GB1398893A - Method of treating exhaust gases of internal combustion engines - Google Patents

Method of treating exhaust gases of internal combustion engines

Info

Publication number
GB1398893A
GB1398893A GB2708772A GB2708772A GB1398893A GB 1398893 A GB1398893 A GB 1398893A GB 2708772 A GB2708772 A GB 2708772A GB 2708772 A GB2708772 A GB 2708772A GB 1398893 A GB1398893 A GB 1398893A
Authority
GB
United Kingdom
Prior art keywords
alumina
core
rare earth
earth metal
oxides
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2708772A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WR Grace and Co Conn
WR Grace and Co
Original Assignee
WR Grace and Co Conn
WR Grace and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WR Grace and Co Conn, WR Grace and Co filed Critical WR Grace and Co Conn
Publication of GB1398893A publication Critical patent/GB1398893A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B01J35/34—Mechanical properties
    • B01J35/38—Abrasion or attrition resistance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
GB2708772A 1971-06-11 1972-06-09 Method of treating exhaust gases of internal combustion engines Expired GB1398893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15238871A 1971-06-11 1971-06-11

Publications (1)

Publication Number Publication Date
GB1398893A true GB1398893A (en) 1975-06-25

Family

ID=22542710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2708772A Expired GB1398893A (en) 1971-06-11 1972-06-09 Method of treating exhaust gases of internal combustion engines

Country Status (4)

Country Link
DE (1) DE2228452A1 (enExample)
FR (1) FR2140575B1 (enExample)
GB (1) GB1398893A (enExample)
IT (1) IT956424B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208931A1 (de) * 1981-03-13 1982-11-11 W.R. Grace & Co., 10036 New York, N.Y. Katalysatorzusammensetzung mit schwefeloxid-getter zum katalytischen kracken von kohlenwasserstoffen
WO1995017249A1 (en) * 1993-12-20 1995-06-29 Kemira Oy Catalyst for the purification of gasoline engine exhaust gases and method for the preparation of the same
US6764672B2 (en) 2001-04-03 2004-07-20 Alcoa Inc. Thermally stable alumina particulates

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4206087A (en) * 1977-01-06 1980-06-03 Engelhard Minerals & Chemicals Corporation Catalyst for reducing pollutants in waste gas streams and process for preparing the catalyst
FR2721837B1 (fr) 1994-07-01 1996-08-30 Inst Francais Du Petrole Catalyseur d'oxydation resistant a des temperatures elevees, son procede de preparation et procede de combustion utilisant un tel catalyseur

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1350947A (fr) * 1963-01-25 1964-01-31 Socony Mobil Oil Co Nouveau catalyseur de conversion des hydrocarbures
US3483138A (en) * 1966-08-31 1969-12-09 Ethyl Corp Neodymium oxide catalyst compositions

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3208931A1 (de) * 1981-03-13 1982-11-11 W.R. Grace & Co., 10036 New York, N.Y. Katalysatorzusammensetzung mit schwefeloxid-getter zum katalytischen kracken von kohlenwasserstoffen
GB2140791A (en) * 1981-03-13 1984-12-05 Grace W R & Co Sulfur oxide gettering agent composition
WO1995017249A1 (en) * 1993-12-20 1995-06-29 Kemira Oy Catalyst for the purification of gasoline engine exhaust gases and method for the preparation of the same
US6764672B2 (en) 2001-04-03 2004-07-20 Alcoa Inc. Thermally stable alumina particulates

Also Published As

Publication number Publication date
FR2140575A1 (enExample) 1973-01-19
FR2140575B1 (enExample) 1977-12-23
DE2228452A1 (de) 1973-01-04
IT956424B (it) 1973-10-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee