74results about How to "Conducive to synergy" patented technology

The invention discloses a graphene oxide-silver compound particle and a preparation method thereof. The graphene oxide and silver compound particle is in a core-shell structure; a core is an organic matter or inorganic matter particle; and a shell is the graphene oxide-silver compound particle. The preparation method particularly comprises the following steps of: preparing a water solution containing graphene oxide; preparing a suspension solution of the organic matter or inorganic matter particle; preparing the core-shell structure compound particle covered by graphene oxide on the surface; mixing the core-shell structure compound particle covered by graphene oxide on the surface with a silver nitrate solution; adding a reducing agent to carry out one-step reduction reaction under a nitrogen atmosphere; and naturally cooling a reaction solution to a room temperature, centrifuging, washing and drying to obtain the graphene oxide-silver compound particle. According to the graphene oxide-silver compound particle and the preparation method thereof disclosed by the invention, the performance of the finally-obtained graphene oxide-silver compound particle is very good, the utilization amount of the reducing agent used in a preparation process is less and the production cost is low.

The invention provides a blow molding type halogen-free flame-retardant polypropylene material, which comprises the following components in part by weight: 100 parts of polypropylene, 40 to 85 parts of phosphorus-nitrogen series expanded halogen-free composite flame retardant, 3 to 20 parts of resin modifier, 0.05 to 0.5 part of pigment, 0.4 to 2.0 parts of antioxidant, 0.3 to 2.0 parts of ultraviolet absorbent, 0.3 to 2.0 parts of light stabilizer, and 1.0 to 3.0 parts of other processing aids. The material has good tensile strength, high impact strength, good low-temperature performance and excellent flame-retardant performance, and is particularly suitable for hollow blow molding type small and large components of automobiles, furniture and the like.

The invention discloses a preparation method for alicyclic epoxy and double bond contained dual-curing resin and an application thereof. The alicyclic epoxy and double bond contained dual-curing resin comprises acrylate double bonds (ultraviolet free radical curing) and alicyclic epoxy group (ultraviolet cation curing or thermocuring). The resin containing dual curing groups can realize ultraviolet free radical and cation dual curing or ultraviolet and thermal dual curing, curing is quick, cured membranes are high in flexibility, curing volume shrinkage is low, and the resin is high in adhesive force and can be used for dual curing of paint, adhesives and ink.

The invention discloses a catalyst system for sulfur-hydrocarbon-containing desulfurization, a sulfur-hydrocarbon-containing desulfurization method using the catalyst system and a device for implementing the method. The catalyst system comprises a desulfurization auxiliary and a monolithic catalyst, wherein the active ingredient coating of the monolithic catalyst comprises 30-90wt% of active metal and 10-70wt% of substrate; the desulfurization auxiliary comprises 5-35wt% of alumina, 5-35wt% of a silicon oxide source and 30-90wt% of oxide of at least one metal of IIB, VB and VIB families; the desulfurization auxiliary is microspheres having average grain size of 20-200 microns; the weight ratio of the desulfurization auxiliary to the active ingredient coating of the monolithic catalyst is (1-9):1. The catalyst system provided by the invention has better desulfurization activity and desulfurization stability.

The invention relates to the field of desulfurization, and particularly discloses a catalyst system for desulfurization of sulfur-containing hydrocarbon. The catalyst system is applied to a method for desulfurization of sulfur-containing hydrocarbon. The catalyst system comprises a desulfurization assistant and a monolithic catalyst, wherein the monolithic catalyst comprises a monolithic carrier and an active component coating distributed on the inner surface and / or outer surface of the carrier; with the total weight of the active component coating as the standard, the active component coating contains 30-90% by weight of active metal and 10-70% by weight of matrix, and the active metal is VIIB group metals and / or VIII group metals; with the total weight of the desulfurization assistant as the standard, the desulfurization assistant contains 5-35% by weight of aluminum oxide, 0.5-10% by weight of rare earth oxide, 5-35% by weight of monox source and 30-89.5% by weight of oxide of at least one kind of metal in IIB group, VB group and VIB group, and the desulfurization assistant is microspheres with average grain size being 20-200 microns. The catalyst system has higher desulfurization activity and desulfurization stability.

