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186results about How to "Change the production process" patented technology

Method for extracting solanesol and chlorogenic acid from discard tobacco leaves

The invention provides a method for extracting solanesol and chlorogenic acid from discard tobacco leaves. The method comprises the following steps: (1) subjecting the discard tobacco leaves to reflux extraction with an aqueous ethanol solution with a concentration of 90 to 97% at a temperature of 35 to 40 DEG C and then filtering an extract with a ceramic membrane; (2) subjecting the extract to reduced pressure condensation at a temperature of 38 to 42 DEG C so as to obtain a dried substance; (3) dissolving the dried substance with water, carrying out filtration with the ceramic membrane, subjecting a filtrate to reduced pressure condensation so as to obtain a concentrate and standing a filter residue for subsequent usage; (4) dissolving the filter residue with ethyl acetate, carrying out filtration with the ceramic membrane, carrying out chromatographic separation by using a silica gel column, carrying out elution with absolute ethyl alcohol and subjecting an eluate to condensation and then to crystallization so as to obtain solanesol; and (5) carrying out chromatographic separation on the concentrate obtained in step (3) by using a macro-porous resin, carrying out elution with an aqueous ethanol solution with a concentration of 55 to 65%, condensing an eluate, adjusting a pH value to 3 to 3.5 and carrying out crystallization so as to obtain chlorogenic acid. The method provided by the invention has a simple process, is convenient to operate, effectively improves the utilization rate of the discard tobacco leaves, reduces production cost for chlorogenic acid and solanesol, has high yield and can effectively guarantee large scale production.
Owner:CHINA TOBACCO HUNAN INDAL CORP

Device reducing light degradation of solar cell and method thereof

ActiveCN104505424AReduce light-induced attenuationNo change in electrical propertiesFinal product manufacturePhotovoltaic energy generationElectricityProduction line
The invention discloses a device reducing light degradation of a solar cell and a method thereof. The device is simple in structure and is easy to product in volume. The device comprises a thermostat, a left conducting plate, a right conducting plate, and a plurality of insulating support rods. The insulating support rods are installed in the thermostat. Two ends of the insulating support rod are respectively disposed on the left side surface and the right side surface of the thermostat. The left conducting plate and the right conducting plate are disposed in the thermostat and are installed on the insulating support rods. A constant current DC power supply is connected between the left conducting plate and the right conducting plate. A first voltmeter is connected with the left conducting plate and the right conducting plate. The middle of the internal of the thermostat is also provided with two pieces of sheet metal. A second voltmeter is connected between the two pieces of sheet metal. Beneficial effects of the device are that production technology of a production line is not changed, devices and equipment which are very expensive and occupy large land are not needed, original electrical performance and efficiency of a cell piece are not changed, the device is simple in structure, easy in mass production, obvious in effect, little in power consumption, high in yield, and high in reliability.
Owner:HENGDIAN GRP DMEGC MAGNETICS CO LTD

Method for preparing high-purity carnosic acid by continuous medium pressure column chromatography

The invention discloses a method for preparing high-purity carnosic acid by continuous medium pressure column chromatography. The method prepares the carnosic acid with the purity of over 98 percent by using a carnosic acid raw material with the content of not lower than 15 percent. The method comprises the following steps of: dissolving a coarse carnosic acid product into ethyl acetate, filtering the insoluble substances to obtain a column filling sample, and filling a column by using silica gel, namely dispersing the silica gel by using the ethyl acetate and then wetly filling the silica gel into the column; after filling, feeding liquid into the column through a plunger solvent pump by using the ethyl acetate as eluent, collecting the eluted fractions section by section, concentrating the fractions under reduced pressure till the eluent is dryly reclaimed to obtain a chromatographic product, reusing the reclaimed eluent, re-crystallizing the chromatographic product by using a hydrocarbon solvent, and drying a crystallized product under reduced pressure to obtain a pure carnosic acid product with the purity of over 98 percent, wherein after the ethyl acetate is reclaimed under reduced pressure, the mother solution serving as a column chromatography raw material can be re-purified, the used chromatographic column is regenerated by using a mixed solvent containing ethyl acetate and ethanol, the ethyl acetate is balanced by a balancing agent, and the balanced chromatographic column can be reused for over 30 times. The method has the main characteristics that the purification process has no pollution, all solvents can be recycled and the method is convenient for industrial continuous production.
Owner:NORTHEAST FORESTRY UNIVERSITY +1

Malt caramel-like aroma spice suitable for cigarette products and application of malt caramel-like aroma spice to tobacco products

