Manhua Lin, Age 35Norwich, CT
Manhua Lin Phones & Addresses
Norwich, CT
Mount Laurel, NJ
Plant City, FL
Westerly, RI
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Publications & IP owners
Us Patents
Process For Preparing A Catalyst
US Patent:
6514901, Feb 4, 2003
Filed:
Oct 22, 1999
Appl. No.:
09/425670
Inventors:
Manhua Lin - Maple Glen PA
Michael William Linsen - North Wales PA
Michael William Linsen - North Wales PA
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
B01J 2310
US Classification:
502304, 502305, 502308, 502309, 502311, 502312, 502313, 502314, 502316, 502319, 502320, 502321, 502322, 502324, 502325, 502326, 502327, 502332, 502336, 502338, 502349, 502350, 502351, 502353, 502354, 502355
Abstract:
A process for preparing a catalyst is disclosed. The catalyst is useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids.
Process For Preparing A Catalyst
US Patent:
6514903, Feb 4, 2003
Filed:
Oct 22, 1999
Appl. No.:
09/425671
Inventors:
Manhua Lin - Maple Glen PA
Michael William Linsen - North Wales PA
Michael William Linsen - North Wales PA
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
B01J 2310
US Classification:
502311, 502304, 502312, 502313, 502315, 502316, 502319, 502321, 502325, 502326, 502333, 502334, 502335, 502336, 502337, 502338, 502339, 502353, 502354, 502355, 502308, 502309, 502322, 502324, 502327, 502332, 502349, 502351, 502350
Abstract:
An improved catalyst including a compound of the formula (I) wherein 0. 25a0. 98, 0. 003m0. 5, 0. 003n0. 5, 0. 003x0. 5 and o is dependent on the oxidation state of the other elements, A is selected from the group consisting of Mo, W, Fe, Nb, Ta, Zr, Ru and mixtures thereof; M is selected from the group consisting of V, Ce, Cr and mixtures thereof; N is selected from the group consisting of Te, Bi, Sb, Se and mixtures thereof; and X is selected from the group consisting of Nb, Ta, W, Ti, Al, Zr, Cr, Mn Fe, Ru, Co, Rh, Ni, Pd, Pt, Sb, Bi, B, In, Ce and mixtures thereof; is prepared by the process comprising: (A) admixing metal compounds, at least one of which is an oxygen containing compound, and at least one solvent to form a solution; (B) removing the solvent from the solution to obtain a catalyst precursor; and (C) calcining the catlyst under an inert atmosphere, wherein the inert atmosphere is not flowing over the catalyst precursor, to form a catalyst including said compound of the formula (I).
Catalyst Useful For Oxidation Reactions
US Patent:
6653253, Nov 25, 2003
Filed:
Oct 2, 2000
Appl. No.:
09/677389
Inventors:
Manhua Lin - Maple Glen PA
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
B01J 3100
US Classification:
502113
Abstract:
A catalyst useful for oxidation reactions is disclosed. The catalyst is useful for the gas phase oxidation of alkanes, propylene, acrolein, or isopropanol to unsaturated aldehydes or carboxylic acids.
Process For Preparing A Catalyst And Catalytic Oxidation Therewith
US Patent:
6693059, Feb 17, 2004
Filed:
Jan 4, 2001
Appl. No.:
09/754942
Inventors:
Manhua Lin - Maple Glen PA
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
B01J 2316
US Classification:
502308, 502309, 502311, 502312, 502313, 502314, 502315, 502316, 502321, 502322, 502353
Abstract:
A process useful for the catalytic gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids uses catalysts of particular compositions formed in a particular manner.
Methods For Producing Unsaturated Carboxylic Acids And Unsaturated Nitriles
US Patent:
6710207, Mar 23, 2004
Filed:
Sep 25, 2001
Appl. No.:
09/962487
Inventors:
Scott Han - Lawrenceville NJ
Bradley Anson Jacobs - Chalfont PA
Frederick William Kaiser - Fort Washington PA
Peter David Klugherz - Huntingdon Valley PA
Manhua Lin - Levittown PA
Michael William Linsen - North Wales PA
Bradley Anson Jacobs - Chalfont PA
Frederick William Kaiser - Fort Washington PA
Peter David Klugherz - Huntingdon Valley PA
Manhua Lin - Levittown PA
Michael William Linsen - North Wales PA
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
C07C 5116
US Classification:
562549, 502312, 502311
Abstract:
Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitrites are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
Catalyst Useful For Oxidation Reactions
US Patent:
6812366, Nov 2, 2004
Filed:
Sep 2, 2003
Appl. No.:
10/653634
Inventors:
Manhua Lin - Maple Glen PA
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
C07C 4534
US Classification:
568470, 568476, 568477, 568478, 5625122, 562518, 562522
Abstract:
A catalyst useful for oxidation reactions is disclosed. The catalyst is useful for the gas phase oxidation of alkanes, propylene, acrolein, or isopropanol to unsaturated aldehydes or carboxylic acids.