The invention discloses a high-selenium nutritive supplement for enhancing immunity and assisting in tumor recovery. The high-selenium nutritive supplement is characterized by being prepared from the following raw materials in percentage by weight: 10-30% of selenium-enriched plants or extracts thereof, 60-80% of functional ingredients or extracts thereof and 5-20% of auxiliary materials, wherein the selenium-enriched plants include selenium-enriched broccoli, selenium-enriched wild cabbages, selenium-enriched shepherd's purse and the like, the functional ingredients include yacon, konjak, bitter gourds, poria cocos, dandelions, purslane herbs and the like, and the auxiliary materials include sorbitol, mannitol, erythritol and the like. The high-selenium nutritive supplement is prepared through a powder direct tabletting technology or a powder direct mixing and bagging technology. The high-selenium nutritive supplement disclosed by the invention is safe and purely natural; and selenium-enriched raw materials and other functional ingredients are in a scientific compounding ratio, so that the immune functions of organisms are effectively improved, and the high-selenium nutritive supplement contributes to assisting in tumor recovery and has considerable economic benefits and social benefits.

The invention relates to the field of desulfurization and particularly discloses a sulfur-hydrocarbon-containing desulfurization catalyst system. The catalyst system is used for a sulfur-hydrocarbon-containing desulfurization method. The catalyst system includes a desulfurization additive and a monolithic catalyst. The active component coating of the monolithic catalyst contains, by weight, a transition metal promoter 30-90% and a substrate 10-70%. The transition metal promoter is group VIIB and / or VIII metals. The substrate contains, by weight, a phosphorus aluminum molecular sieve 70-90% and a silica binder 10-30%. The desulfurization additive contains, by weight, aluminum oxide 5-40%, a silicon oxide source 5-40% and oxide of at least one of metals of groups IIB, VB and VIB 30-90%, and the desulphurization additive is microspheres with the average particle size of 20-200 microns. The weight ratio of the desulfurization additive to the active component coating of the monolithic catalyst is 1-9 to 1. The catalyst system can have good desulfurization activity and desulfurization stability.

The invention relates to a neck pillow which comprises a pillow core, a pillowcase and a hard pillow base, wherein the integral pillow base is a hard and strip-shaped cuboid, the pillow core is filledin the main case of the pillowcase during utilization, and the pillowcase is wrapped around the hard pillow base into a cylindrical pillow body which is fixed by fixing pieces. An inner cavity used for placing assistant objects during utilization is arranged in the hard pillow base, and ventilation holes are drilled in the hard pillow base. The assistant objects comprise two conical column-shapedpermanent magnets and two blocks of traditional Chinese medicine combination. Due to the support of the hard pillow base, the invention can keep the body of the pillow away from deformation during utilization and can support necks; the traditional Chinese medicines and the permanent magnets can play a role in cooperation between magnet therapy and the effect of the traditional Chinese medicines,and the invention is favorable for preventing and curing cervical spondylosis, can be also pillowed for waists by changing the position of the hard pillow base.

The invention relates to a petroleum-degrading bactericide and also relates to a preparation method of the petroleum-degrading bactericide. The preparation method of the petroleum-degrading bactericide comprises the following steps: (1) performing enlage cultivation on such bacteria as caulobacter segnis, candida parapsilosis, brachybacterium phenoliresistens, arthrobacter globiformis and sporidiobolus salmonicolor till the concentration of the bacteria is 10<9>-10<10> cfu / g, and uniformly mixing according to the mass ratio of 3: 2: 2: 1: 1 to obtain a mixed culture; (2) fermenting the mixed culture in a liquid fermentation culture medium for 48-60 h; (3) carrying out centrifugal separation to obtain thick strain cells; (4) uniformly mixing the thick strain cells with a 0.9% NaCl solution and a sea mud leachate; (5) adding nutrient substances, and then preserving at 4 DEG C in a sealed manner. The petroleum-degrading bactericide is high in petroleum degradation rate.

