RU2000117140A - METHOD FOR PREPARING THE CATALYST FOR CLEANING THE EXHAUST GASES OF INTERNAL COMBUSTION ENGINES - Google Patents

METHOD FOR PREPARING THE CATALYST FOR CLEANING THE EXHAUST GASES OF INTERNAL COMBUSTION ENGINES

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Publication number
RU2000117140A
RU2000117140A RU2000117140/04A RU2000117140A RU2000117140A RU 2000117140 A RU2000117140 A RU 2000117140A RU 2000117140/04 A RU2000117140/04 A RU 2000117140/04A RU 2000117140 A RU2000117140 A RU 2000117140A RU 2000117140 A RU2000117140 A RU 2000117140A
Authority
RU
Russia
Prior art keywords
catalyst
preparing
internal combustion
exhaust gases
combustion engines
Prior art date
Application number
RU2000117140/04A
Other languages
Russian (ru)
Other versions
RU2190470C2 (en
Inventor
Елена Алексеевна Дробаха
Константин Александрович Солнцев
Original Assignee
Институт физико-химических проблем керамических материалов РАН
Filing date
Publication date
Application filed by Институт физико-химических проблем керамических материалов РАН filed Critical Институт физико-химических проблем керамических материалов РАН
Priority to RU2000117140A priority Critical patent/RU2190470C2/en
Priority claimed from RU2000117140A external-priority patent/RU2190470C2/en
Publication of RU2000117140A publication Critical patent/RU2000117140A/en
Application granted granted Critical
Publication of RU2190470C2 publication Critical patent/RU2190470C2/en

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Claims (4)

1. Способ приготовления катализатора для очистки отработавших газов двигателей внутреннего сгорания, включающий нанесение на инертный носитель слоя гидроксида алюминия с последующей термической дегидратацией его, пропиткой водными растворами солей церия, платины, родия, сушкой и восстановлением, отличающийся тем, что нанесение слоя гидроксида алюминия проводят при комнатной температуре в водном растворе гидроксида калия при непосредственном растворении в нем металлического алюминия.1. A method of preparing a catalyst for purification of exhaust gases of internal combustion engines, comprising applying an aluminum hydroxide layer to an inert carrier, followed by thermal dehydration thereof, impregnating cerium, platinum, rhodium salts with aqueous solutions, drying and recovering, characterized in that the aluminum hydroxide layer is applied at room temperature in an aqueous solution of potassium hydroxide by directly dissolving aluminum metal in it. 2. Способ по п. 1, отличающийся тем, что нанесение гидроксида алюминия проводят при температуре не выше 25oС в растворе гидроксида калия с концентрацией не выше 2,5% при непосредственном растворении в нем металлического алюминия марки А-95, который используется в виде стружки определенной толщины, ширины и диаметра завитка.2. The method according to p. 1, characterized in that the application of aluminum hydroxide is carried out at a temperature not exceeding 25 o C in a solution of potassium hydroxide with a concentration of not higher than 2.5% by directly dissolving in it a metal aluminum grade A-95, which is used in in the form of chips of a certain thickness, width and diameter of the curl. 3. Способ по п. 2, отличающийся тем, что в качестве инертного носителя используется керамический блочный носитель из кордиерита, рутила или гематита с количеством каналов 600-900 шт/дюйм2.3. The method according to p. 2, characterized in that the ceramic block carrier of cordierite, rutile or hematite with the number of channels 600-900 pcs / inch 2 is used as an inert carrier. 4. Способ по п. 1, отличающийся тем, что восстановление катализатора проводят в водном растворе боргидрида натрия с последующей промывкой и сушкой готового катализатора. 4. The method according to p. 1, characterized in that the recovery of the catalyst is carried out in an aqueous solution of sodium borohydride, followed by washing and drying the finished catalyst.
RU2000117140A 2000-07-03 2000-07-03 Method of preparing catalyst for cleaning wastes gases of internal combustion engines RU2190470C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000117140A RU2190470C2 (en) 2000-07-03 2000-07-03 Method of preparing catalyst for cleaning wastes gases of internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000117140A RU2190470C2 (en) 2000-07-03 2000-07-03 Method of preparing catalyst for cleaning wastes gases of internal combustion engines

Publications (2)

Publication Number Publication Date
RU2000117140A true RU2000117140A (en) 2002-06-10
RU2190470C2 RU2190470C2 (en) 2002-10-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000117140A RU2190470C2 (en) 2000-07-03 2000-07-03 Method of preparing catalyst for cleaning wastes gases of internal combustion engines

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RU (1) RU2190470C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2614147C1 (en) * 2015-12-15 2017-03-23 Открытое акционерное общество "Ассоциация разработчиков и производителей систем мониторинга" Method of preparing catalyst and catalyst for oxidising co

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