Ralph E Turner

US Patent:

45938601, Jun 10, 1986

Filed:

Nov 2, 1984

Appl. No.:

6/667400

Inventors:

Jerry A. Cook - Cartersville GA
Robert H. Garner - Sandersville GA
Ralph E. Turner - Tennille GA
Bomi M. Bilimoria - Tennille GA

Assignee:

Anglo American Clays Corporation - Atlanta GA

International Classification:

B02C 2100

US Classification:

241 23

Abstract:

A method for increasing the bulk density and decreasing the time of wetting with water of a substantially anhydrous kaolin clay powder, comprising dry ball-milling said powder using work inputs of from about 5 to about 40 HP-hrs/ton of dry clay. The milling may be effected by grinding the clay with ceramic balls of less than 5 inches diameter. The process enables improved handling characteristics for the treated clay with respect to bulk material handling systems.

US Patent:

44683170, Aug 28, 1984

Filed:

Apr 26, 1982

Appl. No.:

6/372188

Inventors:

Ralph E. Turner - Tennille GA

Assignee:

Anglo-American Clays Corporation - Sandersville GA

International Classification:

B03B 100

US Classification:

209 5

Abstract:

A method for continuously processing a kaolin clay which has relatively poor high-shear viscosity when prepared as a high-solids suspension, so as to obtain therefrom a fraction having a value of high-shear viscosity in high-solids suspension which is low relative to the starting clay, thereby being desirable for use in coating of paper. The method comprises the steps of forming the kaolin clay into a dilute aqueous suspension having from 10% to 20% solids by weight and forming said suspension into a continuous flow stream; mixing the stream of flowing suspension at a given point with from about 0. 001% to 0. 1% by weight of dry clay, of a high molecular weight anionic polyacrylamide polymer or derivative thereof, to selectively flocculate aggregates of minute kaolin platelets; and continuously separating the treated suspension downstream of the mixing point, into a sedimented phase containing a clay fraction of relatively high high-shear viscosity characteristics and a supernatant phase which is substantially free of aggregates and which contains in suspension as product, a fraction of the clay possessing relatively low high-shear viscosity properties.

US Patent:

48306738, May 16, 1989

Filed:

Oct 3, 1986

Appl. No.:

6/915091

Inventors:

Philip E. Jones - Sandersville GA
Ralph E. Turner - Tennille GA

Assignee:

E.C.C. America Inc. - Atlanta GA

International Classification:

C04B 1410

US Classification:

106487

Abstract:

A method is provided for reducing the abrasiveness of calcined clay, e. g. kaolin clay. The method comprises contacting the clay prior to calcination with an aliphatic diol, preferably ethylene glycol, in an amount sufficient to reduce the abrasiveness of the calcined product.

US Patent:

51375745, Aug 11, 1992

Filed:

Nov 30, 1990

Appl. No.:

7/621525

Inventors:

Paul Suitch - Milledgeville GA
Ralph E. Turner - Tennille GA
Dona L. Archer - Sandersville GA
William B. Smith - Sandersville GA

Assignee:

ECC America Inc. - Atlanta GA

International Classification:

C04B 3300
C09C 136

US Classification:

106439

Abstract:

A method of producing a high opacifying kaolin pigment by separating from one or more iron-stained titania-containing crude kaolins having a titania content of from about 1 to 2 weight percent, one or more titania-enriched kaolin fractions which contain the titania in an amount of above 2 weight percent; subjecting the fraction(s) to media grinding; dewatering and drying the media ground fraction(s); blending the fraction(s) with a fine particle size unground kaolin having a titania content less than 2%, in proportions to provide a calciner feed having at least 2% titania; and calcining the feed at a temperature in the range of 1500. degree. to 2200. degree. F.

US Patent:

43349854, Jun 15, 1982

Filed:

Dec 15, 1980

Appl. No.:

6/216652

Inventors:

Ralph E. Turner - Tennille GA

Assignee:

Anglo-American Clays Corporation - Sandersville GA

International Classification:

B03B 100

US Classification:

209 5

Abstract:

A method is disclosed for beneficiating a kaolin clay pigment to improve the rheological properties of a high solids suspension subsequently formed therefrom. According to the method, a 10 to 20% solids aqueous suspension of a kaolin clay is subjected to a selective rheological separation, by mixing the suspension with from about 0. 001% to 0. 1% by weight of dry clay, of a high molecular weight anionic polymer, and allowing the thereby treated suspension to separate into a sedimented phase, and a supernatant phase which is substantially free of aggregates; and separating the supernatant phase containing the beneficiated kaolin pigment in suspension. The suspended product of the process can then be conventionally processed, as by reductive bleaching, floccing, filtering, washing, dispersing, and drying.

US Patent:

50473751, Sep 10, 1991

Filed:

Dec 22, 1988

Appl. No.:

7/288681

Inventors:

Weyman Dunaway - Sandersville GA
Ralph E. Turner - Tennille GA

Assignee:

ECC America Inc. - Atlanta GA

International Classification:

C04B 3300
C09C 136

US Classification:

106439

Abstract:

A method of producing a high opacity paper filler pigment which comprises subjecting an iron-stained titania-containing kaolin to beneficiation by froth flotation or high intensity magnetic separation; recovering the froth or magnet rejects, dewatering and drying the rejects to produce a kaolin enriched in titania, and calcining the same at a temperature in the range of about 1500. degree. to about 2200. degree. F.

US Patent:

46934278, Sep 15, 1987

Filed:

Dec 30, 1985

Appl. No.:

6/814644

Inventors:

Bomi M. Bilimoria - Tennille GA
Herbert I. Lewis - Wrens GA
Jerry A. Cook - Cartersville GA
Ralph E. Turner - Tennille GA
Robert H. Garner - Sandersville GA

Assignee:

E.C.C. America Inc. - Atlanta GA

International Classification:

B02C 2100

US Classification:

241 23

Abstract:

A method for increasing the bulk density and decreasing the time of wetting with water of a substantially anhydrous kaolin clay powder, comprising dry milling said powder in a media mill wherein the media is at least +5 mesh, and using work inputs of from about 5 to about 40 HP-hrs/ton of dry clay. The process enables improved handling characteristics for the treated clay with respect to bulk material handling systems.

US Patent:

45615977, Dec 31, 1985

Filed:

Oct 15, 1984

Appl. No.:

6/661266

Inventors:

Jerry A. Cook - Tennille GA
Robert H. Garner - Sandersville GA
Ralph E. Turner - Tennille GA
Bomi M. Bilimoria - Tennille GA

Assignee:

Anglo-American Clays Corp. - Atlanta GA

International Classification:

B02C 1704
B02C 1912

US Classification:

241 17

Abstract:

A method for increasing the bulk density and decreasing the time of wetting with water of a substantially anhydrous kaolin clay powder, comprising dry ball-milling the said powder using work inputs of from about 5 to about 40 HP-hrs/ton of dry clay, followed by pulverization in a high energy impact mill and classification to eliminate undesirable larger particles. The ball-milling may be effected by grinding the clay with ceramic balls of less than 5 inches diameter. The process enables improved handling characteristics for the treated clay with respect to bulk material handling systems.