79results about How to "No change in quality" patented technology

The invention relates to a method for decolorizing sulfuric acid by using hydrogen peroxide. The method includes the following steps of injecting a hydrogen peroxide solution to the sulfuric acid in a closed sulfuric acid decolorizing tank at a speed of 6-18L/min*t with a volume ratio of the sulfuric acid to the hydrogen peroxide solution being 100: (6-22); and simultaneously continuously stirring a mixture at a speed of 8-15 revolutions per minute to obtain the finished sulfuric acid. By means of the hydrogen peroxide solution, the method is strong in oxidizability, good in selectivity, simple in process, convenient, flexible and capable of decolorizing tawny or black brown sulfuric acid; under acidic conditions, reduzate of the hydrogen peroxide is water, other metal ions can not added to the sulfuric acid finished product, and the quality of the sulfuric acid finished product can not be changed; therefore, the problem that the chromaticity and the transparency of the sulfuric acid finished product prepared by gypsum flue gases can't reach the standard can be eliminated, the quality of gypsum flue gas acid can reach the standard of high-class products of industrial concentrated sulfuric acid, the market competitiveness of the gypsum acid is improved, and economic benefits of enterprises are increased.

The invention provides a paddy rice producing production technology for removing pesticide residue, and relates to the technical field of the processing and the producing of food, wherein the production technology comprises the following steps of: cleaning paddy, separating hull grains from hulled materials, removing the pesticide residue by means of coarseness humidifying, milling rice, removing the pesticide residue in a polishing way, and removing the pesticide residue by ultrasonic wave. The paddy rice producing production technology for removing the pesticide residue provided by the invention combines with the production of paddy rice producing, mainly aims at solving the problem that the paddy contains the pesticide residue, is scientific in technological process design, reasonable in technical method, and low in production cost, effectively and reliably removes the pesticide residue, can subsidiarily kill the toadstool in the paddy, can produce the paddy clearly, guarantees the quality safety of paddy-processed products, is free from secondary pollution of rice products in the process of processing and producing, can not change the original quality, nutrition and special flavor of the paddy, is particularly suitable for preparing the products which are higher in nutrition value and economic value such as germ-remaining rice, the clean rice and the like besides the common rice, and is further good for reducing the pesticide residue of byproducts prepared by comprehensive utilization.

A green nutritive rice with bamboo fragrance is prepared through washing fresh bamboo, slicing, pulverizing, extracting bamboo juice mixing it with rice, and drying. Its advantages are rich nutrients and good color, smell and taste.

The invention discloses a laser pulse switch apparatus and a control method therefor. According to the laser pulse switch apparatus and the control method therefor, a first switch and a second switch are arranged behind a pockels cell and a multipass amplifier set respectively to form a two-switch single-shot system, a single pulse trigger signal is generated by inputting a laser synchronous signal into a delayer, and the first switch is controlled to be on once only, so that single-shot emission of laser pulses is realized; the first switch realizes that one laser pulse is quickly selected for passing, and the second switch takes effect of blocking light; the aperture and speed of the switch are realized by two switches respectively, so that the requirements on the aperture of the first quick switch and the speed of the second large-aperture switch are reduced; any change is not performed on a pump light path, so that the heat effect, the beam quality and the like of pump laser pulses are not changed and it is ensured that the quality of the whole laser device is not changed; and when a shooting range does not need the laser pulses subsequently, it can be ensured that the energy of the high-energy laser pulses in the multipass amplifier set is not accumulated for causing the problems of the heat effect and the like.

The invention relates to a doxofylline-containing liquid injection used for treating bronchiectasis, and provides the doxofylline with higher concentration. The injection comprises doxofylline, a water solvent, and a pH value regulating agent. The injection comprises the following components by weight percentage: 1 to 4 percent of the doxofylline, and 0.01 to 5 percent of the pH value regulating agent. The injection enriches specifications of the prior doxofylline injection, and brings convenience to the clinical application. The invention also provides a preparation method and a quality control method for the doxofylline liquid injection. Relevant materials in the doxofylline injection can be determined by an HPLC method to improve the product controllability.

