Method and apparatus for the continuous treatment of catalyst and catalyst support material

• US 6,559,087 B1
• Filed: 03/27/2000
• Issued: 05/06/2003
• Est. Priority Date: 03/31/1999
• Status: Expired due to Fees

• Current Assignee: Basell Polyolefine GmbH (Lyondellbasell Industries NV)
• Original Assignee: Basell Polyolefine GmbH (Lyondellbasell Industries NV)
• Inventors: Karer, Rainer, Micklitz, Wolfgang, Evertz, Kaspar, Rosendorfer, Philipp, Feindt, Hans-Jacob, De Lange, Paulus
• Primary Examiner(s): Wu, David W.
• Assistant Examiner(s): CHOI, LING SIU
• Application Number:
  US09/536,356
• Time in Patent Office: 1,135 Days
• Field of Search: 502/104, 502/107, 502/85, 502/28, 502/38, 526/352, 526/905, 526/114, 526/154, 526/156
• US Class Current: 502/85
• CPC Class Codes: B01J 19/18 Stationary reactors having moving elements inside B01J19/08, B01J19/26 take precedence
• CPC Class Codes: B01J 19/22 in the form of endless belts
• CPC Class Codes: B01J 2219/00033 Continuous processes
• CPC Class Codes: B01J 2219/00132 using electric heating or cooling elements
• CPC Class Codes: B01J 37/00 Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
• CPC Class Codes: B01J 8/10 moved by stirrers or by rotary drums or rotary receptacles or endless belts
• CPC Class Codes: B01J 8/26 with two or more fluidised beds, e.g. reactor and regeneration installations
• CPC Class Codes: B01J 8/46 for treatment of endless filamentary, band or sheet material
• CPC Class Codes: B65G 53/22 the systems comprising a reservoir, e.g. a bunker
• CPC Class Codes: C08F 10/00 Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
• CPC Class Codes: C08F 4/24 Oxides
• CPC Class Codes: Y10S 526/905 Polymerization in presence of transition metal containing catalyst in presence of hydrogen

Abstract

A method for the treatment of catalyst or catalyst support material in an apparatus in which the treatment is carried out continuously in such a way that the physical and/or chemical conditions change during entry of the catalyst or catalyst support material into the apparatus and/or during exit thereof from the apparatus and/or the catalyst or catalyst support material is transported in the apparatus through zones (5, 6, 7) having different physical and/or chemical conditions.

Claims

1. A method for the treatment of a chromium containing catalyst or chromium containing catalyst support material for the polymerization of olefins in an apparatus in which the treatment is carried out by continuously transporting the chromium containing catalyst or chromium containing catalyst support material through zones (1, 5, 6, 7, 10) having different physical and/or chemical conditions.

2. A method as claimed in claim 1, wherein the catalyst or catalyst support material is treated in the apparatus in a fluidized bed (9).

3. A method as claimed in claim 2, wherein the fluidized bed (9) containing the catalyst or catalyst support material is conveyed in the apparatus through zones (5, 6, 7) in which different physical and/or chemical conditions prevail.

4. A method as claimed in claim 1, wherein the catalyst or catalyst support material is in the form of particles and is treated in the apparatus in a fixed bed.

5. A method as claimed in claim 4, wherein the fixed bed containing the catalyst or catalyst support material is conveyed with the aid of a conveying device through zones in which different physical and/or chemical conditions prevail.

6. A method as claimed in claim 5, wherein the conveying device has a conveyor belt (20) and/or a revolving tube and/or a turntable (23) and/or a non-moving, vertical tube with fixed internals (26).

7. A method as claimed in claim 1, wherein the treatment of the catalyst or catalyst support material is carried out in the form of an activation.

8. A method as claimed in claim 1, wherein the treatment of the catalyst or catalyst support material is carried out in the form of a calcination.

9. A method as claimed in claim 1, wherein liquids, additional solids and/or additional gases are employed in the treatment.