44 results about "Phenacetin" patented technology

A medicine for treating toothache, dental marrow inflammation and periodontitis is prepared from VB1, VC, aminopyrine, phenacetin, coffeine, austrominal, prednisone acetate, and safflower.

The present invention aims at removing the deficiencies and defects in the existing water treatment technology of trace amounts of phenacetin and other medicines and personal care products (PPCPs) in the water, and proposes a catalyst for water purification containing PPCPs such as phenacetin Preparation. The magnetic nano-manganese iron oxyhydroxide catalyst uses manganese salt and ferrite as the key active components, and integrates Fe x (OH) y , Mn x (OH) y The surface characteristics of binary metal oxyhydroxides not only have a larger specific surface area, but also a higher surface hydroxyl density is another important factor that provides their catalytic activity. More importantly, the magnetic nano-manganese iron oxyhydroxide is magnetic, and a magnetic field can be used to separate the catalyst in the powder state from the water phase. The catalyst can be applied to ozone catalytic oxidation technology to effectively improve the removal effect of PPCPs such as phenacetin in the water body, and play a decontamination effect on phenacetin to obtain better quality and stable effluent. Catalysts with broad application prospects.

The invention discloses a product for deodorizing a human body and objects. The product is prepared from the following materials in parts by weight: 100-115 parts of acetylsalicylic acid, 70-80 parts of phenacetin, 16-18 parts of caffeine, 90-110 parts of gypsum powder, 90-110 parts of sorbitol, 0.1-0.5 part of sodium carboxymethyl cellulose (also named as CMC), 2-3 parts of borneol, 9-11 parts of mint and 3-5 parts of edible marennin. The materials are crushed into 300 meshes and uniformly mixed to form a powdered preparation. When in use, the product is mized with water to obtain paste. The product disclosed by the invention has the following positive effects: by brushing teeth with the product once a day, halitosis can be overcome and oral inflammation can be treated further; when used for removing foot odor, the product is only needed to be applied once to twice, the feet can be kept away from odor within 8-18 months; when used for removing body odor, the product can keep the body odorless for over 10 days after being applied once; when used for removing object odor, the product can completely remove odor from objects after being applied once; when used for treating dermatophytosis, the product stays for 24 hours and can prevent the replase of dermatophytosis within 1-3 years after being used once.

The invention discloses a preparation and crystallization method of phenacetin, and belongs to the field of chemical industry. According to the preparation and crystallization method, p-phenetidine is reacted with an acid in water so as to obtain a p-phenetidine salt; the p-phenetidine salt is reacted with an anhydride in a buffer solution system; after reaction, a mixed solution of water and an organic solvent is added into an obtained reaction solution, and phenacetin crystals are obtained via stirring. Product yield is high; two-step reaction total yield is higher than 92%; the obtained products are crystalline solids; stability is high; purity is high, and is higher than 99%; reaction time is short; reaction conditions are mild; product separation operation is simple; direct filtering separation can be carried out after reaction; and batch production period is shortened greatly.