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Maria M Ludvig, 661506 Loch Lake Dr, Taylor Lake Village, TX 77586

Known as:
Maria Margaret Ludvig Marc Ludvig Maria Ludwig
Related to:
Marc Robert Jackson 68

Maria Ludvig Phones & Addresses

1506 Loch Lake Dr, El Lago, TX 77586    281-5321626    832-3305149   

Austin, TX   

Pasadena, TX   

Portland, OR   

Houston, TX   

College Sta, TX   

1506 Loch Lake Dr, El Lago, TX 77586    281-5321626   

Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Emails

m***[email protected]
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Publications & IP owners

Us Patents

Preparation Of Mfi Type Crystalline Zeolitic Aluminosilicate

US Patent:
2003017, Sep 11, 2003
Filed:
Feb 19, 2003
Appl. No.:
10/370135
Inventors:
Maria Ludvig - Seabrook TX, US
International Classification:
C01B039/36
US Classification:
423/709000
Abstract:
A process for synthesizing a crystalline aluminosilicate zeolite having an MFI structure comprising crystallizing the zeolite from an alkaline aqueous reaction mixture that comprises SiOand AlOor their hydrated derivatives, and an amorphous aluminosilicate nucleating gel with an SiOAlOratio of from about 10 to less than 20. The reaction mixture does not contain an organic template.

Process For Obtaining Zeolites More Resistant To Hydrothermal Deactivation

US Patent:
2007017, Jul 26, 2007
Filed:
Nov 30, 2006
Appl. No.:
11/606358
Inventors:
Lam Lau - Rio de Janeiro, BR
Marlon Bezerra De Almeida - Rio de Janeiro, BR
Alexandre Costa - Rio de Janeiro, BR
Eliane Mattos - Rio de Janeiro, BR
Avelino Canos - Valence, ES
Maria Ludvig - Seabrook TX, US
Assignee:
PETROLEO BRASILEIRO S.A. - PETROBRAS - Rio de Janeiro
International Classification:
B01J 29/04
B01J 29/00
C01B 39/00
US Classification:
502060000, 423700000, 502077000
Abstract:
The present invention describes a process to obtain zeolites more resistant to calcination in the presence of water vapor at high temperatures, which is a characteristic condition found during the catalyst regeneration in the Fluid Catalytic Cracking (FCC). One apply the invention to high silica-alumina ratio (SAR) zeolites, for instance the ZSM-5 zeolite, which are able to crack only short hydrocarbon molecules, with normal or slightly branched carbon chain, and which are also able to increase considerably the yields of olefins and LPG. Through the combination of mild pre-calcination and phosphorous deposition one obtain a zeolite which presents higher catalytic activity than zeolites non treated or treated through other processes of the state-of-technique.

Additive-Containing Anionic Clays For Reducing Sox Emissions From An Fcc Regenerator And Process For Making Them

US Patent:
2010011, May 6, 2010
Filed:
Mar 20, 2008
Appl. No.:
12/532317
Inventors:
Elbert Arjan De Graaf - Amsterdam, NL
Jorge Alberto Conzalez - Houston TX, US
Julie Ann Francis - Houston TX, US
Maria Margaret Ludvig - Seabrook TX, US
Assignee:
Albemarle Netherlands B.V. - Amsterdam
International Classification:
B01J 21/16
B01D 53/50
US Classification:
42324301, 502 84, 502 73
Abstract:
A process is disclosed for the preparation of an additive-containing anionic clay generally comprising the steps of: a) milling a physical mixture of a divalent metal compound and a trivalent metal compound, b) calcining the milled physical mixture at a temperature in the range of about 200 to about 8000 C, and c) rehydrating the calcined mixture in aqueous suspension to form the additive-containing anionic clay, wherein an additive is optionally present in the physical mixture of step (a) and present in the aqueous suspension of step (c), and the additive is essentially free of vanadium.

Possible Relatives

Maria A Johnson  Maria Johnston  Maria Stanek  Maria B Stanford  Maria S White  Maria C Jones  Maria R Stanley  Maria L Stansell  Maria M Stanton  Maria T Staples 

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