The invention discloses an anti-coking agent for delaying coking and belongs to the field of petrochemical engineering. The anti-coking agent for delaying coking is prepared from components in percentage by mass as follows: 10%-30% of a thermal cracking accelerative activator, 20%-40% of a free radical chain reaction inhibitor, 1%-15% of an anti-scorching agent, 1%-15% of an antioxidant and the balance of a solvent, wherein the thermal cracking accelerative activator is block polyether, the free radical chain reaction inhibitor is pentaerythritol ether, and the anti-scorching agent is a sulfonamide agent. The anti-coking agent for delaying coking can effectively prevent and inhibit cokes from settling in a furnace tube of a heating furnace and can inhibit a free radical chain reaction, reduce production of dry gas, prevent aromatic hydrocarbon from condensation, reduce coke production, improve the thermal cracking reaction activity and improve the selectivity of a coking reaction; coking and scale depositing caused by high-temperature oxidation of raw materials in the furnace tube can be prevented, the scale inhibiting ratio reaches 92% or above, and the device running cycle is prolonged by one time or more.

The present invention relates to a kind of plastic exsiccation defoaming mother granules for plastic application industry. Said mother granule composition includes (by wt%) 60-80% of calcium oxide, 10-20% of ethylene-vinyl acetate copolymer and 10-20% of amorphous olefin-copolymer dispersing agent. It can be used for exsiccation and defoaming in plastic product production.

A cigarette features that an empty segemtn is arranged between tip filter and tobacco shreds segment for decreasing the consumption of tobacco, tar and nicotin, that is, decreasing the damage of cigarette to human body.

The invention provides application of a grape earliness gene VvWRKY13 in regulation and control of biosynthesis of ethylene in plants. The application comprises the steps of carrying out leaf dish infestation on an EHA105 agrobacterium tumefaciens strain carrying recombinant plasmids so as to obtain an over-expressed tomato material of VvWRKY13, and carrying out repeated selfing so as to obtain at least three independent pure transgenic lines; and detecting the ethylene generation amounts of transgenic tomato lines in different growth and development periods, the expression amount of key enzyme genes for synthesis of ethylene, relevant phenotypic characters of ethylene, lengths of transgenic fruits in different growth cycles and relevant quality indexes of mature fruits. An experiment result proves that by applying VvWRKY13 to the regulation and control of the key enzyme genes of ethylene and the biosynthesis of ethylene, the expansion period of young fruits of transgenic tomatoes is shortened, the early maturing of the fruits is promoted, the quality functions of the mature fruits are not changed, and the theoretical basis and the experimental foundation are provided for the early-maturing breeding of berry fruits such as the tomatoes.

The invention discloses a grain dry segmented steam explosion pretreatment method for fermenting liquor by using pure grain in solid state, which belongs to the field of liquor fermentation. The method comprises the following basic steps of: pre-balancing the moisture content of the grain; putting the grain into a two-way air inlet quick-opening steam explosion reaction tank separately or together; introducing superheated steam and high-temperature air until a certain pressure is achieved; and maintaining for a certain period of time, and quickly opening a ball valve at the bottom of the steam explosion tank after the pressure rises to a peak valve to explode a material into a normal-pressure collecting tank. In the grain treated by the method, the cell tissue is completely damaged, the curing degree of starch is high, and the utilization ratio is high in a fermenting process; meanwhile the grain is sterilized, so that bacteria are removed. By adopting the method, the grain treatment energy consumption in a liquor plant can be lowered, the liquor yield and the superior product rate are increased, and the comprehensive benefit is increased.

The invention discloses a totally degradable plastic film. The raw materials of the plastic film comprise high-density polyethylene or low-density polyethylene, middle-density polyethylene particles and fillers, adding with TDPATM additives which are produced by EPT company, Canada, and recovery connatural waste recycled plastic particles. The raw material and the weight ratio of the plastic film are 40 to 70 percent of the polyethylene particles, 2 to 30 percent of the TDPATM additives, 2 to 30 percent of the additives and 2 to 30 percent of the waste recycled plastic particles. 1 to 8 percent colored polyethylene particles are added in the raw materials to be made into colored film. The raw materials are mixed in proportion according to the production requirements, are added in an inflation film manufacturing machine to be heated up to the prescribed temperature and then the totally degradable plastic film is produced. The totally degradable plastic film has simple prescription, easy fabrication, few process steps, short flow and few used equipment with only the inflation film manufacturing machine. The thickness of the totally degradable plastic film can reach as thin as 0.02, with the middle; wherein, 0.025 thickness film has 33 MPa of longitudinal tension degree and 25 MPa of transverse tension degree of the mechanical properties, 260 percent of longitudinal tensile stretch and 620 percent of transverse tensile stretch and 3 months to 2 years of adjustable degradation time.

