6results about How to "Restore activity" patented technology

This invention discloses a method for preparing and analyzing trans-4-aminocyclohexylacetic acid. The preparation method is as follows: 4-nitrophenylacetic acid undergoes catalytic hydrogenation in a solvent, followed by filtration. The filtrate is then treated with acid to obtain a 4-aminophenylacetic acid salt solution. The collected catalyst is activated. The 4-aminophenylacetic acid salt solution is mixed with isopropanol, barium hydroxide, tetrabutylammonium bromide, 18-crown ether-6, and dibutyl phthalate. The activated catalyst is then added to initiate a catalytic hydrogenation reaction. After the reaction, the reaction solution is cooled and filtered. The resulting solid is mixed with a preheated dilute sulfuric acid solution and stirred to form a slurry. The mixture is then filtered, and the filtrate is neutralized and filtered again. The collected filtrate is concentrated and crystallized. The crystallized precipitate is washed and dried to obtain trans-4-aminocyclohexylacetic acid. The method provided by this invention has high reaction efficiency, mild conditions, and is suitable for industrial production. It yields high product purity and reliability. Furthermore, the analytical method provided by this invention is accurate and reliable.

The present application relates to the technical field of feed processing, and particularly relates to a preparation method of Maotai-flavor distiller's grains fermented feed, which comprises the following steps: drying treatment based on the moisture content of Maotai-flavor distiller's grains to obtain basic distiller's grains; determining the strain ratio of brewer's yeast, bacillus subtilis and aspergillus niger based on the tannin content of the basic distiller's grains to obtain a compound fermentation inoculant; inoculating and then fermenting; determining state evaluation parameters based on the total polyphenol accumulation rate, the dissolved oxygen consumption rate and the microbial activity index during the fermentation process, and performing qualified evaluation, and dynamically adjusting when unqualified; determining the fermentation end point based on the tannin degradation rate and the total polyphenol accumulation rate; and mixing the fermented distiller's grains with the basic feed at a mass ratio of 1% after low-temperature drying of the fermented distiller's grains. The present application realizes three-layer control of raw material evaluation, process control and end point determination, significantly improves the stability and content of functional active ingredients in the product, reduces the tannin and safety risk, and has a good intestinal health improvement effect on animals.

This invention provides a bisphenol A anion regeneration system, comprising an anion bed. The inlet pipes of the anion bed are connected to a demineralized water inlet pipe, a phenol inlet pipe, and a caustic soda inlet pipe. The anion bed is equipped with a top vent pipe and a bottom vent pipe, and a reverse flow pipe connects the inlet pipe and the bottom vent pipe. The upper inlet of the bottom vent pipe is higher than the upper surface of the anion bed. The advantages of this invention are: it extends the service life of the expensive anion catalyst, and through cyclic regeneration, avoids the huge cost of frequent catalyst replacement. The phenol solution used in the regeneration process can be recycled, and the waste alkali solution can be centrally treated or partially recovered, further reducing material consumption and waste disposal costs. Furthermore, during the regeneration operation, the material is introduced into the crystallization system through valve switching, avoiding shutdown of the entire production system, ensuring production continuity, and improving equipment utilization and overall economic efficiency.

This invention relates to the field of medical device technology, and discloses a 3D-printed humeral prosthesis that preserves the shoulder joint. The prosthesis includes a prosthesis body, with a proximal end for connecting to the humeral head of the patient's own shoulder joint. The proximal end of the prosthesis body is ball-shaped, and a connection area is provided at the top of the proximal end, with multiple nail-like protrusions. The proximal end of the prosthesis body also has through-holes perpendicular to the connection area. The ball-shaped proximal end of the prosthesis body of this invention, with its connection area, connects to the humeral head of the patient's own shoulder joint, preserving the patient's own shoulder joint, maintaining the patient's natural range of motion and function, reducing damage to surrounding tissues, facilitating more natural movement and recovery of daily activities, and improving postoperative function. The ball-shaped connection has a large contact area, and the nail-like protrusion structure in the connection area of ​​the proximal end of the prosthesis body further increases the contact area, making the connection more stable; this contributes to the initial and long-term stability of the prosthesis implantation.

This application discloses a method for catalytic wet oxidation treatment of sodium thiosulfate. The method includes: contacting a raw material containing sodium thiosulfate with a catalyst and an oxidant to undergo an oxidation reaction to obtain sodium sulfate; wherein the catalyst includes a support and an active component; the support is activated carbon; the active component includes a transition metal active element; the transition metal active element is selected from one to three of Mn, Fe, Co, Ni, and Cu. This method can achieve oxidation of more than 60% of 10000 mg / L thiosulfate, and the catalyst activity can be restored by water washing and regeneration after a decrease. The catalyst morphology remains good after 30 days of continuous operation.

This invention discloses a combined acupuncture and medication method for treating cervicogenic vertigo, belonging to the field of traditional Chinese medicine clinical treatment technology. The method comprises two parts: oral administration of a specific herbal composition and standardized acupuncture knife therapy. The herbal composition consists of Pinellia ternata, Gastrodia elata, Uncaria rhynchophylla, Poria cocos, Citrus reticulata peel, stir-fried Atractylodes macrocephala, Zingiber officinale, Haliotis diversicolor, Pueraria lobata, Cinnamomum cassia, Corydalis yanhusuo, Ziziphus jujuba, Lycopodium clavatum, Spatholobus suberectus, Pheretima aspergillum, Chaenomeles speciosa, and Paeonia lactiflora in specific dosages, which are then sterilized, preserved, dried, pulverized, and sieved to form capsules for oral administration. The acupuncture knife therapy targets Baihui (GV20), the midpoint of the neck, the left point of the neck, the right point of the neck, and the articular process points. This invention has the effects of resolving phlegm and relieving wind, strengthening the spleen and removing dampness, calming liver yang, relieving exterior cold, and relaxing tendons and vessels, far exceeding the effects of Western medicine treatment alone. It is most effective for the phlegm-dampness obstruction type. It has the advantages of being safe with no side effects, treating both the symptoms and the root cause, having a low recurrence rate, a high degree of standardization, and a wide range of applications. It improves the pathological state of cervicogenic vertigo from the root, embodying the concept of preventive medicine in traditional Chinese medicine, and has significant clinical application value.