64results about How to "Long-term activity" patented technology

The present invention is directed to an iron-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the iron-promoted zeolite beta is treated so as to provide increased amounts of the iron promoter in the form of Fe(OH).The stabilized zeolite is formed by cation exchange of an iron salt into a zeolite beta which has a reduced sodium content such as by exchanging a sodium beta with ammonium or hydrogen cations. A zeolite beta having a reduced carbon content and a Si / Al ratio of no more than 10 also increases the Fe(OH) content of the iron-promoted catalyst. The iron-promoted catalyst which has the iron in the form of Fe(OH) is characterized by a peak at 3680±5 cm−1 in the IR spectra.

The invention relates to a biological detergent composition. The biological detergent composition is prepared from a biological surfactant, a plant surface active agent, a biological enzyme and at least one washing auxiliary material. In the biological detergent, the biological surfactant is compounded with the plant surface active agent, the biological enzyme and other adjuvant agents. The detergent is reasonable in formula, the total content of active matters is high, and through complex synergism, the washing effect can fully meet the needs of people.

The invention relates to a compound microbial preparation for promoting paddy growth and a preparation method thereof. The compound microbial preparation for promoting paddy growth is characterized by consisting of 20-40 parts by weight of a microbial strain culture and 60-80 parts by weight of a microbial carrier; wherein, the microbial strain culture consists of the following raw materials in parts by weight: 2-8 parts of bacilli subtilis, 2-8 parts of bacilli megaterium, 5-10 parts of saccharomyces cerevisiae and 1-4 parts of rhizobia; the microbial carrier is zeolite or bentonite or mixture thereof. The compound microbial preparation has the advantages of promoting growth of beneficial microbes, enhancing absorption of nitrogen, phosphorous, potassium and other organic substances for paddy root system and promoting normal growth of the root system, thus promoting the paddy growth and reducing chemical fertilizer application.

The application provides lactobacillus plantarum LP4; the microbial preservation number of the lactobacillus plantarum LP4 is CGMCC No. 14533. The application also provides a method for preparing lactobacillus plantarum LP4 freeze-dried powder, and the lactobacillus plantarum LP4 freeze-dried powder prepared by using the method; according to the method, the lactobacillus plantarum LP4 is coated before being freeze-dried, and multiple protective agents are used in a combined way; in particular, after the surface of the lactobacillus plantarum LP4 is coated for the first time, secondary coatingis performed, so that the defect of incomplete coating which is possibly caused during the first coating can be overcome; a completely dense protective layer is at least formed on the surface of the lactobacillus plantarum LP4 and forms a microcapsule structure together with a thallus, so that the lactobacillus plantarum LP4 thallus is effectively isolated from the external environment, and a stable internal environment is formed inside the microcapsule; therefore, the lactobacillus plantarum LP4 is enabled to maintain viability under the room temperature condition.

The present invention is directed to an iron-promoted zeolite beta catalyst useful in the selective catalytic reduction of nitrogen oxides with ammonia in which the iron-promoted zeolite beta is treated so as to provide increased amounts of the iron promoter in the form of Fe(OH). The stabilized zeolite is formed by cation exchange of an iron salt into a zeolite beta which has a reduced sodium content such as by exchanging a sodium beta with ammonium or hydrogen cations. A zeolite beta having a reduced carbon content and a Si / Al ratio of no more than 10 also increases the Fe(OH) content of the iron-promoted catalyst. The iron-promoted catalyst which has the iron in the form of Fe(OH) is characterized by a peak at 3680±5 cm−1 in the IR spectra.

A lead-acid battery activator characterized in that alkali polyacrylate solid particles are dispersed in the sulfuric acid aqueous solution, which is intended to extend the battery life by preventing the sulfation of negative electrode, and a lead-acid battery using said activator.