ActiveCN106165906AChange the production processStrengthen the style characteristics of Chinese cigarettesTobacco preparationTobacco treatmentWaxCyclopentenone
The invention belongs to the technical field of cigarette spices, and particularly relates to a malt caramel-like aroma spice and an application of the malt caramel-like aroma spice to tobacco products. The spice is prepared from caramel malt serving as a raw material, and a preparing method of the spice includes the following steps of a, raw material pretreating; b, ethyl alcohol extracting; c, freezing dewaxing; d, membrane separating. A pyrazine compound, a furan compound, a furanone compound, a pyrone compound, a cyclopentenone compound and the like are rich in the malt caramel-like aroma spice, the joyful caramel-like aroma smell can be given to cigarettes, and the Chinese-style cigarette style characteristic is intensified. According to the spice, the caramel-like aroma ingredients in caramel malt are purposefully extracted, separated and enriched, and ingredients such as vegetable wax, protein and starch which are contained in malt extract and have the side effects on sense organs of tobacco products are effectively removed. The preparing technology is simple and easy to operate, the cost of the raw material is low, the production process is economic and environmentally friendly, and the malt caramel-like aroma spice is suitable for large-scale industrial production application. The application of the spice to cigarettes cannot change the original processing technology of cigarettes.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC

Spraying gradual-change composite-plate mobile-phone back shell

ActiveCN109413234AChange the production processSolve technical issues that cannot be made into gradient texturesSpraying apparatusPretreated surfacesChange colorEngineering
The invention discloses a spraying gradual-change composite-plate mobile-phone back shell. The back shell includes a surface wear resistance ink layer, a PMMA film layer, a PC film layer, an LOGO pattern layer, a UV transfer-printing texture pattern layer, an optical film layer and a base color ink layer which are disposed from a top to a bottom in sequence. A first color ink layer and a second color ink layer laminated from a top to a bottom are also disposed between the LOGO pattern layer and the above UV transfer-printing texture pattern layer. Thickness of the first color ink layer descends from a left to a right in sequence. Thickness of the second color ink layer descends from a right to a left in sequence. Thickness of all parts of the gradual-change color ink layers in a length direction of the mobile-phone back shell is the same. Compared with the prior art, the mobile-phone back shell which can be made through research and development of numerous experiments and tens of yearsof work experience of the inventor shows a natural gradual-change effect, an outer surface of the entire mobile-phone back shell cannot have a color separation line, and is natural and beautiful, andthe technical problem that existing plastic back shells cannot be made with gradual-change texture is solved.
Owner:FUJIAN SHISHI TONGDA ELECTRICAL APPLIANCE

Automatic machining equipment and machining method for pantograph carbon slide plate of high-speed rail

The invention relates to automatic machining equipment and a machining method for a pantograph carbon slide plate of a high-speed rail. The automatic machining equipment is sequentially provided with a milling station, a sawing station and a chamfering station and comprises a machine stand, a band sawing machine, a workpiece milling device, a workpiece chamfering device, a CNC (Computer Numerical Control) system and a pneumatic system; a carbon slide plate workpiece to be machined is arranged on the machine stand and is sequentially subjected to milling, sawing and chamfering machining; a saw frame of the band sawing machine is also provided with a saw band upper guide servo rotating device and a saw band lower guide servo rotating device which are capable of freely, synchronously and correspondingly rotating a band saw blade within a certain range. According to the automatic machining equipment and the machining method disclosed by the invention, the carbon slide plate can be machined in a sawing manner, and the working procedures, namely sawing, milling and chamfering are integrated on one equipment and can be automatically finished after once clamping, so that materials are saved and the working efficiency is improved.
Owner:ZHE JIANG CHENLONG SAWING MACHINE CO LTD

Processing mechanism and processing method of main body component of bicycle

The invention provides a processing mechanism and a processing method of a main body component of a bicycle. The processing mechanism is characterized in that a water needle for injecting water into a cavity is arranged at a main cavity channel of the cavity of a mold, wherein the front part of the water needle is inserted into the cavity, and a material overflowing cavity for containing overflowed materials is communicated with the other end, opposite to the direction of the water needle, of the main cavity channel through an overflowing pipe; a closeable glue feeding member for injecting glue materials is further arranged at the side wall of the main cavity channel. According to the processing mechanism and the processing method, a water-assisted molding process is introduced into an injection molding process, the two processes are organically combined, and high pressure water is utilized for driving the redundant glue materials in a product out of the cavity, so that the component product is very rapid to cool, and pressure maintaining and cooling processes in the normal injection molding process can be omitted; furthermore, the product can be molded at a time, so that the efficiency is greatly improved, meanwhile, the strength is guaranteed, the wall thickness of the component is very uniform, the shape precision is greatly improved as well, the shapes of bicycle components such as bicycle frames having more braches are diversely designed, and the weights of the bicycle components are light.
Owner:TIANJIN SILVER BASSIS TECH CO LTD

Industrial producing method for powder, particle and sheet bromine-chlorine-dimethyl hydantoin disinfectant

