - New York NY

International Classification:

B32B 1500

US Classification:

428660

Abstract:

A process is provided for inhibiting the rate of corrosion of titanium metal surfaces from attack by strong acid media in which at least a portion of the titanium metal surface is coated with rhodium metal to provide a treated metal surface which is substantially impervious to corrosion by strong acid media. The article so prepared appears to be uniquely impervious to corrosion by strong acid media and is also claimed herein.

US Patent:

43584110, Nov 9, 1982

Filed:

Jun 29, 1979

Appl. No.:

6/053610

Inventors:

Richard V. Porcelli - Yonkers NY
Vijay S. Bhise - New York NY

Assignee:

The Halcon SD Group, Inc. - New York NY

International Classification:

C07C 5112

US Classification:

260546

Abstract:

Carbonylation products such as alkanoic anhydrides, e. g. , acetic anhydrides, are produced by carbonylation of esters and/or ethers in the presence of a rhodium or iridium catalyst and an iodine moiety in a reaction zone wherein the reaction mixture is in a continuous boiling state.

US Patent:

44762372, Oct 9, 1984

Filed:

May 28, 1981

Appl. No.:

6/267960

Inventors:

Richard V. Porcelli - Yonkers NY

Assignee:

The Halcon SD Group, Inc. - New York NY

International Classification:

B01J 2732
B01J 2396
C07C 5156
C07C 6737

US Classification:

502 31

Abstract:

Tarry residues often are formed in carbonylation reactions, such as those in which esters or ethers are carbonylated to produce ethylidene diacetate or carboxylic acid anhydrides, such as acetic anhydride. Such residues contain Group VIII noble metal catalysts, typically rhodium, which must be separated before the residues can be disposed of. In the process of the invention, a portion of the carbonylation reaction mixture is flashed to a lower pressure and the resulting residues-containing liquid is extracted with solvents which preferentially remove the tars. The tars are separated from the solvents and disposed of while the solvents are recycled for further use. The catalyst-containing liquid is processed to remove residual solvent and returned to the carbonylation reaction.

US Patent:

43303765, May 18, 1982

Filed:

Jul 17, 1980

Appl. No.:

6/169534

Inventors:

Sudarshan Lal - Glen Rock NJ
Richard V. Porcelli - Yonkers NY

Assignee:

Atlantic Richfield Company - Los Angeles CA

International Classification:

C25D 350
C23F 1300

US Classification:

204 47

Abstract:

A process is provided for inhibiting the rate of corrosion of titanium metal surfaces from attack by strong acid media in which at least a portion of the titanium metal surface is coated with rhodium metal to provide a treated metal surface which is substantially impervious to corrosion by strong acid media. The article so prepared appears to be uniquely impervious to corrosion by strong acid media and is also claimed herein.