The invention relates to a regeneration cleaning agent for a three-way catalytic converter, which can reactivate the three-way catalytic converter, prolong the service life of the three-way catalytic converter, increase automobile power and reduce oil consumption. The regeneration cleaning agent comprises the following components in percentage by weight: 40 to 60 percent of methyl alcohol, 20 to 40 percent of ethanol, 5 to 10 percent of methylbenzene and 5 to 10 percent of cyclohexane, wherein the methyl alcohol and the ethanol play a main role in generating oxygen ions during the combustion of an engine combustor, and the methylbenzene and the cyclohexane play a main role in generating alkyl free radicals during the combustion of the engine combustor; and the surface superstrata of the three-way catalytic converter can be more effectively removed by combining the oxygen ions and the alkyl free radicals. A method for preparing the regeneration cleaning agent comprises the step of mixing the raw materials at room temperature, and then stirring the mixed raw materials fully and uniformly.

The present invention relates to new and improved interleukin-7 polypeptides, as well as compositions comprising the same, their preparation and uses. The invention more particularly relates to hyperglycosylated IL-7 polypeptides having improved properties, as well as their manufacture and therapeutic uses. The invention also discloses novel IL-7 polypeptides having modified amino acid sequences containing artificially created glycosylation site(s), as well as corresponding nucleic acid molecules, vectors and recombinant host cells. The invention also relates to the use of such polypeptides, cells or nucleic acids for curative or preventive treatment of mammalian subjects, including human subjects.

The invention relates to a rare earth pollution repairing technology and particularly relates to an immobilized mixed fungicide for repairing rare earth polluted soil and a preparation method of the immobilized mixed fungicide. According to the method, bacillus megatherium and bacillus mucilaginosus are selected as the mixed fungicide for repairing rare earth polluted soil, the activity of the mixed fungicide can be kept for a long time by the immobilization technology, and the mixed fungicide has a high-efficiency performance stably in a complex environment. According to the technology, the bacillus megatherium and bacillus mucilaginosus not only can adsorb rare earth ions, but also can carry out potassium and phosphorus release and nitrogen fixation, and improve the fertility of soil; soil hardening can be prevented; soil moisture can be prevented from being evaporated. Crop byproducts are adopted as a carrier for immobilization, the sources are wide, the cost is low and the operation is simple. Not only can wastes be utilized, but also the crop byproducts can be used as a biofertilizer so as to provide various nutrients. Due to the technology, not only can be rare earth polluted soil be effectively repaired, but also the repaired soil is suitable for the growth of plants and the like.

The invention provides a method for preparing an ionic rare earth mine tailing in-situ remediation plant nursing system. The method utilizes agricultural waste as a biomass carrier and a Bacillus amyloliquefaciens H47 strain as a plant growth promoting inocula which is preserved in the China center for type culture collection on June 24, 2013 and has a preservation number of CCTCC NO: M2013283 to prepare the ionic rare earth mine tailing in-situ remediation plant nursing system. Through immobilization of the biomass carrier, activity of the plant growth promoting inocula can be kept for a long time and the plant growth promoting inocula can produce stable and efficient action in a complex environment. The system can improve soil fertility and prevents soil hardening and fast soil moisture evaporation. The system utilizes the agricultural waste biomass carrier and has a wide source, a low cost and simple processes. The system realizes waste utilization, can be used as bio-fertilizer, and provides various nutrients for a plant. Through the system, the restored soil is suitable for plant growth.

The invention provides a catalyst component for olefin polymerization. The catalyst component comprises elemental magnesium, elemental titanium, halogen and internal electron donors, wherein the internal electron donors are composed of a ketoimine compound as shown in a formula I which is described in the specification and an alcoholic ester compound as shown in a formula II which is described inthe specification. The invention also provides a catalyst component for polymerization of propylene. The catalyst comprises A) the catalyst component; B) an organo-aluminum compound; and C) an optional organo-silicon compound. The invention further provides application of the catalyst component and catalyst to the field of polymerization of propylene. As applied to polymerization of propylene, such a catalyst system has high long-period activity and orientation capability and good hydrogen sensitivity; and a prepared polymer is wide in molecular weight distribution.

