Abstract: The invention relates to a carrier which is suitable for the cultivation of cells and is preferably a plate-shaped carrier, e.g. made of glass, silicon or plastic or a combination thereof, in which carrier at least one first recess is formed which extends over a first thickness portion of the carrier, wherein an array of second recesses extends from the first recess into a second thickness portion of the carrier adjacent to the first thickness portion. The first thickness portion may have a thickness of a few micrometres to several centimetres. The second recesses, which extend from a first recess into the second thickness portion and each form a second array, form cups which are suitable for receiving cells and/or synthetic particles, e.g. made of plastic or glass.

Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising: (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.

Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.