Separation method of mixture

A separation method for mixture can be used to separate out particular component or particles from mixture and includes thin-layer or column chromatographic method. it features that an AC voltage is applied to the mixture in the direction perpendicular to the moving direction of mixture for forming an electric field while a gradually intensified or weakened magnetic field parallel to said moving direction is applied. Regulating the AC frequency can make the separated particles vibrating by maximal amplitude.

Chromatographic separation method

A chromatographic separation method for mixture includes thin-layer chromatography and column chromatography, and features that an alternative electric field is applied to the mixture to be separatedin the direction perpendicular to the direction of mixture moving, the frequency of alternative electric field is regulated to make the particles to be separated out have maximal vibration amplitude,and a magnetic field is applied to said mixture in the direction parallel to the direction of mixture moving.

Separation of mixture

Aluminum alloy vacuum welding method capable of eliminating silicon segregation

The invention discloses an aluminum alloy vacuum welding method capable of eliminating silicon segregation. The method comprises the following steps of: (1) preheating, namely assembling aluminum alloy to be welded and aluminum-silicon solder, placing parts into a vacuum brazing furnace, heating the parts to 200 to 300 DEG C at the heating speed of 8 to 10 DEG C/s, and preserving heat for 20 to 40 minutes at the vacuum degree of 5*10<-2> Pa; (2) breaking a membrane, namely heating to 530 to 550 DEG C at the heating speed of 6 to 9 DEG C/s and preserving heat for 20 to 40 minutes at the vacuumdegree of 5*10<-3> Pa; (3) welding, heating to 600 to 620 DEG C at the heating speed of less than 5 DEG C/s and preserving heat for 60 to 90 minutes at the vacuum degree of 3*10<-3> Pa; and (4) cooling, namely cooling the welded parts to 520 to 540 DEG C along with the furnace, taking out the parts, and performing air-cooling on the parts to room temperature. Vacuum brazing process parameters arecontrolled ...

Greenhouse distillation purification apparatus and greenhouse distillation purification method

The invention relates to the seawater desalination technique. Aiming at the complex process and expensive equipment of the prior art, a greenhouse distillation purification device is provided and comprises a sealed container used for containing seawater; the wall of the container of the sealed container is made from transparency material and is used for using the solar radiation so as to generate greenhouse effect in the sealed container. The device is characterized in that the sealed container also comprises a top cap, and the inner surface thereof is provided with a plurality of cone-like tubes with downward tips; the interior of the sealed container also comprises a plurality of collecting pipes slantways arranged under a plurality of cone-line tubes; and the parts of the collecting pipes corresponding to the cone-like tubes are provided with a header tank used for collecting water drops which are gathered and dripped by the tips of the cone-line tubes and is discharged by water ends ...