30results about How to "Reduce high temperature time" patented technology

The invention relates to a method for making dried roxburgh rose fruit. In the fabrication method, aiming at the defects of the existing roxburgh rose sun-drying and drying processing method such as oxidation of vitamin C under ultraviolet rays, great loss of nutrients and human health hazards caused by later-stage sulphur powder fumigation, a three-segment air-drying mode is adopted so that the fruit product is dried from inside to outside, the high temperature time is shortened, the probability of oxidation reaction is reduced, the greatest nutrient quantity of the fruit product is maintained, the problems such as cracked surface, poor appearance and high humidity in the fruit during the high-temperature sun-drying process are avoided, the sulphur fumigation procedure is not required, and the loss of the vitamin C is reduced to 3.2%-4.8% during the preservation period, thus solving the problems such as difficulty in preservation and nutrition loss.

The invention relates to a process for preparing L-ofloxacin and ofloxacin which consists of, charging solution into 2-(2,3,4,5-tetrafluorobenzoyl-3-ethoxy-ethyl acrylate crude product, freezing, dropping L-amino propanol or DL-amino propanol, thermal insulating till the completion of conversion, alkalizing, reacting at the temperature of 50-90 deg. C, charging N-methyl piperazine into mother liquor, stirring for reaction 1-3 hours at 55-95 deg. C, decompressing and reclaiming N-methyl piperazidine, thermal insulating, plunging reaction liquor into water, agitating, cooling down and filtering, charging water and acid into filtrate, stirring, inversing flow till the completion of hydrolysis, adjusting the pH=7.0 with alkali liquor, extracting by adding in solvent extraction reagent, and concentrating the extract layer.

The invention provides an in-situ combustion layered ignition method. The method includes the steps that a casing pipe is landed into an oil well and extends to the well bottom; a thermal insulation pipe is landed into the casing pipe and a first annular space is formed between the thermal insulation pipe and the casing pipe; the first annular space is sealed through a first packer and a second packer, so that an upper-layer gas injection space and a lower-layer gas injection space are formed; an upper-layer gas distribution device located in the upper-layer gas injection space is arranged on the thermal insulation pipe; a Pupin oil pipe is landed into the thermal insulation pipe, a second annular space is formed between the Pupin oil pipe and the thermal insulation pipe, and an enhanced heat transfer device is arranged in the second annular space; an electric ignition device is landed in an inner cavity of the Pupin oil pipe; air is injected in the inner cavity and the second annular space and nitrogen is injected into the first annular space; the electric ignition device is started; heated gas in the thermal insulation pipe is injected into the upper-layer gas injection space through the upper-layer gas distribution device and an upper oil layer is heated and ignited; heated gas in the Pupin oil pipe is injected into the lower-layer gas injection space through the tail end of the Pupin oil pipe and a lower oil layer is heated and ignited.

The invention discloses a low-temperature deodorization and high-temperature deacidification process capable of inhibiting trans-fatty acid of peanut oil. The process specifically comprises the following steps: (1) degumming; (2) de-coloring; (3) carrying out low-temperature deodorization; (4) carrying out high-temperature deacidification. A packing tower is additionally arranged behind a plate tower of a deodorization and deacidification process, and an alkali refining neutralization reaction section is removed; oil is uniformly distributed in a thin film form and a manner of directly adding saturated steam from the bottom is adopted to effectively remove undesirable odor; high-temperature time of an oil product is shortened; two sets of packing deacidification towers are additionally arranged, wherein the temperature of the #1 deacidification tower is controlled to be 260 DEG C and is used for instantly distilling to remove a large part of acid value, and the temperature of the #2 deacidification tower is controlled to be 265 DEG C and is used for removing the acid value in the oil again, so that the acid value of finished-product oil is reasonably controlled; furthermore, the time of staying at a high-temperature section of the oil is short, the content of the trans-fatty acid is only increased by 0.2 percent to 0.3 percent and the acid value can be controlled to be about 0.1; the alkali refining neutralization section is removed so that the loss of neutral oil is reduced and the yield is improved; the consumption is reduced by about 0.03 percent to 0.05 percent by one acid value; meanwhile, a plasticizer and the acid value in the oil product can be effectively removed.

A method for manufacturing a selective emitter structure with low surface concentration and a soft doped zone includes the steps that (1) the surface of a substrate to be prepared is corroded and cleaned, and the surface of the substrate is completely dried after cleaning; (2) the clean substrate prepared in the step (1) is soaked in a solution with high oxidability to carry out wet chemical oxidation on the surface of a silicon wafer, and then the surface of the substrate is completely dried; (3) a microcosmic salt aqueous solution of 0.5-20% is deposited on the surface of the substrate in a spin coating and spraying mode, and then the surface of the substrate is dried; (4) phosphorus ink or silicon ink is deposited on an electrode area on the surface of the substrate coated with a phosphorus source in the step (3) in a screen printing mode, and then the surface of the substrate is dried; (5) the temperature of a diffusion furnace rises, nitrogen is introduced into a diffusion quartz tube, when the temperature reaches 780-890 DEG C, the clean substrate prepared in the step (4) is placed into a constant-temperature area of the diffusion quartz tube, a fire door of the diffusion furnace is sealed, and after the temperature of the diffusion furnace is stable, oxygen is introduced into the diffusion quartz tube; (6) the substrate is taken out and cooled after the diffusion process is over.