The invention discloses an industrial production method of fine powder, granular and tablet bromo-chloro-dimethyl hydantoin disinfectants, which includes the 5,5-dimethylhydantoin and the flake caustic soda put in a reaction vessel and dissolved in water. The brine is frozen for cooling. With the use of bromine and the chlorine added, the reaction solution is obtained. The reaction solution is put into a filtration tank. After the vacuum filtrating, the ionic water leaching and purification and the centrifuge dripping, the wet products enter a dryer for drying. Thus the powder bromo-chloro-dimethyl hydantoin is obtained after the crushing. A granulator is used for the powder granulation so that the granular bromo-chloro-dimethyl hydantoin can be obtained. The particles poured into a blender are mixed with the adhesives and lubricants to blend evenly, which enter a preforming machine for tabletting, thus the tablet bromo-chloro-dimethyl hydantoin can be obtained. In the invention, the prior production method feeding order of powder bromo-chloro-dimethyl hydantoin is changed, and the processes such as leaching purification, roll dry granulation are added. The degree of purity of powder and granular products produced reach 99.1%, while that of the tablet product is 98%. With low production cost and simple equipment operation, the waste gas and trash discharge almost do not occur.
Owner:河北利仕化学科技有限公司

Scrape-removable water-based ink for flexographic printing and preparation method thereof

The invention provides scrape-removable water-based ink for flexographic printing, which comprises raw materials of color paste, base ink and an admixture, wherein the base ink comprises water-based silver ink, shading black, peeling oil and protective water-based oil. The invention further provides a preparation method of the scrape-removable water-based ink for flexographic printing. The preparation method comprises the steps as follows: step 1, the water-based silver ink is prepared for reserve; step 2, the shading block is prepared for reserve; step 3, the peeling oil is prepared for reserve; step 4, the protective water-based oil is prepared for reserve; step 5, the base ink is prepared for reserve; step 6, the color paste is prepared in an agitator for reserve; step 7, the color paste prepared in the step 6 is added to water and dispersed and ground in a dispersion machine for reserve; and step 8, the color paste, the base ink and the admixture are taken by weight percentage andevenly agitated and mixed, and then the product is prepared. The invention provides the one-step water-based ink and the manufacturing method thereof, which have the advantages that the production process flow of special water-based ink is changed, the manufacturing time is shortened, production procedures are reduced and complete grinding is not needed.
Owner:HENAN UNIV OF SCI & TECH

Preparation and application methods of Cu-Ni-based catalyst for reversed water gas reaction

The invention relates to preparation and application of catalysts and aims at providing preparation and application methods of a Cu-Ni-based catalyst for reversed water gas reaction. The preparation method comprises the following steps: dissolving soluble copper salt and soluble nickel salt into a mixed solution of water and ethanol; adding a complexing agent and reacting under heating and stirring conditions to obtain CuNi hydrotalcite; drying and roasting to prepare CuNi mixed oxide with a nanotube structure; after carrying out reduction reaction in a mixed gas atmosphere of flowing H2 and Ar, naturally cooling to room temperature, so as to obtain the Cu-Ni-based catalyst. The complexing preparation method provided by the invention is simple and feasible; influences, caused by uncertainfactors in a preparation process, on the structure and performance of the catalyst are avoided. Active components of the catalyst comprise copper and nickel and any noble metal is not used so that thepreparation cost of the catalyst is relatively low, and industrial large-scale production of the catalyst is easy to realize. The catalyst can be used for a CO synthesis technology and is further connected with a CO hydrogenation catalyst in series to produce alcohols and hydrocarbons with high additional value, so that the catalyst has an application prospect.
Owner:ZHEJIANG UNIV

High-temperature-resistant hydraulic cylinder manufacturing technology

A high-temperature-resistant hydraulic cylinder manufacturing technology comprises the following steps of (1) material selection, (2) product machining and (3) technology design. A material of a hydraulic cylinder is selected according to the pressure of a working medium and the size of a working cylinder. 40 forged steel or 45 forged steel or carbon steel STKM13C can be selected as the material of the hydraulic cylinder and a piston rod can be made of S45C carbon steel. Seamless cold drawing is conducted on the surface of the hydraulic cylinder, high-accuracy inclination intersecting boring is conducted on the inner diameter portion, the tolerance of the inner diameter ranges from H7 to H9, the surface roughness ranges from 0.8 S to 2.0 S, and the tension strength is over 5.2 MPa. Grinding and hard chroming are conducted on the outer diameter portion of the piston rod, the tolerance of the appearance ranges from f7 to f8, the surface hardness is over HV700, the surface roughness ranges from 0.8 S to 1.6 S, and the chroming thickness is 20 micrometers. According to the high-temperature hydraulic cylinder manufacturing technology, the hydraulic cylinder is good in high-temperature-resistant performance, the service life of a sealing device of the hydraulic cylinder can be prolonged, the number of needed spare parts is small, the number of replacement periods can be reduced, and therefore the labor intensity of workers is relieved; the structure is simple and the hydraulic cylinder is safe and reliable.
Owner:LIUZHOU WEILISHI HYDRAULIC DEVICE
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