72results about How to "Efficient production method" patented technology

The invention relates to a permanent antistatic flame-retardant polyamide-6 bulked continuous filament textured carpet yarn and a preparation method. The permanent antistatic flame-retardant polyamide-6 bulked continuous filament textured carpet yarn comprises a carpet yarn body, wherein the carpet yarn body consists of two tows of flame-retardant polyamide-6 bulked continuous filaments in different colors or the same color and a tow of antistatic polyamide-6 bulked continuous filaments; single fibers in the three tows of polyamide-6 bulked continuous filaments are random three-dimensional crimped fibers; different types of fibers are randomly mixed and intertwined; and periodical net knots are arranged on the surface of the carpet yarn body. The preparation method is implemented by one step through a tri-screw bulked continuous filament (BCF) spinning machine set. The product substantially maintains the characteristics of abrasion resistance, stain resistance, resilience and the like of polyamide-6, and also has a permanent antistatic function and a flame-retardant function. According to the preparation method, the characteristics of a production process of the tri-screw BCF spinning machine set are utilized, so that the aim of spinning the antistatic flame-retardant polyamide-6 textured carpet yarn by one step is fulfilled, and the production process is simple, practical and efficient.

The invention discloses a method for producing organic selenium-enriched rice, wherein the organic selenium-enriched rice is planted according to a normal rice cultivation method. The method is characterized in that the method comprises the steps of: carrying out root dipping treatment to rice seedlings by using selenium-enriched nutrient before transplanting the rice seedlings, transplanting therice seedlings into a big field, planting according to a conventional rice planting method, harvesting organic selenium-enriched paddy, and processing the organic selenium-enriched paddy to obtain the organic selenium-enriched rice. The selenium-enriched nutrient comprises substances with effective application dose, wherein the substances contain selenium and potassium sulfate,. The selenium content of the rice, obtained by the method, is 50-300mug/kg and is improved by 2-10 times in comparison with that of common rice, organic selenium ratio is greater than or equal to 80% and the standard of the organic selenium-enriched rice is achieved.

The invention discloses diaphragm cloth for a water electrolyser and a producing method thereof. The diaphragm cloth is high density woven fabric formed by polyphenylene sulfide fiber with the diameter ranging from 4 mum to 12 mum, the thickness of the diaphragm cloth is 0.2-3.0 mm, and the gram weight is 200-600 g/m<2>. The diaphragm cloth has the advantages of being high in air tightness, good in hydrophilia, good in ion permeability, low in cost, safe, environment-friendly and light in weight. The producing method is quick, efficient, free of pollution, simple in operation and capable of saving energy.

The invention discloses a piece of diaphragm cloth for a water electrolyser and a method for producing the diaphragm cloth. The diaphragm cloth is a woven fabric or a non-woven fabric or a knitted fabric made of polyphenylene sulfide fiber, the average aperture of the diaphragm cloth is smaller than 10 micrometers, and the venting quality of the diaphragm cloth is 2 L/cm<2>/min or lower under the pressure of 3 KPa. The diaphragm cloth has the advantages of being high in gas tightness, hydrophilcity and ion permeability, and has the advantages of being low in cost, safe, environmentally friendly, light in weight, rapid and efficient in production, free of pollution, easy to operate and capable of saving energy at the same time.

The invention belongs to the technical field of semiconductor photocatalysis, and particularly relates to a sodium doped graphite phase carbon nitride prepared by one-step synthesis and application thereof. The preparation method comprises the steps of placing melamine and sodium hydrogen carbonate into a ball milling agitator for ball-milling for 8 hours, taking out the mixture, placing the mixture in a alumina crucible with lid for calcination to acquire a solid, washing the solid with 3% salpeter solution, deionized water and ethanol for three times, then drying and grinding to acquire the sodium doped graphite phase carbon nitride. The preparation method has the advantages of being low in material cost, simple in processing process, and high in preparation efficiency. The prepared sodium doped graphite phase carbon nitride has a decreased forbidden band gap. The photocatalytic degradation speed of organic dye RhB is increased by leaps and bounds.

A semiconductor device is manufactured by forming a mask having a first opening and a second opening wider than the first opening on a principal surface of a first conductivity type semiconductor substrate, etching semiconductor portions of the first conductivity type semiconductor substrate exposed in the first and second openings to thereby form a first trench in the first opening and form a second trench deeper than the first trench in the second opening, and filling the first and second trenches with a second conductivity type semiconductor to concurrently form an alignment marker for device production and a junction structure of alternate arrangement of the first conductivity type semiconductor and the second conductivity type semiconductor. In this manner, it is possible to provide a semiconductor device in which a parallel pn structure and an alignment marker can be formed concurrently to improve the efficiency of a manufacturing process.