The invention discloses a preparation process for a novel red-rooted salvia root ultrafine powder particle traditional Chinese medicine decoction piece. The process includes the following steps: washing of red-rooted salvia roots, rough processing of red-rooted salvia roots, drying, material inspection, low-temperature ultrafine grinding, pelletization, semifinished product inspection, packaging and the like. The process is strictly controlled in order to guarantee the safety and acceptability of the finished product, and the red-rooted salvia root ultrafine powder particle traditional Chinese medicine decoction piece prepared by the process can be blended into suspension, soak or decoction and taken. Since ultralow-temperature grinding is used by the preparation process, the natural medicinal ingredients of the red-rooted salvia root are kept, the prepared traditional Chinese medicine decoction piece can be rapidly dissolved out, the dissolution amount is large, the extract content of the traditional Chinese medicine decoction piece is more than 20 percent higher than the extract content of the conventional decoction piece when the extract determination method of Chinese pharmacopoeia (2011 edition) is used for measurement, and thereby medicinal material resources are greatly saved; the time of decocting the traditional Chinese medicine decoction piece is shortened by more than five times in comparison with the time of decocting the conventionally formulated decoction piece; excipients are not added, and the physical and chemical properties of the red-rooted salvia root are not changed; and because the traditional Chinese medicine decoction piece is packaged in a porous soak bag and an aluminium foil bag, the decoction piece cannot be damped.

The invention discloses a catalyst system for sulfur-containing hydrocarbon oxidative desulfurization and a sulfur-containing hydrocarbon oxidative desulfurization method. The catalyst system comprises a regular structure catalyst and a sulfur oxide removing assistant, wherein an active ingredient coating of the regular structure catalyst comprises 30-90wt% of active metal oxide and 10-70wt% of matrix; the sulfur oxide removing assistant comprises 5-35wt% of alumina, 5-35wt% of a silicon oxide source and 30-90wt% of an oxide selected from at least one metal in group IIA; the sulfur oxide removing assistant refers to microspheres with the mean particle size of 20-200microns; a weight ratio of the sulfur oxide removing assistant to the active ingredient coating of the regular structure catalyst is (10-90):1. The catalyst system provided by the invention has excellent desulfurization activity and desulfurization stability.

A solvothermal linkage polymerization method for preparing polymer composite electrode material features that a simple one-step solvothermal linkage polymerization method is used to prepare polymer composite electrode material with good electrochemical performance. The method specifically comprises the following steps: solvothermal reaction is carried out on a mixed liquid containing a polymer monomer, a material A and an initiator at a certain reaction temperature; The reactant is then washed and dried, A material A is a carbon-based material, a metal compound, or a mixture of that carbon-based material and the metal compound, and the correspond polymer composite electrode material is a carbon / polymer composite electrode material, a metal oxide / polymer composite electrode material, and acarbon / metal oxide / polymer ternary composite electrode material.

The invention provides a preparation method of a porous CuO-CeO2 dual-metallic oxide catalyst. The preparation method applies a novel combustion method of combining a traditional combustion method and a silicon dioxide colloid particle plate, mixes cerate, copper salt, a silicon dioxide colloid particles template and glycine to spontaneously burn under 150 DEG C; removes silicon dioxide by corroding sodium hydroxide solution; thus the porous CuO-CeO2 dual-metallic oxide catalyst is obtained. The porous CuO-CeO2 dual-metallic oxide catalyst prepared by the method is big in output and high in purity; ratio of every component and aperture are easy to control. The method is simple and easy to practice, small in pollution, low in cost and has certain universality. The prepared porous CuO-CeO2 dual-metallic oxide catalyst has the advantage of porous geological structure, and CeO2 is tightly contacted with CuO, so that the synergistic effect between CeO2 and CuO can be well displayed, CeO2 and CuO have excellent catalytic activity in CO catalytic reaction.

