Abstract: Disclosed are a full-spectrum light emitting diode (LED) and applications thereof. A fluorescent powder composition is mixed with silica gel. In the mixture of the fluorescent powder composition and the silica gel, the mixture of the fluorescent powder composition and the silica gel is applied on blue LED chips. The blue LED chips are blue light emitting diode chips, and at least two blue LED chips are provided. The fluorescent powder composition includes fluorescent powder of at least two different colors. An excited spectrum is close to a plant photosynthesis curve, a meat irradiation curve, a biological growth curve, a seafood irradiation curve, a vegetable and fruit irradiation curve, and a pastry irradiation curve. A full-spectrum LED light source can be adjusted to simulate natural light irradiation. The excited spectrum is close to the plant photosynthesis curve, thereby causing photosynthesis in plants, achieving an optimal plant growth effect.

Abstract: A process and device of coupling separation and purification to produce ethyl tert-butyl ether (ETBE) is provided, wherein ethanol containing 1 wt % to 15 wt % of water, and a mixture containing ETBE and ethanol are fed into the distillation-extraction coupling zone for separation and purification. Said distillation-extraction coupling zone is composed of a distillation column and an extraction column. Said process and device can achieve the cogeneration of ETBE and ethanol, and possesses high commercial values.