133 results about "Winterization" patented technology

The invention relates to a method for extracting high-quality soybean germ oil by using subcritical butane and relates to the field of grain fine and deep processing. The method comprises: cutting purified soybean germs into slices which are 0.3 to 0.4 millimeters thick; placing the slices in an extraction kettle; performing 1 to 5 times of countercurrent leaching of the cut soybean germs by using liquefied butane as a solvent, wherein the extraction time is 10 to 120 minutes, the material to liquid ratio is 1:(1-6), the extraction temperature is 10 to 90 DEG C, and the extraction pressure is0.2 to 0.1MPa; delivering extracted mixed oil and wet dregs into an evaporation system and desolventizing under reduced pressure; and subjecting the obtained soybean germ crude oil to normal winterization, alkali refining and decolorization processes to obtain a soybean germ oil product with high beta-sitosterol content. In the invention, the soybean germ oil is extracted by using subcritical butane, the manufacturing cost of equipment is reduced considerably, the operation cost is low, the production period is shorter, the yield is high, and the method represents a low-consumption and environment-friendly practical technique for producing soybean germ oil.

The invention discloses a production method for linseed oil. The production method comprises the processing steps as follows: (1) extracting, namely extracting crude linseed oil from a linseed cake subjected to squeezing and oil extraction by using a subcritical fluid; (2) degumming and deacidifying, namely degumming the crude linseed oil at the temperature of 40 DEG C by using citric acid, deacidifying by using sodium hydroxide, and separating to obtain alkali refining oil; (3) washing, namely heating the alkali refining oil to be 80-85 DEG C, and adding hot water of 90-95 DEG C for washing; (4) decolorizing and dewaxing, namely heating the washed oil to be 90 DEG C in a vacuum state under a negative pressure of 0.06-0.07 MPa, adding activated clay and active carbon, stirring for decolorizing, gradually cooling the oil in the stirring process for winterization, and filtering; and (5) deodorizing, namely deodorizing the winterized oil under the condition that the temperature is 150-155 DEG C and the vacuum degree is less than 200 Pa, and obtaining the linseed oil. The production method has the characteristics of simple process, convenience for operation, high extraction efficiency, low solvent residue content and low loss of product nutrient content.

This invention permits biodiesel (Fatty Acid Methyl Esters—FAMES) fuel and/or fuel blends to be used in cold weather climates without crystallization/precipitation of solids which plug fuel lines. The high melting point components are removed by physical separation from the biodiesel. Crystallization or distillation are used to separate the high melting temperature components. The low melting temperature components are used for blending with petroleum diesel with reduced or no winterization; low melting temperature components are used as a biodiesel with reduced or no winterization; low melting temperature components are blended into aviation jet fuel; or low melting temperature components are used as aviation jet fuel. The high melting temperature components are blended with petroleum diesel for temperate and/or hot weather climates.

The invention discloses a method for preparing cannabidiol-containing hemp extract. The method comprises the following steps: taking mature industrial hemp seeds, drying the hemp seeds, removing impurities, and crushing the hemp seeds for later use; carrying out extraction on the crushed hemp seeds with ethanol with the concentration being 95-100% (V/V) according to a solid-liquid ratio of 1:5 to1:20; filtering the obtained extract, and carrying out reduced pressure concentration to obtain industrial hemp seed extract; dissolving the obtained hemp seed extract in ethanol, and carrying out low-temperature winterization; centrifuging the obtained winterized suspension by using a centrifuge or a filtration technique; decolorizing a supernatant obtained after the centrifugation by using activated carbon, and filtering the supernatant; and carrying out rotary evaporation on a filtrate obtained after the filtration to obtain the cannabidiol-containing hemp extract. The product obtained in the invention has the advantages of high CBD content, good color and good physiological characteristics. The method has the advantages of simple process, easiness in industrial application, and promotion of the development and utilization of high added value products of hemp.

