140results about How to "Easy to leach" patented technology

A method for treating wood, characterized by impregnating wood with a metal-containing treating agent containing lignin and / or lignin derivatives and a metal, a metal compound, and / or a metal ion and oxidizing and / or macromolecularizing of the lignin and / or lignin derivatives in the wood to fix the metal component in the wood, and wood and woody materials obtained by the treating method. According to the method of the present invention, while effectively utilizing lignins, lignosulfonic acids, or lignosulfonic acid salts, leaching of the metal component can be suppressed to a low level to thereby retain the effects due to the incorporation of the metal components for a prolonged period.

Disclosed herein is a method for concentrating gold contained in a leach residue obtained in a copper hydrometallurgical process for recovering copper from a copper sulfide mineral to efficiently separate and recover gold from the leach residue. According to the method, a gold-bearing copper sulfide mineral is subjected to pressure leaching with sulfuric acid at a temperature higher than 102° C. and 112° C. or lower to obtain a leach residue, and the leach residue is subjected to flotation to separate it into a float fraction and a sink fraction. The float fraction obtained by flotation is desulfurized by heating at a temperature of 250 to 800° C. under an inert atmosphere to obtain a desulfurized product. The desulfurized product is subjected to oxidative roasting by heating at a temperature of 600 to 800° C. under an atmosphere of flowing oxygen or air to obtain an oxidatively-roasted product. The oxidatively-roasted product is dissolved in a sulfuric acid solution to obtain a copper solution, and a gold-bearing residue is separated and recovered from the copper solution.

The invention relates to the field of non-ferrous metallurgy and resource recycling, in particular to a novel process for extracting vanadium from vanadium-containing waste catalyst reductive organic acid. The novel process comprise the steps that a vanadium-containing waste catalyst is directly extracted in a reductive organic acid system, and other reductive agents are not added, so that pentavalent or tetravalent vanadium is directly reduced into vanadium-oxygen-based ions or trivalent vanadium ions, the vanadium-oxygen-based ions or the trivalent vanadium ions are combined with organic acid radical anions and enter a solution, and vanadium-containing leaching liquid and vanadium-containing leaching slag are obtained; and ammonia water is added into the vanadium-containing leaching liquid to adjust pH so that ammonium vanadate can be formed and precipitated, and after separating is conducted, a vanadium pentoxide product is obtained by calcining precipitation slag. According to the novel process for extracting the vanadium from the vanadium-containing waste catalyst reductive organic acid, the vanadium is extracted by adopting the reductive organic acid system; the extracting condition is mild; the vanadium extracting rate is 95% or above and higher than the direct inorganic acid fluid extracting rate; and other impurity ions are not introduced in the extracting process, so that recycling of other metal elements in the waste catalyst is not affected.

The invention relates to a method for recycling waste residue in manganese industry production. The method comprises the specific following steps: (1) pre-processing filter residue; (2) adding acid and leaching; (3) carrying out filtering and solid-liquid separation on ore slurry; (4) recovering hematite powder; (5) recovering manganese carbonate concentrate; and (6) preparing a nitrogen-phosphorus compound fertilizer base material. By the method, hematite powder, manganese carbonate concentrate and the nitrogen-phosphorus compound fertilizer base material can be recovered from leached press-filtered residue, the process is simple and is easy to achieve industrialization and meanwhile, the content of the heavy metal ingredients is in completely in conformity with national associated standards, treated wastewater and waste residue are free of harmful ingredients such as heavy metals, the environmental pressure is alleviated and the method has great promotional values.

The invention relates to a preparation method of artificial rutile. The method comprises steps of acid-soluble titanium slag modification treatment, acid impurity removal, calcination and the like. The artificial rutile prepared with the method completely meets the requirement for production of titanium white with a chlorination process, and raw materials have high adaptability. A microwave heating manner is selected, the required equipment investment is 17% lower than that of the prior art, the energy consumption is reduced by 25%, the purity of the artificial rutile is higher than 91%, byproducts are fewer, environmental pollution is low, and requirement of energy saving, emission reduction and clean metallurgy are met.

