Mark A Silvano

Address:

344 Marienstein Rd, Uppr Blck Edy, PA 18972

VIN:

1G2MF35XX8Y126696

Make:

Pontiac

Model:

Solstice

Year:

2008

US Patent:

7754916, Jul 13, 2010

Filed:

Sep 9, 2008

Appl. No.:

12/283050

Inventors:

Mark Anthony Silvano - New Hope PA, US
Donald L. Zolotorofe - Ivyland PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C07B 35/06

US Classification:

562599

Abstract:

A process for converting a salt of a hydroxycarboxylic acid to an unsaturated carboxylic acid, or esters thereof. The process involves converting an ammonium salt of a hydroxycarboxylic acid in aqueous solution to a corresponding hydroxycarboxylic acid and ammonium cation in aqueous solution; and separating the ammonium cation from the aqueous solution, leaving the hydroxycarboxylic acid in aqueous solution. The converting and separating steps may be accomplished by employing a hydrophobic acid or an acid ion exchange resin, each of which must have an acid dissociation constant, i. e. , pK, at least 0. 5 less that that of the salt of the hydroxycarboxylic acid. Where a hydrophobic acid is used, it must be immiscible in water, and its salt must also be immiscible in water, and the resulting multi-phase solution comprises an aqueous phase comprising the corresponding hydroxycarboxylic acid, as well as a non-aqueous phase comprising a neutralized acid. Alternatively, where the ion exchange resin is used, the aqueous solution of the ammonium salt of a hydroxycarboxylic acid is contacted with the resin, thereby converting the salt to a hydroxycarboxylic acid and capturing the ammonium cations on the resin. In either case, the aqueous solution is treated, such as by heating, to separate and recover the hydroxycarboxylic acid.

US Patent:

7906699, Mar 15, 2011

Filed:

Aug 5, 2008

Appl. No.:

12/221591

Inventors:

Abraham Benderly - Elkins Park PA, US
Scott Han - Lawrenceville NJ, US
Mark Anthony Silvano - New Hope PA, US
Donald Lee Zolotorofe - Ivyland PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C07C 5/02

US Classification:

585654, 585661, 585656, 585659

Abstract:

A method for producing a mixture of ethylene and carbon monoxide by contacting ethane and an oxygen source at a temperature of at least 500 C. to produce ethylene and carbon monoxide. A method for producing an alkyl propionate by steps of: (a) contacting ethane and an oxygen source at a temperature of at least 500 C. to produce ethylene; (b) contacting an alcohol, ethylene and carbon monoxide with an ethylene carbonylation catalyst to produce the alkyl propionate; and (c) separating the alkyl propionate from byproducts and starting materials. The method further comprises condensing the alkyl propionate with formaldehyde to produce an alkyl methacrylate.

US Patent:

8049036, Nov 1, 2011

Filed:

Jan 18, 2008

Appl. No.:

12/009556

Inventors:

Abraham Benderly - Elkins Park PA, US
Anne Mae Gaffney - West Chester PA, US
Mark Anthony Silvano - New Hope PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

C07C 53/00

US Classification:

562512, 562409, 560129, 560205, 560211, 585324, 502117, 502300, 502311, 502328

Abstract:

Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared cumulatively from corresponding alkanes utilizing using a multi-staged catalyst system and a multi-stage process which comprises steam cracking of alkanes to corresponding alkenes at flame temperatures and at short contact times in combination with one or more oxidation catalysts for catalytically converting the corresponding alkenes to further corresponding oxygenated products using short contact time reactor conditions.

