39results about How to "Less waste" patented technology

The utility model provides an intelligent card module, comprising a carrier tape and a chip packaging module. The carrier tape comprises a carrier tape insulation base material with the panel provided with a plurality of through holes, wherein the inner wall of each through hole and two end surfaces of the peripheral carrier tape insulation base materials are all provided with a catalyzed printing ink line layer, and the outside of the catalyzed printing ink line layer is provided with a copper line layer to from carrier tape function pads and carrier tap pads of the carrier tap which are conductive; the chip packaging module comprise a chip and a carrier; the function pads of the chip are correspondingly conducting with the function pads of the carrier; the function pads of the carrier are correspondingly conducting with the function pads of the carrier tape. According to the utility model, the chip packaging module and the carrier tape are combined in a welding mode to form an intelligent card module; compared with an intelligent card module prepared by traditional process, the intelligent card module of the utility model has better environmental protection effect and simpler process and generates less waste materials and pollution in production process; in addition, the intelligent card module keeps the performance effect of a traditional intelligent card module, and meanwhile greatly reduces raw material cost, production cost and maintenance cost.

The invention discloses a method for reclaiming organic acid from organic solvent in chemical mass transfer separation technology field. the organic solvent loaded with organic acid is mixed with aqueous solution of the organic acid salt and they are produced into latex liquid, then the latex and the aqueous solution containing the organic acid enters the negative chamber and positive chamber of the electrodialysis device, it realizes the synchronous extraction and condense of organic acid in the aqueous solution through electric transfer and electrode reaction. Compared with current technology, it has a high energy utilization rate, and low cost and side product.

The invention discloses a preparation method of monodisperse magnetic polystyrene microspheres, microspheres prepared by the preparation method and application of the microspheres. The preparation method comprises the following steps that: seed microspheres are prepared by a solution polymerization method; porous crosslinked polystyrene microspheres are prepared by swelling polymerization; nitro porous crosslinked polystyrene microspheres are prepared under acidic conditions; finally, through an in-situ reaction, the microspheres in the previous step is mixed with inorganic salt with ferrous ions, an initiator and ammonia water for reaction, and performing centrifugal cleaning to obtain the monodisperse magnetic polystyrene microspheres. In the preparation process, the usage amount of an organic reagent and the amount of wastes are less than those in the prior art; and the prepared magnetic polystyrene microspheres have the advantages of monodispersity, low sedimentation rate, high magnetic separation speed and mild separation conditions.