3 results about "Sodium phenylacetate" patented technology

The invention relates to the technical field of preparation of sodium phenylacetate, and provides a preparation method of high-clarity sodium phenylacetate, which comprises the following steps: dissolving a sodium phenylacetate crude product, decolorizing, concentrating, crystallizing, separating and drying to obtain the high-clarity sodium phenylacetate, a crystallization solvent adopted during crystallization is composed of water and an organic solvent; the water accounts for 0.2%-0.8% of the volume of the devitrification solvent. Through the technical scheme, the problems of low clarity, low yield and low purity of sodium phenylacetate in the prior art are solved.

A process for producing a nitrogen-doped peony-shaped molybdenum oxide, comprising the following steps: (1) adding a regulator to a molybdenum-containing solution for reacting, concentrating and thermally treating to obtain a peony-shaped molybdenum oxide; and (2) dissolving the peony-shaped molybdenum oxide in a conditioning agent and adding an amine source for standing, centrifuging, washing, and heat-treating, thereby obtaining the nitrogen-doped peony-shaped molybdenum oxide; wherein the regulator is at least one of the following: nitric acid, ammonium nitrate, sodium persulfate, ammonium persulfate, concentrated sulfuric acid, H2O2, ozone, sodium hypochlorite, wherein in step (2), the conditioning agent is at least one of the following: sodium acetate, ammonium acetate, sodium formate, diaminoethane, sodium oxalate, ammonium benzoate, sodium phenylacetate, sodium propionate, sodium tartrate, sodium citrate, ammonium citrate; and wherein in step (2) the amine source is at least one of the following: aniline, dimethylamine, trimethylamine, benzylamine, phenethylamine, ethylamine, diethylamine, propylamine, phenylenediamine, xylylenediamine, amphetamine.

This invention provides a continuous acidification and separation device for sodium phenylacetate, belonging to the field of chemical equipment technology. It includes: a feeding unit, a separation unit, and a receiving unit connected sequentially by pipelines; the feeding unit includes a sulfuric acid storage tank, a sodium phenylacetate storage tank, and a first pipeline mixer, with the sulfuric acid storage tank and the sodium phenylacetate storage tank respectively connected to the first pipeline mixer via pipelines; the separation unit includes a separation tower, with an oil-water coalescing membrane assembly installed at the feed end of the separation tower; the first pipeline mixer is connected to the oil-water coalescing membrane assembly via pipelines; the receiving unit includes an oil phase receiving vessel and an aqueous phase receiving vessel; the oil phase pipeline at the top of the separation tower is connected to the oil phase receiving vessel, and the aqueous phase pipeline at the bottom of the separation tower is connected to the aqueous phase receiving vessel. This invention achieves effective separation of the phenylacetic acid oil phase and the sodium sulfate aqueous phase through the oil-water coalescing membrane assembly, solving the problem of unclear oil-water interface during the continuous acidification of sodium phenylacetate, which leads to low quality of the phenylacetic acid product.