30results about How to "Reduce overreaction" patented technology

The invention discloses face cream with an anti-aging function and a preparation method of the face cream. The face cream disclosed by the invention contains hydrolyzed cod fish skin collagen, carboxymethyl chitosan, a tremella extract, oat-beta glucan and a composite plant anti-aging agent. The face cream with the anti-aging function disclosed by the invention is mild in property, natural and free of irritation and has a relatively good function of scavenging free radicals. By comprehensively applying various anti-aging policies, the face cream not only can be used as a skin care article for delaying senescence after aging, but also can be used as a daily skin care product for preventing aging. The face cream is obvious in anti-aging effect.

An ambroxol hydrochloride composition and a preparation method therefor. 0.1%-99.9% by mass of ambroxol hydrochloride and 99.9%-0.1% by mass of scopolamine serving as main ingredients and mannitol are added into water for injection; dissolve, then adjust to pH 5.0; add 0.1% of activated carbon with stirring; filter out the activated carbon, and then filter the liquid; send into a lyophilizer, cool to −40° C., and hold the temperature for 2 hours; warm to −5° C. to 0° C. slowly to lyophilize the liquid, heat to 35° C., and hold the temperature for 3 hours; take out of the lyophilizer to obtain a lyophilized powder injection containing ambroxol hydrochloride and scopolamine; crush the lyophilized powder injection under sterile conditions, and sieve to obtain sterile lyophilized powder containing ambroxol hydrochloride and scopolamine; and prepare various dosage forms by using the lyophilized powder as a raw material.

The invention discloses a heteropolyacid ammonium salt catalyst and a preparation method thereof. The catalyst comprises an active component, an auxiliary agent and a carrier, the active component is a heteropolyacid ammonium salt, the auxiliary agent is phosphorus, and the carrier is alumina and Silica composite carrier. The preparation method of the heteropolyacid ammonium salt catalyst is as follows: firstly preparing a catalyst precursor, then modifying it, and finally loading active components. The catalyst of the invention has high reactivity and selectivity, and is especially suitable for the reaction of dehydration to ethylene with low-concentration ethanol aqueous solution as raw material.

The invention provides a novel acidic gas treating process and apparatus. The acidic gas treating process employs a gas-liquid two-phase countercurrent absorption reaction and uses a NaOH solution as an absorption liquid to treat acidic gas so as to produce NaHS. According to the process, a primary liquid reaction product and a secondary liquid reaction product are cyclically used, the secondary liquid reaction product is used a tertiary reaction absorption liquid, and an MDEA solution is used as a fourth-stage reaction absorption liquid; thus, the purpose of replacement of CO2 with H2S is achieved, the generation amounts of Na2CO3 and NaHCO3 in a liquid phase product are reduced, precipitation of crystals is prevented, and long cycle operation of the apparatus is guaranteed. The acidic gas treating process provided by the invention is simple and can achieve the dual objectives of purification of acidic gas and reclamation of pollutants.

The present invention discloses a portable vaccine injection device. The portable vaccine injection device comprises a work box and a work cavity positioned in the work box, a lower end face of the work box is fixedly provided with a telescopic device, the telescopic device comprises a telescopic rod, and a right end face of a top part of the telescopic rod is fixedly provided with a fixing box positioned at a lower side of the work box. A traditional vaccine injection device is improved, a traditional mechanical injection device is improved into an automatic injection device, a lifting devicecan be correspondingly adjusted according to height of domestic poultry, so that an injection needle head is positioned at a proper height, a fixing device can fix the domestic poultry needing to beinjected with a vaccine, direct contact between an injection worker and the domestic poultry is avoided, potential safety hazard of the domestic poultry attacking the injection worker is reduced, andan anesthesia device can carry out local gas anesthesia on the domestic poultry needing to be injected and reduces pain feeling of injection to reduce over-excited reaction after the domestic poultryis injected.

The invention discloses a heteropolyacid ammonium salt catalyst and a preparation method thereof. The catalyst comprises an active component, an auxiliary agent and a carrier. The active component is heteropolyacid ammonium salt, the auxiliary agent is Fe, and the carrier is a composite carrier of alumina and silicon dioxide. The catalyst of the invention has high low-temperature activity and selectivity, and is especially suitable for the reaction of dehydrating methanol raw materials with high water content to produce dimethyl ether.

