GB794418A - Process for the separation of fractions with different properties from fine porous catalysts - Google Patents
Process for the separation of fractions with different properties from fine porous catalystsInfo
- Publication number
- GB794418A GB794418A GB11669/56A GB1166956A GB794418A GB 794418 A GB794418 A GB 794418A GB 11669/56 A GB11669/56 A GB 11669/56A GB 1166956 A GB1166956 A GB 1166956A GB 794418 A GB794418 A GB 794418A
- Authority
- GB
- United Kingdom
- Prior art keywords
- separating liquid
- separated
- fractions
- liquid
- modified
- 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
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
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/72—Regeneration or reactivation of catalysts, in general including segregation of diverse particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
Mixtures of fine porous catalyst particles, particularly powdery catalysts used in the catalytic cracking of hydrocarbons, are separated into fractions with different properties by "conventional," "modified" and "pore radius" sink-and-float methods using a heavy separating liquid of intermediate specific gravity, as defined in the Specification. One fraction may be separated as the floating fraction by the "modified" method in which the particles are contacted directly with the separating liquid (e.g. one or more of dibromo-ethane, bromoform and carbon tetrachloride, with or without gasoline) and one or more other fractions may be separated by one or more "conventional" or "pore radius" methods in which the particle pores accessible to liquid are partly or wholly filled with a liquid other than the separating liquid (.e.g. water or alcohol) prior to contact with the separating liquid. The separation may be effected by sedimentation, or it may be expedited by using a centrifuge or hydrocyclone. Examples are given of the treatment of silica-alumina equilibrium catalysts. Specifications 648,717, 761,281, [Group II], 794,419 and U.S.A. Specification 2,643,215 are referred to.ALSO:Mixtures of fine porous catalyst particles, particularly powdery catalysts used in the catalytic cracking of hydrocarbons, are separated into fractions with different properties by "conventional", "modified", and "pore radius" sink-and-float methods using a heavy separating liquid of intermediate specific gravity, as defined in the Specification. One fraction may be separated as the floating fraction by the "modified" method in which the particles are contacted directly with the separating liquid (e.g. one or more of dibromo-ethane, bromoform and carbon tetrachloride, with or without gasoline) and one or more other fractions may be separated by one or more "conventional" or "pore radius" methods in which the particle pores accessible to liquid are partly or wholly filled are contacted directly with the separating liquid (e.g. water or alcohol) prior to contact with the separating liquid. The separation may be effected by sedimentation, or it may be expedited by using a certifuge or hydrocyclone. Examples are given of the treatment of silica-alumina equilibrium catalysts. Specifications 648,717, 761,281, 794,419, and U.S.A. Specification 2,643,215 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL794418X | 1955-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB794418A true GB794418A (en) | 1958-05-07 |
Family
ID=19834501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11669/56A Expired GB794418A (en) | 1955-04-19 | 1956-04-17 | Process for the separation of fractions with different properties from fine porous catalysts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB794418A (en) |
-
1956
- 1956-04-17 GB GB11669/56A patent/GB794418A/en not_active Expired
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