94results about How to "Less economic value" patented technology

The invention generally relates to methods for modifying a porous amorphous material comprising micropores to reduce its micropore volume and to form a support for a hydroprocessing catalyst, to methods of making said catalyst, as well as to methods for hydrocracking employing said hydroprocessing catalyst characterized by a lower selectivity towards undesirable gaseous hydrocarbon products. In one embodiment, the method for modifying the amorphous material comprises depositing an inorganic oxide or inorganic oxide precursor to the amorphous material; and treating the deposited amorphous material so as to reduce its micropore volume by at least about 5 percent, while its mean pore diameter is substantially unchanged or changed by not more than about 10 percent. Further embodiments include the amorphous material comprising silica-alumina, and the deposited inorganic oxide or inorganic oxide precursor comprising silicon.

The invention provides a zero discharge treatment process of saline sewage produced by refining. The treating process comprises the steps that saline sewage produced by flue gas desulfurization is conveyed to an evaporation chamber after undergoing two-stage filtration and heat exchange, evaporated steam is mixed with fresh steam after being pressurized and the steam mixture enters the shell pass of a heater to be condensed and discharged; saline water in the tube pass of the heater is heated to be evaporated and crystallized in the heater, the steam enters a compressor and salt crystals are deposited in a salt leg at the bottom of the evaporation chamber and are swirled and centrifugally concentrated; salt crystal filter cakes are dried in a drying machine, moisture is volatilized and is discharged from the top of the drying machine, gases pass through a two-stage cyclone separator to separate salt solid particles and the salt solid particles are emptied by a drying draught fan, and the salt solid after dehydration and drying is packaged to prepare sodium sulfite or ammonium sulfate products. The process provided by the invention has the effects of overcoming the defects of the prior art, really achieving zero discharge treatment of sewage and producing sodium sulfite or ammonium sulfate with economic value and has the beneficial effects of high energy efficiency, low investment, short flow, small floor area, low failure rate and satisfaction of long period operation.

The invention relates to a method for preparing a baking-free brick, in particular to a method for preparing a baking-free brick by utilizing sludge. According to the method, the technical problems that a mud brick produced in the prior art is poor in water absorption rate, durability and environmental corrosion resistance and long in brick curing period, the additive amount of shale and sludge is large, the sludge stability is poor and bad smell is generated are solved mainly. A mud water separation device is used, the moisture content of the sludge is reduced to 20-30%; the sludge is placed in a sludge reaction tank to undergo fermentation drying, the sludge is smashed, coarse particles of 10 mm or above are screened out and then the sludge is stirred and cured; a curing agent is added into dehydrated sludge, and after the sludge is evenly stirred, the sludge reaches a normal temperature state; building rubbish, power plant ash deposits, cement and a sufficient amount of water are added, the mixture is aged and undergoes secondary stirring, a die is added to perform vibration, filling and leveling up and pressurization, steam curing is performed after demolding, and the finished product baking-free brick is obtained after natural curing.

The invention relates to feldspar concentrates separated from vanadium titano-magnetite tailings and a separation method thereof. The vanadium titano-magnetite tailings are used as raw materials; firstly, impurities in the vanadium titano-magnetite tailings are separated; then, sulfides in the tailings are removed through flotation; strongly magnetic minerals in the tailings are removed through low-intensity magnetic separation; weakly magnetic minerals in the tailings are removed through high-intensity magnetic separation; and finally, the feldspar concentrates can be obtained through classification or reverse flotation. The core problems of high quantity, limited transportation radius and low economical value of the vanadium titano-magnetite tailings are overcome; and the environmental pollution and the safety problem caused by long-time accumulation of the tailings are solved.

The invention relates to a large-scale anaerobic fermentation technique of straws and a device thereof. The fermentation technique includes biological pretreatment, anaerobic fermentation and anaerobic bacteria separation of the straws for separating an anaerobic bacteria liquid used for another circulation. The anaerobic fermentation device for implementing the method is composed of a feed device, an anaerobic generator and an anaerobic bacteria separator. The technique and the device do not need nitrogen source during the fermentation process of the straws and realize continuous feed and discharge during the anaerobic process of the straws; the molecular structure of the straws is changed through the mode of biochemistry; a large amount of straw lignin hard to be anaerobically digested is converted into a carbon source which is easily biodegraded; and a waxiness component for protecting the straws is decomposed, thus being capable of leading the anaerobic bacteria to successfully enter the inside of the straws, improving the speed of the degraded straws and being capable of realizing the production with low cost and large scale.

The invention belongs to the field of ceramic glaze and specifically relates to lightweight low-temperature fancy golden silk white glazed porcelain widely applicable to art ceramics or ceramics for household purpose and a manufacturing process thereof. According to the lightweight low-temperature fancy golden silk white glazed porcelain, by the combination of ground glaze and overglaze, the black galaxy effect is realized. The fired lightweight low-temperature fancy golden silk white glazed porcelain has black ground color, which is covered with golden sand particles. The golden sand particles are polygonal particles when examined under a microscope, and the light-reflecting effect is good. Relative to the black ground color, there is a striking contrast and a unique artistic effect is achieved. In addition, the service life of the lightweight low-temperature fancy golden silk white glazed porcelain is long due to the combination of the ground glaze and overglaze. According to the manufacturing process of the lightweight low-temperature fancy golden silk white glazed porcelain, the effect of the overglaze can be adjusted through the formula and thickness of the ground glaze and overglaze. Then, yield of black galaxy glaze is high, firing temperature is low, energy conservation and environment protection are achieved, and energy consumption is reduced.

The invention belongs to the technical field of aquaculture, and particularly relates to a breeding method for increasing the survival rate of loaches manually bred in a factory-like mode, wherein the breeding method is reasonable, simple and high in operability. According to the breeding method, the natural mating method, the sperm extrusion method and the laparotomy spermatophore-obtaining method can be adopted, the death rate of parent fish for breeding can be greatly reduced, and the spawning induction rate, the fertilization rate and the hatching rate can be increased.

The present invention discloses a decision optimization method of multi-land seed selection based on combination optimization. Aiming at a multi-land seed selection decision problem, a multi-land grain seed selection decision model based on a combination optimization theory method is constructed to achieve decision optimization of multi-land seed selection. The method comprises the steps of: constructing a training sample set; obtaining key factors which influence a yield; constructing a neural network model and performing training; constructing a training test set; obtaining a yield prediction value and a variance of a parcel through the trained neural network model; constructing a multi-land grain seed selection decision optimization model based on combination optimization; and employinga decomposition algorithm to solve an optimal seed selection proportion to obtain the optimal varieties of the seeds and a usage proportion. The decision optimization method of multi-land seed selection based on combination optimization can perform analysis and optimization of grain plantation and seed selection, and can guide concrete land agriculture plantation and agriculture plantation planning; and moreover, the decision optimization method provides technical support for macroscopic agriculture policy or regional sales and a stocking strategy so as to have great economic and social values.

The invention provides a boiler waste heat collection and utilization device, which relates to the technical field of boilers. The boiler waste heat collection and utilization device comprises a smokebox, wherein a water column pipe is fixedly arranged in the smokebox through a fixing block; two ends of the water column pipe penetrate through the top part of an inner wall of the smokebox and extend to the top part of the smokebox so as to communicate with a water inlet and a water outlet pipe; an air inlet pipe communicates to a position, close to the left side, of the bottom part of the smokebox; an air outlet pipe communicates to a position, close to the top part, of the right side of the smokebox; and a side box is fixedly arranged on a side wall of the smokebox. According to the boilerwaste heat collection and utilization device, a motor controls a turbine to move up and down on an outer surface of a screw rod, a mutual attraction force of an external magnet and an internal magnetdrives a clearing block to move up and down on an outer surface of the water column pipe, and a friction block slides up and down on the outer surface of the water column pipe so as to scrape dust onthe outer surface of the water column pipe, so that the occurrence of the phenomenon that increasing smoke dust accumulated on the outer surface of the water column pipe so as to cause the reducing of heat exchange efficiency and the relatively reducing of an economic value of a waste heat system is avoided.

The invention provides a softener of the scale that is difficult to be removed from a boiler used in a power station and a two-step washing scale removing method. The softener consists of the raw materials as follows based on the mass ratio: 0.5 to 7 percent of sodium ethylenediamine tetramethylene phosphonate, 0.6 to 8 percent of sodium polyacrylate, 10 to 40 percent of Na3PO4 question mark 12H2O, 8 to 35 percent of NaOH, 15 to 65 percent of Na2CO3, 2 to 10 percent of sodium humate and 0.5 to 5 percent of disodium ethylenediamine tetraacetate. The two-step scale removing method comprises the steps as follows: the softener for removing the scale is added during the operation of the boiler till the pH value is 10 to 12, the pH value of the water in the boiler is kept for 5 to 7 days under normal waste discharging situation to lead the scale of the boiler to fall off after being softened and dissolved; a corrosion inhibiting hydrochloride cleaning agent bought from market is used for cleaning at normal temperature according to a technique of Chemical Cleaning Rules of Boilers, thereby greatly shortening operation time with good cleaning effect. The scale cleaning time can be shortened to 2 to 3 days from the original 8 to 10 days. The softener for removing the scale has the advantages of innocuity, no harm and no corrosion, and can completely soften and dissolve the scale that is difficult to be removed. The problem that difficult scale of boilers of medium and low voltage power stations can not be cleaned in the prior art. The softener is also applicable to industrial boilers.

The invention discloses a preparation method of nutrition fertilizer for jasmine. The nutrition fertilizer is composed of rice bran powder, high fructose peel powder, wheat bran powder, black rice peel powder, meal, fish meal, pig bone powder, earthworm powder, sweet potato flour, vegetable protein powder, animal protein powder, heterophylla powder, honeysuckle powder, cassia seed powder, ginkgo powder, sesame powder and rhizoma anemarrhenae powder according to a certain percentage which is the weight percentage. The nutrition fertilizer prepared through the preparation method is low in cost, the raw materials are easy to obtain, the recipe and the preparation method are simple, the ingredients are rich in a variety of nutrients, the jasmine is enabled to grow fast and vigorously and have good disease prevention performance, flowers of the jasmine are large in size, each flower is bright-colored and attractive, and the defects that the jasmine needs to be subjected to application of fertilizer and pesticide in different periods for multiple times, the yield of flower buds of the jasmine is low, the economic value is low, leaves of the jasmine scorch and fall off, the number of the flowers is small, the flower buds are small, roots are thin, small and not developed, the jasmine grows slowly, various diseases and pests are caused more easily, and the jasmine is more prone to dry rot and death can be effectively overcome.

The invention relates to a medicine and food dual-purpose traditional Chinese medicine composition with anti-tumor activity and immunoregulation effect and application thereof. The composition comprises ganoderma lucidum extract and radix astragali extract in mass ratio of 1:0.5-3, wherein the ganoderma lucidum extract comprises the following effective medicinal ingredients in percentage by weight: 50-70% of ganoderma lucidum polysaccharides and 6-10% of ganoderma lucidum total triterpene; and the radix astragali extract comprises the effective medicinal ingredient in percentage by weight: 20-45% of radix astragali polysaccharide. Based on traditional Chinese medicine pharmacological animal experiments, the composition of the invention is found having anti-tumor effect, improves the immunocompetence of a body, and has a medicine and food dual-purpose property. In addition, compared with single ganoderma lucidum, the use of the radix astragali as raw material reduces the cost of the traditional Chinese medicine composition, the anti-tumor and immunoregulation curative effects are close to the curative effects of the same amount of the single ganoderma lucidum, and the invention has certain economic value.

The invention is applicable to the processing of camellia seeds, and provides a processing technology for camellia seeds. The processing technology comprises the following steps: firstly, processing harvested camellia seeds, dividing the processed camellia seeds into camellia seed kernels, shells and seed husks, performing continuous processes of one-time cold-pressing, two-time cold water elution, two-time hot water elution and one-time hot-pressing on camellia seed kernels, and respectively utilizing various products in the processes; performing two-time cold extraction and two-time hot extraction on shells and seed husks, and respectively utilizing various products in the processes. According to the invention, all the components of camellia seeds are fully utilized, and the shells and seed husks of camellia seeds, usually abandoned, are converted into products with higher economic value; grease, protein, tea saponin, tea polyphenol, tea polysaccharide and cellulose in camellia seeds are extracted respectively, a low-cost and environment-friendly extraction technology meeting the requirements of camellia seeds is designed according to the technological requirements of follow-up products, the zero contamination and zero emission of the production process are realized through the follow-up product preparation, and camellia seeds are comprehensively utilized.