The invention relates to a method for preparing clean fuels, namely, dimethyl ether and methanol, simultaneously in one reaction process, which belongs to the technical field of energy resources. The method comprises the following process steps of: firstly, taking magnesium acetate as a precursor of magnesium, modifying a methanol dehydrating catalyst HZSM-5 molecular sieve by adopting an immersion method and drying to obtain modified MgO-HZSM-5 molecular sieve catalyst; and then, obtaining the catalyst CuO-ZnO-Al2O3-ZrO4 / MgO-HZSM-5 with the dual functions of methanol synthesis and methanol dehydration from the modified molecular sieve catalyst by adopting a coprecipitation deposition method; and finally, putting the catalyst in a high-pressure slurry reactor, taking medical paraffin oil as an inertia liquid-phase medium, and introducing H2 and CO2 so as to generate the fuel, namely, the dimethyl ether, and the byproduct, namely, the methanol, after the reaction. The invention has the advantages of short process flows, simple operation and method, low energy consumption, no pollution and low production cost and can increase the economical efficiency of CO2 chemical utilization and reach the goal of changing waste into valuable.

The invention provides a polyaniline electromagnetic shielding material based on cellulosic fibers and a preparation method of the electromagnetic shielding material. The material is of a core-shell structure taking the cellulosic fibers as the core and taking doped polyaniline as the shell. The specific preparation method comprises the following steps: mixing cellulosic fibers with aniline monomers for standing, adding the mixture into an acid doped solution so as to form a solution A; dissolving an oxidizing agent into the acid doped solution so as to form a solution B, and cooling the solution A and B to the temperature of 10 DEG C below zero to 0 DEG C for later use; slowly dripping the solution B into the solution A, carrying out an oxidative polymerization reaction under the temperature of 10 DEG C below zero to 0 DEG C, filtering and washing the reaction product, and performing vacuum drying, thereby obtaining the polyaniline electromagnetic shielding material based on cellulosic fibers. Sugarcane fibers and straw fibers are taken as reaction materials, the production cost is low, the adopted in-situ chemical oxidation method is simple in conditions, the operability is high, the prepared electromagnetic shielding material is regular in arrangement of the doped polyaniline, high in degree of crystallinity and high in conductivity, has one-dimensional fiber morphology and is convenient to be overlapped to form a conductive network, and the electromagnetic shielding performance of the material is improved.

The invention belongs to the technical field of hot-melt pressure-sensitive adhesive, and relates to an SIS-g-PEO thermoplastic elastomer made of styrene-isoprene-styrene block polymer grafted polyoxyethylene ether as well as an amphiphilic hot-melt pressure-sensitive adhesive. An SIS block polymer grafted hydrophilic chain segment is subjected to chemical modification, so that the thermoplastic elastomer has good release performance on hydrophilic / lipophilic components. The amphiphilic hot-melt pressure-sensitive adhesive prepared by SIS-g-PEO has good adhesion performance, releases hydrophilic / lipophilic components together, has good moisture absorption, and is suitable for being used as pressure-sensitive adhesive medicine carrying substrate of a transdermal patch.

The invention relates to improved fire-retardant coating. The improved fire-retardant coating is prepared from the following components in parts by weight: 8-25 parts of film forming agent, 0.5-5 parts of inorganic hollow filler, 5-36 parts of acid donor, 2-28 parts of carbon donor, 1-21 parts of a foaming agent, 1-8 parts of synergist, 10-20 parts of melamine, 20-40 parts of deionized water, 2-10 parts of talc powder, 5-20 parts of sodium silicate, 5-10 parts of titanium dioxide, 1-5 parts of expanded vermiculite, 1-5 parts of pentaerythritol and 1-10 parts of mica powder. The improved fire-retardant coating has the advantages that the adhesive strength can be remarkably improved since the adhesive force of the fire-retardant coating is less than 1 grade; the fire retardant time of the fire-retardant coating is between 30 and 35 minutes at a high temperature of 800 DEG C, so that the high temperature resistance is remarkably reinforced, more valuable time is gained for rescuing and fire extinguishing; and the production cost is low, and the manufacture method is simple.

