George J Quarderer

20040094477, May 20, 2004

Sep 12, 2003

10/471875

Zenon Lysenko - Midland MI, US
Sanjeev Katti - Acton MA, US
Richard Stringfield - Midland MI, US
Thomas Gregory - Midland MI, US
George Quarderer - Midland MI, US

B01D011/04

210/634000, 210/663000, 210/774000, 514/012000

A solid bed adsorptive process for separating a seed oil into two substantially pure triglyceride functions. The process involves contacting a seed oil, such as castor oil, preferably as a concentrate, with an adsorbent in a bed, the adsorbent having a particle size greater than about 40 microns, and thereafter contacting the adsorbent with a desorbent material, preferably under minimal flow conditions, to obtain a raffinate output stream containing predominantly a second triglyceride and an extract output stream containing predominantly a first triglyceride. Purified fatty acid triglyceride esters obtainable from castor, vernonia, and lesquerella plant oils provide renewable, non-petroleum-based sources of chemical feedstocks.

53522729, Oct 4, 1994

Aug 13, 1992

7/930059

David J. Moll - Midland MI
Alan F. Burmester - Midland MI
Thomas C. Young - Walnut Creek CA
Kent B. McReynolds - Midland MI
James E. Clark - Midland MI
Charles Z. Hotz - Walnut Creek CA
Ritchie A. Wessling - Berkeley CA
George J. Quarderer - Midland MI
Ronald M. Lacher - Midland MI
Stephen E. Bales - Midland MI
Henry N. Beck - Walnut Creek CA
Thomas O. Jeanes - Antioch CA
Bethanne L. Smith - Freeland MI

The Dow Chemical Company - Midland MI

B01D 5322

96 9

This invention relates to a method of and apparatus for separating component gases in a gas mixture employing a glassy polymer membrane at temperatures of 5. degree. C. or less so as to achieve superior separation of gas components.

62622269, Jul 17, 2001

Apr 13, 2000

9/549323

Eugene R. Moore - Midland MI
George J. Quarderer - Midland MI
Clark J. Cummings - Midland MI
Danil Tirtowidjojo - Lake Jackson TX

The Dow Chemical Company - Midland MI

C08F 600

528480

The present invention is directed to a process for producing a high molecular weight condensation polymer by removing unwanted by-product(s) from a polycondensation equilibrium reaction mixture using a centrifugal force device equipped with a vacuum.

52943909, Mar 15, 1994

Dec 3, 1992

7/985078

Steven Rosenberg - Midland MI
George J. Quarderer - Midland MI
Ashish Sen - Midland MI
Masaru Nakagawa - Ohtsu City, JP
Timothy L. Faley - Midland MI
Myrna Serrano - Midland MI
Yoshihiko Teramoto - Ohtsu City, JP

The Dow Chemical Company - Midland MI

D01D 504
D01F 626
D02G 302

264103

Polybenzazole polymer dopes are spun through a spinneret having more than 2 per cm. sup. 2, of orifices in relatively close proximity. The dope filaments formed, then pass through an air gap which has a temperature of 50. degree. to 100. degree. C. and a gas flow sufficient to uniformly reduce the temperature of the dope filaments. The filaments cool in the air gap and are then coagulated.

40909433, May 23, 1978

Feb 28, 1977

5/772873

Norman G. Moll - Sanford MI
George J. Quarderer - Midland MI

The Dow Chemical Company - Midland MI

C10G 108

208 10

In the hydrogenation of coal slurried in recycle oil in the presence of a suspended hydrogenation catalyst, a substantial proportion of the catalyst can be recovered for recycle to the process by using a catalyst which is significantly more finely divided than the ash particles from the coal, subjecting the hydrogenated slurry to a gravity concentration process whereby the coarser, ash particles are selectively concentrated in a lower layer and a relatively larger proportion of the finer catalyst particles remain suspended in the supernatant oil, and recycling at least a part of the supernatant oil containing suspended catalyst to the coal hydrogenation process.

48516031, Jul 25, 1989

Oct 23, 1987

7/111895

George J. Quarderer - Midland MI
Fred C. Stone - Midland MI
Mark J. Beitz - Midland MI
Patrick M. O'Donnell - Midland MI

The Dow Chemical Company - Midland MI

C07C 1264

585410

Cyclobutarenes are prepared by pyrolyzing a suitable benzene, naphthalene, or pyridine derivative in the presence of an amount steam effective to substantially reduce the partial pressure of the pyrolyzing compound.

54866278, Jan 23, 1996

Dec 2, 1994

8/348639

George J. Quarderer - Midland MI
Curtis N. Swisher - Lake Jackson TX
David L. Trent - Lake Jackson TX

The Dow Chemical Company - Midland MI

C07D30126
C07D30304
C07D30308
C07D30314

549521

Described herein is a method for producing epoxides which is continuous, inhibits formation of chlorinated byproducts, and eliminates or substantially reduces waste water discharge. The method includes: (a) forming a low chlorides aqueous hypochlorous acid solution; (b) contacting the low chlorides aqueous hypochlorous acid solution with at least one unsaturated organic compound to form an aqueous organic product comprising at least olefin chlorohydrin; (c) contacting at least the olefin chlorohydrin with an aqueous alkali metal hydroxide to form an aqueous salt solution product containing at least epoxide; and (d) isolating the epoxide from the aqueous salt solution; wherein water is recovered from the product of at least Step (b) and recycled into Step (a) for use in forming the low chlorides aqueous hypochlorous acid solution. In this process, not only is the water internally recycled after Step (b), but a concentrated brine solution is generated in both Steps (a) and (d) which is useful in other processes such as electrochemical production of chlorine and caustic. The chlorine and caustic, in turn, may then be recycled back to the method of this invention.

41027752, Jul 25, 1978

Aug 15, 1977

5/824770

George J. Quarderer - Midland MI
Norman G. Moll - Sanford MI

The Dow Chemical Company - Midland MI

C10G 108

208 10

Solid, hydrocarbonaceous materials, such as coal, are converted to valuable liquid and gaseous products by an efficient process comprising: (1) preparing a slurry from slurry oil, a hydrogenation catalyst and the hydrocarbonaceous material; (2) hydrogenating the hydrocarbonaceous material to liquid and gaseous hydrogenation products, the liquid hydrogenation product containing suspended particles of ash and catalyst; (3) gravitationally separating the liquid hydrogenation product into a first stream and a second stream, the first stream having both a lower ash concentration than the liquid hydrogenation product and a greater catalyst:ash ratio than the second stream; (4) recycling at least a portion of the first stream for use as at least a portion of the slurry oil and thereby recycling at least a portion of the catalyst. This process is characterized by an economical, highly effective catalyst system, sequential gravitational and extractive solids separations for the generation and recycle of slurry oil, and low-ash fuel and chemical feedstock manufacture.