公开(公告)号：US3433581A

公开(公告)日：1969-03-18

申请号：US3433581D

申请日：1965-10-21

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E ,  HIRSCHLER DANIEL A JR ,  LAMB FRANCES W

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/72 ,  B01J23/83 ,  B01J35/08 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  B01J11/00 ,  B01D53/00

CPC classification number: B01J37/024 ,  B01D53/86 ,  B01D53/944 ,  B01J23/72 ,  B01J23/83 ,  B01J35/08 ,  B01J37/03 ,  B01J37/086

公开(公告)号：US3428573A

公开(公告)日：1969-02-18

申请号：US3428573D

申请日：1965-06-01

Applicant: ETHYL CORP ,  VIRGINIA & CATALYSTS & CHEM IN

Inventor： REITMEIER RONALD E ,  HIRSCHLER DANIEL A JR ,  LAMB FRANCES W ,  STEPHENS RUTH E

IPC: B01D53/94 ,  B01J11/16

CPC classification number: B01D53/944

公开(公告)号：US3271324A

公开(公告)日：1966-09-06

申请号：US19923262

申请日：1962-06-01

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E ,  HIRSCHLER JR DANIEL A ,  LAMB FRANCES W

IPC: B01D53/94 ,  B01J23/70 ,  B01J37/02

CPC classification number: B01D53/944 ,  B01J23/70 ,  B01J37/0201

公开(公告)号：CA867665A

公开(公告)日：1971-04-06

申请号：CA867665D

Applicant: CATALYSTS & CHEM INC ,  ETHYL CORP

Inventor： LAMB FRANCES W ,  STEPHENS RUTH E ,  HIRSCHLER DANIEL A JR ,  REITMEIER RONALD E

公开(公告)号：US3925253A

公开(公告)日：1975-12-09

申请号：US34278773

申请日：1973-03-19

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E

IPC: B01D53/94 ,  B01J23/10 ,  B01J23/34 ,  B01J23/76 ,  B01J23/89 ,  B01J29/06

CPC classification number: B01J23/34 ,  B01D53/944 ,  B01J23/10 ,  B01J23/76 ,  B01J23/8926 ,  B01J23/894 ,  Y10S502/504

Abstract: Disclosed herein is an attrition resistant catalyst support comprising a carrier such as alumina coated with a silica coating which contains a rare earth metal oxide, and optionally alumina, such that the atom ratio of rare earth metal to silicon to aluminum in the coating is 1:0.1-2.0:0-20. A catalytic metal oxide such as copper oxide or manganese oxide may be included in the coating or added later in an amount such that the atom ratio of catalytic metal to rare earth metal to silicon to aluminum in the coating is 0.6-1.5:1:0.1-2.0:0-20. The final catalyst may be promoted with a small amount of a noble metal such as palladium to improve low temperature activity.

公开(公告)号：US3899444A

公开(公告)日：1975-08-12

申请号：US31783172

申请日：1972-12-22

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E

IPC: B01D53/94 ,  B01D53/86 ,  B01J23/10 ,  B01J23/16 ,  B01J23/40 ,  B01J23/48 ,  B01J11/40 ,  B01J11/06 ,  B01J11/32

CPC classification number: B01D53/86 ,  B01J23/10 ,  B01J23/6562 ,  B01J23/83 ,  B01J23/894 ,  B01J37/0009 ,  B01J37/023 ,  B01J37/0242 ,  B01J2523/00 ,  B01J2523/17 ,  B01J2523/31 ,  B01J2523/3718 ,  B01J2523/3725 ,  B01J2523/3706 ,  B01J2523/824 ,  B01J2523/72

Abstract: A thermally stable and attrition resistant catalyst support consisting essentially of an alumina coating on an inert substrate. The alumina coating has a rare earth metal oxide substantially uniformly distributed throughout. Catalyst compositions utilizing this support, processes for preparing both support and catalyst, and a method of treating internal combustion engine exhaust gases and preventing crystallization of alumina are disclosed. Catalysts consisting essentially of an alumina matrix containing rare earth metal oxide and a catalytic metal oxide are also disclosed. The atom ratio of rare earth metal to aluminum in the support is 1:5.7-25. The atom ratio of catalytic metal to rare earth metal to aluminum in the catalysts is 1:0.8-1.4:8-20.

公开(公告)号：US3524721A

公开(公告)日：1970-08-18

申请号：US3524721D

申请日：1967-12-22

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E

IPC: B01D53/94 ,  B01J23/70 ,  B01D47/00 ,  B01J11/40

CPC classification number: B01J23/70 ,  B01D53/9413 ,  B01D53/944 ,  B01D2255/2042 ,  B01D2255/2068 ,  B01D2255/20753

公开(公告)号：US3483138A

公开(公告)日：1969-12-09

申请号：US3483138D

申请日：1966-08-31

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E

IPC: B01D53/94 ,  B01J23/10 ,  C01B13/00 ,  B01J11/32 ,  C01B21/00

CPC classification number: B01D53/9413 ,  B01D2255/2068 ,  B01J23/10

公开(公告)号：US3226340A

公开(公告)日：1965-12-28

申请号：US9938161

申请日：1961-03-30

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E ,  HIRSCHLER JR DANIEL A ,  LAMB FRANCES W

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/72 ,  B01J23/83 ,  B01J35/08 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08

CPC classification number: B01J37/024 ,  B01D53/86 ,  B01D53/944 ,  B01J23/72 ,  B01J23/83 ,  B01J35/08 ,  B01J37/03 ,  B01J37/086

公开(公告)号：US3224831A

公开(公告)日：1965-12-21

申请号：US12342461

申请日：1961-07-12

Applicant: ETHYL CORP

Inventor： STEPHENS RUTH E

IPC: B01D53/86 ,  B01D53/94 ,  B01J21/02 ,  B01J23/40 ,  B01J23/42 ,  B01J27/00 ,  B01J27/185

CPC classification number: B01J27/1856 ,  B01D53/86 ,  B01D53/944 ,  B01J21/02 ,  B01J23/40 ,  B01J23/42 ,  B01J27/00