What is claimed is:
1. A cyclone dust collecting apparatus for a vacuum cleaner comprising:
a cyclone body having an air inflow port and air outflow port, adapted to form a vortex air current of contaminant-laden air drawn in through the air inflow port;
a dust receptacle removably connected to the cyclone body configured to receive dust and contaminants separated from the air by a centrifugal force of the vortex air current in the cyclone body;
a grill disposed about the air outflow port inside the cyclone body for preventing flow of the dust and contaminants separated from the air through the air outflow port; and a grill rotation supporting means for supporting the grill to rotate by the vortex air current in the cyclone body.
2. The cyclone dust collecting apparatus according to claim 1, wherein the cyclone body comprises:
a cylindrical main body having a side surface on which the air inflow port is formed and a upper surface on which the air outflow port is formed; and
a cover removably connected to the upper surface of the cylindrical main body,
wherein an air inflow pipe is configured to connect to an air inflow path of a cleaner main body, and an air outflow pipe is configured to connect to an air outflow path of the cleaner body, the air outflow also pipe being disposed about a center of the cover.
3. The cyclone dust collecting apparatus according to claim 2, wherein the cylindrical main body and cover are removably connected to each other through spiral connecting mechanisms respectively formed on corresponding surfaces of each other for connection.
4. The cyclone dust collecting apparatus according to claim 2, wherein the grill comprises:
a grill body; and
a plurality of air path members disposed at an outer circumference of the grill body in a predetermined slope angle to form an air passage to the air outflow port.
5. The cyclone dust collecting apparatus according to claim 2, wherein the grill comprises:
a grill body;
a plurality of air path members disposed at an outer circumference of the grill body in a predetermined slope angle to form an air passage to the air outflow port; and
a contaminant blocking member disposed at a lower portion of the grill body.
6. The cyclone dust collecting apparatus according to claim 2, wherein the grill rotation supporting means comprises:
a supporting member disposed at the center of the air outflow port of the cylindrical main body by a plurality of ribs protruding from an inner surface of the air outflow port; and
a rotating member having a first end rotatably supported by interposing a bearing, and a second end extending through the grill and secured to a lower portion of the grill.
7. The cyclone dust collecting apparatus according to claim 2, wherein a fine dust filter assembly is provided between the upper surface of the cylindrical main body and cover to filter fine dust.
8. The cyclone dust collecting apparatus according to claim 7, wherein the fine dust filter assembly comprises:
a fine dust filter; and
a filter frame having a lower grid structure, for receiving and supporting the fine dust filter.
9. The cyclone dust collecting apparatus according to claim 7, wherein the upper surface of the cylindrical main body slopes downward from a radially outer periphery towards a central portion.
10. A cyclone dust collecting apparatus adapted for use with a vacuum cleaner comprising:
a cyclone body having an air inflow port and air outflow port, adapted to form a vortex air current of contaminant-laden air drawn in through the air inflow port;
a dust receptacle removably connected to the cyclone body configured to receive dust and contaminants separated from the air;
a grill disposed proximate the air outflow port and inside the cyclone body;
the grill including at least one air path member; and
wherein the air path member is sloped.
11. The cyclone dust collecting apparatus according to claim 10, wherein a leading edge of the air path member is disposed radially inward of a trailing edge of the air path member.
12. The cyclone dust collecting apparatus according to claim 10, wherein the grill rotates.
13. The cyclone dust collecting apparatus according to claim 12, wherein the vortex air current rotates the grill in a direction similar to a rotational direction of the vortex air current.
14. The cyclone dust collecting apparatus according to claim 12, further comprising a rotating member having a first end including a bearing and a second end rigidly associated with the grill.
15. The cyclone dust collecting apparatus according to claim 14, wherein the bearing is also associated with a supporting member that is attached to the cyclone body.
16. A cyclone dust collecting apparatus adapted for use with a vacuum cleaner comprising:
means for forming a vortex air current of contaminant-laden air;
means for receiving dust and contaminants separated from the air by a centrifugal force of the vortex air current; and
means for rotating a grill disposed within a cyclone body.
17. The cyclone dust collecting apparatus according to claim 16, further comprising a means for supporting the rotating grill.
18. The cyclone dust collecting apparatus according to claim 16, further comprising a means for filtering fine dust.
19. The cyclone dust collecting apparatus according to claim 16, further comprising a means for dropping fine dust into a dust receptacle.
20. The cyclone dust collecting apparatus according to claim 16, further comprising a means for minimizing flowing past the rotating grill.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A process of preparing a fluorine-18 labeled compound comprising the steps:
a. Trapping of F-18fluoride on material A,
b. Eluting the F-18fluoride from material A using a solution B,
c. Addition of precursor D,
d. Nucleophilic substitution,
whereas,
solution B consist of an organic solvent L or a mixture of organic solvents L and a base E,
and
solvent L is not an ionic liquid,
and
the process comprises no azeotropic drying or evaporation after elution of F-18fluoride from material M prior addition of precursor D.
2. A process according to claim 1, wherein a gas G andor a solvent S is passed through material A after trapping of F-18fluoride and prior elution using B.
