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

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 discloses processing, packaging and storage methods of pecans, and belongs to the technical field of processing and storage of nut foods. The method includes: (1) preparation of raw materials; (2) preparation of seasoning liquid; (3) steaming, frying and seasoning of raw materials; (4) composite film, iron deoxidizer, vacuum packaging; (5) bagging The product is directly marketed or stored in a warehouse at 7-13°C until the end of the storage period. This method greatly improves the steaming and soaking process of the traditional method, is low in cost, simple and easy to implement, and has a significant effect on inhibiting the hydrolytic rancidity and oxidative rancidity of hickory oil, so that the shelf life of its products is changed from 4 to 4 times that of the traditional method. -6 months extended to 10-12 months, all physical and chemical indicators have reached the industry standard. This method is suitable for popularization and application by hickory processing factories and large sellers.

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 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 production method of an original waxberry leisure food. The production method comprises the steps of carrying out ozone water treatment on fresh fruits, soaking the treated fruits into a 5% salt solution, draining, drying at three temperatures until the content of water is 10%-18%, cooling, placing into an aluminizing foil bag and then sealing to obtain the finished product. In the production method, the loss of original nutrition ingredients of waxberry, caused by production methods of salting, sugaring or adding other food additives, is reduced, a large quantity of pesticide residues are removed, and three-temperature drying is combined to remain the nutrition of the waxberry fruit well. The produced dried waxberry fruit remains the original taste of the waxberry and is good in mouthfeel, green, safe and good in commodity.

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 a lycopene production process, wherein tomato skin slag is taken as a raw material, and subjected to squeezing, roller-drying, seed skin separating, fluidized bed drying, grinding and extracting. The lycopene production process is simple in operation and mild in conditions, the process takes the tomato skin slag in ketchup production of a ketchup plant as the raw material, cost is reduced, and pollution to the environment is reduced by using the wastes.

The invention relates to an amorphous boron powder preparation device. The device comprises a sealing body, a reactor (2), a self-propagating reaction initiation assembly, an air inflation valve (7),an air release valve (8), an air guide pipe (9) and a heating body (12); the reactor (2) is used for containing reaction raw materials; the sealing body is used for placing the reactor (2), and the reaction raw materials in the reactor are subjected to heat insulation from the exterior and located in a sealing space in a reaction process; the self-propagating reaction initiation assembly is used for initiating a self-propagating reaction of the reaction raw materials; two air through holes are formed in the sealing body, the air guide pipe (9) penetrates through the air through holes and is connected with the interior and the exterior of the sealing body, and the air inflation valve (7) and the air release valve (8) are arranged on the air guide pipe (9) of the exterior of the sealing body; the heating body (12) is used for heating the sealing body, and accordingly the reaction raw materials in the reactor (2) are pre-heated.

The invention discloses a method for hydrogenating terpene resin. In the invention, the resin is synthesized first, and the hydrogenation catalyst is activated in the first fixed-bed hydrogenation reactor and the second fixed-bed hydrogenation reactor; The hexane solvent enters the reactor at a rate of 0.1-5 ml / min, and at the same time adjusts the hydrogen gas feed rate to 300-400 ml / min. The obtained molecular sieve dehydrated reaction solution is reacted to obtain a hydrogenated hydrogenated terpene resin to obtain a terpene hydrogenated resin. The invention can reduce the production cost, has low reaction temperature, improves the reaction efficiency, has the advantages of stable performance of the obtained hydrogenated terpene resin, is not easy to change color, and the like.

The invention discloses a layered ignition device for in-situ combustion. According to the layered ignition device for the in-situ combustion, an electric ignition device is arranged in a cavity of a Pupping oil pipe, an insulated pipe sleeves the Pupping oil pipe, and a casing sleeves the insulated pipe; the electric ignition device comprises an electric igniter cable and an electric igniter heating section, and the electric igniter cable is connected with a power supply; a first annular space forms between the casing and the insulated pipe; a second annular space forms between the insulated pipe and the Pupping oil pipe; a first packer and a second packer are arranged in the first annular space at intervals, and an upper gas filling space remains between the first packer and the second packer; an upper gas distribution device located in the upper gas filling space is arranged on the insulated pipe; a reinforced heat transfer device comprises a winding section and two contact sections; when the temperature of the Pupping oil pipe is lower than a preset value, the reinforced heat transfer device integrally winds the Pupping oil pipe, and when the temperature of the Pupping oil pipe is larger than or equal to the other preset value, the contact sections are supported to contact with the insulated pipe.

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.