Methods For Producing Unsaturated Carboxylic Acids And Unsaturated Nitriles
US Patent:
6989460, Jan 24, 2006
Filed:
Nov 25, 2003
Appl. No.:
10/722281
Inventors:
Scott Han - Lawrenceville NJ, US
Bradley Anson Jacobs - Chalfont PA, US
Frederick William Kaiser - Fort Washington PA, US
Peter David Klugherz - Huntingdon Valley PA, US
Manhua Lin - Levittown PA, US
Michael William Linsen - North Wales PA, US
Bradley Anson Jacobs - Chalfont PA, US
Frederick William Kaiser - Fort Washington PA, US
Peter David Klugherz - Huntingdon Valley PA, US
Manhua Lin - Levittown PA, US
Michael William Linsen - North Wales PA, US
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
C07C 253/24
US Classification:
558319, 502311, 502312
Abstract:
Unsaturated carboxylic acids are produced by the vapor phase catalytic oxidation of mixtures of alkenes and alkanes in the presence of a catalyst containing a mixed metal oxide. Similarly, unsaturated nitriles are produced by the vapor phase catalytic oxidation of alkenes or mixtures of alkenes and alkanes and ammonia in the presence of a catalyst containing a mixed metal oxide.
Recycle Process
US Patent:
7049466, May 23, 2006
Filed:
Sep 25, 2001
Appl. No.:
09/962998
Inventors:
Daniel A. Bors - Maple Glen PA, US
Fernando Antonio Pessoa Cavalcanti - Lafayette Hill PA, US
Scott Han - Lawrenceville NJ, US
Bradley Anson Jacobs - Chalfont PA, US
Frederick William Kaiser - Fort Washington PA, US
Peter David Klugherz - Huntingdon Valley PA, US
Manhua Lin - Maple Glen PA, US
Donald Lee Zolotorofe - Ivyland PA, US
Fernando Antonio Pessoa Cavalcanti - Lafayette Hill PA, US
Scott Han - Lawrenceville NJ, US
Bradley Anson Jacobs - Chalfont PA, US
Frederick William Kaiser - Fort Washington PA, US
Peter David Klugherz - Huntingdon Valley PA, US
Manhua Lin - Maple Glen PA, US
Donald Lee Zolotorofe - Ivyland PA, US
Assignee:
Rohm and Haas Company - Philadelphia PA
International Classification:
C07C 51/16
US Classification:
562549, 558319
Abstract:
A method for producing an unsaturated carboxylic acid comprises: (a) contacting, in a reaction zone, an alkane with a catalyst containing a mixed metal oxide, under conditions which produce a product gas comprising the unsaturated carboxylic acid, unreacted alkane and a product alkene; (b) recovering unreacted alkane and product alkene from the product gas; and (c) recycling the recovered unreacted alkane and product alkene to the reaction zone; wherein the mixed metal oxide consists of a material having the formulaAMNXOwherein A is at least one element selected from the group consisting of molybdenum and tungsten, wherein M is at least one element selected from the group consisting of vanadium, cerium and chromium, wherein N is at least one element selected from the group consisting of tellurium, bismuth and selenium, wherein X is at least one element selected from the group consisting of niobium, tantalum, titanium, aluminum, zirconium, chromium, manganese, iron, ruthenium, cobalt, rhodium, nickel, platinum, bismuth, boron, indium, arsenic, germanium, tin, lithium, sodium, potassium, rubidium, cesium, francium, beryllium, magnesium, calcium, strontium, barium, hafnium, lead, phosphorus, promethium, europium, gadolinium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, gold, silver, palladium, gallium, zinc, praseodymium, rhenium, iridium, neodymium, yttrium, samarium and terbium, wherein 0. 25
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