[go: up one dir, main page]

FR2384540A1 - METHOD AND DEVICE FOR MANUFACTURING ACTIVE ALUMINA - Google Patents

METHOD AND DEVICE FOR MANUFACTURING ACTIVE ALUMINA

Info

Publication number
FR2384540A1
FR2384540A1 FR7808437A FR7808437A FR2384540A1 FR 2384540 A1 FR2384540 A1 FR 2384540A1 FR 7808437 A FR7808437 A FR 7808437A FR 7808437 A FR7808437 A FR 7808437A FR 2384540 A1 FR2384540 A1 FR 2384540A1
Authority
FR
France
Prior art keywords
aluminum hydroxide
gas stream
active alumina
hot gas
cooling
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.)
Withdrawn
Application number
FR7808437A
Other languages
French (fr)
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Toyota Jidosha Kogyo KK
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 Toyota Motor Corp, Toyota Jidosha Kogyo KK filed Critical Toyota Motor Corp
Publication of FR2384540A1 publication Critical patent/FR2384540A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Procédé et dispositif pour fabriquer de l'alumine active à haute résistance. Le procédé consiste à sécher rapidement de l'hydroxyde d'aluminium dans un courant gazeux chaud, puis à refroidir rapidement l'hydroxyde d'aluminium séché par introduction d'un gaz de refroidissement dans le courant gazeux. Le dispositif comprend un brûleur 1 pour produire le courant gazeux chaud à plus de 300 degrés C, une canalisation de séchage 3 qui reçoit le courant de gaz chaud du brûleur, des moyens 2 pour introduire l'hydroxyde d'aluminium dans la canalisation 3, et une canalisation 4 d'injection de gaz de refroidissement située en aval du lieu d'introduction d'hydroxyde d'aluminium. L'alumine active obtenue a une résistance à l'écrasement et à l'usure très élevée, et est particulièrement appropriée comme support de catalyseur pour la purification des gaz d'échappement des automobiles.Method and device for manufacturing high strength active alumina. The process consists of rapidly drying aluminum hydroxide in a hot gas stream, then rapidly cooling the dried aluminum hydroxide by introducing a cooling gas into the gas stream. The device comprises a burner 1 for producing the hot gas stream at more than 300 degrees C, a drying line 3 which receives the hot gas stream from the burner, means 2 for introducing the aluminum hydroxide into the line 3, and a cooling gas injection pipe 4 located downstream from the place of introduction of aluminum hydroxide. The active alumina obtained has a very high resistance to crushing and wear, and is particularly suitable as a catalyst support for the purification of automobile exhaust gases.

FR7808437A 1977-03-23 1978-03-23 METHOD AND DEVICE FOR MANUFACTURING ACTIVE ALUMINA Withdrawn FR2384540A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3191977A JPS53116298A (en) 1977-03-23 1977-03-23 Method and apparatus for production activated alumina

Publications (1)

Publication Number Publication Date
FR2384540A1 true FR2384540A1 (en) 1978-10-20

Family

ID=12344376

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7808437A Withdrawn FR2384540A1 (en) 1977-03-23 1978-03-23 METHOD AND DEVICE FOR MANUFACTURING ACTIVE ALUMINA

Country Status (2)

Country Link
JP (1) JPS53116298A (en)
FR (1) FR2384540A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983089B (en) * 2014-06-06 2015-12-30 湖州强马分子筛有限公司 Horizontal furnace drying method and device thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB801462A (en) * 1955-06-29 1958-09-17 Pechiney Prod Chimiques Sa Improvements in or relating to the preparation of activated alumina
DE1200271B (en) * 1963-06-20 1965-09-09 Kaiser Aluminium Chem Corp Process for the production of active alumina particles
US3594982A (en) * 1970-04-20 1971-07-27 Kaiser Aluminium Chem Corp Process for drying unsaturated organic gaseous compounds
US3958341A (en) * 1970-12-05 1976-05-25 Bayer Aktiengesellschaft Process for the production of active aluminum oxide in bead and powder form

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB801462A (en) * 1955-06-29 1958-09-17 Pechiney Prod Chimiques Sa Improvements in or relating to the preparation of activated alumina
DE1200271B (en) * 1963-06-20 1965-09-09 Kaiser Aluminium Chem Corp Process for the production of active alumina particles
US3594982A (en) * 1970-04-20 1971-07-27 Kaiser Aluminium Chem Corp Process for drying unsaturated organic gaseous compounds
US3958341A (en) * 1970-12-05 1976-05-25 Bayer Aktiengesellschaft Process for the production of active aluminum oxide in bead and powder form

Also Published As

Publication number Publication date
JPS53116298A (en) 1978-10-11

Similar Documents

Publication Publication Date Title
US3544264A (en) Method and means for two-stage catalytic treating of engine exhaust gases
US2071119A (en) Process and apparatus for treating furnace gases and exhaust gases from internal combustion engines
EP0846491A3 (en) Method and system for exhaust gas purification
ATE84438T1 (en) METHOD AND DEVICE FOR PURIFYING EXHAUST GASES.
CA1137277A (en) Process for producing furnace black
CS9100243A2 (en) Method of mechanical energy production and equipment for its realization
US3957446A (en) Swirl reactor for exhaust gases
US3855986A (en) Reflectively coated combustion chamber for internal combustion engines and method of using same
US2381696A (en) Production of hydrogen-nitrogen mixtures
GB2037607A (en) Heat exchangers
FR2384540A1 (en) METHOD AND DEVICE FOR MANUFACTURING ACTIVE ALUMINA
FR2422610A2 (en) METHOD AND DEVICE FOR THE THERMAL TREATMENT OF FINE GRAIN MATERIALS BY HOT GAS
ATE129331T1 (en) METHOD AND DEVICE FOR FIRING WOOD CHIPS AND WOOD CHIPS TO PRODUCE LOW-POLLUTANT EXHAUST GASES WITH SLIDINGLY ADJUSTABLE FIRE POWER.
DE2963750D1 (en) Process for the removal of undesirable gaseous components from hot exhaust gases
RU93045100A (en) PLASMA THERMAL METHOD OF COAL PROCESSING IN SYNTHESIS-GAS
RO85226B (en) Process and installation for the recovery of blast-furnace gases
JPS5628630A (en) Temperature controlling method of high temperature high pressure reacting cylinder
SE8006534L (en) CATALYST REACTOR
JPS5597422A (en) Fast heating appartaus for continuous annealing installation
KR960016965A (en) Regeneration method of catalyst containing acetylide
SU1010404A1 (en) Furnace for purifying exhaust gases
SU591676A1 (en) Tubular furnace for roasting bulging materials
SU931713A1 (en) Process for producing reducing gas
JPS58117822A (en) Atmosphere heat treating furnace
SU1420044A2 (en) Method of producing ore-coal pellets

Legal Events

Date Code Title Description
ST Notification of lapse