公开(公告)号：US3488147A

公开(公告)日：1970-01-06

申请号：US3488147D

申请日：1965-06-01

Applicant: ENGELHARD IND INC

Inventor： KEITH CARL D ,  CORNELY KURT W

IPC: C01F7/42 ,  C01F7/34

CPC classification number: C01F7/428 ,  C01P2004/61

公开(公告)号：US3420784A

公开(公告)日：1969-01-07

申请号：US3420784D

申请日：1966-01-13

Applicant: ENGELHARD IND INC

Inventor： KEITH CARL D ,  HINDIN SAUL G ,  GALEN LUDWIG A

IPC: B01J23/66 ,  B01J11/00

CPC classification number: B01J23/66

公开(公告)号：US3361682A

公开(公告)日：1968-01-02

申请号：US46339365

申请日：1965-06-11

Applicant: ENGELHARD IND INC

Inventor： KEITH CARL D ,  KENAH PAULA M ,  GEORGE SOUSTRUZNIK

IPC: C10G45/04 ,  B01J21/04 ,  B01J23/84 ,  B01J23/85 ,  B01J35/02 ,  B01J35/10 ,  B01J37/00

CPC classification number: B01J21/04 ,  B01J23/84 ,  B01J23/85 ,  B01J35/023 ,  B01J35/1066 ,  B01J35/108 ,  B01J37/0009

公开(公告)号：US3223556A

公开(公告)日：1965-12-14

申请号：US10368761

申请日：1961-04-13

Applicant: ENGELHARD IND INC

Inventor： COHN JOHANN G E ,  HAUEL ANNA P ,  KEITH CARL D

IPC: H01M4/86 ,  H01M4/92 ,  H01M8/08

CPC classification number: H01M4/925 ,  H01M4/92 ,  H01M4/926 ,  H01M8/08 ,  H01M2004/8689 ,  H01M2300/0005 ,  H01M2300/0008 ,  H01M2300/0011 ,  H01M2300/0014

公开(公告)号：US3138560A

公开(公告)日：1964-06-23

申请号：US86007959

申请日：1959-12-17

Applicant: ENGELHARD IND INC

Inventor： KEITH CARL D ,  BAIR DANIEL L

IPC: B01J21/18 ,  B01J23/40 ,  B01J23/44

CPC classification number: B01J23/44 ,  B01J21/18 ,  B01J23/40

公开(公告)号：US2944096A

公开(公告)日：1960-07-05

申请号：US61692056

申请日：1956-10-19

Applicant: ENGELHARD IND INC

Inventor： YOUNG TETER RUTH ,  GRING JOHN L ,  KEITH CARL D

IPC: B01J23/40 ,  B01J23/42 ,  B01J37/02 ,  B01J37/03 ,  C07C5/27

CPC classification number: B01J23/40 ,  B01J23/42 ,  B01J37/02 ,  B01J37/03 ,  C07C5/2791 ,  C07C9/00

公开(公告)号：US2885369A

公开(公告)日：1959-05-05

申请号：US29990852

申请日：1952-07-19

Applicant: ENGELHARD IND INC

Inventor： TETER JOHN W ,  KEITH CARL D

IPC: B01J23/40 ,  B01J23/42 ,  B01J37/02 ,  B01J37/03

CPC classification number: B01J23/42 ,  B01J23/40 ,  B01J37/02 ,  B01J37/03

公开(公告)号：US2838445A

公开(公告)日：1958-06-10

申请号：US58125056

申请日：1956-04-27

Applicant: ENGELHARD IND INC

Inventor： YOUNG TETER RUTH ,  KEITH CARL D ,  GRING JOHN L

IPC: B01J21/04 ,  B01J23/40 ,  B01J23/42 ,  C10G35/09

CPC classification number: C10G35/09 ,  B01J21/04 ,  B01J23/40 ,  B01J23/42 ,  B01J2229/36

公开(公告)号：US3558508A

公开(公告)日：1971-01-26

申请号：US3558508D

申请日：1969-02-04

Applicant: ENGELHARD IND INC

Inventor： KEITH CARL D ,  CORNELY KURT W

IPC: B01J2/08 ,  B01J20/08 ,  B01J21/04 ,  C01F7/02 ,  C01F7/42 ,  B01J13/00 ,  B01J11/06 ,  B01J11/44

CPC classification number: C01F7/02 ,  B01J2/08 ,  B01J20/08 ,  B01J21/04 ,  C01F7/428 ,  C01P2002/02 ,  C01P2002/60 ,  C01P2004/32 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/10 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/21

Abstract: SPHERICAL ALUMINUM OXIDE GELS ARE MADE BY FEEDING DROPS OF A COAGULABLE AQUEOUS SLURRY OF HYDROUS ALUMINA INTO A COLUMN OF A WATER-IMMISCIBLE LIQUID, E.G., MINERAL OIL, WHICH CAN BE MAINTAINED AT CLOSE TO AMBIENT TEMPERATURE. THE HYDROUS ALUMINA IS PREPARED BY HYDROLYSIS OF FINELY DIVIDED ALUMINUM HAVING A SURFACE AREA OF ABOUT 75,000 TO 1,000,000 SQUARE MILLIMETERS PER GRAM, AND THE HYDROLYSIS MEDIUM IS ACIDIC FROM THE PRESENCE OF A NONOXIDIZING ACID FOR INSTANCE, FORMIC ACID. THE HYDROUS ALUMINA FEED HAS A RATIO OF ALUMINA MONOHYDRATE TO AMOR-

PHOUS HYDROUS ALUMINA OF AT LEAST 0.5/1 AND THE ALUMINA MONOHYDRATE HAS A CRYSTALLINE SIZE OF LESS THAN 65 A. AMMONIA CAN BE ADDED TO THE COLUMN TO AID THE COAGULATION. OTHER SOLIDS, FOR INSTANCE, CALCINED ALUMINA, ALUMINA TRIHYDRATE, SILICA OR CARBON CAN BE INCORPORATED IN THE AQUEOUS SLURRY AS CAN ALUMINUM OXYUCHLORIDE. DRYING AND CALCINATION OF THE COAGULATED HYDROUS ALUMINA PROVIDES ADSORPTIVE SOLIDS WITH ADVANTAGEOUS CHARACTERISTIC WHEN USED, FOR INSTANCE, AS CATALYST COMPONENTS.

公开(公告)号：US3429660A

公开(公告)日：1969-02-25

申请号：US41689164

申请日：1964-12-08

Applicant: ENGELHARD IND INC

Inventor： KEITH CARL D ,  CORNELY KURT W

IPC: C01F7/42

CPC classification number: C01F7/428 ,  C01P2002/02 ,  C01P2002/60 ,  C01P2004/51 ,  C01P2004/61 ,  C01P2006/12