GB648717A - A method of fractionating microporous particles by flotation - Google Patents
A method of fractionating microporous particles by flotationInfo
- Publication number
- GB648717A GB648717A GB9379/48A GB937948A GB648717A GB 648717 A GB648717 A GB 648717A GB 9379/48 A GB9379/48 A GB 9379/48A GB 937948 A GB937948 A GB 937948A GB 648717 A GB648717 A GB 648717A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- liquid
- flotation
- solutions
- carbon tetrachloride
- 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
- 239000002245 particle Substances 0.000 title abstract 11
- 238000005188 flotation Methods 0.000 title abstract 8
- 238000000034 method Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 14
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 abstract 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 6
- PAAZPARNPHGIKF-UHFFFAOYSA-N 1,2-dibromoethane Chemical compound BrCCBr PAAZPARNPHGIKF-UHFFFAOYSA-N 0.000 abstract 4
- SZNYYWIUQFZLLT-UHFFFAOYSA-N 2-methyl-1-(2-methylpropoxy)propane Chemical compound CC(C)COCC(C)C SZNYYWIUQFZLLT-UHFFFAOYSA-N 0.000 abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 4
- 239000007864 aqueous solution Substances 0.000 abstract 4
- DIKBFYAXUHHXCS-UHFFFAOYSA-N bromoform Chemical compound BrC(Br)Br DIKBFYAXUHHXCS-UHFFFAOYSA-N 0.000 abstract 4
- 239000003054 catalyst Substances 0.000 abstract 4
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 abstract 4
- 239000012266 salt solution Substances 0.000 abstract 4
- 239000000243 solution Substances 0.000 abstract 4
- 239000011148 porous material Substances 0.000 abstract 3
- QXSZNDIIPUOQMB-UHFFFAOYSA-N 1,1,2,2-tetrabromoethane Chemical compound BrC(Br)C(Br)Br QXSZNDIIPUOQMB-UHFFFAOYSA-N 0.000 abstract 2
- 229950005228 bromoform Drugs 0.000 abstract 2
- 150000002334 glycols Chemical class 0.000 abstract 2
- 229910044991 metal oxide Inorganic materials 0.000 abstract 2
- 150000004706 metal oxides Chemical class 0.000 abstract 2
- 150000007524 organic acids Chemical class 0.000 abstract 2
- 235000005985 organic acids Nutrition 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000007664 blowing Methods 0.000 abstract 1
- 238000005194 fractionation Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- 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
-
- 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
- B03B5/44—Application of particular media therefor
- B03B5/442—Application of particular media therefor composition of heavy media
Landscapes
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Alumina-silica, metal oxides, activated carbon, and other catalysts are separated into fractions having higher and lower specific surfaces by introducing into the pores thereof an impregnating liquid of a density different from the true density of the particles, dispersing the impregnated particles in a flotation liquid immiscible with the impregnating liquid and separating the dispersed particles into fractions denser and less dense than the flotation liquid, e.g. by settling or centrifugally. The flotation liquid may be ethylene dibromide alone or in solution in toluene or carbon tetrachloride; bromoform in carbon tetrachloride; acetylene tetrabromide in carbon tetrachloride or benzene; or aqueous salt solutions; and the impregnant may be water, methanol or ethanol or aqueous solutions thereof; glycols or aqueous solutions thereof, aqueous salt solutions, lower organic acids or salts thereof, diisobutyl ether, ethylene dibromide, or isoamyl alcohol.ALSO:A mixture of microporous particles is separated according to porosity by introducing into the pores thereof an impregnating liquid of a density different from the true density of the particles, dispersing the impregnated particles in a flotation liquid immiscible with the impregnating liquid and having a density intermediate between the densities of the impregnated particles, and separating the dispersed particles into fractions denser than and less dense than the flotation liquid. The impregnating liquid may be introduced into the pores of the particles by maintaining them in an atmosphere of the vaporized liquid or by blowing with a stream of air containing vaporized impregnant. The latter preferably wets the particles in preference to the flotation liquid. Final separation may be effected by settling or centrifugally. The process may be applied to the fractionation of powdered catalysts into portions having higher and lower specific surfaces, e.g. alumina-silica catalysts, metal oxide catalysts or activated carbon may be treated. Impregnating liquids include water; methanol and ethanol and aqueous solutions thereof; glycols and aqueous solutions thereof; aqueous salt solutions; lower organic acids or salts thereof; diisobutyl ether; ethylene dibromide; isoamyl alcohol. Flotation liquids include ethylene dibromide alone or in solution in toluene or carbon tetrachloride; solutions of bromoform in carbon tetrachloride; solutions of acetylene tetrabromide in carbon tetrachloride or benzene; aqueous salt solutions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US648717XA | 1947-05-05 | 1947-05-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB648717A true GB648717A (en) | 1951-01-10 |
Family
ID=22058763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9379/48A Expired GB648717A (en) | 1947-05-05 | 1948-04-02 | A method of fractionating microporous particles by flotation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB648717A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE965214C (en) * | 1953-05-29 | 1957-06-06 | Bataafsche Petroleum | Process for fractionating microporous solid particles |
| WO2019174615A1 (en) * | 2018-03-16 | 2019-09-19 | 王武生 | Method for physically separating light metal from metal mixture |
| CN114476728A (en) * | 2021-12-31 | 2022-05-13 | 东至县玉雪粮油有限责任公司 | Automatic control conveying system and control method for grain classification |
-
1948
- 1948-04-02 GB GB9379/48A patent/GB648717A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE965214C (en) * | 1953-05-29 | 1957-06-06 | Bataafsche Petroleum | Process for fractionating microporous solid particles |
| WO2019174615A1 (en) * | 2018-03-16 | 2019-09-19 | 王武生 | Method for physically separating light metal from metal mixture |
| CN114476728A (en) * | 2021-12-31 | 2022-05-13 | 东至县玉雪粮油有限责任公司 | Automatic control conveying system and control method for grain classification |
| CN114476728B (en) * | 2021-12-31 | 2023-10-20 | 东至县玉雪粮油有限责任公司 | Automatic control conveying system and control method for grain classification |
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