70results about How to "Settling speed is slow" patented technology

A microgranular bait for the fry of Epinephelus is prepared from crude protein, crude fat, phosphatide, ash, n-3HUFA, DHA/EPA, DHA, and EPA according to a certain proportion through enzymolyzing by proteinase, further adding antioxidizing agent, filtering, and spray drying. Its advantages are rich nutrients, and low settling speed.

The invention discloses a micro particle feed for cultivating juvenile sea cucumber and a preparation method thereof, wherein the micro particle feed for cultivating juvenile sea cucumber can completely meet the needs for various nutrients of the juvenile sea cucumber for growth and solves a biological bait shortage problem during artificial sea cucumber breeding. The micro particle feed comprises the following components in percentage by weight: 15 to 20 percent of fish meal, 5 to 10 percent of bean pulp, 20 to 50 percent of sargassum thunbergii powder, 10 to 15 percent of sea mud, 5 to 20 percent of marine algae powder, 5 to 10 percent of yeast and 0.5 to 1 percent of vitamin premix. The preparation method comprises: mixing the fish meal, the beam pulp, the sargassum thunbergii powder, the sea mud, the marine algae powder, the yeast and the vitamin premix; coating a film with carboxymethylcellulose and wheat gluten, wherein the mass ratio of the carboxymethylcellulose to the wheat gluten is 1:1-3; and drying the mixture under vacuum and crushing the mixture into particles with a particle size ranging from 100 to 500mum.

The invention relates to a microparticle feed for sturgeon fry and a processing method of same. The microparticle feed for the sturgeon fry comprises the following components by weight percet: 50-60 percent of fish meal, 10-15 percent of hydrolyzed fish protein, 10-15 percent of yeast powder, 5-10 percent of wheat flour, 3-5 percent of amylose, 5-6 percent of fish oil, 0.1-0.2 percent of choline chloride, 0.1-0.7 percent of lysine, 0.1-0.6 percent of methionine, 1-2 percent of betaine, 0.1-0 .3 percent of protease, 0.2-0.4 percent of lipases and 1-3 percent of compound vitamin and 1-3 percentof compound mineral substance. The processing method of the microparticle feed comprises the following steps: 1), weighing the components; 2), mixing the weighed raw materials primarily; 3), performing ultrafine grinding; 4), mixing the weighed raw materials primarily secondarily and stirring; 5), heating and curing by using a processing device; 6), extruding and granulating; 7), drying; 8), cooling by using a cooler; 9), crushing by using a roller-type crusher; 10), spraying; 11), screening; and 12), packaging. The microparticle feed for the sturgeon fry has the advantages of comprehensive nutrition, good phagostimulant performance, low settling speed, stability of the microparticle feed for the sturgeon fry in water as long as 24 hours without collapsibility, and the like.

The invention relates to a preparation method of olefin polymerization catalyst slurry. The preparation method of the olefin polymerization catalyst slurry is characterized in that in olefin polymerization catalyst component preparation, after low-boiling point alkane washing, catalyst suspension is formed and then is directly mixed with mineral oil; and the mixture is subjected to vacuum drying with stirring. The olefin polymerization catalyst slurry obtained by the preparation method has a slow sedimentation rate and good stability, and is suitable for continuous production adopting a vaporphase method-based polypropylene production device.

The invention discloses dispersion tablets of a traditional Chinese medicine composition, Chinese thorowax root, virgate wormwood herb, indigowoad root and mung bean (pulverized) are decocted with water twice with 2 hours for every time, thereby obtaining clear paste A; and Chinese magnoliavine fruit is pulverized into coarse powder, and extraction with 90% ethanol is performed on the coarse powder and porcine gall powder to obtain extract B. The clear paste A and the extract B are uniformly mixed, dried at the temperature of 70 DEG C and pulverized into fine powder, thus obtaining the fine powder of the extract of the traditional Chinese medicine composition; the fine powder is further uniformly mixed with sodium carboxymethyl starch, crosslinked polyethylene pyrrolidone, crosslinked sodium carboxymethyl cellulose, microcrystalline cellulose, low substituted hydroxypropy cellulose, lactose and other auxiliary materials; and granulation is performed through the dry pressing process, 16-mesh size granulation is performed, magnesium stearate is added, and uniform mixing and tabletting are performed, thus obtaining the dispersion tablets.

