45results about How to "Cause poison" patented technology

The present invention adopts ethyl alcohol as reinfing solvent, and adopts the following steps: mixing stevioside and ethyl alcohol according to a certain proportion, stirring in dissolving process, solid-liquid separation of dissolved mixture, respectively decolouring obtained solid and liquid, drying to obtain refined stevoiside, in which the refined solid content is up to 88%, and its total recorery rate is high, and the refined stevioside is colourless, and has no abrormal taste.

The invention provides a compound bird repellent containing carbosulfan, methyl ortho-aminobenzoate and benzyl acetate. The compound bird repellent is prepared by mixing the three active ingredients including the carbosulfan, the methyl ortho-aminobenzoate and the benzyl acetate in proportion, wherein the mass ratio of the carbosulfan to the methyl ortho-aminobenzoate is (2 to 1)-(1 to 20), and the mass ratio of the methyl ortho-aminobenzoate to the benzyl acetate is (1 to 1)-(1 to 2). After the compound bird repellent is used, the harm such as seedling shortage, damage to fruits and grains at the harvest time and the like caused by mass feeding of birds to the field crops, orchards and the like can be effectively avoided.

The invention discloses a biological insecticidal rooting dual protective agent and a preparation method and an application method thereof, the biological insecticidal rooting dual protective agent comprises the following raw materials by weight: 2-6 parts of lactic acid, 0.5-3.5 parts of thuricide, 1-5 parts of pseudomonas, 0.5-3.5 parts of bacterium subtilis and 0.1-2 parts of pyrethrum, and the biological insecticidal rooting dual protective agent is prepared by first monomer cultivation and then mixing in any ratio after mature cultivation. The biological insecticidal rooting dual protective agent can not only kill underground pests, but also can protect the roots of the vegetables to ensure the smooth growth of the vegetables, may not do poison harm to body of users or vegetables eaters, is specially effective on the underground pests, non-toxic and non-residue, and is an ideal biological agent.

The invention relates to the technical field of bentonite deep processing and heavy metal pollution control, in particular to modified bentonite and application thereof, modified bentonite particles and a heavy metal adsorbent. The modified bentonite is prepared by modifying bentonite by using melamine or a melamine salt compound as a modifier. The removal efficiency of the modified bentonite on Hg<2+> ions can reach 99.63%, and the modified bentonite can be used for adsorbing heavy metals such as Hg<2+>, Pb<2+>, Cu<2+>, Cd<2+>, Ni<2+> and Zn<2+> in water and soil.

The invention discloses a method for quickly analyzing total diketone content of a beer semi-finished product. The method comprises the following steps: 1) preparing certain concentration of peroxide solution; 2) adding certain volume and certain concentration of peroxide solution to a sample before distillation; 3) distilling the sample for about 6 minutes to finish distillation by adopting a direct heating and distilling mode; 4) adding certain volume and certain concentration of hydrochloric acid solution to a 25ml distillate collecting volumetric flask before distillation, wherein the PH when the distillate is metered to the full scale is about 1.2, so that the diketone completely reacts with o-phenylenediamine to generate 2,3-dimethyl quinoxaline; and 5) carrying out colorimetric determination by using a spectrophotometer, and calculating the total diketone content. The quick analysis method disclosed by the invention has the advantages of being quick, simple to operate, convenient, accurate, high in sensitivity and the like, the variable coefficients of the repeatability and the reproducibility are smaller than 5% respectively, the recovery rate achieves over 80%, the analysis time is shortened to 30 minutes from 120 minutes in an electron beam curing (EBC) method, and the detection efficiency is improved by three times in comparison with that of the EBC method.

The invention provides an oxidation type biodegradable biaxially-stretchable bio-based nylon film. The oxidation type biodegradable biaxially-stretchable bio-based nylon film has a three-layer structure composed of a surface layer 1, a core layer and a surface layer 2, wherein the surface layer 1 and the surface layer 2 are composed of the following components in percentages by mass: 96.2% to 99%of bio-based nylon, 0.5% to 2% of an oxygen-containing biodegrading agent, 0.1% to 0.5% of an adhesion inhibitor, 0.1% to 0.5% of a slipping agent, 0.1% to 0.3% of a dispersant and 0.2% to 0.5% of a compatibilizing agent; and the core layer is composed of the following components in percentages by mass: 97.2% to 99.2% of the bio-based nylon, 0.5% to 2% of the oxygen-containing biodegrading agent,0.1% to 0.3% of the dispersant and 0.2% to 0.5% of the compatibilizing agent. Meanwhile, the invention also provides a preparation method for the oxidation type biodegradable biaxially-stretchable bio-based nylon film.