The invention relates to a method of preparing a solid molyadate catalyst. Ammonium paramolybdate, i.e. (NH4)6MoO24.4H2O is taken as the active component of the catalyst, and then fixed on a compound carrier which is formed by that silica gel or sillitin forcibly absorbs chitosan. 0.1 percent to 0.5 percent (NH4)6MoO24.4H2O water solution is taken to react with particles of the compound carrier in 70 DEG C to 90 DEG C ethyl alcohol under 70 DEG C to 85 DEG C (V / V) temperature for 1 to 4 hours, which is dried to prepare the solid catalyst with high activity. The prepared solid molyadate catalyst is used for isomeric 50 percent (W / W) glucose solution, which is reusable for at least 10 times, with the activity still above 80percent.

The invention provides a catalyst component for olefin polymerization. The catalyst component comprises elemental magnesium, elemental titanium, halogen and internal electron donors, wherein the internal electron donors are composed of a ketoimine compound as shown in a formula I which is described in the specification and an aromatic ester compound as shown in a formula II which is described in the specification. The invention also provides a catalyst component for olefin polymerization. The catalyst comprises A) the catalyst component; B) an organo-aluminum compound; and C) an optional organo-silicon compound. The invention further provides application of the catalyst component and catalyst to the field of polymerization of olefins, especially propylene. As the catalyst component or catalyst is applied to polymerization of propylene, the catalyst is obviously improved in hydrogen sensitivity and has high activity and long-period activity; and a prepared polymer is wide in molecular weight distribution.

The invention discloses a serum-free medium for CHO cells, which comprises the following raw materials: alanine, arginine, aspartic acid, asparagine, cystine, cysteine, glutamine, glutamine Acid, glycine, histidine, etc., calcium chloride, magnesium sulfate, potassium chloride, potassium dihydrogen phosphate, disodium hydrogen phosphate, sodium bicarbonate, sodium hydroxide, ferrous sulfate heptahydrate, magnesium chloride hexahydrate, copper sulfate , sodium pyruvate, manganese dichloride, etc., nicotinamide, p-aminobenzoic acid, folic acid, ribose, uracil, lipoic acid, linoleic acid L, cholesterol, dexamethasone, yeast hydrolyzate, milk protein hydrolyzate, casein protein hydrolyzate. The medium of the present invention does not contain serum components at all, which is beneficial to the purification process of proteins; CHO cells do not need to go through the adaptation process of reducing serum; they can maintain cell activity for a long time, prolong the production time of protein expression, and greatly reduce the cost of serum-free medium. Cost, reduce production cost for enterprises.

The invention discloses a CHO cell protein-free medium. The CHO cell protein-free medium comprises the following raw materials: alanine, arginine, aspartic acid, asparagine, cystine, cysteine, glutamine, glutamic acid, glycine, histidine, calcium chloride, magnesium sulfate, potassium chloride, monopotassium phosphate, disodium hydrogen phosphate, sodium bicarbonate, sodium hydroxide, ferrous sulfate heptahydrate, magnesium chloride hexahydrate, copper sulfate, sodium pyruvate, manganous chloride, sodium selenite, ammonium molybdate, nicotinamide, para aminobenzoic acid, folic acid, ribose, uracil, lipoic acid, linoleic acid L, cholesterol, dexamethasone, estradiol progesterone, testosterone and the like. The CHO cell protein-free medium does not contain serum ingredient or animal or plantsource protein, contains amino acids, vitamins, inorganic salt, organics and a small amount of hormone and facilitates purification of protein, cells do not go through the process of serum reduction,the cell activity can be maintained for a long time, and the protein expression and production time is prolonged.