The invention relates to a modified zeolite powder and a raw water treatment method thereof, wherein the modified zeolite powder is formed by mixing the natural zeolite powder and modifying agent which comprises one or more substances of powdered activated carbon, diatomite, coal ash and clay; the modified zeolite powder is put into raw water to be treated. The modified zeolite powder and a raw water treatment method has the advantages that the modified zeolite powder is suitable for raw water treatment with different water qualities, can effectively remove pollutants such as ammonia-nitrogen and organic compounds and has certain capability of removing phenolic pollutants and a plurality of pollutants; with higher chemical activity and biological stability, the modified zeolite powder is fast in absorption speed, high in efficiency and has no secondary pollution; through wet type feeding, the modified zeolite powder is low in settling velocity, long in reaction time with the raw water, better in dewatering performance of sludge in sedimentation tanks after the treatment and the post treatment is convenient; the zeolite powder is low in cost, simple in manufacturing method, convenient in use and can reduce the construction difficulty and cost, which is suitable for sudden accidents of water contamination.

The invention discloses monodispersed nano magnetic beads for rapid sample pretreatment and a preparation method thereof. The nano magnetic material has chemical structure of Fe3O4@SiO2-AEAPS, is a core-shell multifunctional magnetic nano material with abilities of targeting transport, monodispersity and specific combination, and can quickly and efficiently enrich pathogenic microorganisms in field diagnosis of infectious diseases. Furthermore, the monodispersed nano magnetic bead can be used for nucleic acid extraction of the obtained pathogen. The material provided by the invention is a high-tech product combining nanotechnology, molecular biological technology and biological medicine.

The invention relates to the technical field of veterinary medicine preparation, in particular to wettable experimental pullorum evapotranspiration and a preparation method thereof. A suspending agent is added to the wettable experimental pullorum evapotranspiration based on original effective composition of herbs, and through reasonable medicine matching, the wettable experimental pullorum evapotranspiration is easy to scatter evenly in water, and beneficial to dosing during water drinking. Compared with commercially available experimental pullorum evapotranspiration, the wettable experimental pullorum evapotranspiration is good in therapeutic effect and convenient to use. The preparation method of the wettable experimental pullorum evapotranspiration is simple in technology, low in production cost, and suitable for industrial mass production.

The invention relates to the technical field of veterinary medicine preparation, and particularly relates to wettable sulfamethoxazole trimethoprim powder and a preparation method thereof. The wettable sulfamethoxazole trimethoprim powder provided by the invention is added with potassium citrate, a suspending agent and a wetting agent on the basis of effective components of the original medicine; by reasonable medicine proportioning, the invention provides the wettable sulfamethoxazole trimethoprim powder which is easy to disperse evenly in water and convenient to take with water. Compared with commercially available sulfamethoxazole trimethoprim premix, the wettable sulfamethoxazole trimethoprim powder is good in therapeutic effect, convenient to use and small in toxic and side effects. The invention also provides the preparation method of the wettable sulfamethoxazole trimethoprim powder, and the preparation method is simple in technology, low in production cost and suitable to industrialized production.

The invention discloses a polymer suspension turbidity standard substance and a preparing method thereof. Nano particles with high-density negative or positive charges on the surfaces are dispersed into deionized water and a bacteriostatic agent is added to prepare polymer suspension, and the concentration is adjusted to obtain polymer turbidity standard liquid of which the turbidity value is 400NTU. The polymer turbidity standard liquid of which the turbidity value is 400 NTU and zero-turbidity water are diluted proportionally to obtain the polymer suspension turbidity standard substance ofwhich the nominal value is 0.5-100 NTU. The polymer suspension turbidity standard substance has the advantages of having the low turbidity value smaller than or equal to 100 NTU, being high in stability, free of cold storage, convenient to transport and use, and capable of being stored at the normal temperature, and having a stable period as long as 2 years.

The invention relates to a bait for a juvenile sea cucumber in the growing period and a preparation method of the bait. The bait is prepared from the following components in weight percentage: 60% of sargassumthunbergii powder, 10% of common mussel meat powder, 4% of soybean meal, 6% of defatted fish meal, 2% of spirulina powder, 1.5% of baker's yeast powder, 0.5% of compounded mineral substance, 0.5% of multivitamin powder, 1.5% of immune polysaccharides and 14% of dry sea mud powder. In the bait for the juvenile sea cucumber in the growing period, the components are in mutualcompatibility, the contained nutritional ingredients can meet the rapid growing need of the juvenile sea cucumber, the juvenile sea cucumber then grows fast in the opening stage and grows to 2 mm from 0.5 mm averagely after being fed with the bait for 20 days, and the rate of survival is up to more than 80%.