The invention relates to a technology for preparing wild blue berry tea. The blue berry tea is prepared by adopting wild blue berry leaves and blue berry fruits, matching with dried tangerine peel and thyme and adding a wild blue berry extracting solution. Measured by preparing 5 kg of wild blue berry tea, 2.6 kg of wild blue berry leaves, 1 kg of wild blue berry dried fruits, 1 kg of dried tangerine peel and 0.4 kg of thyme are needed, and 1000 ml of wild blue berry extracting solution is added; the wild blue berry leaves, the wild blue berry dried fruits, the dried tangerine peel and the thyme are respectively crushed and fully mixed, the wild blue berry extracting solution is uniformly sprayed on the mixture which is baked and fried in a stainless steel fry. The wild blue berry tea has fresh pink tea infusion color, tastes slightly sour and has unique aroma. The addition of the extracting solution enables the effective ingredients of wild blue berries to be more easily soaked out so as to enhance the aroma taste. The blue berry leaves comprise rich vitamin C, flavonoid, SOD and anthocyanin so as to eliminate the fatigue of human bodies, resist aging and clear free radicals in the human bodies. The blue berry tea can be drunk for a long term to delay the aging of the brain, improve sleep and vision, lighten allergic reaction and prevent diabetes and cardiovascular and cerebrovascular diseases.

The invention discloses a method for extracting molybdenum from a waste nickel-molybdenum catalyst. The method comprises the specific steps that organic matter, sulphur, heavy metal arsenic and the like which are attached to the catalyst are removed through oxidation volatilization by means of low temperature roasting, then circulation two-stage ordinary pressure alkali leaching is adopted for achieving separation of nickel from molybdenum aluminum, sodium molybdate crude liquid is obtained and is subjected to heating, evaporation and concentration, cooling crystallization is carried out, andfiltering and separating are carried out to obtain a sodium molybdate product. According to the method, no reagent needs to be added in the roasting process, corrosion to roasting equipment is small,the operation condition is mild, the environmental pollution is small, comprehensive recovering and using of valuable metal in the catalyst are achieved, the sodium molybdate product is obtained, therecovering rate of the valuable metal is high, the product additional value is high, and a certain application value is achieved.

The invention provides a method for extracting alfalfa polysaccharide by use of complex enzyme (cellulase, papain and pectinase). The extracting temperature of the alfalfa polysaccharide is reduced, the extracting rate of the alfalfa polysaccharide is improved, and the method is suitable for popularization. The method comprises the following steps: determining the test range of factors influencing the extracting rate of the alfalfa polysaccharide through a single-factor test, determining the optimum proportion of the complex enzyme through an orthogonal test, then obtaining the relation between a response value and an influence factor by combing a central complex test with the response surface methodology (RSM), and computing the level of the influence factor when the maximum response value is obtained so as to determine the optimum extracting condition of extracting the alfalfa polysaccharide by complex enzyme, wherein the cellulase is 2.5%, the papain is 2.0%, pectinase is 3.0%, the extracting temperature is 52.7 DEG C, the extracting pH value is 3.87, the extracting solid-to-liquid ratio is 78.91, and the extracting time is 2.73 hours. The extracting rate of alfalfa polysaccharide is more than 5.0% under the condition provided by the invention.

The invention discloses lotus leaf black tea which comprises lotus leaves and tea green in wilted weight ratio of 1-1.2 to 1, wherein the lotus leaves are selected from spring lotus leaves or summer lotus leaves or autumn lotus leaves; the tea green is selected from Meizhao or Fuyun Number six or Fudingdahao. The processing method of the lotus leaf black tea comprises the following steps: selecting materials, removing the leaf navels, folding and rolling to carry out slitting, spreading on a tedding frame to carry out natural wilting, mixing the raw materials, rolling, screening to carry out dewaxing, flattening to carry out fermentation, frying by using a double-pot twisting machine, taking out from the pots after the leaves become soft, putting into a shaping machine to carry out shaping until the materials become 90% rolled or granular, carrying out first baking, baking until the materials are dry enough and carrying out aeration. The lotus leaf black tea is good in soup color, heavy and mellow in taste, sweet and elegant and long in fragrance, has the faint scent of the lotus leaves and the black tea flavor like the orchid fragrance, and is capable of satisfying the demands of the consumers requiring the faint scent of the lotus leaves and the black tea flavor; by carrying out alternate shaping through stir frying, more physiologically active ingredients can be retained so that benefit is brought to improve the health effect; and the shape of the finished tea is heavily practical so that the packaging and the conveying are convenient.

