47results about How to "Effective content" patented technology

The invention discloses a preparation method of creeping dichondra-berchemia lineata-verbena Gantai preparation, prepared from creeping dichondra, berchemia lineate, verbena, stephania root, herba patriniae, herba epimedii, milk vetch, red peony root, salviae miltiorrhizae and auxiliary materials. According to the preparation method disclosed by the invention, a preparation process is optimized according to properties of each medicine in a formula of creeping dichondra-berchemia lineata-verbena Gantai granules and the effect of the medicine in the formula; and compared with the prior art, the preparation method disclosed by the invention has the advantages that content of active ingredients of a product prepared by the preparation method disclosed by the invention is high and clinical effect is good.

The invention relates to an ion exchange waste water denitrification material and a preparation method thereof. A segmented copolymer containing a polyolefin acetal chain segment and a polyolefin sodium carboxylate chain segment is prepared from polyolefin alcohol and polyolefin sodium carboxylate which have low polymerization degree, as well as aldehydes, kieselguhr, kaolin, imvite and the like under the action of an initiator. The copolymer has sodium carboxylate groups, can be used as cation exchange resin, and performs the exchange with NH4<+> in waste water;and the roughness of the material can be increased by adding inorganic nanometer powder soil, and the specific surface area is increased to improve the hydrophily and affiliation capacity of microbes. The preparation method comprises the following steps of: dissolving the polyolefin alcohol and the polyolefin sodium carboxylate by using NaSCN solution, adding the initiator for polymerizing, adding a terminator and inorganic nanometer powder, stirring and mixing uniformly to prepare spinning solution, coagulating the spinning solution with inorganic salt solution in coagulating bath to form nascent fibers, performing post processing processes such as drawing, heat setting, acetalation, washing, drying and the like, and weaving to form a specific shape to obtain the required product. The material has the good mechanical strength, hydrophily, microbe affinity and ion exchange performance.

The invention belongs to the technical field of vanadium ore processing, and particularly relates to a method for extracting vanadium pentoxide from secondary vanadium slag. The method comprises the following steps of regulating content of vanadium in the secondary vanadium slag, grinding the secondary vanadium slag, mixing the ground secondary vanadium slag with sodium carbonate to obtain a mixture, heating the mixture through a rotary kiln, adding water into the mixture, and filtering the mixture to obtain filtrate; adding calcium chloride into the filtrate to generate precipitates, regulating the pH value, adding ammonium chloride to obtain ammonium polyvanadate; and heating the ammonium polyvanadate to dehydrate and remove ammonium, thereby obtaining the vanadium pentoxide. According to the method for extracting vanadium pentoxide from secondary vanadium slag, vanadium can be effectively extracted from the secondary vanadium slag with relative low vanadium content, so that the secondary vanadium slag is changed into things of value, and therefore, a utilization rate of natural resources is increased.

The invention discloses a device and method for concentrating kerogen from easily-slimed oil shale. The device comprises a crusher, a sliming device, a vibrating screen, a mixing barrel, a feeding pump, a heavy medium separating device, a light product medium removing and dewatering screen, a heavy product medium removing and dewatering screen, a magnetic separator, a qualified medium barrel, a medium supplementing barrel, a centrifugal machine and a thickener. Oil shale is crushed through the crusher and then enters the sliming device; the slimed oil shale enters the vibrating screen to be classified; materials on the screen enter the heavy medium separating device; obtained products are subjected to medium removing and dewatering, and large blocks of kerogen-rich products and large blocks of kerogen-poor products are obtained; heavy media are recycled and reused through the magnetic separator; materials under the screen and tailings of the magnetic separator are subjected to dewatering of the centrifugal machine and the thickener, and high-slime-content fine-grain kerogen tailings are obtained; and overflow of the thickener becomes circulating water, and the circulating water returns to the heavy media to be separated. The device and method are suitable for separating of easily-slimed oil shale, the washing precision and a kerogen concentration effect can be improved, the tailing water treatment link is simple, and the device and the method are easy to achieve and have high practicability.

A process for testing the quality of ganoderma product, especially the orally taken 'Shuangling Guben', features that the bovine serum albumin is used as reference to measure the content of ganoderic polyosepeptide. Its advantages are high sensitivity, repeatability and anti-interference power.

The invention discloses a method for determining total flavonoid content in a litchi seed; the method is an ultraviolet spectrophotometry and comprises the following steps: (1) preparing a reference substance solution: preparing a gradient standard solution by taking procyanidine A2 as a reference substance; (2) preparing a test solution: taking litchi seed powder, adding methanol into the litchiseed powder, carrying out reflux extraction, filtering and diluting; (3) preparing a chromogenic reaction solution: uniformly mixing n-butyl alcohol, concentrated hydrochloric acid and an ammonium ferric sulfate solution according to a ratio; (4) drawing a standard curve: adding a color developing reaction solution into the reference substance solution, mixing, measuring the absorbance value, anddrawing a standard curve of absorbance value-procyanidine concentration; and (5) determining the test solution: taking the test solution, measuring the absorbance value of the test solution, and substituting into a regression equation to obtain the total flavonoid content in the litchi seed. The method in the invention is simple and rapid, the degree of precision, the reproducibility, the accuracyand the stability are good, batch measurement can be carried out, and the requirements for industrial production detection can be met.

