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19
2022
-
09
Use characteristics of Stainless steel Supercritical foaming equipment
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Stainless steel Supercritical foaming equipment extraction is an emerging extraction and separation technology in the food industry. Compared with the traditional chemical solvent extraction method, its advantages are that there is no chemical solvent consumption and residue
Stainless steel Supercritical foaming equipment extraction is an emerging extraction and separation technology in the food industry. Compared with the traditional chemical solvent extraction method, its advantages are that there is no chemical solvent consumption and residue, avoiding thermal degradation of the extract at high temperature, protecting the activity of physiologically active substances and maintaining the natural flavor of the extract, etc. The following introduces the application status of supercritical fluid extraction in natural pigments.
Stainless steel Supercritical foaming equipment fluid extraction of natural pigments has many advantages, but my country has not yet widely industrialized application in this field. The main reason is that the one-time investment of supercritical equipment is relatively large, and the process of extracting natural pigments is still immature. However, due to the various advantages of supercritical fluid extraction, many manufacturers have or are preparing to invest in supercritical equipment. The research of supercritical fluid extraction of natural pigments is the future development.
Supercritical fluid extraction is an extraction process that uses a fluid above a critical temperature and pressure as a solvent. The fluid near the critical point not only has extremely high dissolving ability for substances, but also the solubility of substances changes with the pressure or temperature of the system, so that by adjusting the pressure or temperature of the system, it is convenient to selectively extract and separate substances. .
Supercritical foam molding in Stainless steel Supercritical foaming equipment is a physical foam molding technology and a microcellular foam molding technology. It is a process of injection molding, extrusion and blow molding. Other gases such as carbon dioxide or nitrogen in the state are injected into a special plasticizing device, so that the gas and the molten raw materials are fully and uniformly mixed/diffused to form a single-phase mixed sol, and then the sol is introduced into the mold cavity or extrusion die, so that the The sol produces a large pressure drop, so that the gas is precipitated to form a large number of bubble nuclei; in the subsequent cooling and forming process, the bubble nuclei inside the sol continue to grow and form to obtain microcellular foamed plastic products.
Stainless,steel,Supercritical,foaming,equipment
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