3. A process according to claim 2, wherein water is removed from material A by passing G andor S through A.
4. A process according to claims 2-3, wherein G is selected from the group comprising air, nitrogen, helium, argon, carbon dioxide, and mixtures thereof
5. A process according to claims 2-4, wherein S is selected from the group comprising air, acetonitrile, DMF, DMSO, THF, alcohols, toluene, benzene, sulfolan, and mixtures thereof
6. A process according to claim 1-5, wherein material A is a anion exchange material or cartridge or column made of anion exchange material.
7. A process according to claims 1-6, wherein material A is a QMA or PS-30 cartridge.
8. A process according to claims 1-7, wherein L consists of mixture of acetonitrile, DMF, DMSO, sulfolane, THF, tert-butanol, amyl alcohol, DMAA or mixtures thereof.
9. A process according to claims 1-8, wherein B contains water.
10. A process according to claims 1-8, wherein solution B not contains water.
11. A process according to claims 1-10, wherein B contains a complexing agent or a phase transfer catalyst.
12. A process according to claims 11, wherein B contains kryptofix or a crown ether.
13. A process according to claims 1-12, wherein base E is selected from the group comprising a:
a. potassium salt,
b. caesium salt,
c. rubidium salt,
d. tetraalkylammonium salt,
e. tetraalkylphosphonium salt.
14. A process according to claims 1-13, wherein base E is selected from the group comprising:
a. potassium carbonate,
b. potassium bicarbonate,
c. potassium oxalate,
d. potassium sulfonates,
e. potassium tert-alkoxylates,
f. caesium carbonate,
g. caesium bicarbonate
h. tetrabutylammonium hydroxide,
i. tetrabutylammonium bicarbonate,
j. tetrabutylammonium mesylate.
15. A process according to claims 1-14, wherein solution B is passed through material C prior elution of F-18fluoride from material A, wherein material C is a material appropriate for removing water from organic solvents.
16. A process according to claims 1-15, wherein solution B is passed through material C after elution of F-18fluoride from material A, wherein material C is a material appropriate for removing water from organic solvents.
17. A process according to claims 15-16, wherein a drying cartridge or column consisting of material C is used.
18. A process according to claims 15-17, wherein material C is selected from the group comprising
a. inorganic salts,
b. inorganic oxides,
c. resins,
d. molecular sieves,
or mixtures thereof.
19. A process according to claim 18, wherein material C is selected from the group comprising
a. sodium sulfate,
b. magnesium sulfate,
c. potassium carbonate,
d. calcium chloride,
e. calcium sulfate,
f. barium oxide,
g. magnesium oxide,
h. calcium oxide,
i. phosphorous oxide,
j. potassium hydroxide,
k. caesium carbonate,
l. caesium hydroxide,
m. molecular sieves,
or mixtures thereof.
20. A process of preparing a fluorine-18 labeled compound comprising the steps:
a. Mixing of aqueous F-18fluoride with solution B,
b. Passing the mixture of aqueous F-18fluoride and B through material C.
c. Addition of precursor D,
d. Nucleophilic substitution,
whereas,
solution B consist of an organic solvent L or a mixture of organic solvents L and a base E,
optionally B also contains a complexing agent or a phase transfer catalyst,
optionally B also contains water,
and
solvent L is not an ionic liquid,
and
C is a material appropriate for removing water from organic solvents,
and
the process comprises no azeotropic drying or evaporation prior addition of precursor D.
21. A process according to claim 20, wherein L consists of mixture of acetonitrile, DMF, DMSO, sulfolane, THF, tert-butanol, amyl alcohol, DMAA or mixtures thereof.
22. A process according to claims 20-21, wherein B contains water.
23. A process according to claims 20-21, wherein solution B not contains water.
24. A process according to claims 20-23, wherein B contains a complexing agent or a phase transfer catalyst.
25. A process according to claims 24, wherein B contains kryptofix or a crown ether.
26. A process according to claims 20-25, wherein base E is selected from the group comprising a:
a. potassium salt,
b. caesium salt,
c. rubidium salt,
d. tetraalkylammonium salt,
e. tetraalkylphosphonium salt.
27. A process according to claims 20-26, wherein base E is selected from the group comprising:
a. potassium carbonate,
b. potassium bicarbonate,
c. potassium oxalate,
d. potassium sulfonates,
e. potassium tert-alkoxylates,
f. caesium carbonate,
g. caesium bicarbonate
h. tetrabutylammonium hydroxide,
i. tetrabutylammonium bicarbonate,
j. tetrabutylammonium mesylate.
28. A process according to claims 20-27, wherein solution B is passed through material C prior elution of F-18fluoride from material A, wherein material C is a material appropriate for removing water from organic solvents.
29. A process according to claims 20-28, wherein solution B is passed through material C after elution of F-18fluoride from material A, wherein material C is a material appropriate for removing water from organic solvents.
30. A process according to claims 28-29, wherein a drying cartridge or column consisting of material C is used.
31. A process according to claims 28-30, wherein material C is selected from the group comprising
a. inorganic salts,
b. inorganic oxides,
c. resins,
d. molecular sieves,
or mixtures thereof.
32. A process according to claim 31, wherein material C is selected from the group comprising
a. sodium sulfate,
b. magnesium sulfate,
c. potassium carbonate,
d. calcium chloride,
e. calcium sulfate,
f. barium oxide,
g. magnesium oxide,
h. calcium oxide,
i. phosphorous oxide,
j. potassium hydroxide,
k. caesium carbonate,
l. caesium hydroxide,
m. molecular sieves,
or mixtures thereof.