The invention relates to a blood parrot triple redness-enhancing feed additive and its application. It is composed of the following components according to the mass percentage: 3s, 3's left-handed trans-lipidated astaxanthin 35%-55%, food-grade iron oxide red 3%‑7%, marine rhodotorula 7%‑27%, vitamin E 20%‑30%, emergency mitigator 6%‑10%. During application, the additive is added to the feed of ornamental fish blood parrots according to the mass ratio of 11.55‰ and mixed evenly.

The invention relates to the technical field of weaning sow feeding, in particular to a method for increasing the estrus rate of weaning sows. The method of the present invention mainly comprises: a. weaning of sows: weaning of sows is weaned according to the age of suckling piglets and enters the positioning bar for weaning, and the age of weaning is 21-28 days; b. weaning management: feeding sows feed on the day of weaning , add sugar every day, and set up a lighting supplementary system in the weaning school building to supplement the light; c. Trial mating: use different boars to trial mating every day, mating sows after estrus, and feeding gestational feed on the day after mating; d. Weaning sows Sows that have not been in estrus for ≥8 days are reared in groups from the positioning pen to the weaning pen. The invention provides a method for increasing the estrus rate of weaned sows, which is designed according to the body changes of the weaned sows, effectively shortens the estrus time of the weaned sows, improves the physique of the weaned sows, and increases the estrus rate and pregnancy success rate within 7 days.

The invention belongs to the field of chemical industry, in particular to a method for producing 5-hydroxymethyl furfural. The method comprises the following steps: 1) pulverizing the raw materials, soaking in dilute sulfuric acid, and then squeezing dry; 2) steam blasting the squeezed-dried material; 3) water-extracting the blasted material and squeezing it dry; 4. ) The water extract is filtered, purified and concentrated to obtain xylose liquid; 5) Enzyme is added to the bamboo slag for enzymolysis, and then filtered; 6) The obtained glucose enzymolysis solution is separated from acetic acid, lignin impurities to obtain glucose solution; 7) the glucose solution is mixed with hydrochloric acid and sec-octanol in the emulsification pump; it enters the impact flow reactor and the static mixer coupling device for reaction, etc. The invention greatly improves the yield and production efficiency of preparing 5-hydroxymethylfurfural from glucose, saves the extraction solvent, reduces the production cost and equipment investment, does not discharge waste liquid in the production process, and is a green environmental protection process method.

A multi-functional body shaping instrument system for generating sine wave vibrations to generate sine waves to act on the skin to achieve massage, fitness, weight loss and other effects. Compared with square wave output, the sine wave effect makes the skin feel softer and has the feeling of massage. Make the skin more comfortable; sine wave AC output, when the electrode is switched, the voltage is transitioned from small to large, reducing muscle overreaction; only the continuous sine wave of the positive half cycle is a low-frequency wave, acting on the superficial skin; m sine wave is an intermediate frequency Waves can penetrate the surface layer and enter the deep layer; envelope waves can stimulate muscle excitement from the outside to the inside, and truly exercise muscles in all directions.

The invention discloses a process for separation and preparation of high-purity m-xylene from C8 aromatic hydrocarbon. An impinging stream reactor particularly suitable for the process is adopted, fluids are mixed through multiple impinging, good micromixing effect is achieved, the mixed liquid is pushed flatly and flows outside an impinging zone, adequate retention time is provided for the material, a cascade reaction is realized, and the target conversion rate is achieved through design of runners and the liquid flow velocity. The method overcomes the shortcoming that an impinging stream reactor cannot achieve high conversion rate through a single reactor at present, simplifies the technological process, reduces production cost and equipment investment, and ensures long-term operation of equipment. The method has no discharge of waste liquids in the production process, and is a green and environmental-friendly technological method.

The invention discloses an improved reaction and separation synchronous reactor. The improved reaction and separation synchronous reactor comprises a bubble gravity reaction tower or stirring reaction tower and a constant-temperature settling tower, and is mainly characterized in that the bubble gravity reaction tower or stirring reaction tower is connected with the constant-temperature settling tower through a flange, a micropore filter plate allowing liquid to pass through is arranged in the constant-temperature settling tower, and a circulating pipeline is arranged at the position, on the lower portion of the micropore filter plate, of the constant-temperature settling tower and connected with the upper portion of a reaction zone of the reaction tower. According to the improved multiphase reactor, overreaction of products in a reaction kettle can be reduced so as to obtain a product with higher purity, blockage of a connecting pipeline between the reaction kettle and the constant-temperature settling tower and the circulating pipeline can be prevented, and a liquid product and a solid product can be effectively separated in time on the premise of completing reaction. The improved multiphase reactor is especially suitable for reactions where the specific gravity of products is larger than that of reactants and the products are insoluble for one another and comprise solids.