The invention belongs to the field of preparation and application of flos carthami Xiaoyao tablets, and particularly relates to a flos carthami Xiaoyao preparation for treating breast cancer as well as a preparation method and an application of the flos carthami Xiaoyao preparation. The flos carthami Xiaoyao preparation is prepared from raw materials in parts by weight as follows: 18-67 parts of radix angelicae sinensis, 100-150 parts of radix paeoniae alba, 30-55 parts of rhizoma atractylodis macrocephalae, 105-135 parts of poria cocos, 110-160 parts of flos carthami, 20-35 parts of spina gleditsiae, 80-140 parts of herba bupleuri, 45-85 parts of herba menthae and 20-75 parts of radix glycyrrhizae. The drug has a better breast cancer treatment effect, the flos carthami Xiaoyao preparationprepared with the specific method can bring the useful effect of the drug into full play, and besides, the flos carthami Xiaoyao preparation has a good regulating effect on female internal secretion.

The invention relates to the field of desulfurization, and specifically discloses a catalyst system for desulfurization of sulfur-containing hydrocarbons. The catalyst system is used for a method for desulfurization of sulfur-containing hydrocarbons. The catalyst system includes a desulfurization assistant and a regular structure catalyst; the active component coating of the regular structure catalyst contains 30-90 wt % of a transition metal promoter and 10-70 wt % of a matrix; the matrix contains 70-90 wt % At least one of molecular sieves of BEA structure and FAU structure in % by weight and 10-30% by weight of silica binder; the desulfurization aid contains 5-40% by weight of alumina, 5-40% by weight of silica source and 30-90% by weight of oxides of at least one metal in groups IIB, VB and VIB, the desulfurization aid is microspheres with an average particle size of 20-200 microns; the desulfurization aid and the regular The weight ratio of the active component coating of the structural catalyst is 1-9:1. The catalyst system provided by the invention can have better desulfurization activity and desulfurization stability.

The invention relates to the field of desulfurization, and specifically discloses a catalyst system for desulfurization of sulfur-containing hydrocarbons, which is used in a method for desulfurization of sulfur-containing hydrocarbons. The catalyst system comprises a desulfurization aid and a regular structure catalyst; the active component coating of the regular structure catalyst contains 30-90% by weight of active metal and 10-70% by weight of a substrate; the desulfurization aid contains 5-35 % by weight of at least one metal oxide in groups IVB and IVA, 0.5-10% by weight of rare earth oxides, 5-35% by weight of a silicon oxide source and 30-89.5% by weight of at least one of groups IIB, VB and VIB A metal oxide, the desulfurization aid is a microsphere with an average particle diameter of 20-200 microns; the weight ratio of the desulfurization aid to the active component coating of the regular structure catalyst is 1-9:1 . The catalyst system provided by the invention can have better desulfurization activity and desulfurization stability.

The invention discloses muscle and bone cream which is prepared from the following raw material components in parts by weight: 3 to 8 parts of radix aconiti, 3 to 8 parts of radix aconiti kusnezoffii, 3 to 8 parts of fructus chaenomelis, 10 to 20 parts of zaocys, 10 to 20 parts of bungarus parvus, 3 to 8 parts of semen strychni, 3 to 8 parts of radix angelicae dahuricae, 3 to 8 parts of resina ferulae, 5 to 10 parts of radix achyranthis bidentatae, 5 to 10 parts of olibanum, 5 to 10 parts of myrrh, 3 to 8 parts of dragon's blood, 3 to 8 parts of radix et rhizoma rhei, 1 to 10 parts of radix astragali seu hedysari, 3 to 8 parts of radix dipsaci, 3 to 8 parts of tuberculate speranskia herb, 2 to 6 parts of Chinese angelica, 3 to 8 parts of poria cocos, 3 to 8 parts of rhizoma chuanxiong, 5 to 10 parts of dried body of ground beetle, 4 to 10 parts of flos carthami, 3 to 8 parts of cortex eucommiae, 4 to 10 parts of Chinese viscum herb, 3 to 8 parts of rhizoma sparganii, 3 to 8 parts of radix linderae, 3 to 8 parts of semen momordicae, 5 to 10 parts of radix notoginseng, 3 to 8 parts of bighead atractylodes rhizome, 300 to 400 parts of minium and 500 to 800 parts of sesame oil. The prepared muscle and bone cream has effects of dispelling wind, eliminating dampness, dredging meridians and collaterals and relieving pain and has obvious treating effects on joint pain and inconvenient movement which are caused by acute and chronic rheumatism and traumatic injury, cervical spondylosis, prolapse of lumbar intervertebral disc, spur, scapulohumeral periarthritis, waist and knee osteoarthritis, light fracture and the like. The muscle and bone cream provided by the invention is convenient to prepare, convenient to apply, quick in effect and definite in treating effect and has a good application prospect.