The invention relates to the technical field of food producing and processing, and discloses a cuttlefish, squib ink and gulfweed noodles and a preparation method thereof. On the basis of the concept of a healthy diet and the idea of meat and vegetable collocation, the healthy and nutrient cuttlefish, squib ink and gulfweed noodles which have unique flavor and take cuttlefish, squib ink and gulfweed as main supplementary materials are provided; a food additive is completely abandoned; the ingredients are simple; the nutrient is abundant; and the cuttlefish, squib ink and gulfweed noodles are processed through a simple and stable technology. Compared with traditional noodles, the cuttlefish, squib ink and gulfweed noodles are rich in nutritional ingredients of iodine, calcium and the like, are free of the unacceptable stench of squib ink, have an outstanding fresh flavor of gulfweed and rich unique flavor of cuttlefish, are elastic and chewy, and are glossy in color and smooth in taste. The cuttlefish, squib ink and gulfweed noodles are simple in preparation technology, and are delicious and unique; and high-quality food with abundant nutrient and high cost performance is provided for most people.

The invention relates to the technical field of producing and processing of foods, and discloses gulfweed-cuttlefish sausages and a making method thereof. The gulfweed-cuttlefish sausages provided by the invention are based on a healthy diet idea and a thought of collocation of meat and vegetables, cuttlefish is used as a main raw material, gulfweed and pork are used as auxiliary materials, and salt, pepper powder, gourmet powder, white granulated sugar and the like are used as seasonings, so that the healthy and nutritive gulfweed-cuttlefish sausages are made, a food additive is not used completely, and the gulfweed-cuttlefish sausages are rich in nutrition, safe and reliable; marine raw materials which are low in price, rich in nutrition, delicious in taste and easy to obtain are used, the gulfweed-cuttlefish sausages are processed through a simple stable technology, and the original flavor and the original nutrition of product raw materials are reserved to the maximum extent, so that the obtained gulfweed-cuttlefish sausages are complete in color, aroma and taste, free from powder and residues when being chewed, and rich in certain elasticity, and besides, have the delicate fragrance of the gulfweed and the delicate freshness of the cuttlefish. The gulfweed-cuttlefish sausages provided by the invention are simple in preparation technology, delicious and unique, and a good-quality food which is rich in nutrition and high in cost performance ratio is provided for vast masses.

The invention discloses a high-utilization-rate extraction and processing method of wrinkled papaya. The method comprises the following steps: cutting fresh wrinkled papaya fruits, juicing, extracting SOD (superoxide dismutase) and papaya juice from separated papaya puree, and preparing oleanolic acid and animal feeds by using residual peels and fruit residues. In the whole process, all parts of the winkled papaya are utilized as much as possible, harmful organic solvents are introduced as less as possible, and wastes are generated as less as possible. Therefore, the method has the characteristics of high utilization rate and ecological environmental protection property, the technical support is provided for full utilization of the value of the wrinkled papaya, the economic value is brought to planters as much as possible, and the promotional value and the prospect are very high.

The invention relates to a preparation method of nutrition fertilizer of dicentra spectabilis which comprises the following components by weight percent: 2%-4% of camdlia oleifera powder, 6%-8% of garlic solution, 1%-3% of nux vomica powder, 2%-4% of common threewingnut root powder, 6%-8% of dry rabbit manure, 7%-9% of dry chicken manure, 4%-6% of dry sheep manure, 11%-13% of bean cake powder, 9%-11% of colza cake powder, 14%-16% of corncob powder, 10%-12% of rice bran powder, 5%-7% of charcoal powder, 1%-3% of auxin powder, 7%-9% of epoxy resin, 0.1%-0.3% of copper sulfate solution, 0.2%-0.4% of dupont lannate solution, 0.1%-0.3% of carbendazim, 0.2%-0.4% of streptomycin and oxyteracykine. The preparation method comprises the steps of: putting the components into a blender to mix for 180 minutes, taking out and putting into a 2% granule grinder to grind, taking out and pouring into a fermentation tank to pile, covering and pressing tightly by a plastic cloth, and putting the nutrition fertilizer into a mould pair with the height of 20cm, the width of 15cm and the length of 30cm to form the blocks of the nutrition fertilizer, thereby obtaining the qualified nutrition fertilizer of dicentra spectabilis.

The invention discloses an overheat protection device of a heat absorber for solar energy photothermal conversion. The overheat protection device comprises the heat absorber, a thermoelectric conversion device, an air intake system and a control system; the heat absorber includes a thermal insulation cavity; a heat tube bundle is tightly bonded on the inner wall of the thermal insulation cavity, and is connected with the thermoelectric conversion device; air intake guide pipes and first air collecting tanks are uniformly arranged on the thermal insulation cavity in the peripheral direction; one ends of the air intake guide pipes extend into the thermal insulation cavity, and the other ends are connected with the first air collecting tanks in a sealed mode; the first air collecting tanks are connected with the air intake system in a sealed mode; the control system includes a controller and thermocouples; the multiple thermocouples are uniformly distributed on the heat tube bundle; the thermocouples are electrically connected with the controller; and the controller is connected with the intake system. The device monitors the surface temperature of metal heat tubes in real time; and when the temperature exceeds a heat resisting threshold value of the metal heat tubes, the air intake system is initiated to strengthen the convection loss to reduce the temperature so as to guarantee safe operation of the heat absorber. The invention further discloses an overheat protection method of the heat absorber for solar energy photothermal conversion.

The present invention relates to a repair process for a multiple perforation apparatus used by oil and gas fields, particularly to a repair process for a gun perforator body. The technical scheme comprises the working procedures of cleaning sewage inside the gun, drilling pre-holes, welding and repairing bullet holes, repairing screws, digging lumens, trying out the pressure, drilling blind holes, repairing external surfaces, re-trying out the pressure and painting. The benefits comprise complex process without large-scale equipment, no change to its explosion-proof function due to no change to its gun body repairing materials, low repairing cost and superior steel material saving. The process meets the environmental protection requirement.

The present invention discloses a method of removing astringent tastes of peanut skins. The method comprises the following steps: the peanut skins are soaked using water, the soaked peanut skins are subjected to a microwave pretreatment, tannase is added, then zinc lactate and calcium lactate are added, the mixture is subjected to a microwave assisted enzymatic treatment, the treated mixture is filtered, and the filtered mixture is centrifuged to remove the astringent tastes of the peanut skins to obtain a peanut skin extract free of the astringent tastes. The present invention provides the high-efficient peanut skin astringent taste removing method. The method is good in astringent taste removing effects, at the same time can obtain the peanut skin extract free of the astringent tastes and rich in proanthocyanidin, and can widen the application of the peanut skins in food. The prepared astringent taste removing peanut skins can be applied in the food industry of health-care products, peanut drink, peanut ice cream, peanut milk tea, etc.

The invention relates to a polymethyl methacrylate simulated redwood composite material and a preparation method thereof. The material is a composite material prepared by using softwood as a substrate and introducing a methyl methacrylate monomer to be soaked into the softwood. The preparation method comprises the following steps of: (1) soaking the softwood in an alkali liquor to perform reflux degreasing; (2) taking out the softwood after the degreasing, refluxing the softwood to remove the alkali liquor, and drying the softwood; (3) in a vacuum state at the normal temperature, soaking the softwood in solution of the methyl methacrylate monomer dissolved with a dye for 0.5 to 10 hours; and (4) putting the softwood into a drying apparatus, and performing polymerization to obtain the polymethyl methacrylate simulated redwood composite material. The polymethyl methacrylate simulated redwood composite material prepared by the method improves the density of woods, reduces the water absorption, the swell-shrink characteristics and the sensitivity to climates of the woods, and improves the dimensional stability and the balance of mechanical properties; besides, the preparation method is simple to operate and has a low cost and high economic benefits.

The invention discloses an arundo donax resource utilization method for repairing extremely heavy metal contaminated soil. For the characteristics of low arundo donax utilization rate and low economic value of a traditional arundo donax resource utilization method, the roots and stem leaves of arundo donax are firstly separated and then carbonized respectively, according to different characteristics of the arundo donax, the arundo donax is made into a finished arundo donax root activated carbon product of an indoor adsorbent for civil use and a finished arundo donax stem leaf activated carbon product for industrial use separately, thereby significantly increasing the economic value of the arundo donax; a recycling mechanism is established, and recycled activated carbon is used for comprehensive utilization of non-ferrous metal metallurgy enterprises.

