Abstract: A high pressure extraction apparatus and extracting method therefor are adapted to maintain a medium at the supercritical state to extract substance-to-be-extracted. The apparatus includes an extraction tank, a piston and a control unit. The control unit controls the piston to reciprocate in the extraction tank as well as controls the pressure of the extract space of the tank, feeding of the substance, discharge of extract, and discharge of leftover. Accordingly, the apparatus performs a continuous supercritical extraction.

Abstract: A high pressure extraction apparatus and extracting method therefor are adapted to maintain a medium at the supercritical state to extract substance-to-be-extracted. The apparatus includes an extraction tank, a piston and a control unit. The control unit controls the piston to reciprocate in the extraction tank as well as controls the pressure of the extract space of the tank, feeding of the substance, discharge of extract, and discharge of leftover. Accordingly, the apparatus performs a continuous supercritical extraction.

Abstract: A vertical and a horizontal vacuum sublimation apparatus with high efficiency and processes thereof are provided, especially for the materials with high melting point and low vapor pressure. The vertical sublimation purification apparatus comprises a sublimation channel body, a material rack, a heating evaporation device, a condensation device, an incubating device, and a product scratching device. The horizontal sublimation purification apparatus comprises a sublimation channel body, a material carrier, a heating evaporation device, and two end pipes. The apparatuses of the present invention can be applied to the mass production of high purity chemicals, and are capable of sublimating and purifying OLED illumination layer materials including Alq3, NPB and CuPc, which have high melting temperature and low vapor pressure.

Abstract: A vertical and a horizontal vacuum sublimation apparatus with high efficiency and processes thereof are provided, especially for the materials having high melting point and low vapor pressure. The vertical sublimation purification apparatus comprises a sublimation channel body, a material rack, a heating evaporation device, a condensation device, an incubating device and a product scratching device. The horizontal sublimation purification apparatus comprises a sublimation channel body, a material carrier, a heating evaporation device and two end pipes. The apparatuses of the present invention can be applied on high purity chemicals from mass production, and are capable of sublimating and purifying OLED illumination layer materials including ALq3, NPB and CuPc, which have high melting temperature and low vapor pressure.

Abstract: A method and an apparatus for preparing and culturing cells, particularly bone marrow stromal cells. The method includes the steps of placing an oxygenator and a scaffold in a container, such as a syringe, withdrawing bone marrow stromal cells with the syringe, evenly distributing the cells on the scaffold, connecting the syringe with a reservoir with a medium to enrich the syringe with the medium, and promoting the medium level movement in the syringe to culture bone marrow stromal cells.

Abstract: A vertical and a horizontal vacuum sublimation apparatus with high efficiency and processes thereof are provided, especially for the materials having high melting point and low vapor pressure. The vertical sublimation purification apparatus comprises a sublimation channel body, a material rack, a heating evaporation device, a condensation device, an incubating device and a product scratching device. The horizontal sublimation purification apparatus comprises a sublimation channel body, a material carrier, a heating evaporation device and two end pipes. The apparatuses of the present invention can be applied on high purity chemicals from mass production, and are capable of sublimating and purifying OLED illumination layer materials including ALq3, NPB and CuPc, which have high melting temperature and low vapor pressure.

Abstract: A method and an apparatus for preparing and culturing cells, particularly bone marrow stromal cells. The method includes the steps of placing an oxygenator and a scaffold in a container, such as a syringe, withdrawing bone marrow stromal cells with the syringe, evenly distributing the cells on the scaffold, connecting the syringe with a reservoir with a medium to enrich the syringe with the medium, and promoting the medium level movement in the syringe to culture bone marrow stromal cells.

Abstract: The invention discloses a method for depolymerization of a mixture containing polytetrahydrofuran derivatives, including heating the mixture comprising polytetrahydrofuran derivatives at 100-250° C. in the presence of a &bgr;-zeolite catalyst to obtain tetrahydrofuran, whereby the tetrahydrofuran monomer can be recovered from the waste materials in the preparation of polytetramethylene ether glycols.

Abstract: A cell-cultivating device includes a plurality of culture tanks and a driving device. The culture tanks communicate with each other and have culture medium inside. The driving device forces the culture medium to flow between the culture tanks so as to vertically oscillate medium levels in the culture tanks.