The invention provides a fenbendazole suspension. The suspension per 100ml mainly comprises 8-12g of fenbendazole, 10-25ml of glycerinum, 0.1-0.7g of methylcellulose, 0.1-1.5g of xanthan gum, 0-3g of dextran-40, 0.1-1.5g of tween-80, 0.6-1.5g of span-80, 0.1-0.3g of sodium benzoate, 1-3g of citric acid and the balance of water. A preparation method comprises the following steps: mixing and wetting fenbendazole with glycerinum, tween-80 and span-80 to form mixed liquid; and after partially dissolving sodium benzoate, citric acid and dextran-40 with part of water, adding methylcellulose and xanthan gum and uniformly mixing, mixing the mixture with the mixed liquid, and then adding residual water and uniformly mixing to obtain the suspension.

Production of fluoride cation flocculating agent is carried out by dripping 30% dimethylamine solution into epoxy chloropropane at 25-35 degree while agitating, adding into cross-linking agent, agitating, raising temperature to 70 degree by 1 degree/min, keeping temperature while reacting for 4 hrs, adding into perfluoro alkyl sulfonic acid halide, and re-reacting for 2 hrs to obtain final product. It's tight, has low deposition speed, no solid-liquid separation and less filter cake water content.

The invention discloses an acidophilic microorganism degradation plastic master batch and a preparation method thereof. The acidophilic microorganism degradation plastic master batch is formed by meltpolymerization of a methyl-glycolide-lactic acid acidic monomer and an organic silicon colloid under the catalytic action of SnCl2. The acidophilic microorganism degradation plastic master batch provided by the invention has high purity and good applicability, is easily decomposed by acidophilic microorganisms, can provide survival energy for the acidophilic microorganisms, and has harmless decomposition products.

The invention relates to a surface modification method of aluminate yellow fluorescent powder for an LED. The method comprises the following technical steps: nano SiO2 surface pretreatment; surface modification by polyethylene glycol; low-temperature sintering treatment and the like. The method specifically comprises the following steps: adding the aluminate yellow fluorescent powder into a hydrating solution of ethyl orthosilicate; after reaction, carrying out surface modification by polyethylene glycol; by using N-hexadecyl trimethyl ammonium chloride as an emulsifier, drying; and in a nitrogen atmosphere, firing at low temperature to obtain the surface modified fluorescent powder. The aluminate yellow fluorescent powder provided by the invention has the characteristics of good compatibility with carrier glue, slow settling velocity in the carrier glue, high product percent of pass and the like and can be used for surface modification of synthesizing the aluminate yellow fluorescent powder.

The invention discloses a probiotic dry suspension for feed, prepared from, by weight, feed probiotics 0.5-10 billion/g, 1-5% of a suspending agent, 0.5-2% of a surfactant, and the balance of a soluble carrier; the suspending agent is carbomer, the surfactant is poloxamer, and the soluble carrier is from one or more of anhydrous glucose, water-soluble starch, and complex starch powder or Fu Mei powder. The probiotic dry suspension for feed settles slow, has good physical stability, meets the quality requirements of suspensions, is simple to prepare, has stable quality, is convenient to use and has a promising application prospect.

The invention provides an emamectin benzoate microcapsule suspending agent and a preparation method thereof. The microcapsule suspending agent is prepared from the following components in parts by mass: 1 to 5.7 parts of emamectin benzoate; 0.5 to 2 parts of a capsule material; 0.1 to 0.5 part of a curing agent; 10 to 25 parts of a solvent; 4-8 parts of a dispersant; 0.2 to 1.5 parts of a thickening agent; 1-3 parts of an antifreezing agent; 0.05 to 0.2 part of a defoaming agent; 1-2 parts of an emulsifier; and 50 to 82 parts of deionized water. The microcapsule suspending agent is high in encapsulation efficiency and large in drug loading capacity.

The invention provides a nano particle for a polymer turbidity standard substance and a preparation method thereof. The nano particle is a monodisperse crosslinked polystyrene latex particle having aparticle diameter of 100-500 nm, the monodispersity is good (PDI<0.1), the sphericity is high, and the surface is modified with high-density like charges. The preparation method of the nano particle includes the step of conducting surface modification treatment on latex particles prepared by polymerization reaction. By adopting the nano particle to prepare low-turbidity (<=100 NTU) polymer turbidity standard solution, the stability is good, the storage period is long, there is no need for refrigeration, and the transportation and use are convenient.