The invention relates to the technical field of food manufacturing, and discloses a double-seafood fish ball and a preparation method thereof. Based on an idea of healthy diet, the invention provides the double-seafood fish ball developed by taking two types of seafood meat and grass carp meat as main materials, taking lard, egg white and egg yolk as auxiliary materials, and taking ginger juice, fistular onion juice and the like as seasoners under the condition of completely abandoning food additives. The selected seafood meat is coarse in meat fiber, insufficient in viscidity and low in economic value; through technology processing, the mouthfeel and the taste of the seafood meat are improved, and the edibleness and the economic value of seafood are increased; by continuous exploratory experiments of the applicant, recipe parameters of the double-seafood fish ball are accurately optimized, and the double-seafood fish ball is formed by being processed with a simple and stable technology; the obtained double-seafood fish ball is bright and clean in color, fine and tender in mouthfeel, and full in elasticity; meanwhile, the original flavor and nutrition of the product raw materials are furthest reserved, the eating needs of different people in various age stages can be met, and good popularization and market values are achieved.

The invention relates to the field of feed processing, in particular to a liquid feed preparation system. The liquid feed preparation system comprises a multifunctional agitating tank, a soaking pool,a mixing pool, a crushing machine and a grinding machine. The crushing machine is fixedly mounted below a large discharging port of the multifunctional agitating tank and communicated with the soaking pool through a discharging pipe of the crushing machine, and the soaking pool is connected with a feeding port of the multifunctional agitating tank through a return pipe with a water pump. A feeding port of the grinding machine is connected with a lower small discharging port of the multifunctional agitating tank through a connection pipe and communicated with the mixing pool through a discharging pipe of the grinding machine. By adoption of feed prepared through the liquid feed preparation system, livestock marketing feed cost is reduced, environmental protection pressure is reduced, diseases are reduced, quick growth and great body shape are realized, and breeding economic benefits are greatly increased.

The invention belongs to a packing paperboard, specially relating to a bluish dogbane- sorghum stalk mixed fiber high-strength packaging paperboard and its preparing method, adopting the following raw materials in weight share: full-stalk bluish dogbane 1 share, sorghum stalks 1 shares, ammonium sulfite 0.3-0.4 share, magnesium oxide 0.03 share, where the liquor ratio is 1 : 2.5-3, and the rest water, cutting the full-stalk bluish dogbane and sorghum stalks into 20 mm-long segments, adding in water for predipping, placing in an evaporating ball or device at twice, deflating to a small extent to achieve the maximum filling quantity, cooking at 0.4Mpa-0.5Mpa at temperature 160-170 deg.C, where the cooking and heat-preserving time is 2-2.5 hours, reducing pressure and deflating, pouring in a bottom tank, making three-stage circulating wash, screening and milling, making paper, and the paperboard strength is largely improved, it can save large amount of timber, and beneficial to greening and environmental protection.

A preparation method of tulip nutrient fertilizer, which is composed of: Morinda officinalis powder, Atractylodes macrocephala powder, Chuanwu powder, plantain seed powder, peanut cake powder, loofah leaf powder, dried rabbit dung, soybean straw powder, taro leaf powder, Cottonseed husk powder, plant ash powder, bone meal, milk powder, pine needle powder, licorice powder, sesame cake powder, brown sugar powder, onion powder, tea dry powder, the percentages described are percentages by weight; effectively overcome the need for segmented fertilization of tulips And multiple times of fertilization, pesticide application and low yield of tulip flower buds, less economic value, leaves withered, falling off, less flowering, small flower buds, small and underdeveloped roots, slow growth, and more likely to cause various diseases and insect pests and wither and die. .

The invention discloses an integrated stereo culturing method. The integrated stereo culturing method comprises the first step of repairing a roof, the second step of establishing a structure, the third step of adding water and soil, the fourth step of planting rice, the fifth step of stocking loach, the sixth step of managing a rice field, the seventh step of breeding livestock, the eighth step of harvesting the rice and collecting the loach, the ninth step of stocking North American white shrimps, the tenth step of selling the shrimps and the livestock and the eleventh step of carrying out circulation cultivation. The stereo culturing method well solves the problem that cultivated land is in shortage, and the yield and quality of the rice are improved; by means of circulation utilization of materials among the animals and plants, pollution to the environment is greatly reduced, the utilization rate of resources is increased, and the environment is protected; in addition, the culturing method has the advantages of being easy to operate, low in cost, good in economic value and high in safety and is suitable for large-area popularization.