According to the present invention, when cycloolefins are produced by partially hydrogenating a monocyclic aromatic hydrocarbon with hydrogen in the presence of a ruthenium catalyst, water, and a metal sulfate, the decrease in catalytic activity and cycloolefin selectivity is suppressed by reducing the concentration of chloride ions dissolved in the water in which the catalyst is present to 300 wt ppm or less and regenerating a part or all of the catalyst for reuse. Zinc sulfate is preferably used as the metal sulfate. Further, the raw materials and catalyst to be supplied to the reaction preferably have a reduced chloride ion content. This method can suppress the decrease in long-term catalytic activity and cycloolefin selectivity. Furthermore, the catalytic activity and cycloolefin selectivity after catalyst regeneration can be maintained at a high level. As a result, cycloolefins can be efficiently produced for a long period of time.

The invention discloses in vitro amplification culture system and method of hematopoietic stem cells. According to the in vitro amplification culture system and method of the hematopoietic stem cells,coating is carried out in advance by adopting a combination of one or more selected from gelatin, collagen, laminin and fibronectin; a serum-free medium is used as a basal medium; and polyvinyl alcohol, dexamethasone, nicotinamide, metanephrines as well as a combination of a cytokine thrombopopoietin (TPO) and a stem cell factor (SCF) are added. Compared with conventional culture systems and methods, the in vitro amplification culture system and method of the hematopoietic stem cells disclosed by the invention are capable of efficiently expanding number of CD34 + cells that the number of theCD34 + cells can be expanded by 200-1000 times after about 4 weeks of culturing in vitro; moreover, the active hematopoietic stem cells can be retained for a long term. The in vitro amplification culture system and method of the hematopoietic stem cells is capable of providing a large number of hematopoietic stem cells for clinical use, so that the problem of insufficient application of clinical hematopoietic stem cells is effectively solved.

The invention relates to a reclaimed cleaning agent capable of reactivating a ternary catalytic converter, prolonging the service life of the ternary catalytic converter, increasing the automobile power and lowering the oil consumption. The reclaimed cleaning agent is prepared from the following components in percentage by weight: 60% of methanol, 25% of ethanol, 7% of toluene and 8% of cyclohexane. The methanol and ethanol have the main function of generating oxygen ions in the combustion process of an engine combustion chamber, the toluene and cyclohexane have the main function of generating free alkyl radicals in the combustion process of the engine combustion chamber, and the combination of the oxygen ions and free alkyl radicals can remove the substances covered on the surface of the ternary catalytic converter more effectively. The preparation method of the cleaning agent comprises the following steps: mixing the raw materials at normal temperature, and sufficiently stirring uniformly.

The present invention relates to microcapsules comprising a core, wherein the core comprises cinmethylin, and a polyurea shell, wherein the shell comprises a polyaddition product of diphenylmethane diisocyanate or an oligomer thereof and at least one amine having at least two primary amino groups; to a composition comprising such microcapsules; to a method for preparing such microcapsules or such a composition; to a composition obtainable by said preparation method; and to the use of such microcapsules or compositions for controlling undesired vegetation.

The application provides a strain of Lactobacillus plantarum LP4, the microorganism preservation number of which is CGMCC No.14533. The present application also provides a method for preparing the lyophilized powder of Lactobacillus plantarum LP4 and the lyophilized powder of Lactobacillus plantarum LP4 prepared by using the method. The Lactobacillus plantarum LP4 is coated, and a variety of protective agents are used in combination. In particular, after the first coating on the surface of the Lactobacillus plantarum LP4, a second coating is performed to make up for the coating that may exist in the first coating. Incomplete defects form at least a complete dense protective layer on the surface of the Lactobacillus plantarum LP4 cells, and form a microcapsule structure with the cells, thereby effectively separating the Lactobacillus plantarum LP4 cells from the outside world. The environment is isolated, and a stable internal environment is formed inside the microcapsule, so that the Lactobacillus plantarum LP4 can also maintain activity under normal temperature conditions.

