Raymond G Anderson

US Patent:

43648177, Dec 21, 1982

Filed:

Mar 4, 1981

Appl. No.:

6/237762

Inventors:

Raymond P. Anderson - Overland Park KS
David K. Schmalzer - Englewood CO
Charles H. Wright - Overland Park KS

Assignee:

The Pittsburg & Midway Coal Mining Co. - Englewood CO

International Classification:

C10G 100
C10G 106

US Classification:

208 8LE

Abstract:

The relative ratio of heavy distillate to light distillate produced in a coal liquefaction process is continuously controlled by automatically and continuously controlling the ratio of heavy distillate to light distillate in a liquid solvent used to form the feed slurry to the coal liquefaction zone, and varying the weight ratio of heavy distillate to light distillate in the liquid solvent inversely with respect to the desired weight ratio of heavy distillate to light distillate in the distillate fuel oil product. The concentration of light distillate and heavy distillate in the liquid solvent is controlled by recycling predetermined amounts of light distillate and heavy distillate for admixture with feed coal to the process in accordance with the foregoing relationships.

US Patent:

39845141, Oct 5, 1976

Filed:

Jan 24, 1972

Appl. No.:

5/220482

Inventors:

Raymond Paul Anderson - Overland Park KS
Francis Ross Galiano - Overland Park KS

Assignee:

Gulf Research & Development Company - Pittsburgh PA

International Classification:

B29H 718

US Classification:

264147

Abstract:

A process is disclosed for producing extremely fine polyamide/polystyrene fibers which include the steps of forming a molten blend consisting of from about 35 weight percent up to about 45 weight percent of a polyamide, preferably polycaprolactam and, correspondingly, from about 65 weight percent down to about 55 weight percent of a polystyrene, forcing this molten blend through an extrusion die to form a structure such as a strand, monofilament, sheet or film, melt drawing the extruded structure at a draw ratio of at least 4:1 to orient the same and thereby obtain a fibrillatable structure, and thereafter mechanically fibrillating the oriented, fibrillatable structure by cold drawing whereby the structure spontaneously and completely breaks up into extremely fine polyamide/polystyrene fibers. The blend may optionally additionally contain up to about 15 weight percent of an ethylene/acrylic acid copolymer containing about 20 weight percent acrylic acid.

US Patent:

43280889, May 4, 1982

Filed:

Sep 9, 1980

Appl. No.:

6/182698

Inventors:

Raymond P. Anderson - Overland Park KS
David K. Schmalzer - Englewood CO
Charles H. Wright - Overland Park KS

Assignee:

The Pittsburg & Midway Coal Mining Co. - Englewood CO

International Classification:

C10G 100
C10G 106

US Classification:

208 8LE

Abstract:

Normally solid dissolved coal product and a distillate liquid product are produced by continuously passing a feed slurry comprising raw feed coal and a recycle solvent oil and/or slurry together with hydrogen to a preheating-reaction zone (26, alone, or 26 together with 42), the hydrogen pressure in the preheating-reaction zone being at least 1500 psig (105 kg/cm. sup. 2), reacting the slurry in the preheating-reaction zone (26, or 26 with 42) at a temperature in the range of between about 455. degree. and about 500. degree. C. to dissolve the coal to form normally liquid coal and normally solid dissolved coal. A total slurry residence time is maintained in the reaction zone ranging from a finite value from about 0 to about 0. 2 hour, and reaction effluent is continuously and directly contacted with a quenching fluid (40, 68) to substantially immediately reduce the temperature of the reaction effluent to below 425. degree. C. to substantially inhibit polymerization so that the yield of insoluble organic matter comprises less than 9 weight percent of said feed coal on a moisture-free basis.

US Patent:

43303889, May 18, 1982

Filed:

Sep 9, 1980

Appl. No.:

6/182697

Inventors:

Raymond P. Anderson - Overland Park KS
David K. Schmalzer - Englewood CO
Charles H. Wright - Overland Park KS

Assignee:

The Pittsburg & Midway Coal Mining Co. - Englewood CO

International Classification:

C10G 100
C10G 106

US Classification:

208 8LE

Abstract:

Normally solid dissolved coal product and a distillate liquid product are produced by continuously passing a feed slurry comprising raw feed coal and a recycle solvent oil and/or slurry together with hydrogen to a preheating-reaction zone (26, alone, or 26 together with 42), the hydrogen pressure in the preheating-reaction zone being at least 1500 psig (105 kg/cm. sup. 2), reacting the slurry in the preheating-reaction zone (26, or 26 with 42) at a temperature in the range of between about 455. degree. and about 500. degree. C. to dissolve the coal to form normally liquid coal and normally solid dissolved coal. A total slurry residence time is maintained in the reaction zone ranging from a finite value from about 0 to about 0. 2 hour, and reaction effluent is continuously and directly contacted with a quenching fluid (40, 68) to substantially immediately reduce the temperature of the reaction effluent to below 425. degree. C. to substantially inhibit polymerization so that the yield of insoluble organic matter comprises less than 9 weight percent of said feed coal on a moisture-free basis.