The invention discloses a comprehensive recovery technology of valuable components in corundum smelting smoke ash containing gallium and potassium. The technology comprises pretreatment of the corundum smoke ash, acid dipping, neutralization, alkali dissolution, precipitation, electrolysis, etc., wherein the pretreatment of the corundum smoke ash is a treating method of damaging smoke dust structure and combining carbon components through alkali, and the pretreatment successfully solves problems of difficult filtering of the smoke dust through direct acid dipping and low extraction efficiency of the gallium in the smoke ash. In addition, the technology does not use ion exchange or extraction to enrich the gallium. The technology can comprehensively recover metal gallium, potassium sulfate fertilizer, aluminium hydroxide and other valuable components from the smoke ash with a low cost and a high efficiency, and is suitable for industrial application.

The invention discloses a technology for preparing a ceramic tile from high-volume municipal water supply plant sludge, and belongs to the field of solid waste recycling and building material production in environmental engineering. The technology comprises the following steps of: uniformly mixing 38 to 42 mass percent of municipal water supply plant dewatering sludge powder (dry weight) with a certain grain size, 38 to 42 mass percent of kaolin and 16 to 24 mass percent of potassium feldspar powder, adding water which is about 20 percent based on the dry weight of the total material, uniformly mixing, and storing for certain time in a constant-temperature environment; and performing compression molding under certain pressure, raising the temperature from room temperature to 1,200 DEG C by a certain method and keeping temperature for one hour, and naturally cooling to the room temperature to obtain the finished product. Through detection, the main technical indexes meet the related national standard. By the technology, the water supply plant sludge is effectively utilized, and other brick production raw materials are substituted; and the technology has good environmental benefit and certain economic benefit.

The invention discloses a method for extracting total flavone from ampelopsis grossedentata. The method includes the following steps that: (1) dried ampelopsis grossedentata leaves are soaked in alcohol solvent for 1 to 5 hours; (2) the alcohol solution is filtered, filter residue is irradiated by microwaves, and are then merged in filtrate, and the filter residue and the filtrate are added into water with the temperature of 85 DEG C to 100 DEG C together, and are heated and extracted under the temperature of 85 DEG C to 100 DEG C for 50 to 140 minutes; (3) the extract is filtered and concentrated to one third to one fourth of the volume of the extract, water is then added into the extract, and crystallization takes place under the temperature of 0 DEG C to 10 DEG C. The adoption of alcohol assistance can remarkably increase the extraction rate, the extraction process adopting the microwave treatment technique is characterized by high efficiency, high selectivity and the like, moreover, operation is easy, byproduct is less, and the extraction rate of total flavone is as high as 38.3 percent.

The invention discloses a processing method for green tea from macadamia ternifolia leaves. The processing method comprises the following technological steps: fresh leaf picking, sun-withering and burn-withering treatment, primary kneading, rocking-withering, blending, withering, fixation, secondary kneading, primary drying, shaping, drying and the like. According to the processing method, fresh sugarcane leaves and the fresh macadamia ternifolia leaves are used as raw materials, the sun-withering and rocking-withering techniques of oolong tea are combined onto the traditional green tea processing techniques, the bitterness degree of the taste is reduced, and the flowery flavor of the oolong tea is improved; meanwhile, the large leaves are tightly wound to be screwed by utilization of a shaping machine, so that the dried tea is relatively compact and aesthetic in appearance and easy to package, and in addition, is mellow in taste and rich in flowery flavor.

