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Logistics Centers for the Plastics Industry The capacity of reactors and extruders for the production of polymers is growing steadily. New catalysts and reactor modifications allow significant improvement of the performance of existing plants. At the same time the proportion of plastics that is sent in bulk to processors, rather than packed in sacks directly to the customer, is increasing globally. The various delivery demands and the storage of pellets define a series of possibilities for the design of logistic centers. An optimal design can only be achieved through close collaboration and agreement with specialized companies so that the needs and procedures of the operation can be fulfilled. Good design and planning can lead to a reduction of the operating costs or an increase of the dispatch capacity per employee of up to 30 %.  相似文献   

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Waxes for Citrus Fruit Coating In the last years waxes basing on polyethylen have got a great importance in the field of citrus fruit coating. The propitious physiological and processing properties of these waxes were supposition for this development. Polyethylen wax coatings effect e. g. a reduction of water vapour permeability and lost of weight, an improvement of gloss, influence on respiration and the internal oxygen and carbondioxide content of the fruit.  相似文献   

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Waxes for Vine-Plant Refinement Coating with paraffin of the generous scion within the scope of process technic of vine-plant production to increase the yield of graft grapes, ready for sale, has got special importance. It is used as refinement paraffining before pre-forcing and as green paraffining before giving to nursery with foil cover. Thus drying up of the refined grapes is in the main avoided. The chemical and physical properties of the preservative are a crucial point. The compliance of a series of requirements correlates with the quality of the grape wax and the application process of the procedure. The investigation results shall contribute to an enlargement of the knowledge in the scope of grape refinement.  相似文献   

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