The invention discloses spring steel with good heat resistance and impact resistance and a production method thereof, and belongs to the technical field of spring steel production. The spring steel comprises the following chemical components of, in percentage by weight, 0.50 %-0.60 % of C, 1.60 %-2.20 % of Si, 0.80 %-1.00 % of Mn, 0.80 %-1.30 % of Cr, 0.20 %-0.50 % of Mo, 0.70 %-1.30 % of W, 0.20%-0.40 % of V, 0.02 %-0.04 % of Nb, 0.015 %-0.030 % of Ti, 0.15 %-0.30 % of Ni, 0.15 %-0.30 % of Cu, trace-0.015 % of P, trace-0.010 % of S, less than or equal to 0.0012 % of O, less than or equal to0.006 % of N and the balance Fe and other inevitable impurities. The production method of the spring steel comprises the steps of electric arc furnace smelting, LF furnace refining, RH or VD vacuum degassing, round billet continuous casting, square billet rolling, flaw detection, scaling, high-speed wire rod controlled rolling, stelmor cooling wire controlled cooling treatment and heat treatment.According to the technical scheme, the obtained spring steel has good heat resistance, impact resistance and hydrogen embrittlement fracture resistance, and therefore the use requirements of the spring steel at high temperature and high pressure can be effectively met.

The present invention relates to a novel fireproof coating material, which is prepared from the following components by weight: 8-25 parts of a film-forming agent, 0.5-5 parts of an inorganic hollow filler, 5-36 parts of an acid donor, 2-28 parts of a carbon donor, 1-21 parts of a foaming agent, 1-8 parts of a synergist, 60-80 parts of an acrylate elastic emulsion, 1-9 parts of nanometer silicon oxide, 2-10 parts of ethylene glycol, 5-15 parts of silicate glass, 1-5 parts of a titanate coupling agent, 1-8 parts of a defoamer, 1-8 parts of dodecyl alcohol ester, 2-12 parts of a flame retardant agent, 3-13 parts of heavy calcium carbonate, 2 parts of titanium dioxide, 1-8 parts of diantimony trioxide, and 3-12 parts of water. The fireproof coating material of the present invention is the halogen-free fireproof coating material, and has advantages of good environmental protection, long-time fire resistance, high flame retardant efficiency, and the like.

The invention discloses a hollow-structure CuCeOx bimetallic oxide catalyst and a preparation method thereof. The catalyst is prepared from a cerium salt and a copper salt through one-step hydrothermal and calcinations processes. The preparation method comprises the following steps: 1, weighing the cerium salt and the copper salt in proportion, adding the cerium salt and the copper salt into a glucose solution, and performing stirring to obtain a uniformly mixed solution for later use; 2, transferring the solution obtained in step 1 into a polytetrafluoroethylene stainless steel hydrothermal kettle, heating the kettle to a preset temperature, carrying out a constant temperature reaction, and cooling, washing and drying the obtained reaction product after the reaction is completed in orderto obtain a carbon-assisted CuCeOx precursor composite material; and 3, calcining the composite material sample obtained in step 2 in a muffle furnace to obtain the hollow-structure CuCeOx bimetallicoxide catalyst. The hollow-structure CuCeOx bimetallic oxide catalyst prepared by the method has the advantages of small particle size, and easiness in regulation and control of the proportion of eachcomponent. The method has the advantages of simplicity, easiness in enforcement, low pollution, low cost and certain universality.