The invention relates to a method for recycling leached and press-filtered residues generated in production of electrolytic metal manganese and manganese dioxide. The method comprises the specific following steps: (1) pre-processing filter residues; (2) adding acid and leaching; (3) carrying out filtration and solid-liquid separation on ore pulp; (4) recovering hematite powder; (5) recovering manganese carbonate concentrate; (6) preparing a base material for a nitrogen / phosphorus compound fertilizer; and (7) preparing sodium fluosilicate. By the method, hematite powder, manganese carbonate concentrate, sodium fluosilicate and the base material for the nitrogen / phosphorus compound fertilizer can be recovered from the leached and press-filtered residues, the process is simple and easy to industrialize and meanwhile, the content of the heavy metals is in full compliance with national standards, further treated wastewater and waste residues are free of harmful ingredients such as heavy metals and thus the pressure on the environment is reduced and the method has great promotional values.

The invention discloses an extracting method of natural anthocyanin from black rice, which comprises the following steps: immersing black rice in the water at 20-40 deg.c; stewing; adding alcohol solution in two solvent grooves separately; heating to 40-50 deg.c; pumping alcohl solution from one solvent groove to leaching tank bottom; adding anthocyanin solvent into condensing tank; pumping the alcohol solution in the other solvent groove into leaching tank bottom; adding anthocyanin solvent in the condensing tank; distilling the condensing tank in the vacuum; spraying; drying; obtaining the product.

The invention discloses a method for extracting metallic elements by treating lepidolite. The method comprises the following steps of 1, conducting mechanical activation on lepidolite concentrate; 2,uniformly mixing lepidolite powder with a restructuring agent and a binding agent according to the mass ratio of 1: (1-2): (0.2-0.5), and then conducting molding; 3, firstly, conducting low-temperature restructuring on a blank body obtained in step 2, and then conducting medium-temperature decomposition, so that clinker is obtained; 4, conducting water logging treatment, wherein firstly, leachingseparation is conducted on the clinker obtained in step 3 in a leaching agent at the temperature of 0-30 DEG C, so that a lithium salt solution is obtained, and then, leaching separation is conductedin the leaching agent at the temperature of 70-100 DEG C, so that a salt solution containing sodium, potassium, rubidium, caesium and aluminum is obtained; and 5, implementing a washing process on filter residues obtained after secondary leaching in step 4, so that high-silicon residues are obtained. By means of the method, the metallic elements in the lepidolite concentrate can be converted intodiffluent salt to be separated and extracted to the greatest extent; the utilization rate and economic benefits of the lepidolite concentrate are remarkably increased; and the method is easy to operate, low in process cost and high in recycling rate of the metallic elements.

The invention relates to an echinacea extract product, a preparation method and an application, the extract product comprises the following components by weight percentage: content of phenolic compounds is higher than 12%, content of Echinacea polysaccharide is higher than 20%, and chicoric acid content is higher than 4%. The extract product has obvious promotion effect to the generation of mice hemolysin antibody, the echinacea extract product can enhance humoral immunity, and the effect of the echinacea extract product is better than that of the prior art.

The invention discloses a deodorization composite biological stuffing as well as a preparation method and application of the same. The deodorization composite biological stuffing comprises a stuffing main body and an adhesion agent, wherein the adhesion agent takes account for 10-40% of the stuffing main body in usage amount by weight percentage; in percent by weight, the stuffing main body comprises 70-80% of calcium carbonate, 5-10% of diammonium phosphate, 10-20% of bark powder, 0-5% of urea and 0-5% of the soybean meal; and in percent by weight, the adhesion agent comprises one or more of 30-100% of ethylene / vinyl acetate, and 20-70% of Na2O nSiO2 / K2O nSiO. By the steps of mixing, extrusion forming, drying and the like, the stuffing main body and the adhesion agent are prepared to the deodorization composite biological stuffing. The stuffing is matched with deodorization microorganism for use, second fermentation liquor obtained from the deodorization microorganism which is subject to seed cultivation and fermenter cultivation is uniformly scattered on the stuffing, and after growing, the microorganism can be used for deodorization work. The deodorization composite biological stuffing has the advantages of being excellent in deodorization effect and long in using time which is improved by 30% compared with that of the way using bark as stuffing.