The invention discloses a method for rapidly detecting acrylic amide. The method for rapidly detecting the acrylic amide includes following steps: smashing a sample to be detected and placing the smashed sample in deionization water, stirring the deionization water for 1-4 hours in backflow mode, filtering the deionization water so as to obtain a filter solution; measuring dielectric loss rate of the filter solution under a frequency condition of 3*108-1010Hz; using a standard curve or a dependent equation of the dielectric loss rate of a standard acrylic amide solution under the same frequency so as to obtain concentration of the acrylic amide in the filter solution and calculate content of the acrylic amide in the sample. The method for rapidly detecting the acrylic amide is short in time, and simple and easy to operate, obtains better detection effects for detecting the content of the low concentration acrylic amide than detection effects obtained by using a liquid chromatogram detection method, and has a wide application prospect in the aspect of detecting the content of the acrylic amide in fried food.

The invention discloses a device for improving the content of maltitol and a preparation method thereof. The device comprises a saccharifying tank. A feeding port and an emptying port are formed in the upper end of the saccharifying tank, a timer and a pH display are installed on the outer side of the saccharifying tank, and a discharge port is formed in the lower portion of the saccharifying tank. By installing a heating device, a thermometer and the pH display, the combination can improve the temperature requirements for all steps, real-time display is achieved, and the inner states of the saccharifying tank are known and changed in time. The steps such as syrup liquifying and saccharifying are conducted, and the DE value is detected for many times in the saccharifying process of syrup, so that the saccharifying process in the saccharifying tank can be known, and the saccharifying time and the saccharifying enzyme quantity can be contrasted through figures; and the best saccharifying time and the saccharifying enzyme addictive quantity can be chosen, the effects that saccharifying is maximized, and the composite reaction is not serious are achieved, and the content of a maltitol finished product is increased.

The invention provides a method for tissue culture of cluster seedlings of herb saussureae involucratae in Xinjiang and a large-scale subculture method thereof. The method comprises the following steps: forming calluses on a MS modified culture medium (1) by induction; and inducing out a callus XCSY-1 which can quickly differentiate the cluster seedlings and stabilize a successive generation by screening and succession of the calluses on a MS modified culture medium (2), wherein, the callus can be quickly differentiated into the cluster seedlings with uniform state on a seedling strengthening culture medium. Numerous cluster seedlings of the herb saussureae involucratae with uniform growth state can be cultured by subculture proliferation of the callus XCSY-1 in Xinjiang. The cluster seedlings of the herb saussureae involucratae can be directly taken as product or raw materials, and can be cultured into rooting test tube seedlings for artificial plantation. The method has simple operation, can be applicable to large-scale production; and the cluster seedlings have more stable quality, higher yield and greatly shortened production cycle compared with wild cluster seedlings. In addition, the method requires less farmland, does not damage the wild herb saussureae involucratae resources, protects ecological environment, and helps solve the shortage problem of the herb saussureae involucratae resources in Xinjiang.

The invention relates to the technical field of waste water treatment, in particular to a micro-electrolytic filler for realizing the resource utilization of iron mud, a preparation method and a use thereof. The micro-electrolytic filler comprises the following raw materials in parts by weight: 25-45 parts of carbon, 50-80 parts of iron and 5-15 parts of binder, wherein that iron is from iron mud.When the micro-electrolytic filler of the invention is prepared, carbon, iron and binder are uniformly mixed according to the proportion and aged; then the obtained mixture is made into a green body,and the green body is dried; and then the dried green body is sintered at 600-1200 DEG C for 2-8 hours under the oxygen-free condition, and after cooling, the micro-electrolytic filler for realizingthe resource utilization of the iron mud is obtained. The microelectrolytic filler of the present invention can be used for treating organic wastewater. The invention aims at the iron mud generated inthe process of production and waste water treatment, and utilizes the principle of carbothermal reduction to carry out the resource utilization of the iron mud.

The invention discloses a sludge pretreatment method based on a sulfo-porphyrin iron catalyst Fenton-like system, which comprises the following steps: mixing a sulfo-porphyrin iron catalyst, methanol and a hydrogen peroxide solution, stirring, mixing the obtained mixed solution with sludge, and carrying out hydrolysis treatment to complete the pretreatment of the sludge. According to the sludge pretreatment method based on the sulfo-porphyrin iron catalyst Fenton-like system, the sulfo-porphyrin iron catalyst, methanol and the hydrogen peroxide solution are mixed and stirred to generate the mixed solution containing high-valence iron species, the mixed solution is further mixed with sludge, the sludge is effectively treated by utilizing the high-valence iron species, and the sludge treatment efficiency is improved. The method has the advantages of low catalyst and oxidant consumption, mild reaction conditions, high treatment efficiency, good treatment effect, good adaptability and the like, has very important significance for improving the subsequent resource utilization effect of the sludge, and is high in use value and good in application prospect.

The invention discloses a method for determining content of calcium hydroxide in lime. The method includes that according to a law that calcium oxide generates calcium hydroxide in water and a part, dissolved in water, of calcium hydroxide is completely electrolyzed to be hydroxyl ions and calcium ions, mass of insoluble substance in a sample is obtained by a filter weighing method by adopting molar weight of the hydroxyl ions in a total alkalinity titration sample solution, and the operation process is simple and convenient; content of calcium hydroxide in lime can be obtained accurately by utilizing equation calculating according to a sum of mass of calcium hydroxide and calcium oxide in the sample solution and molar weight of the hydroxyl ions in the sample solution, and effective utilization rate of lime can be increased.