The invention discloses a preparation method for double-terminated glycol ether. The preparation method comprises the following steps: a) introducing raw materials containing glycol monoether and monohydric ether alcohol into a reactor for contact and reaction with an acidic molecular sieve catalyst under the conditions that reaction temperature is 50 to 300 DEG C, reaction pressure is 0.1 to 15 MPa, the mass space velocity of the glycol monoether in the raw materials is 0.01 to 15.0 / h, and a mol ratio of monohydric ether alcohol to glycol monoether in the raw materials is 1-100: 1, and separating obtained products so as to obtain a double-terminated glycol ether product, unreacted glycol monoether and monohydric ether alcohol, by-product components and other components; and b) returning the unreacted glycol monoether and monohydric ether alcohol and the by-product components obtained in the step a) to the reactor. The preparation method has the advantages that the catalyst has long single-pass life; the target product, i.e., double-terminated glycol ether has high yield and selectivity; energy consumption in separation of the products is low; by-products have high economic value; production scale can be large or small; and application of the method is flexible.

The invention relates to a preparation method of a pachystachys lutea nutrition fertilizer; and the fertilizer comprises the following components in percentage by weight: 2 to 4 percent of ophiopogon powder, 4 to 6 percent of licorice powder, 1 to 3 percent of pine needle powder, 2 to 4 percent of fritillaria powder, 12 to 14 percent of soybean cake powder, 4 to 6 percent of peanut cake powder, 5 to 7 percent of sesame flour, 6 to 10 percent of corn flour, 5 to 7 percent of wheat bran powder, 8 to 10 percent of soya bean stem meal, 11 to 13 percent of corncob powder, 2 to 4 percent of milk powder, 11 to 13 percent of bone meal, 2 to 4 percent of calcium phosphate potassium and zinc fertilizer, 1 to 3 percent of manganese fertilizer, 1 to 3 percent of ammonium fertilizer, 4 to 6 percent of epoxy resin, 0.2 to 0.4 percent of DuPont fluid, 0.2 to 0.4 percent of chlorothalonil, 0.1 to 0.3 percent of mirex powder and 0.1 to 0.3 percent of novel phytomycin. All the substances are put into a stirrer to be stirred for 180min, taken out and put into a 2 percent particle mill to be milled, taken out again and poured into a fermentation tank to be stacked in piles, and tightly covered and compacted by thick plastic cloth; and the nutrition fertilizer is put into a mould box with the height of 20cm, the width of 15cm and the length of 30cm to be beaten into nutrition fertilizer blocks to obtain the qualified pachystachys lutea nutrition fertilizer.

The invention discloses a method for preparing a nutrient fertilizer for Celosia plumose. The nutrient fertilizer for the Celosia plumose comprises the following components in percentage by weight: 14 to 18 percent of dried excrement, 4 to 6 percent of dried chicken manure, 2 to 4 percent of dried rabbit manure, 12 to 16 percent of soybean cake meal, 18 to 20 percent of bone meal, 1 to 3 percent of zinc phosphate fertilizer, 10 to 12 percent of bran, 10 to 12 percent of corn stalk, 8 to 10 percent of corn meal, 2 to 6 percent of yellow sand, 0.2 to 0.4 percent of carbendazim, 0.2 to 0.4 percent of chlorothalonil, 0.1 to 0.3 percent of oxytetracycline hydrochloride, 0.1 to 3 percent of DuPont methomyl and 4 to 6 percent of epoxy resin. The method comprises the following steps of: stirring all the components into a stirrer for 180 minutes; taking the components out and crushing the components in a 2 percent particle crusher; taking the components out and pouring the components into a fermenting tank to stack, and covering and compacting the components with thick plastic cloth; and forming the nutrient fertilizer in a mold box with the height of 20 centimeters, the width of 15 centimeters and the length of 30 centimeters into nutrient fertilizer blocks so as to obtain the qualified nutrient fertilizer for the Celosia plumose.