A water-based cutting fluid includes a water-soluble polymer dissolved in water and ceramic powder dispersed in the water. The cutting fluid further includes water glass. Further, the water-soluble polymer is one selected from a group consisting of polyvinyl alcohol (PVA), cellulose, methyl cellulose, carboxymethyl cellulose (CMC), starch, or a combination thereof.

The invention discloses a method for controlling a conical twin-screw extruder. The method comprises the following steps of: S1, setting a conventional current signal and a current deviation value; S2, collecting current signals of a main motor of the conical twin-screw extruder; S3, comparing the collected current signals with a set normal current signal so as to obtain a deviation current; and S4, outputting the deviation current as a signal, and controlling the rotating speeds of the main motor, a feeding motor and a traction motor of the conical twin-screw extruder, wherein when the current of the main motor of the extruder is increased suddenly and deviated from the set deviation value, the speed of the main motor is reduced, and the speeds of the feeding motor and the traction motor are decreased in proportion; and conversely, when the current of the main motor of the extruder is decreased suddenly and deviated from the set deviation value, the speed of the main motor is increased, and the speeds of the feeding motor and the traction motor are increased in proportion. According to the method, through detecting the current mutation of the main motor of the conical twin-screw extruder, the current is operated, and after operation, the speeds of the main motor, the feeding motor and the traction motor are changed, and the main motor is kept running at a same torque. Therefore, various interference problems such as non-uniform blanking and the like causing the current changes of the main motor are solved. The invention also discloses a control device using the method.

The invention discloses a rapid extraction method for plant mitochondrion DNA. The method includes the steps of firstly, preparing Buffer A (containing betaine and cysteine), Buffer B (containing BSA), a solution W1, a solution W2, a solution W3, buffer WT and buffer TB; secondly, adding Buffer A for grinding after preprocessing fresh and tender tissue, collecting filtered fluid, keeping the pH value at 7.0 or above, and conducting 12000g centrifugation on the supermatant after conducting 1000g centrifugation on collected fluid; thirdly, taking sediment, and adding Buffer B to sediment for resuspension, and conducting 1000g centrifugation; fourthly, taking supermatant, adding DNase I and EDTA for reaction, and then conducting 12000g centrifugation; fifthly, adding the solution W1 to the sediment for suspending sediment; sixthly, adding the solution W2 and the solution W3 for gentle perversion, taking supermatant after centrifugation, and extracting the mitochondrion DNA through an adsorption column. By means of the method, the high-quality plant mitochondrion DNA can be efficiently and rapidly obtained.

Sulfur-free konjak powder processing equipment comprises a vacuum chamber connected to a vacuum pump, a circular penetration conveying belt is arranged on a transmission supporting and steering device in the vacuum chamber, a plurality of squeezing devices is arranged on the circular penetration conveying belt, the two sides of the plurality of squeezing devices are respectively provided with a material inlet and a material outlet, the lower part of the circular penetration conveying belt is inserted into a washing tank in the bottom of the vacuum chamber, a waste liquid collecting disc is arranged in a vacuum chamber arranged between the circular penetration conveying belt and the washing tank, the upper part of the washing tank is communicated with a purified water pipeline, the lower part of the washing tank and the waste liquid collecting disc are communicated with a water processing system, and one end of the upper part of the circular penetration conveying belt matches with a material collecting tank arranged on one side of the material outlet. The sulfur-free konjak powder processing equipment carries out a dehydration treatment on fresh konjak by simultaneously adopting a mechanical squeezing technology and a vacuum absorbing technology, can overcome the shortages of high residual sulfur oxide content and high cost existing in conventional process equipment, and improves the quality of finished konjak powder product.

The invention discloses an integrated treatment method for reducing bioamine content in yellow wine and belongs to the technical field of yellow wine brewing. The method, on the basis of not changing a yellow wine brewing process, includes three steps of: adding propolis and [epsilon]-polylysine to rice before fermentation in a tank or sweet mash before alcohol fermentation, adding laccase and copper gluconate to fermented mash liquid before finishing fermentation, and performing adsorption through a zirconyl pyrophosphate packed column before fill packaging of the yellow wine, thereby reducing the bioamine content in yellow wine by more than 80% than a conventional process, wherein the traditional indices and flavors of the yellow wine are not influenced. The method has simple operations, is totally green and environment-friendly, is free of addition of much equipment and is suitable for large-scale promotion.