The invention relates to a process for extracting vanadium through alkaline leaching conducted after stone coal oxidizing roasting, and belongs to the technical field of metallurgy and chemical industry. The process is characterized by including the steps of firstly, grinding stone coal ore till the 200-mesh particles accounts for about 80% of the total amount, adding water to form balls, and conducting high-temperature roasting in a flat kiln; secondly, using NaOH and sodium carbonate to conduct leaching together in the vanadium leaching process, and conducting leaching for three hours at the temperature lower than 95 DEG C, wherein the massic volume ratio of stone coal roasted product to leaching liquid is 1g / ml to 3g / ml, the additive amount of the NaOH is 40g / L, and the additive amount of the sodium carbonate is 13.5g / L; thirdly, enabling the stone coal to enter a purifying pool after primary leaching and washing are conducted so that the solid-liquid separation can be achieved, stacking and storing the stone coal balls, enabling lixivium to directly flow back to be used for leaching vanadium of newly added stone coal, adding leaching agents to the secondary lixivium according to the proportion of the NaOH to the leaching liquid, namely, 13.5g / L and the proportion of the sodium carbonate to the leaching liquid, namely, 4.5g / L, and enabling the product to flow back to be used for leaching vanadium of stone coal balls which are added for the third time. The process has the advantages of being small in pollution, high in vanadium extraction rate, few in heavy metal impurities produced in the leaching process, small in water consumption and the like, and has certain economic benefits under the present technical condition.

Disclosed herein is a method for concentrating gold contained in a leach residue obtained in a copper hydrometallurgical process for recovering copper from a copper sulfide mineral to efficiently separate and recover gold from the leach residue: a gold-bearing copper sulfide mineral is subjected to pressure leaching with sulfuric acid at a temperature higher than 102° C. and 112° C. or lower to obtain a leach residue, and the leach residue is subjected to flotation to separate it into a float fraction and a sink fraction; the float fraction obtained by flotation is desulfurized to obtain a desulfurized product; the desulfurized product is subjected to oxidative roasting to obtain an oxidatively-roasted product; the oxidatively-roasted product is dissolved in a sulfuric acid solution to obtain a copper solution, and a gold-bearing residue is separated and recovered from the copper solution.

The invention discloses a method for leaching spodumene based on combination of a microwave and a pressure field, and belongs to the production technology field of lithium salt extracted from spodumene in chemical metallurgy. The method comprises the steps of (1) grinding ore; (2) transforming an out-field irradiation crystal form; (3) pressure leaching; and (4) separating and purifying. Accordingto the technical scheme, microwave irradiation is adopted on the spodumene, so that a crystal form transformation temperature range is expanded; and then a direct sulfuric acid leaching process is carried out on the irradiated spodumene, valuable metals such as lithium are leached into lithium sulfate under the conditions of heating and pressurizing, then the lithium sulfate is separated and purified, a solution is recovered, and a final product i.e. the lithium salt is obtained, so that an application range of a complicated spodumene raw material is further expanded. The technical scheme hasthe advantages of short flow, energy conservation, emission reduction, excellent current joining process and the like.

The invention discloses a method for releasing and recovering phosphorus in sludge. The method mainly comprises the following steps: adding a flocculant into the sludge, stirring, carrying out ultrasonic pretreatment, and finally carrying out mechanical dewatering; drying the dewatered sludge, and grinding the dewatered sludge by a grinder to prepare dry sludge for later use; incinerating the prepared dry sludge to obtain sludge incineration ash, putting the incineration ash into a container, adding an extracting agent, and performing centrifugal treatment under a certain liquid-solid ratio condition to obtain a sludge supernatant rich in a large amount of phosphorus; adding the obtained supernatant rich in the large amount of phosphorus into a reactor, and performing refined purificationtreatment; and taking the supernatant subjected to fine purification treatment as a stock solution, putting the stock solution into a container, adjusting the pH value, and adding MgCl2. 6H2O to obtain a phosphatized precipitate. The method improves the recovery and utilization rate of phosphorus in the sludge from the source, and is suitable for wide popularization.