The invention relates to a production method of squalene, and in particular relates to a method for cloning a squalene synthetase gene and co-expressing in escherichia coli so as to establish a recombinant strain capable of synthesizing squalene. The production method of squalene, provided by the invention, is simple and efficient, the established escherichia coli engineering bacteria can be used for producing squalene with a high yield and can be widely applied to the fermentation production of squalene, the output of squalene is increased, and then the large-scale application of squalene is facilitated.

A method of producing a lifting force and a horizontal force by aerodynamic surfaces includes the steps of moving aerodynamic surfaces along a circumference and providing their oscillations; rotating each of the aerodynamic surfaces synchronously with the movement along the circumference, in a direction which is opposite to it, relative to an axis of rotation which is parallel to an axis of the movement along the circumference, with an angular speed which is equal to an angular speed of the movement along the circumference, and performing oscillations of each of the aerodynamic surfaces synchronously with a rotation relative to mutually perpendicular axes located correspondingly in two mutually perpendicular planes which intersect along an axis of rotation of the aerodynamic surfaces, wherein one of them passes through an axis of the movement along the circumference and the axis of rotation.

To provide particles for water disinfection which are hard to be suspended and are hard to be diffused in water which is suitable for use of disinfecting water and which are capable of developing disinfection effect fully and method of producing the same.

Particles for water disinfection in which silver is coated on a garnet surface or a particle surface whose main ingredient is garnet are used. When said particles are used, preferable embodiment of silver is that the granular lumps of silver are carried continuously and discontinuously forming a group on a garnet surface as shown in SEM photographs of FIG. 4. Effective production method of such particles can be conducted by the electroless plating method in which garnet particles are immersed in a mixed solution composed of reducing solution in which at least any one of potassium sodium tartarate, glucose, or acetardehyde as a reducing agent is dissolved in water, silver nitrate solution, and ammonium solution.

The invention belongs to the field of development of protein raw materials of aquatic food, and particularly relates to low-flourine frozen Antarctic krill mince and a preparation method thereof. Meat of thawed frozen Antarctic krill products or fresh and live Antarctic krill are separated, collected and chopped, fluorine rich in krill protein is continuously removed, protein is settled and separated simultaneously, an anti-freezing denaturant is added after the products are adjusted to be neutral, and the low-flourine frozen Antarctic krill mince is obtained through quick freezing; the water content of the krill mince is 78%-82%, and the content of fluorine is lower than 100 mg/Kg on the dry basis; the crude protein content is 72-80 g/100 g on the dry basis, the content of crude fat is 22-30/100 g on the dry basis, and the content of phospholipid is 450-480 mg/g on the basis of lipids. By means of the preparation method, industrialization is easy to realize, the prepared product has high nutrition value and good safety, is convenient to store and transport and can be widely used as a main material or an auxiliary material of aquatic protein food for various processing methods.

The invention provides a preparation method of vinyl ester carboxylic acid. The method comprises in the presence of activated carbon load PdCl2 or an activated carbon load PdCl2-alkali halide solid catalyst, enabling carboxylic acid and vinyl acetate to undergo a vinyl exchange reaction in a backflow state, and obtaining reaction liquid containing corresponding vinyl acetate. According to the method, the catalyst is prepared simply and conveniently, the catalytic activity is high, and the catalyst is separated from a product easily. The preparation method is an efficient, green and environment-friendly production method.

A process for preparing film label includes such steps as providing a film, vacuum evaporating of a metal layer on the film surface, printing a chemical corrosion resistant protecting layer whose shape is a needed graphics or pattern, chemical corroding to remove uncovered metal layer, and attaching the obtained metal graphics or pattern onto a paper substrate.

The invention discloses a preparation method of mulberry leaf metallothionein. The preparation method of the mulberry leaf metallothionein is completed through the six steps of mulberry leaf protein extracting, protein fusion vector expression constructing, biomembrane separating, orientated metal ion releasing, enzyme digestion eluting and purifying, refining and freeze-drying. A protein source of the mulberry leaf metallothionein is extracted and separated from pure plants, the plant protein resources are fully utilized, and compared with MT raw materials from other sources, the advantages of being reliable in raw material source, simple in extraction process, low in cost, green, safe and the like are achieved; when concentrated liquid protein is induced with metal ions, a metallic element which is necessary for a human body is selected as a fusion vector expression body, and therefore the target product can be stably expressed in a soluble and high-yield mode; the target protein and quantitative releasing of the metal ions can achieve classified expression to obtain purified MT protein molecules with the different structures; the extraction process cycle is short, the handling capacity is high, and the target product obtained through reacting has the advantages of being high in recycling rate, few in loss, high in purity, free of secondary pollution and the like.