The invention belongs to the technical field of water-based ink, and discloses a gravure printing water-based ink and a preparation method thereof. The present invention adopts (meth)acrylic ester monomer and (meth)acrylic acid monomer to obtain aqueous acrylic resin emulsion through emulsion polymerization and adding amino polystyrene microsphere cross-linking reaction; Body emulsion and amino-terminated hyperbranched polysiloxane are grafted to obtain hyperbranched polysiloxane modified waterborne polyurethane emulsion; then the above two adhesives are mixed with pigments, functional additives and water evenly to obtain the obtained Water-based ink for gravure printing. The present invention uses amino polystyrene microspheres to carry out cross-linking modification on polyacrylic acid adhesives, and uses hyperbranched polysiloxane to carry out graft modification on polyurethane adhesives, and through the synergistic cooperation of the two adhesives, The obtained water-based ink has good glossiness and binding force, and has outstanding wettability to plastic substrates.

The invention relates to the field of desulfurization and particularly discloses a sulfur-hydrocarbon-containing desulfurization catalyst system. The catalyst system is used for a sulfur-hydrocarbon-containing desulfurization method. The catalyst system includes a desulfurization additive and a monolithic catalyst. The active component coating of the monolithic catalyst contains, by weight, active metal 30-90% and a substrate 10-70%. The desulfurization additive contains, by weight, at least one metal oxide of groups IVB and IVA metal 5-35%, rare earth oxide 0.5-10%, silicon oxide source 5-35% and oxide of at least one of metals of groups IIB, VB and VIB 30-89.5%, and the desulphurization additive is microspheres with the average particle size of 20-200 microns. The weight ratio of the desulfurization additive to the active component coating of the monolithic catalyst is 1-9 to 1. The catalyst system can have good desulfurization activity and desulfurization stability.

The invention discloses an environment-friendly preservative. The environment-friendly preservative comprises the following components in parts by weight: 35-50 parts of triazole nucleoside carboxylicacid modified hyperbranched polylysine, 2-5 parts of choline borate, 0.5-1.5 parts of lecithin, 4-7 parts of graphene, 0.5-1.5 parts of sodium glycyrrhetate, 6-10 parts of an antiseptic Chinese herbal medicine extract, 1-2 parts of a celery extract, 1-2 parts of a Hamamelis virginiana extract, 10-20 parts of ethanol and 150-200 parts of deionized water. The invention also provides a preparation method of the environment-friendly preservative. The environment-friendly preservative disclosed by the invention has obvious preservative effect, diverse performance, wide range of wood rot bacteria and insects resistance, stable performance in the process of storage and transportation, and safe and environment-friendly use.

The invention belongs to the technical field of aquaculture, and relates to an immunopotentiator for preventing and treating channel catfish ichthyophthiriasis and a preparation method thereof.The immunopotentiator for preventing and treating channel catfish ichthyophthiriasis is prepared from, by mass, 38-44 parts of torillis japonica, 30-35 parts of sun euphorbia herbs, 30-35 parts of acorus calamus, 30-35 parts of polygonum orientale L., 30-35 parts of houttuynia cordata, 27-33 parts of cluster mallow, 26-32 parts of Chinese milk vetch, 26-32 parts of dandelions, 25-32 parts of fructus cnidii, 24-30 part of portulaca oleracea, 22-28 parts of red sage, 18-26 parts of Siberian cocklour fruits, 18-26 parts of wrinkled gianthyssop herbs and 17-24 parts of honeysuckle.The immunopotentiator is added into feedstuff to feed channel catfishes with the disease, so that the channel catfish ichthyophthiriasis is effectively prevented and treated.

The invention belongs to the technical field of fresh-keeping flowers, and in particular relates to a fresh-keeping agent for fresh flowers; the invention also relates to a preparation method of the fresh-keeping agent for fresh flowers. The fresh-keeping agent for fresh flowers of the present invention is prepared from the following components: decocting liquid of mugwort leaf, decocting liquid of cortex Moutan and bark of Vitex, green tea extract, pitaya peel, ginger, mulberry leaf, pagoda tree flower, nanoscale shell powder, Purified water, sucrose, sorbic acid, diatomaceous earth. The advantage of the present invention is that the fresh-keeping agent for fresh flowers prepared by the present invention not only has good fresh-keeping effect, but also uses green natural raw materials, and the prepared fresh-keeping agent for fresh flowers is safe, non-toxic and easy to degrade.