2results about How to "Prevent oxidative rancidity" patented technology

This invention discloses a nervonic acid-rich *Xanthoceras sorbifolium* diester oil and its preparation method, belonging to the field of oleochemical technology. The invention first removes some long-chain monounsaturated free fatty acids from *Xanthoceras sorbifolium* oil through saponification and low-temperature settling. Then, porous organic polymer materials are used to further enrich nervonic acids with higher molecular weight and larger particle size. Glycerol is added to the free fatty acids, and esterification with lipase catalyzes the synthesis of diglycerides, thus obtaining a nervonic acid-rich *Xanthoceras sorbifolium* diester oil. The addition of a compound antioxidant effectively prevents oxidative rancidity of the diester oil. The *Xanthoceras sorbifolium* diester oil prepared by this invention has a rich nervonic acid content, a high diglyceride content, and excellent thermal stability, thus showing good application prospects and value in the field of oleochemicals.

The application discloses a buffer type filling storage tank for diesel anti-wear agent production and relates to the technical field of material storage containers. The buffer type filling storage tank comprises a tank body with a feeding port and a discharging port. The buffer type filling storage tank further comprises a feeding pipe vertically arranged in the tank body, a top end of the feeding pipe being communicated with the feeding port and a bottom end of the feeding pipe being located above the bottom of the tank body. A plurality of guide pipes are arranged along the feeding pipe in a ring shape and are parallel to the feeding pipe, and the guide pipes rotate along an axis. A float plate is sleeved outside the feeding pipe and the guide pipes and floats along a liquid surface in the tank in a vertical direction. A first rotating part is rotationally connected to an outer peripheral edge of the float plate. A second rotating part is rotationally connected to an upper portion of a middle part of the float plate. The buffer type filling storage tank is driven by the flowing energy of feeding liquid and does not need external power. Foam generation is reduced by bottom feeding, and active defoaming of a liquid surface is cooperatively matched, so that active physical elimination of the foam of the liquid surface is realized, and filling precision and product quality are improved.