3 results about "Inorganic Chemical" patented technology

The invention discloses a cultivation method for promoting high yield and stable yield of tartary buckwheat, belonging to the technical field of crop cultivation. The specific steps involved in the technology include: selection of plots, land preparation, seed treatment, seed sowing, field management and harvesting processing. The invention standardizes and refines the planting technology of tartary buckwheat, which is conducive to exploiting the tartary buckwheat development scale and market prospect; the beneficial effects of the cultivation method for promoting high yield and stable yield of tartary buckwheat comprise that the characteristics of its cultivation techniques are mainly organic fertilizers in farms, supplemented by inorganic chemical fertilizers. The soaking method is mainly immersed in warm water, supplemented with ammonium molybdate solution and gibberellin water, which can promote the growth and development of tartary buckwheat seeds with scientific and reasonable technology, increase production as well as farmers' income.

The invention discloses an iron support with adjustable height for inorganic chemical experimental teaching. The iron support comprises a fixed column, a fixed bottom plate and a reagent bottle fixingframe; a heater is arranged on the upper end of the fixed bottom plate, a fixed table is arranged on the upper end of the fixed column, a fixing frame is fixed at the right side of the fixed table, afixed support plate is fixed at the lower end of the fixed frame, a cooler is arranged at the upper end of the left side of the fixed support plate, a longitudinal limiting plate is arranged at the right side of the fixed column, a reagent bottle fixing clamp is fixed at the right end of the reagent bottle fixing frame, and the left side of the reagent bottle fixing clamp is fixed on a telescopicouter rod; a telescopic inner rod is inserted into the left side of the telescopic outer rod, the left side of the telescopic inner rod is fixed on the limiting plate, and a fixing clamp is fixed onthe left side of the limiting plate through a connecting rod. The iron support with adjustable height for inorganic chemical experimental teaching disclosed by the invention is direct in teaching, good in heating and cooling effect.

The invention discloses a method for preparing rutile type titanium dioxide powder from ammonium tetrafluorooxytitanate. The invention discloses a preparation method of a titanium dioxide photocatalyst, which belongs to the technical field of inorganic chemical industry, and comprises the following steps: S1, hydrolyzing (NH4) 2TiOF4 in strong ammonia water, filtering the hydrolyzed slurry to obtain metatitanic acid precipitate mixed with ammonia water, taking the metatitanic acid precipitate as a rutile type TiO2 precursor, concentrating the filtrate, and recovering ammonia in the concentrated filtrate; S2, adding zinc oxide into the metatitanic acid precipitate mingled with the ammonia water, and uniformly stirring and mixing the mixture; S3, carrying out first-stage calcination on the metatitanic acid precipitate mixed with zinc oxide at a set temperature to remove ammonia water and part of crystal water in the metatitanic acid precipitate; and S4, carrying out second-stage calcination transformation on the first-stage calcination product at a preset temperature to prepare the rutile type titanium dioxide powder. According to the method, the technical problems of ammonium removal, fluorine removal and calcination transformation are effectively solved; the method is reasonable in technological process design and simple to operate, and reagents can be recycled.