45 results about "4-methoxybenzophenone" patented technology

Disclosed is a sunscreen cosmetic that does not contain diethylamino hydroxybenzoyl hexyl benzoate, absorbs a wide range of wavelengths of ultraviolet rays across the UVA and UVB regions, and also does not cause staining (dyeing) through secondary adhesion to clothing. The sunscreen cosmetic is characterized by containing: 2-hydrdoxy-4-methoxybenzophenone, 2-ethylhexyl p-methoxycinnamate, octocrylene, a volatile hydrocarbon oil, and zinc oxide and / or titanium oxide that has undergone hydrophobizing treatment other than with a fatty acid.

The invention discloses a natural enemy attractant for controlling the population quantity of rice planthoppers. The natural enemy attractant comprises the following components: linalool, cis-3-hexenoicaldehyde, cis-acetate-3-hexenyl ester, liquid paraffin, 2,6-di-tert-butyl-p-cresol, 2-hydroxyl-4-methoxybenzophenone at a weight ratio of (0.01-0.10): (0.01-0.10): (0.01-0.10): (0.2-2): (0.01-0.1):(0.01-0.1). The natural enemy attractant disclosed by the invention attracts the female adults of anagrus nilaparvatae which is an important natural enemy of rice planthoppers in an egg stage, thus reducing the population quantity of rice planthoppers and reducing harm to the rice plants. The attractant is low in cost, high in efficiency, friendly to environment, safe to people and livestock and the like. The attractant for anagrus nilaparvatae which is the natural enemy of rice planthoppers has a broad industrial prospect, and due to the simple preparation method, is particularly suitable for the harmless production of rice, and has high economic, social and ecological benefits.

The invention provides a method for producing benzophenone ultraviolet absorbent 2-hydroxyl-4-methoxybenzophenone-5-sulfonic acid (BP-4). The invention uses a BP-3 refined product and chlorsulfonic acid to synthesize and prepare the BP-4 in methyl carbonate, and is characterized in that the method comprises the following steps: adding BP-3 refined product, chlorsulfonic acid, methyl carbonate andwater according to a production ratio into a crude product reaction kettle, controlling the temperature to be 23-38 DEG C, keeping temperature and reacting for 18-20 hours to obtain a BP-4 crude product; dissolving the BP-4 crude product in the mixed solvent of the methyl carbonate and a latent solvent, recrystallizing, separating solid phase from liquid phase to obtain the solid phase BP-4 refined product; refining and drying the BP-4 refined product to obtain a finished product. The invention reduces the harmful solvent residue of the product, decreases production cost, and has notable economic benefit and environmental benefit. The product yield reaches 92% and the product purity is increased to 99.5% from 99%.

The invention relates to an advanced water treatment technique for pollution removal through heterogeneous catalytic ozonation. Directed at the disadvantage that a conventional powdery catalyst is unfavorable for realizing separation and inactivation in a water phase, an assembly method for a novel manganese-cobalt complex oxide nanoparticle catalyst-loaded ceramic membrane is provided. The assembly method aims to combine heterogeneous ozonation with a ceramic membrane filtration technique, and utilizes a ceramic membrane structure and active components (MnO2 and Co3O4) on a catalytic layer to catalyze ozone so as to generate -OH with high oxidation capacity, wherein organic compounds can realize reinforced removal of pharmaceutical and personal care products (PPCPs) like 2-hydroxyl-4-methoxybenzophenone in water through direct reaction with molecular ozone or reaction with -OH generated by ozone decomposition; meanwhile, ozone can react with humic acid and natural organic matters (NOMs) in the water, so the formation of membrane pollution is effectively controlled. The manganese-cobalt complex oxide nanoparticles are loaded on the surface of the ceramic membrane, so separation of the catalyst from the water is realized, and a novel method for cleaning and repeated use of the catalyst is provided.