Philip H Harju from 143 Maple Dr, Spring Church, PA 15686, Phone: 724 478-1192

Preparation Of Naphthalene-Oxidation Catalyst By Impregnation Of Silica With Aqueous Solution Of Voc.sub.2 O.sub.4 -K.sub.2 So.sub.4 -Khso.sub.4
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US Patent:

44567634, Jun 26, 1984
Filed:

Mar 25, 1983
Appl. No.:

6/478739
Inventors:

Philip H. Harju - Spring Church PA
Eugene A. Pasek - Export PA
Assignee:

Koppers Company, Inc. - Pittsburgh PA
International Classification:

C07D30789
US Classification:

549249
Abstract:

Catalytic material is prepared by impregnating porous silica with an aqueous solution containing vanadyl oxalate (VOC. sub. 2 O. sub. 4), potassium sulfate (K. sub. 2 SO. sub. 4) and potassium bisulfate (KHSO. sub. 4). A free-flowing dry-appearing powder is provided comprising particles having substantially all compounds deposited from the impregnating solution attached to the silica particles within pores of the particles. Subsequent calcining of the powder provides a mixture of compounds within the particle pores containing at least one oxide of vanadium and at least one sulfate of potassium. Catalytic material prepared by the disclosed process is characterized in having a substantially uniform concentration of deposited compounds within the pores of the silica support. The catalytic material is particularly useful in a process for fluid bed oxidation of naphthalene to phthalic anhydride, in which oxidation process the catalyst provides high product yield at a low catalyst attrition rate.

Preparation Of Naphthalene-Oxidation Catalyst By Impregnation Of Silica With Aqueous Solution Of Voc.sub.2 O.sub.4 --K.sub.2 So.sub.4 --Khso.sub.4
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US Patent:

43893368, Jun 21, 1983
Filed:

Sep 17, 1981
Appl. No.:

6/303169
Inventors:

Philip H. Harju - Spring Church PA
Eugene A. Pasek - Export PA
Assignee:

Koppers Company, Inc. - Pittsburgh PA
International Classification:

B01J 2702
US Classification:

252440
Abstract:

Catalytic material is prepared by impregnating porous silica with an aqueous solution containing vanadyl oxalate (VOC. sub. 2 O. sub. 4), potassium sulfate (K. sub. 2 SO. sub. 4) and potassium bisulfate (KHSO. sub. 4). A free-flowing dry-appearing powder is provided comprising particles having substantially all compounds deposited from the impregnating solution attached to the silica particles within pores of the particles. Subsequent calcining of the powder provides a mixture of compounds within the particle pores containing at least one oxide of vanadium and at least one sulfate of potassium. Catalytic material prepared by the disclosed process is characterized in having a substantially uniform concentration of deposited compounds within the pores of the silica support. The catalytic material is particularly useful in a process for fluid bed oxidation of naphthalene to phthalic anhydride, in which oxidation process the catalyst provides high product yield at a low catalyst attrition rate.

Preparation Of Crystalline Tio.sub.2 As Anatase And/Or Rutile In Porous Carriers
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US Patent:

44826435, Nov 13, 1984
Filed:

Jul 26, 1982
Appl. No.:

6/401829
Inventors:

Philip H. Harju - Spring Church PA
Kenneth R. Call - Pittsburgh PA
Assignee:

Koppers Company, Inc. - Pittsburgh PA
International Classification:

B01J 2106
B01J 2108
US Classification:

502242
Abstract:

The invention discloses a method of impregnating a porous catalyst carrier with a partially hydrolyzed aqueous methanol solution of titanium tetrachloride, and completing the hydrolysis to titanium dioxide under controlled conditions of temperature and by-product removal to obtain the desired anatase, rutile or combination anatase/rutile polymorphic form of titanium dioxide.

Fluid-Bed Catalysts Process For Making Maleic Anhydride
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US Patent:

44607849, Jul 17, 1984
Filed:

Sep 7, 1982
Appl. No.:

6/415273
Inventors:

Philip H. Harju - Spring Church PA
Eugene A. Pasek - Export PA
Assignee:

Koppers Company, Inc. - Pittsburgh PA
International Classification:

C07D30760
US Classification:

549259
Abstract:

Catalytic material is provided by a composition comprising the elements vanadium, non-water-contained hydrogen, phosphorus and non-water-contained oxygen. Freshly prepared catalytic material proxides relatively high yields upon its initial use in the catalytic oxidation of hydrocarbon feedstocks, such as n-butane and benzene to maleic anhydride.

Vanadium-Hydrogen-Phosphorus-Oxygen Catalytic Material
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US Patent:

43747566, Feb 22, 1983
Filed:

Sep 9, 1981
Appl. No.:

6/300710
Inventors:

Philip H. Harju - Spring Church PA
Eugene A. Pasek - Export PA
Assignee:

Koppers Company, Inc. - Pittsburgh PA
International Classification:

B01J 2714
US Classification:

252435
Abstract:

Catalytic material is provided by a composition comprising the elements vanadium, non-water-contained hydrogen, phosphorus and non-water-contained oxygen. The VHPO elements are present in a relatively fixed atomic ratio range, there being more non-water-contained oxygen present than phosphorus by an atomic ratio of greater than five to one. The catalytic material comprises an anhydrous primary component having vanadium of mixed valence, hydrogen, phosphorus and oxygen in an empirical relationship defined by VH. sub. x PO. sub. y, wherein "x" has an average value in a range from about 1. 29 to about 1. 40, and "y" has an average value in a range from about 5. 46 to about 5. 55. The anhydrous VHPO catalytic material may also be described by a structural formula (VO). sub. m (VO. sub. 2). sub. n H. sub. 2n (PO. sub. 4). sub. n (P. sub. 2 O. sub. 7). sub. m/2, wherein m+n=3, "m" has an average value in a range from about 0. 90 to about 1.

Philip H Harju