The invention relates to a method for producing electrolytic metal manganese and application thereof. The method comprises the following steps of: leaching, namely adding electrolytic manganese anolyte into a combining tank, stirring, and testing and analyzing the content of Mn<2+> and H<+> in the electrolytic manganese anolyte; adding sulfuric acid, adding water quenching residue and a manganese dioxide ore, and introducing steam for heating in the feeding process; neutralizing, namely when the concentration of Fe<2+> in feed liquor is less than or equal to 0.001g / l, introducing ammonia water into the feed liquor for neutralizing; standing, namely performing pressure filtration on the feed liquor, adding into a standing pool, detecting the feed liquor, and determining that the feed liquor is qualified liquor when the concentration of manganese is 30 to 35g / l, the concentration of ammonium sulfate is 110 to 115g / l, the pH value is 6.0 to 7.0, sigma Fe is less than or equal to 0.001g / l and the concentration of Co, Ni and Zn is less than or equal to 0.001g / l in the feed liquor; and electrolyzing to obtain qualified electrolytic metal manganese. In the method for producing the electrolytic metal manganese, the water quenching residue is taken as a manganese source. The method has the advantages that: production cost is low; the mineral source for producing the electrolytic metal manganese is expanded; the leached feed liquor is not required to be purified, so that the production period can be shortened by 3 to 4 hours; and the total content of the manganese in leaching residue can be controlled to be below 3 percent.

The invention belongs to the field of firing and wet comprehensive smelting of rare earth ore and particularly relates to a method for separating and producing rare earth from iron-containing rare earth raw ore. An iron bead product and a rare earth product are obtained through steps as follows: grinding, mixing, agglomerating, distribution in a rotary hearth furnace, smelting separation in the rotary hearth furnace, roasting, water leaching and the like. Under the condition of relatively lower cost, production efficiency and rare earth leaching rate are greatly increased.

The invention relates to a leaching method for stone coal vanadium extraction. According to the technical scheme, stone coal raw ore is subjected to fine grinding, and stone coal powder is obtained; a hydrochloric acid solution and the stone coal powder are mixed according to the liquid-to-solid ratio being 1.2-1.7 L / kg and activated, and ore pulp obtained after activating is obtained; the ore pulp obtained after activating is added in concentrated sulfuric acid to be mixed evenly, an exciting agent and a calcium-based carrier are added, and ore pulp before leaching is obtained, wherein the volume ratio of the ore pulp obtained after activating to the concentrated sulfuric acid is 1:(0.09-0.15), the mass ratio of sulfate ions in the exciting agent to the stone coal powder is (0.019-0.058):1, and the mass ratio of calcium ions in the calcium-based carrier to the stone coal powder is (0.005-0.022):1; the ore pulp before leaching is fed into an autoclave, leaching is conducted for 1-3 h under the conditions that the temperature ranges from 130 DEG C to 160 DEG C and the oxygen partial pressure is 0.5-1.5 MPa, solid and liquid separation is conducted, and pickle liquor and acid leaching residues are obtained. The leaching method has the beneficial effects of being efficient, environment-friendly and high in vanadium leaching rate.

The invention discloses a dressing and smelting method for recovering copper from bonded copper oxide minerals. The method comprises the steps that 1, the bonded copper oxide minerals are smashed and ground and then are mixed with water, and raw ore pulp is obtained; 2, ore dressing is carried out on the raw ore pulp through a low-intensity magnetic separation-gravity separation-high-gradient magnetic separation ore dressing technology; 3, gravity concentrates and high-gradient magnetic concentrates separated out through the ore dressing technology are combined and then filtered to obtain enriched product residues, and primary ore pulp is prepared; 3, sodium hydroxide is added for pretreatment, and pretreatment liquid and pretreatment residues are obtained after filtering; 5, after secondary ore pulp is prepared, acid leaching is carried out on the secondary ore pulp to obtain copper-bearing acid leaching liquid. The recovery rate of copper is not smaller than 80 percent, spongy copper with the mass purity not lower than 90 percent can be obtained through further extraction, and the advantages of being high in ore dressing index, high in product quality, high in operability and simple in technological process are achieved.

