61results about How to "Achieve the purpose of refinement" patented technology

The invention discloses a method for increasing color value of capsicum haematochrome. The method is as below: first dissolving capsicum haematochrome with acetone; adding a sodium hydroxide aqueous solution for saponification; then removing the slag and concentrating; dissolving the capsicum haematochrome obtained from concentration with 6# solvent naphtha; washing the mixture with brine; and finally concentrating to obtain refined capsicum haematochrome. The method first utilizes saponification to remove residual grease in capsicum haematochrome, then employs brine washing to remove other impurities in the capsicum haematochrome, so as to refine the capsicum haematochrome and increase purity and color interval of the capsicum haematochrome. The method can thoroughly remove impurity components in the capsicum haematochrome, so as to obviously improve quality of the capsicum haematochrome. After long term dispose, the capsicum haematochrome does not occur micelle deposition; and capsicum haematochrome stored at low temperature still has good fluidity, and has color value increased by 2-3 times and color value yield higher than 95%.

A method for refining poor fuel-oil making use of double solvents belongs to petrochemical technical sphere. The technical project comprising in the poor fuel-oil sample which will be treated, adding double solvents of 0.07 % relative quantity of the fuel-oil sample, stirring for 30 minutes at a normal temperature, stewing and depositing for 2 hours, then discharging the minute quantity of black settled materials at the bottom, obtaining fraction of fuel-oil which is clear, transparent and is of no objectionable odour with color comparison of 2.0; the component of the double solvents is furfural : carbinol : hexamethylene: diamine : hypochlorite = 70 : 15 : 10 : 5. The invention solves the purification problem of the poor fuel-oil produced in the processing procedures of waste plastics, scrap rubber and waste lubricating oil. The invention is of simple process and device, is of low cost, at the same time, is of small fuel-oil waste and high extraction rate, which not only is useful for environmental protection, but also has solves the problem of deficiency fuel in some degree.

The invention relates to a method and system for constructing an expression recognition model, and relates to the field of data processing. The method includes S1: acquiring a source image and performing preprocessing to obtain a preprocessed image; S2: constructing a deep learning model according to the source image and the preprocessing image, introducing migration learning to perform weight training on the deep learning model, and obtaining Image pre-training model; S3: Obtain a fine-tuning model according to the image pre-training model; S4: Use the fine-tuning model to perform fine-tuning model training on the preprocessed image to obtain an expression recognition model. This solution solves how to improve the expression recognition model. The technical problem of accuracy is applicable to expression recognition.

The present invention provides a production process of medlar essential oil and edible meal powder. The production process comprises: pressing medlar or seed thereof into a billet, carrying out subcritical extraction, carrying out solid-liquid separation after the extraction to obtain a solid wet meal and a mixed solution, carrying out desorption evaporation on the mixed solution to remove the extractant so as to obtain the crude oil, further carrying out molecular distillation refining on the crude oil to obtain the medlar functional essential oil, completely removing the residual solvent from the solid wet meal, carrying out low-temperature drying, puffing, milling, and powder making, and screening with a 100-180 mesh sieve so as to obtain the medlar edible meal powder. With the method of the present invention, the complex processes that the chemical and physical methods are used to perform deacidification, decolorizing, deodorization and the like in the traditional grease refining are eliminated, the process is short, the efficiency is high, the acid value of the essential oil after the molecule distillation is 0.21-0.23 mg / g, and the essential oil meets the national grade-one edible oil standard. In addition, the oil-extracted meal powder obtained through the method of the present invention still contains all the nutrition and active components and pharmacological functions of the medlar or seeds excluding the oil, and is the high-quality additive for preparing the food or health product.