The invention discloses a method for long-term storage of berberis heteropoda seeds. The method comprises the following steps that the seeds are sterilized, disinfected and aired, and the dried berberis heteropoda seeds are placed under a 2-5 DEG C condition and soaked in a mixed solution comprising 15% of ethanediol, 10% of dimethyl sulfoxide (MSO) and 10% of cane sugar for 45-60 minutes; prefrozen berberis heteropoda seeds are placed into an absorbent gauze bag, and the berberis heteropoda seeds and the gauze bag are placed into a dryer with the lower layer being made of silica gel for drying; and the dried seeds are uniformly smeared with ceresin, packaged with a tinfoil bag airtightly, placed into a low-temperature environment with the temperature being 25-40 DEG C to be stored for 30-60 minutes, and then packed into a sealed bag which is filled with liquid nitrogen and has the temperature of -196 DEG C for cryopreservation. By adoption of the method, the activity of the seeds can be preserved in a long term, the rate of emergence of the seeds is guaranteed and increased, and the seedling establishment capability is improved.

The invention relates to a preparation method for mixed bacteria immobilization particles, in particular to a method which adopts zeolite as a carrier to immobilize the mixed bacteria. The preparation steps are that: prepared seed liquid is vaccinated to the carrier zeolite that is treated, under the condition of being facultative anaerobic, the seed liquid is cultured for 4 to 6 days in constanttemperature to do adsorption, culture and multiplication for 2 to 3 times, and then the zeolite particles immobilized with the mixed bacteria are obtained. The invention adopts the inorganic carrier zeolite to adsorb and immobilize the mixed bacteria with fast adsorption speed to a plurality of bacteria, good multiplication effect and simple operation, the natural environment does not need to be changed and large scale buildings do not need to be built and no secondary pollution is generated. The prepared immobilized particles are put into bottom mud of polluted water of nitrobenzene class toeffectively remove nitrobenzene and aniline from the bottom mud; when the original concentrations of the nitrobenzene and the aniline in the bottom mud are respectively 4.41 mg / kg and 37.84mg / kg, thedegradation rate of the nitrobenzene is up to 100 percent and the degradation rate of the aniline is 52.51 percent. The zeolite resource in the invention is rich with low price.

The invention discloses a manufacturing method of probiotic carbon powder for diced potato seed coating, which aims to carry out potato seed dice coating treatment by using probiotic carbon powder. The method comprises the following steps: preparing a probiotic liquid containing 5% of molasses, 5% of EM (effective microorganism) probiotic liquid, 89.7% of water, 0.1% of amino acid, 0.1% of calcium magnesium compound and 0.1% of urea, putting into an anaerobic fermentation tank, and fermenting; probiotic dilute solution preparation: injecting water into the probiotic liquid to prepare a 10-time probiotic dilute solution; immersion: immersing the diced bamboo charcoal or wood charcoal in the probiotic dilute solution for 24 hours; airing: airing the immersed bamboo charcoal dices or wood charcoal dices in a ventilating transparent place until the water content is 20%; and pulverization: pulverizing the probiotic-immersed bamboo charcoal dices or wood charcoal dices by a pulverizer until the particle size of the finished product is 0.1mm, thereby preparing the probiotic carbon powder. The method is suitable for diced potato seed coating treatment.

The invention provides a catalyst component for olefin polymerization. The catalyst component comprises elemental magnesium, elemental titanium, halogen and an internal electron donor, wherein the internal electron donor is an imine compound as shown in a formula I which is described in the specification. The invention also provides a catalyst component for olefin polymerization. The catalyst comprises A) the catalyst component; B) an organo-aluminum compound; and C) an optional organo-silicon compound. The invention further provides application of the catalyst component and catalyst to the field of polymerization of olefins, especially propylene. As applied to polymerization of propylene, such a catalyst system has high long-period activity and adjustable orientation capability; and a prepared polymer is wide in molecular weight distribution.