The invention discloses a production method of instant seasoned mulberry leaves. The method comprises the following steps of picking fresh mulberry leaves, and performing blanching and color protection on the picked mulberry leaves; rapidly putting the blanched and color-protected mulberry leaves into flowing ozone water to be cooled, and then putting the cooled mulberry leaves into a dehydrator to be dehydrated until no water flows out when the mulberry leaves are pinched by the hands; fully immersing the cooled and sterilized mulberry leaves into prepared seasoning juice, and performing stirring for 50-60 seconds to obtain seasoned mulberry leaves; putting the seasoned mulberry leaves in an ozone sterilization cabinet for ozone drying and sterilization until the moisture content of the mulberry leaves is 60-70% by micro-drying; putting the mulberry leaves subjected to seasoning and secondary low-temperature sterilization into a sterilized packaging bag, vacuumizing the bag, and sealing the bag; and putting the bag into ultrahigh-pressure sterilization equipment for low-temperature sterilization to obtain the instant seasoned mulberry leaves. According to the preparation method, three times of low-temperature sterilization are adopted, so that the microorganism killing rate can be guaranteed, the nutritional active ingredients of the final instant seasoned mulberry leaves canbe greatly reduced, the taste is crisp and tasty, the texture is hard and crisp, and the nutrition, taste and quality form of the instant seasoned mulberry leaves are greatly improved.

The invention discloses an environment-friendly anticorrosion abrasion-resistant luminescent marking coating production method which includes the steps: 1) adding solvents to completely dissolve chlorinated rubber, acrylic resin and modified piperylene-based hydrocarbon resin; 2) uniformly stirring anti-yellowing a polyurethane prepolymer, a chain extender, an antioxidant, long-lasting polyurethane luminous powder to obtain mixture; 3) adding pigments, fillers and additives into the mixture prepared in the step 2) to uniformly stir materials; 4) adding composite rare earth in the step 3), 5) grinding the materials uniformly dispersed in the step 4), and packaging the grinded materials. The environment-friendly anticorrosion abrasion-resistant luminescent marking coating production method is efficient and suitable for industrial production, a coating is environmentally friendly, high in comprehensive performance, excellent in abrasion resistance and anticorrosion water resistance and long in service life and can continue to emit light for a long time without light, and a driver can be timely, continuously and remarkably reminded and warned.

The invention discloses a culture medium for identifying infectious microbes of erythromycin fermentation liquid, a preparation method of the culture medium, and a method for identifying infectious microbes. The culture medium comprises the following raw materials of sodium chloride, a beef extract, yeast cream, glucose, peptone and magnesium sulphate. The preparation method comprises the following steps of enabling the raw materials to dissolve in distilled water, adjusting pH, dropwise adding a phenol red solution to the culture medium until the culture medium is deep red, subpackaging the deep red culture medium into clean empty test tubes, sealing the test tubes with rubber plugs or test tube caps, and performing sterilization so as to obtain the culture medium for identifying infectious microbes of erythromycin fermentation liquid. The method for identifying infectious microbes comprises the following steps of inoculating erythromycin fermentation liquid samples needing examination with the culture medium, performing culture, examining sample taking smear under a microscope, and through examining the microbe type of microbe strains on the smear, judging whether the erythromycin fermentation liquid contains the infectious microbes or not. The culture medium disclosed by the invention is definite in purpose, and coordinated and rich in nutrients, the preparation method is simple, quick, convenient and efficient, and the method for identifying the infectious microbes is simple, effective and high in accuracy degree.

The present invention provides a slag fiber cotton production method, which comprises that: thermal liquid state floating slag in a melting furnace is subjected to re-upgrading, the re-graded slag enters a quenching and tempering furnace, acidity coefficient is adjusted to 1.26, the thermal liquid state slag enters a centrifuge, and inorganic fiber filaments with a diameter of 7 [mu]m are drawn under centrifugal hot wind blowing pressure; when the thermal liquid state slag is blown into the inorganic fiber filaments, a mist-like dust preventing oil agent is blown and sprayed on the inorganic fiber filaments, a water soluble thermosetting type powder phenol formaldehyde resin binder is uniformly sprayed on the inorganic fiber filaments, and wind separation is performed, such that the fibers settles in a cotton collection chamber; and the cotton collection chamber makes the fibers be uniformly distributed on a conveyor belt through the provided negative pressure so as to be output, the material is conveyed into a curing furnace, and pressurization shaping and other processes are performed to prepare the cotton felt and the structure cotton product. According to the present invention, the thermal liquid state slag is directly upgraded to prepare the inorganic fiber filaments, such that the production method is unique, the production cost is low, the production method is superior, the energy sources are circularly and comprehensively utilized and the effects of energy saving and consumption reducing are achieved during the production, and the ecology and the environment are protected.