The invention relates to a method for refining edible flaxseed oil. The method for refining pressing flaxseed oil through solid adsorption and vacuum filtration is characterized by comprising the following steps of: 1) adsorption: contacting 100 weight parts of pressing flaxseed oil with 0.5 to 10 weight parts of kieselguhr adsorbent calcined by a flux at the temperature of between 30 and 50 DEG C for 30 minutes or more; 2) winterization: cooling to the temperature of between 5 and 10 DEG C, freezing for not less than 3 hours, and filtering to remove solids; 3) vacuum filtration: at the temperature of between 50 and 55 DEG C, performing vacuum filtration on the flaxseed oil of which the solids are removed in an active alumina/silicon oxide filled vacuum filtering machine to obtain the refined clean flaxseed oil; and 4) storage under the protection of inert gas: filling the inert gas into the refined clean flaxseed oil for protective storage. By the method, harmful substances can be removed from the flaxseed oil, the quality grade of the flaxseed oil is improved, and the flavor of the oil cannot be influenced. The method has a simple and effective process and is convenient to implement and apply industrially.

The invention relates to a new technology for processing thick-aroma tea oil, which comprises the steps of feeding the refined tea oil into a winterization tank by a pump, and reducing the temperature from normal temperature to 1-3 DEG C; preserving heat for 60-90 hours; filtering the defatted refined tea oil, and heating to 60 DEG C; stir-frying tea siftings in an oil pressing process in a wok at 60-90 DEG C; feeding the heated tea oil and the stir-fried tea siftings into a soaking device, and soaking; then separating the oil from the tea siftings to obtain the thick-aroma tea oil. By adopting the new technology provided by the invention, the indexes of the obtained thick-aroma tea oil reach the national standards for edible oil while the unique aroma of the tea oil is maintained, thus the new technology is a new production technology with low cost and high benefits.

The invention discloses a production method of edible rice bran oil. The production method comprises the following steps of: firstly, heating four-stage standard rice bran oil by a preheater and charging into a separator, evenly distributing the materials under high vacuum degree, due to the boiling point difference of various substances, separating light components of raw material oil in an evaporating way by a pressure reducing technology, heating heavy components, charging into a purifier, quickly evaporating, separating aflatoxin and pesticide residue in an evaporating way, filtering the treated rice bran oil, contacting with protective gas in a stripping tower, and discharging in a separating way, wherein the acid value of the rice bran oil discharged out of the tower bottom achieves the standard of first-stage rice bran oil; and dewaxing in a winterization way to obtain the first-stage rice bran oil. According to the production method, the first-stage rice bran oil product with high oryzanol content can be produced. The whole technical process separates by a pure physical method, so that nutrition components can not be damaged; the production method does not need adding of any annexing agents, so that the safety of the product can be guaranteed; and the production method does not generate any waste gas, sewage or solid waste.

The invention discloses a method of extracting high-purity cannabidiol from industrial hemp. The method includes: pretreatment of raw materials, subcritical extraction, winterization, thermal treatment, short-course molecular distillation and crystallization refining. THC content in CBD prepared by the method meets related legal provisions, CBD content is greater than 98.0%, purity is up to higherthan 99.8%, individual impurity is lower than 0.1%, total impurity is lower than 0.2%, and THC is absent. Compared with existing extraction methods, the method has the advantages of being efficient,energy-saving, environment-friendly and high in product purity.

An appropriate processing method for squeezing camellia oleosa seed oil belongs to the technical field of camellia oleosa seed processing methods and comprises the following process steps: taking fresh and mature camellia oleosa seeds with impurity content smaller than 0.5%; feeding the camellia oleosa seeds into a rotating oven to be fried, wherein the seed frying temperature ranges from 140-150 DEG C, and the seed frying time ranges from 30-40 minutes; spraying water on the camellia oleosa seeds while the camellia oleosa seeds are hot, enabling the moisture content of the camellia oleosa seeds to be increased to 4%-6%; feeding the camellia oleosa seeds into an oil press for oil squeezing to obtain squeezed crude oil of the camellia oleosa seeds; filtering the crude oil in a fine mode; directly feeding the camellia oleosa seed oil into a winterization tank, and conducting winterization for 24 hours at the temperature of 2-5 DG C; conducting polishing filtration on the camellia oleosa seed oil, inspecting the camellia oleosa seed oil, and obtaining a finished product. The appropriate processing method for squeezing the camellia oleosa seed oil is convenient to operate, the steps are simple, no chemical products need to be input, the yield is improved, nutrition components possibly lost in the refining process is further reserved, and meanwhile the highly flavored type camellia oleosa seed oil with high quality further can be obtained.

The invention provides a grey-forecasting-model-based method for predicting weak fault degrees of an autonomous underwater vehicle propeller. In a grey background value construction stage, the proximate integral of an accumulative generation sequence is calculated to serve as a grey background value; in a winterization equation solving stage, through a difference value between a predicted original-sequence value and an actual original-sequence value, a point with the minimum predictive residual is determined, and an original sequence value corresponding to the point with the minimum predictive residual serves as an initial value of a winterization equation solution; in a predicted sequence construction stage, on the basis of a residual sequence between a predicted sequence and an original sequence, secondary prediction is conducted, and on the basis of a residual sequence obtained by the secondary prediction, the predicted sequence of the original sequence is amended to make a prediction result adjustable. By the adoption of the grey-forecasting-model-based method for predicting the weak fault degrees of the autonomous underwater vehicle propeller, the problem is solved that prediction errors are relatively large when the weak fault degrees of the AUV propeller are predicted, and a grey background value construction method, winterization equation solving method and predicted sequence construction method of a traditional grey method are improved separately.

The invention relates to a preparation method and application of medical tea oil. The preparation method comprises the following steps: (1) performing refined extraction; (2) deacidifying, namely, agitating and heating tea essential oil, dissolving KOH with soft water to obtain an alkaline solution after the oil temperature raises to 70-75 DEG C, rapidly and uniformly spraying into soil, fully mixing, stopping agitating after nigre particles appear, heating to 80 DEG C, standing at the constant temperature for 12 hours to completely precipitate, transferring upper clear oil to a washing pot, heating the oil to 85 DEG C, adding hot water to wash, standing at the constant temperature for 1 hour, separating out the upper clear oil, and then dewatering and drying under a vacuum condition to obtain the deacidified oil; (3) discoloring; (4) deodorizing; and (5) fractionating. Compared with the prior art, the method focuses on the selection of technological conditions; the tea oil is heated to be 70 to 75 DEG C during deacidifying, then the alkaline solution is added, and the tea oil is precipitated at the constant temperature of 80 DEG C. The medical tea oil prepared under the technological conditions has the advantages that the fractionating is carried out at 19 to 21 DEG C, and the low-temperature winterization can be saved.

The invention discloses a preparation method of high-quality edible tea oil. The preparation method comprises the steps of vacuum freeze drying, dehusking, low-temperature squeezing, alkali refining, degumming, deacidifying, decoloring, purification and winterization. The method disclosed by the invention can retain effectively active substances in the tea oil and also cull useless or harmful impurities; the acid value of the tea oil is less than or equal to 0.1 mgKOH/g, the VE value is greater than 35 (mg/100g), the monounsaturated fatty acid content is greater than or equal to 70 percent, and the unsaturated fatty acid content is greater than or equal to 15 percent; an oil product has a shallow color, and all the other indexes meet the national level-I edible tea oil standard; furthermore, the mellow fragrance of the tea oil can be retained; the tea oil is nutritional and healthy edible oil and is well received by consumers.

The present invention is skimmer plug for winterizing a pool. The skimmer plug inserts and grips into the fluid opening, where there is fluid passage from the pool to the skimmer housing and filter assembly. In this manner, the surface of the skimmer plug when installed is slightly raised from the factory skimmer faceplate or skimmer opening by only the thickness of the skimmer plug's outer plate. The fasteners which secure the factory skimmer faceplate and the skimmer housing to the pool sidewall still remain accessible for adjustment by the pool owner or pool service personnel while the skimmer plug is securely in place.

The invention discloses a preparation method of camellia oil used for cosmetics. The preparation method comprises the following steps: carrying out vacuum freeze drying, unshelling, low-temperature squeezing, alkali refining, degumming, deacidification, decolorization, winterization and the like. The method can be used to keep the activity of target ingredients in the camellia oil and also can be used to remove useless or harmful impurities, wherein the acid value of the camellia oil is less than or equal to 0.1mgKOH/g, the peroxide value of the camellia oil is less than or equal to 0.3mmoL/kg, the VE (Vitamin E) value of the camellia oil is greater than or equal to 28 (mg/100g), the yellow value of the camellia oil is less than or equal to 0.4, and the red value of the camellia oil is less than or equal to 0.1. The camellia oil is near colorless, flavourless and smokeless and is not sour; meanwhile, the preparation method has the advantages of simple preparation technology, low energy consumption, small environment pollution, short production period, low cost and the like, and can be widely applied in the field of high-quality cosmetics.