The invention discloses a solvent for preparing an active substance facial mask. The solvent is prepared from the following components in parts by weight: 80-100 parts of water for injection, 0.01-0.05 parts of alpha-sodium tocopheryl phosphate salt, 0.01-0.05 parts of isoflavone, 0.01-1 part of sodium chloride, 0.01-10 parts of glycerin, 0.01-5 parts of mannitol, 0.01-5 parts of trehalose and 0.01-1 part of Tween 80. The invention further provides a preparation method and an application of the solvent. Polypeptide and the mask are separately packaged and stored, and polypeptide is preserved at a low temperature, so that activity of polypeptide can be maintained for a long time; a common mask is preserved at the room temperature, and during using, active substance polypeptide is dissolvedby a solvent and added to the common mask to be combined into the polypeptide mask for use; the facial mask can obviously lighten spots, improve immunity, promote generation of collagen, generation ofmicrovessels and tissue regeneration, and make the skin more elastic.

The invention discloses a rural sewage treatment station control method. A central intelligent control unit locates a sewage station address through a GPS module, and obtains local meteorological datathrough a 4G module and a rainfall monitoring sensor; then the liquid levels of an adjusting tank and an MBR membrane tank are read, the flow rate is calculated according to the liquid levels, the meteorological data and historical water volume data in the morning, at noon and at night, and the running time of a water inlet pump and a fan are adjusted, and therefore, the sludge concentration andthe aeration time are intelligently controlled; whether a sludge return pump is started or not is determined according to the concentration of the sludge in the MBR membrane tank; and whether a cleanwater pump is started or not is determined according to the liquid level in the MBR membrane tank. According to the invention, the GPS module is used for positioning an area to which the sewage station belongs, the 4G module is used for capturing latest weather information on a meteorological website, and the rainfall monitoring sensor and the liquid level detection sensor are used for intelligently predicting rainfall information of several hours and even several days later, so that a control strategy is automatically adjusted, and the activity and concentration of sludge are ensured.

The invention discloses long-acting sustained-release nutritional soil for mechanized rice seedling transplanting and a preparation method therefor. The nutritional soil is prepared from the following raw materials in parts by weight: 240-260 parts of soil for fields and gardens, 150-170 parts of folium cortex eucommiae residue, 20-22 parts of calcium-magnesium phosphate, 7-8 parts of potassium chloride, 6-7 parts of pearlite, 34-36 parts of wheat straws, 7-8 parts of quick lime, 3-4 parts of glucose, 15-17 parts of urea, 2-4 parts of VA mycorrhiza, 1-2 parts of Bacillus megaterium and a proper volume of water. According to the nutritional soil disclosed by the invention, the raw materials are all clean and pollution-free materials and meanwhile are thoroughly well-composted, so that the nutritional soil is free of pungent smells such as putrefactive odor and the like; and a variety of organic humus slowly releases nutrients in the presence of microbes and an inorganic particle carrier, so as to maintain the activity of the nutritional soil and the alimentary cycle of young seedlings for a long time and play a role in actively promoting the growth of the young seedlings.

The invention provides a catalyst component for olefin polymerization. The catalyst component comprises elemental magnesium, elemental titanium, halogen and internal electron donors, wherein the internal electron donors are composed of an imine compound as shown in a formula I which is described in the specification and a diether compound as shown in a formula II which is described in the specification. The invention also provides a catalyst component for olefin polymerization. The catalyst comprises A) the catalyst component; B) an organo-aluminum compound; and C) an optional organo-silicon compound. The invention further provides application of the catalyst component and catalyst to the field of polymerization of olefins, especially propylene. As applied to polymerization of propylene, such a catalyst system has high long-period activity and adjustable orientation capability; and a prepared polymer is wide in molecular weight distribution.