US Patent:

8198477, Jun 12, 2012

Filed:

Nov 20, 2009

Appl. No.:

12/592182

Inventors:

Mark Anthony Silvano - New Hope PA, US

International Classification:

C07C 51/16
C07C 45/00

US Classification:

562532, 568486

Abstract:

The present invention relates to a process for producing acrolein by liquid phase dehydration of glycerol by preparing a mixture of a catalyst suspended in an organic solvent comprising one or more vinyl polymers and glycerol; and then mixing and heating the mixture to between 150 C. and 350 C. to dehydrate the glycerol and form acrolein. The vinyl polymers are selected from the group consisting of polyolefins, polystyrene, and mixtures thereof. The polyolefins may be polyethylene, polypropylene, polybutylene, polyisobutylene, polyisoprene, polypentene, or mixtures thereof. The acrolein may be subjected to vapor phase oxidation in the presence of a catalyst, such as a mixed metal oxide, to produce acrylic acid.

US Patent:

7361622, Apr 22, 2008

Filed:

Nov 8, 2005

Appl. No.:

11/269434

Inventors:

Abraham Benderly - Elkins Park PA, US
Anne Mae Gaffney - West Chester PA, US
Mark Anthony Silvano - New Hope PA, US

Assignee:

Rohm and Haas Company - Philadelphia PA

International Classification:

B01J 31/00

US Classification:

502129, 5602411, 562542, 562543, 562544, 562545, 562546, 562547, 562548, 562549

Abstract:

Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared cumulatively from corresponding alkanes utilizing using a multi-staged catalyst system and a multi-stage process which comprises steam cracking of alkanes to corresponding alkenes at flame temperatures and at short contact times in combination with one or more oxidation catalysts for catalytically converting the corresponding alkenes to further corresponding oxygenated products using short contact time reactor conditions.

US Patent:

20050131255, Jun 16, 2005

Filed:

Nov 12, 2004

Appl. No.:

10/987367

Inventors:

Abraham Benderly - Elkins Park PA, US
Nitin Chadda - Radnor PA, US
Anne Gaffney - West Chester PA, US
Scott Han - Lawrenceville NJ, US
Dominique Le - Upper Darby PA, US
Mark Silvano - New Hope PA, US

International Classification:

B01J023/38
B01J027/14
C07C005/327
C07C051/16

US Classification:

562546000, 502311000, 502334000, 502208000, 585616000, 585621000, 585627000

Abstract:

Alkenes, unsaturated saturated carboxylic acids, saturated carboxylic acids and their higher analogues are prepared directly from corresponding alkanes utilizing using a mixed bed catalyst at flame temperatures in a short contact time reactor.

US Patent:

20050137415, Jun 23, 2005

Filed:

Nov 19, 2004

Appl. No.:

10/993729

Inventors:

Leonard Bogan - Hatfield PA, US
Fernando Cavalcanti - Lafayette Hill PA, US
Nitin Chadda - Radnor PA, US
Sanjay Chaturvedi - Lansdale PA, US
Anne Gaffney - West Chester PA, US
Scott Han - Lawrenceville NJ, US
Peter Klugherz - Huntingdon Valley PA, US
Daniel Martenak - Perkasie PA, US
Mark Silvano - New Hope PA, US
Elsie Vickery - Jenkintown PA, US
Donald Zolotorofe - Ivyland PA, US

International Classification:

C07C253/26
C07C051/16

US Classification:

558320000, 562545000

Abstract:

An improved process for the production of unsaturated carboxylic acids and unsaturated nitrites from their corresponding Cto Calkanes, or mixtures of Cto Calkanes and alkenes, that involves a multi-stage reaction system which employs both separation of the oxidation product from one or more intermediate effluent streams, as well as feeding additional oxygen to reaction zones subsequent to the first reaction zone.

US Patent:

20210403404, Dec 30, 2021

Filed:

May 24, 2018

Appl. No.:

16/613942

Inventors:

- Collegeville PA, US
Sarah L. Hruby - Kristianstad, SE
Minh N. Ngo - Philadelphia PA, US
Muhunthan Sathiosatham - Chalfont PA, US
Mark A. Silvano - Upper Black Eddy PA, US

International Classification:

C07C 45/75
C07C 45/82

Abstract:

Provided is a process for preparing dry methacrolein which maximizes capture of methanol. Also provided is a process for producing methyl methacrylate.