The invention provides a method for inhibiting the browning of freshly squeezed fruit and vegetable juice by ultra-high temperature instantaneous treatment. The method includes the steps of: (1) raw material selection and pretreatment; (2) ultra-high temperature instantaneous treatment; and (3) rapid cooling. The method provided by the invention adopts coupling of ultra-high temperature steam enzyme deactivation technology and ultra-low temperature cooling technology, raises the steam temperature, achieves shorter deactivation treatment time and faster cooling speed, and also can more effectively lower the loss of fruit and vegetable nutritional quality and flavor substances while realizing the enzyme activity loss of polyphenol oxidase.

The invention provides a preparation method for microwave synthesis of glyceryl caprylate-caprate. Caprylate-caprate and glycerin are reacted in the presence of a compound catalyst, and a glyceryl caprylate-caprate product is prepared by microwave synthesis. According to the method, the molar ratio of caprylate and caprate in the glyceryl caprylate-caprate is regulated, catalysis of the compound catalyst is combined, and a frequency band of 300 to 3,000MHz is adopted for microwave synthesis, so that the high-quality glyceryl caprylate-caprate of which the molar ratio of the caprylate and the caprate is controllable can be efficiently and rapidly prepared. According to the method, a high esterification rate can be achieved, and meanwhile, the energy consumption and the production cost of a reaction process can be remarkably reduced.

The invention discloses a surface modification treatment method for a car inner cylinder. The method sequentially comprises the steps of cooling water introduction, heating and cooling. Heating and water spraying cooling are conducted continuously. A cylinder end of the car inner cylinder is subjected to water spraying cooling immediately when being heated to the quenching temperature. According to the method, the cylinder end of the car inner cylinder is centered and continuously heated and cooled simultaneously, so that the whole workpiece is evenly heated and evenly cooled, an obtained product is good in quality, and the defect that in an existing high-frequency quenching process, the hardness of the position, with the thickness being 0.1mm, of the surface of the car inner cylinder workpiece is lower than 55 HRC is overcome. In addition, by the adoption of the surface modification treatment method, machining is convenient, the production cycle is short, and energy consumption is low.

The invention discloses Phyllanthus emblica L. fine dried noodles and a preparation method thereof. The Phyllanthus emblica L. fine dried noodles comprises, by weight, 96 to 105 parts of wheat flour,1 to 3 parts of Phyllanthus emblica L. powder, 0.5 to 1.5 parts of table salt and 0.01 to 0.025 parts of edible alkali. The preparation method comprises preparing Phyllanthus emblica L. powder, pre-mixing the Phyllanthus emblica L. powder and wheat flour according to a weight part ratio through stirring, dissolving the mixture with edible water according to a certain ratio, carrying out uniform mixing, adding salt water into the pre-mixed flour, carrying out stirring, carrying out standing, carrying out rolling through a continuous calender to obtain noodles, drying the noodles, cutting the noodles and carrying out quantitative packing.

The invention discloses a terpene resin hydrogenation method, and the method comprises: carrying out resin synthesis, and activating a hydrogenation catalyst in a first fixed bed hydrogenation reactorand a second fixed bed hydrogenation reactor; adding a cyclohexane solvent into the reactor at a speed of 0.1-5 ml/min, adjusting the hydrogen introduction speed to 300-400 ml/min, changing the cyclohexane solvent into the molecular sieve dehydrated reaction solution obtained in the step 1) after a liquid material exists in the product liquid separation tank, and carrying out a reaction to obtainhydrogenated terpene resin, thereby obtaining terpene hydrogenated resin. The method has the advantages that the production cost can be reduced, the reaction temperature is low, the reaction efficiency is improved, and the obtained hydrogenated terpene resin is stable in performance, not prone to discoloring and the like.

The invention discloses a high-temperature sterilization machine, and belongs to the field of food processing. The high-temperature sterilization machine comprises a material container and a steam ejector, a feeding pump communicates with the space between the material container and the steam ejector, a flash evaporator is arranged above the steam ejector, a maintaining pipe communicates with the space between the steam ejector and the flash evaporator, and the flash evaporator is connected with a condenser. The high-temperature sterilization machine has the effect of keeping the quality of a product while sterilizing.

The invention relates to a microbial fertilizer taking rabbit manure as a base material. The microbial fertilizer comprises rabbit manure; the rabbit manure is prepared by a fermentation process, andthe fermentation process specifically comprises the following steps of: (1) compounding: adding 1% of cellulose flora into 80%-90% of rabbit manure and 9-19% of biochemical fulvic acid by weight, andadjusting the moisture to 55%-65%; 2) fermentation: performing stacking into a large stack with a height of 2.5m and a width of 6-7m for fermentation; turning over the stack once every 5 days, performing stacking into a large stack of 6-7 meters again, and turning over the stack once every 5 days. The method has the advantages of fast heating, long high temperature maintaining time, conversion ofprotein in the rabbit manure into amino acids, conversion of cellulose, absorption of humic acid and fulvic acid by crops, and fast fermentation speed of about 10 days for maturation. Aerobic fermentation and anaerobic fermentation are carried out at the same time. Stable fermentation and low nutrient loss are achieved.