GB1273865A - Separation of particles by size - Google Patents
Separation of particles by sizeInfo
- Publication number
- GB1273865A GB1273865A GB4462570A GB4462570A GB1273865A GB 1273865 A GB1273865 A GB 1273865A GB 4462570 A GB4462570 A GB 4462570A GB 4462570 A GB4462570 A GB 4462570A GB 1273865 A GB1273865 A GB 1273865A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- bed
- column
- dispersion
- effluent
- 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
- 238000000926 separation method Methods 0.000 title abstract 3
- 239000011860 particles by size Substances 0.000 title 1
- 239000002245 particle Substances 0.000 abstract 9
- 239000007787 solid Substances 0.000 abstract 4
- 239000006185 dispersion Substances 0.000 abstract 3
- 239000012530 fluid Substances 0.000 abstract 3
- 239000004793 Polystyrene Substances 0.000 abstract 2
- 239000008367 deionised water Substances 0.000 abstract 2
- 229910021641 deionized water Inorganic materials 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 229920002223 polystyrene Polymers 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 abstract 1
- 239000004141 Sodium laurylsulphate Substances 0.000 abstract 1
- 238000000149 argon plasma sintering Methods 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 230000003111 delayed effect Effects 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000004816 latex Substances 0.000 abstract 1
- 229920000126 latex Polymers 0.000 abstract 1
- 239000002923 metal particle Substances 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/0005—Field flow fractionation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/34—Size selective separation, e.g. size exclusion chromatography, gel filtration, permeation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/0005—Field flow fractionation
- G01N2030/001—Field flow fractionation hydrodynamic fractionation, e.g. CHDF or HDC
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
1,273,865. Wet separation of solids. DOW CHEMICAL CO. 18 Sept., 1970 [19 Sept., 1969], No. 44625/70. Heading B2H. Solid particles dispersed in a fluid are separated according to size by passing the dispersion through a porous bed of solid particles of larger size than the particles to be separated, eluting the bed with further dispersing fluid to cause the particles to pass right through the bed and collecting the effluent from the bed wherein larger particles are first removed from the bed and successively smaller particles are subsequently removed therefrom. It is believed that the larger particles leave the porous bed first because they are not delayed in the smaller portions of the fluid passageways where the effluent flow is slower. The bed may be constituted by glass, plastics or metal particles, examples of which are given. In a particular example particles of a synthetic, e.g. polystyrene, latex is dispersed in deionized water and the dispersion stabilized by the addition of sodium lauryl sulphate. A column is packed with sulphonated, crosslinked polystyrene beads and deionized water from a reservoir is passed through the column by means of a syringe pump via a sample injection chamber. A sample of the dispersion is then introduced through the sample injection chamber. The discharge from the column is connected to a solids detector in the form of a light scattering apparatus which detects turbidity in the effluent from the column and records it on a strip chart. The plot on the chart indicates sharp separation between large and small particles.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85933169A | 1969-09-19 | 1969-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1273865A true GB1273865A (en) | 1972-05-10 |
Family
ID=25330638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4462570A Expired GB1273865A (en) | 1969-09-19 | 1970-09-18 | Separation of particles by size |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5218149B1 (en) |
| BE (1) | BE756355A (en) |
| CA (1) | CA945941A (en) |
| DE (1) | DE2046220C3 (en) |
| FR (1) | FR2061148A5 (en) |
| GB (1) | GB1273865A (en) |
| NL (1) | NL170101C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3636481A1 (en) * | 1986-10-27 | 1988-05-05 | Altenburger Electronic Gmbh | METHOD FOR PRODUCING MICRO TEST BODIES FOR PORE-SIZE MEASUREMENT IN ULTRA AND MICRO FILTERS, AND TEST BODIES PRODUCED THEREFORE |
| WO2023208919A1 (en) | 2022-04-28 | 2023-11-02 | Röhm Gmbh | Poly(meth)acrylat impact modifier with reduced metal ion content and method for its production |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1292883B (en) * | 1958-04-16 | 1969-04-17 | Pharmacia Ab | Polymeric release agent in the form of gel cores swollen in a solvent |
| US3326875A (en) * | 1963-01-31 | 1967-06-20 | Dow Chemical Co | Separation of large polymer molecules in solution |
| US3458437A (en) * | 1966-05-27 | 1969-07-29 | Dart Ind Inc | Method and apparatus for chromatographic analysis |
| CH474218A (en) * | 1967-03-17 | 1969-06-30 | Nestle Sa | Method and apparatus for separating proteins from a protein solution or suspension |
-
1970
- 1970-08-31 CA CA092,022A patent/CA945941A/en not_active Expired
- 1970-09-09 FR FR7032683A patent/FR2061148A5/fr not_active Expired
- 1970-09-16 NL NL7013712A patent/NL170101C/en not_active IP Right Cessation
- 1970-09-18 JP JP8138070A patent/JPS5218149B1/ja active Pending
- 1970-09-18 BE BE756355D patent/BE756355A/en not_active IP Right Cessation
- 1970-09-18 DE DE19702046220 patent/DE2046220C3/en not_active Expired
- 1970-09-18 GB GB4462570A patent/GB1273865A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL170101C (en) | 1982-10-01 |
| CA945941A (en) | 1974-04-23 |
| BE756355A (en) | 1971-03-18 |
| NL170101B (en) | 1982-05-03 |
| DE2046220A1 (en) | 1971-04-01 |
| NL7013712A (en) | 1971-03-23 |
| JPS5218149B1 (en) | 1977-05-19 |
| DE2046220B2 (en) | 1979-02-01 |
| FR2061148A5 (en) | 1971-06-18 |
| DE2046220C3 (en) | 1979-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |