92results about How to "Reduce color value" patented technology

The invention relates to a method for continuously extracting functional components of chlorella vulgaris, which comprises the steps of enriching the chlorella vulgaris through the membrane separation technology, obtaining concentrated slurry of the chlorella vulgaris, adding a proper enzyme in a liquid phase system for wall-breaking, and using a solvent for extracting chlorophyll from chlorella vulgaris solution after wall-breaking, thereby being capable of obtaining a functional pigment product and reducing the color value of follow-up products; and firstly carrying out enzymatic hydrolysis on a water phase of the chlorella vulgaris after decoloring, then using the solvent for extracting functional grease, extracting active polysaccharides from the obtained degreased chlorella vulgaris by using the acid method, and then drying the other parts for obtaining crude proteins of the chlorella vulgaris. The main products comprise the chlorophyll, the active polysaccharides of the chlorella vulgaris, the functional grease of the chlorella vulgaris, the proteins of the chlorella vulgaris and the like, and the method optimizes the process on the basis of ensuring the activity of the functional components of the chlorella vulgaris, thereby obtaining high yield and reducing production cost.

The invention discloses a floating method for A-wash remelting brown granulated sugar, in the method, A-wash is added while remelting brown granulated sugar to enable the purity of mixed syrup to reach or near the purity of rough syrup, and then the mixed syrup is treated by the syrup floating method. Not only the product quality is guaranteed, the color value is lowered and reducing sugar, color elements and impurities are removed, but also the back boiling amount of low purity materials is increased, the rearward shift of the materials is reduced, the yield and the purity of waste molasses are effectively lowered to achieve the purposes of improving the yield of white granulated sugar, increasing the product recovery and improving the economic benefits of the sugar factories.

The invention discloses a membrane technology-based refined sugar clear-syrup impurity removal and decoloring technology. The technology comprises the following steps of carrying out press filtration on syrup to obtain clear syrup, before evaporation, feeding the clear syrup to a microfiltration device, carrying out microfiltration on the clear syrup by a microfiltration device to obtain a microfiltred concentrate liquid and a microfiltred penetrating liquid, removing the microfiltred concentrate liquid, collecting the microfiltred penetrating liquid, feeding the microfiltred penetrating liquid into a ultrafiltration device, carrying out further condensation treatment on the primary ultrafiltration concentrate liquid, carrying out sterilization to obtain a sugar liquid, and feeding the last ultrafiltration concentrate liquid into follow-up processes of sugar refining. The technology does not produce a waste liquid, is free of a chemical reagent, has no damage to the human body, improves syrup purity, reduces syrup turbidity and is conducive to crystallization.

The sucrose juice decolorizing process includes the following steps: low temperature phosphoric acid floating treatment of mixed juice in the purity of 78.19 AP and through preheating to 50 deg.c, adding phosphoric acid mixture, neutralizing with lime milk, inflating, adding flocculant and separating out neutral slime, to obtain clear juice of purity raised to 80.66 AP and color value lowered to 92.66 st deg; pre-decolorizing the clear juice heated to 75 deg.c with diatomite in 1.0 wt% of sucrose for 60 min to lower the color number to 75.23 st deg; and decolorizing the clear juice with active carbon in 1.0 wt% of sucrose for 30 min to further lower the color number to 30.70 st deg. The process has the advantages of no production of alkali slime, short technological process, high purity of obtained sucrose juice and greatly lowered color number.

The invention discloses a production process of poly-crystal rocky candy. The production process comprises the following six steps: by taking first-grade white sugar as a raw material, dissolving the sugar, micro-filtering and clarifying, desalting and decolorizing by using ion exchange resin, concentrating in vacuum, charging seeds for crystallization, drying and packaging to produce the poly-crystal rocky candy. The poly-crystal rocky candy produced by the method disclosed by the invention is sweet and delicious in taste and white and transparent in color and luster; no sodium hydrosulfite is added for color protection during the overall production, so the product is environmental friendly and safe; the crystallization rate of the rocky candy is above 95%; the problem of low crystallization rate during production of the poly-crystal rocky candy for a long time is solved.

A clean process for preparing syrup by sulfurous acid method features that the mixture of fume and fermenting gas, is used as the aerating gas for lower cost, a carbon method for aerating gas is used, which features that the pH value in aerating tank is controlled by the quantity of added lime for preventing high-temp strong-alkaline environment, and the adding lime and aerating are performed in short time for fully saturation of syrup mixture and CO2 and preventing decomposition of reducing sugar. Its advantages are high clean effect and efficiency.

The invention aims to provide a stoving neutralizing auxiliary reaction tower. The stoving neutralizing auxiliary reaction tower comprises a cylindrical tank body, a stoving neutralizing reactor, a tube diffuser, a juice outlet pipe, a variable frequency juice outlet pump and a liquid level control device. By using the stoving neutralizing auxiliary reaction tower, the defects of the conventional neutralizing reaction device in a sugar refinery are overcome, and the problem of incomplete chemical reaction of the cane juice subjected to stoving liming is solved. The invention also provides a method for carrying out stoving neutralizing reaction by using the stoving neutralizing auxiliary reaction tower. According to the method, the stoving neutralizing auxiliary reaction tower is reasonably utilized, so that the standing time of the cane juice subjected to stoving liming is greatly increased, the uniformity of the cane juice is improved, the reaction of neutralized juice is more complete, and remarkable effects of improving the syrup purity, reducing the color value of white sugar and turbidity and lowering the sulfur dioxide residues are achieved.

The invention discloses a method for absorbing and activating carbon dioxide in boiler flue gas and application of the method. The method comprises the following steps of: 1, replacing cane juice through lime milk with the concentration of 8-15-degree Be for absorbing the carbon dioxide in boiler flue gas and generating by-products of a calcium carbonate solution in the decarbonization process in a two-stage spray packing absorption tower; 2, reacting phosphoric acid and one part of calcium carbonate solution, and generating a monocalcium phosphate solution and high-concentration carbon dioxide gas when the PH is controlled to be less than 3; 3, excessively injecting the high-concentration carbon dioxide gas into the calcium carbonate solution through an ejector, dissolving and activating the calcium carbonate into calcium bicarbonate solution, and controlling the PH to be less than 6; and 4, respectively filling the monocalcium phosphate solution and calcium bicarbonate solution generated in the decarburization and activation processes in the steps 2 and 3 into a storage box for later use. The method has the advantages of reducing the retention time of the cane juice in the carbon absorption process and saving the investment, along with high absorption rate and the like.

Disclosed is a process for producing a sugar, whereby any non-sugar component can be removed from a sugar solution with high efficiency and the color value of the sugar solution can be reduced. Specifically disclosed is a process for producing sugar, which is characterized by comprising: adding ethanol to a sugar solution produced by squeezing a plant; removing precipitates produced by the addition of ethanol from the solution; and crystallizing sugar from the sugar solution from which the precipitates have been removed.

The invention discloses a processing method of functional brown sugar rich in polyphenols. The processing method comprises following steps: sugarcane is juiced so as to obtain a raw material liquid, lime milk is added, and an obtained mixture is heated so as to obtain a heated raw material solution; a first-grade ceramic membrane is used for filtering so as to obtain a first grade membrane clear juice and a first grade membrane condensed juice; a second membrane is used for filtering so as to obtain a second membrane grade clear juice and a polyphenols-enriched second grade membrane condensed juice; and the polyphenols-enriched second grade membrane condensed juice is used for producing the functional brown sugar rich in polyphenols, wherein at least one or a plurality of ingredients selected from colla corii asini, red date, longan, Angelica sinensis, Radix Codonopsis, Chinese wolfberry, bulbus lilii, herba leonuri, and ginger are taken as functional ingredients, and are decocted with water so as to obtain a solution, or dried and smashed into powder, the polyphenols-enriched second grade membrane condensed juice is subjected to evaporation concentration and is mixed with the solution or the powder, and sugar boiling, graining, moulding, and packaging are carried out so as to obtain the functional brown sugar rich in polyphenols. According to the processing method, effective enrichment of polyphenols is realized, a plurality of functional ingredients which can be taken as both medicine and food are added, the content of polyphenols is 4 to 8 times higher than that of brown sugar obtained via traditional technology, and brown sugar quality and nutrient value are improved.

The invention discloses a sugar juice decoloring method. The method comprises the following steps: during a sugar making process, ClO2 is used for decoloring a sugar juice; the sugar juice refers to any one, two, three or four of a clear juice coming out of a clarification section, crude syrup or re-dissolution syrup coming out of an evaporation section, or massecuite coming out of a crystallization section; CIO2 is respectively added to any one, two, three, or four of the clear juice, the syrup or the messecuite; any one, two, three or four of the four sugar juices are respectively or simultaneously oxidized and declored; the amount of CIO2 added into the sugar juice is 0.0005 percent to 0.3 percent of the weight of the sugar juice; and the adding method is that CIO2 is directly added to a corresponding sugar juice, and the sugar juice is fully mixed and reacted with CIO2 during a flow and pumping process, so as to achieve the aim of oxidation and decoloration. The sugar juice decoloring method of the invention can effectively reduce the color value of the sugar juice, reduce the color value of a product sugar and the residue of sulfur, and simultaneously improve the purity and the quality of the sugar.

The invention relates to a process for the production of toluene diisocyanate, in which the crude toluenediamine obtained from the hydrogenation is purified and then phosgenated. The purification step reduces the total amount of cyclic ketones to less than 0.1% by weight, based on 100% by weight of the toluenediamine.

The invention discloses a method for rapidly preparing small peptide amino acids by microwave-assisted protein acid hydrolysis. The method comprises: in the microwave environment, performing hydrolysis on a mixed solution of a denatured protein raw material and hydrochloric acid and sulfurous acid, and performing centrifugation filtering, nanofiltration membrane deacidification and ultrafiltration separation to obtain small peptide amino acids with different molecular weight. The preparation method is mild in reaction conditions, short in production period, low in production cost and high in product recovery rate, realizes "three wastes (waste gas, waste water and industrial residue)" zero discharge, and is applicable to industrial production.

The invention relates to a device for fast sedimentation of filtered juice of a sugar refinery and a control method of the device. The device comprises a buffer tank, a degassing tank, a mixing tank and a fast filtered juice sedimentation vessel, the buffer tank is connected with the degassing tank through a flowmeter and a regulating valve, a stop valve is arranged between an outlet of the buffer tank and an inlet of the degassing tank, and the top of the buffer tank is provided with an overflow pipe connected with the degassing tank; the degassing tank is connected with the mixing tank prior to being connected with the fast filtered juice sedimentation vessel. According to the control method, by arrangement of the electromagnetic flowmeter, the electric regulating valve, a liquid level display instrument, the overflow pipe and the like, the opening of a filtered juice valve can be controlled and regulated automatically online according to the liquid level, so that the amount of the filtered juice entering the fast sedimentation vessel in the sugar making process is relatively stable and smooth and auxiliary materials are added stably so as to realize stable settlement separation; therefore, quality of products is improved, and cost is lowered.

In certain example embodiments, a coated article includes a carbon-doped zirconium based layer before heat treatment (HT). The coated article is heat treated sufficiently to cause the carbon-doped zirconium oxide and/or nitride based layer to result in a carbon-doped zirconium oxide based layer that is scratch resistant and/or chemically durable. The doping of the layer with carbon (C) has been found to improve wear resistance.

A sugar production clarifying production line comprises a mixed juice box, a horizontal screw-type centrifuge, a first heating device, a sulfur fumigating device, a second heating device, a multi-stage ceramic membrane ultrafiltration system, and a plate-frame filter press, which are connected in sequence. During the clarification process of mixed sugarcane juice, only a little amount of limestone and SO2 is added, so the sulfur content of finished sugar is very low, and moreover the sugar has the advantages of low color value, high purity, and low ash content, and is capable of meeting the requirements of high-end customers. Furthermore, during the sugarcane juice clarification process, a ceramic membrane is used to carry out ultrafiltration and clarification; because the membrane resistance due to the scales on the ceramic membrane is small, the membrane permeation flux is large when the ceramic membrane is used to filter sugarcane juice, moreover, the decay speed of membrane flux is slow, the high membrane flux can last for a long time, thus the membrane washing period is prolonged, and the membrane washing frequency is reduced.

The invention discloses a method for raising the yield of xylooligosaccharide and belongs to the fields of chemical engineering and food. The method comprises of treating corn straw as the raw material, firstly, sequentially conducting air drying and pulverization, conducting soaking treatment with water and ethyl alcohol for removing water soluble impurities and fat soluble impurities in the raw material, and then conducting lignin removal treatment through a sodium chlorite method; secondly, obtaining a xylan extracting solution through an alkaline extraction method, and after pH is adjusted to be neutral, conducting concentration for removing salt; finally, conducting depolymerization treatment on xylan through an enzymolysis method and an acidolysis method in sequence, and conducting centrifugation, activated carbon treatment and freeze-drying, so that a xylooligosaccharide product is obtained. The method has the following advantages that xylan liquid obtained through the method is subjected to a hydrolysis reaction, and the complex separating and drying steps in the preparation process are omitted; enzymolysis residues are subjected to acetic acid treatment at the high temperature, the yield of the xylooligosaccharide can be raised, and no excessive influence can be caused to the acidic and basic property of the product; the straw is utilized as the raw material, so that good economic benefits and ecological significance are achieved.

The invention relates to a production line of black sugar rich in polyphenol. Squeezing equipment, impurity removal and filtration equipment, a preliming cylinder, a tubular heat exchanger and a steam heater of the production line are sequentially connected, a lime milk storage cylinder is connected with the preliming cylinder, the outlet of the steam heater is connected with the inlet of a primary ceramic membrane, the concentrated solution outlet of the primary ceramic membrane is connected with the preliming cylinder by virtue of full charging equipment and a plate-and-frame filter press, and the clear solution outlet of the primary ceramic membrane is connected with the inlet of a secondary nanofiltration membrane; the concentrated solution outlet of the secondary nanofiltration membrane is connected with black sugar packaging equipment by virtue of vacuum evaporation concentration equipment, constant pressure concentration equipment, a nucleation box and a moulding die sequentially; and the clear solution outlet of the secondary nanofiltration membrane is connected with a white granulated sugar production line. The production line of the black sugar rich in polyphenol has the advantages that two stages of ceramic membranes with different membrane pore diameters are adopted for filtering sugarcane juice, concentrated juice filtered by two stages of membranes is adopted for producing the black sugar rich in polyphenol, a functional ingredient, namely polyphenol, in the concentrated juice obtained by virtue of the two stages of membranes is effectively enriched, enrichment efficiency is improved by 4-8 times compared with the traditional production technology, and quality and nutritional value of the black sugar are improved.

The invention provides a background color generation method and device, electronic equipment and a storage medium. The method comprises the steps: obtaining first theme color information of a target picture located in a target background region; converting the first theme color information into second theme color information in other color modes; determining first background color information of the target background region based on the second theme color information; and rendering the target background region based on the first background color information. According to the embodiment of the invention, the color mode of the theme color is converted to obtain at least two kinds of processed background color information, and the target background region is rendered based on the two kinds of background color information, so that the background color which keeps readability of characters in the target background region, is consistent with the theme color in color style and has color change is formed.

The invention relates to a preparation method of hydrolysis-resistant PBT polyester resin. The preparation method comprises the following steps: mixing terephthalic acid, 1, 4-butanediol, an organic titanate compound and magnesium phosphate to prepare slurry; carrying out esterification reaction to obtain a prepolymer; carrying out melt phase polycondensation reaction to obtain a PBT polyester resin substrate; and finally, mixing the PBT polyester resin substrate, an end-capping modifier and an organic phosphate compound in a twin-screw extruder, thereby obtaining the hydrolysis-resistant PBTpolyester resin. 97-99 parts by mass of the PBT polyester resin substrate, 0.5-1 part by mass of the end-capping modifier and 0.01-1 part by mass of the organophosphate compound are added in the mixing process. The end capping modifier is hyperbranched polyester of which the number of terminal hydroxyl groups is 6-100 and a branch unit contains 2, 2-dimethylolpropionic acid. The preparation methodis simple, and the prepared hydrolysis-resistant PBT polyester resin has excellent comprehensive performance.