The invention discloses a method for promoting chlorella growth. The invention discloses application of pectinase and (2,4,6-trihydroxylphenyl)-4-(4-hydroxyphenyl) pyrazole in promoting algae growth. The pectinase is a common enzyme in the food field, and the (2,4,6-trihydroxylphenyl)-4-(4-hydroxyphenyl) pyrazole is a substance capable of promoting pectinase activity, which can avoid influence on other organisms in environment. A using method has the characteristics that the (2,4,6-trihydroxylphenyl)-4-(4-hydroxyphenyl) pyrazole is added to a water body when the chlorella grows to a certain stage, so that a promoting effect is taken when the chlorella just begins to grow to keep algae at a relatively high density and to effectively promote algae growth; the pectinase and the (2,4,6-trihydroxylphenyl)-4-(4-hydroxyphenyl) pyrazole have the features of being safe, efficient, degradable and the like; and the pectinase and the (2,4,6-trihydroxylphenyl)-4-(4-hydroxyphenyl) pyrazole can be extensively applied to a natural or landscape water body.

The invention relates to a production method for a fabric with flower pattern, in particular to a method that implements the peach finishing of the fabric with superficial dyeing, and the fabric is woven by yarns with different thickness. The fabric with superficial dyeing can be the fabric that is woven by yarns with superficial dyeing or the fabric that is woven by yarns and then superficially dyed. The method that implements the peach finishing of the fabric with superficial dyeing obtains flower pattern through peach finishing instead of stamping, thus being more environment-protective and harmless to persons who wear the fabric frequently; simultaneously as specialized flower polishing machines and flower polishing procedure are not needed, the method reduces the production cost in enterprises.

The invention provides farmyard manure granules and a preparation method thereof. The farmyard manure granules comprise the following raw materials by weight: 50 to 60 parts of human excrement, 30 to40 parts of pig manure, 10 to 20 parts of a cake fertilizer, 10 to 20 parts of soybean straw, 10 to 15 parts of urea formaldehyde, 10 to 15 parts of calcium superphosphate, 15 to 20 parts of modifiedvermiculite, 15 to 20 parts of humic acid, 2 to 3 parts of pericarpium papaveris powder, 6 to 10 parts of a biological fermentation inoculum, 8 to 10 parts of alum, 2 to 3 parts of radix stemonae, 2 to 3 parts of sodium fluorosilicate and 30 to 50 parts of an auxiliary material. The farmyard manure granules provided by the invention can achieve the purpose of killing bacteria and insects in farmyard manure without undergoing the process of high-temperature fermentation; a decomposition promoter in a fertilizer can promote decomposition of an organic fertilizer and facilitates absorbing the fertilizer for a crop; and through mixing of the farmyard manure and a chemical fertilizer, the synergistic effect of the fertilizer can be effectively enhanced.

The invention discloses a preparation method of environment-friendly green composite building adhesive and belongs to the field of adhesives. Sheep bones are pretreated to be completely puffed, water is added for immersion, the pH value is adjusted, and then bone glue is formed after separation; the bone glue, polyethylene glycol and sodium cyanate are mixed and react, and finally the composite building adhesive is obtained. The biological bone glue is modified, the prepared adhesive is environmentally friendly, free of harm to production and users, high in adhesive force, good in waterproofness and high in corrosion resistance, and the service life of the adhesive is prolonged.

The invention belongs to the technical field of biotechnology and discloses a preparation technology for a bird repellent preparation. The preparation technology comprises the following steps of: 1) preparing an absorbing carrier; 2) mixing and stirring; 3) crushing and grinding; 4) soaking, drying and grinding; and 5) preparing the bird repellent preparation. The preparation technology provided by the invention is simple and feasible. The prepared bird repellent preparation has excellent bird repellent effect, is harmless to the birds and is wide in application prospect.

The invention discloses a wide-temperature vanadium-free denitration catalyst preparation method, which comprises: 1, dissolving a chromium-containing precursor, an iron-containing precursor and a copper-containing precursor in deionized water, and stirring in a water bath at a temperature of 20-30 DEG C for 30-60 min to obtain a mixed solution; step 2, adding a pretreated HY molecular sieve into the mixed solution obtained in the step 1, and heating in a water bath to 70-80 DEG C under a stirring condition to obtain a viscous mixture; and step 3, sequentially carrying out ultrasonic oscillation, room-temperature aging, drying, roasting and cooling treatment on the obtained viscous mixture to obtain the catalyst, the mass ratio of the HY molecular sieve to the Fe precursor is (1.33-2.67): 1. The prepared wide-temperature vanadium-free denitration catalyst is wide in active temperature range, low in activation temperature and high in denitration efficiency, the composite desulfurization catalyst can be arranged in equipment behind a dust remover and a desulfurization tower, the service mechanical life of the catalyst is prolonged, and the denitration efficiency can reach 95% or above within the range of 200-360 DEG C under the sulfur-free working condition.