The invention relates to the field of health foods and particularly relates to a preparation method of a tea bag for alleviating hangover, helping digestion and protecting liver. The preparation method comprises the following steps of: packaging a rhizoma imperatae extractive and a fructus schisandrae extractive by lotus leaves to obtain a mixture, adding fringed pink, lemon slices and jasmine flowers into the mixture, and bagging. According to the preparation method of the tea bag for alleviating the hangover, helping the digestion and protecting the liver, invalid impurities of the rhizoma imperatae extractive and the fructus schisandrae extractive are removed, the use quantities of the rhizoma imperatae extractive and the fructus schisandrae extractive are reduced, and active substances are easily dissolved and absorbed, and the taste is relatively good. The extractives are packaged by the lotus leaves, the deliquescence of the extractives can be reduced, and the extractives can be prevented from being contacted with other medical materials and packaging materials after the deliquescence. The lotus leaves have good digestion helping and fat reducing functions, and the smell of the lotus leaves is fragrant. The fringed pink has the effects of reducing fever and causing dieresis and assisting rhizoma imperatae to be excreted from a water channel. The lemon slices and the jasmine flower assist the fructus schisandrae to smooth the liver, regulate vital energy and enhance the fragrance. The functions of hangover alleviating, digestion helping, liver protection and kidney tonifying are entirely considered, and the tea bag is very suitable for being drunk after the meal. The tea bag has a good healthcare effect after being drunk in normal times and can be used for assisting treatment on diseases such as alcoholic liver, fatty liver, hepatitis, hyperlipaemia, fat, dysuria, and edema.

The invention discloses an extracting method for soybean oligosaccharides. The method comprises the following steps of preprocessing, ultrasonic-microwave synergic processing, acid precipitate processing, digestion processing, decoloring, salt removal, concentration drying, MPLC separation and secondary MPLC separation. According to the extracting method for soybean oligosaccharides, dissolution of oligosaccharide is accelerated by means of the ultrasonic effect, meanwhile, the temperature is controlled within the proper range, the soybean cell wall is softened, the soybean structure is loosened, molecular movement is violent, the soybean oligosaccharides are more likely to be leached, the soybean oligosaccharides extracting rate is increased, by adopting ultrasonic-microwave synergic processing, ultrasonic vibration mass transfer and microwave energy transfer are combined, soybean oligosaccharides extraction is facilitated, oligosaccharides are separated through the MPLC, crude soybean oligosaccharides can be effectively separated into stachyose monomers, raffinose monomers and saccharose monomers, and the monomers of oligosaccharides can be applied separately.

A method and device for treating arsenic-alkali slag. The method is to wet crush arsenic-alkali slag, add an oxidizing agent to perform the first leaching, and filter and separate to obtain the first leaching slag and the first leaching solution, and the first leaching slag Ball milling is carried out after pulping, adding an oxidizing agent after ball milling to perform second leaching and then filtering to obtain second leaching residue and second leaching solution. The present invention also includes an arsenic-alkali slag treatment device, which includes a water spray device, a crusher, a primary leaching unit, a primary leaching filter, a pulping unit, a grinding unit, a secondary leaching unit and a secondary leaching filter. The method and device of the present invention can achieve crushing and ball milling without raising dust, can minimize the pollution of harmful dust to the operating environment and the atmospheric environment, and can ensure >97.00% arsenic removal rate and >95.00% antimony incorporation while protecting the environment. The slag rate, crushing, ball milling and leaching are organically combined, not easy to block, and the process is smooth.

The present invention provides feature dark tea bacteria, a preparation method and a use method thereof, and relates to the field of functional beverages with medicine food homology. A purpose of the present invention is to prove a dark tea sugar brick, a dark tea with probiotic strains, and a dark tea bacterial liquid prepared from the dark tea sugar brick and the dark tea with probiotic strains. According to the technical scheme, the dark tea sugar brick and the dark tea with probiotic strains are processed through the special process, such that the advantages of easy material quantifying, substantially simplified process, improved fermentation speed and improved fermentation effect can be provided in the tea bacterial culture, the effects of the obtained fermented product are significant, and the applications are broad. According to the present invention, dark tea containing Eurotium cristatum is subjected to high-temperature frying in a syrup, and the obtained material is subjected to modification, sterilization and quantifying to obtain the dark tea sugar brick; and the dark tea bacterial liquid prepared from the dark tea sugar brick and the dark tea with probiotic strains.