268results about How to "High effective content" patented technology

The invention discloses a synthesizing method of cationic polyacrylamide 'water-in-water' emulsion, which is characterized by the following: adopting inorganic solution as dielectric with specific viscosity number is 30-90ml/g low-molecular cationic polymer solution as stabilizer; copolymerizing free radical of cationic monomer with double bond and non-ion monomer to form the product with grain size less than 1um; fitting for disposing urban effluent, oil-field effluent and paper-making domain.

The invention relates to a process for rare-earth smelting resource reclamation and cyclic production. The process has the main characteristic of comprehensively and systematically solving the problems of environmental protection and industrial promotion of the whole rare-earth industrial chain by adopting innovative integrated technical means. The process mainly comprises administration and comprehensive utilization of waste gas, waste water and waste slag, revolution of a rare-earth smelting process, and reclamation and repeated utilization of various important resources such as sulfur, fluorine, ammonium, thorium, phosphorus, calcium and the like so as to achieve smokeless and harmless treatment of the waste gas, full utilization of the resources and zero discharge of industrial waste water and fulfill the final goal of cyclic production. The process radically solves the maximum environment-friendly bottleneck problem in a sustainable development process of the Baotou rare-earth industry from resource advantage to industrial advantage, in particular the historical key environment-friendly technical problem, reduces energy consumption of a large amount of resources and pollutiondischarge, greatly reduces the production cost, upgrades the rare-earth industry, and extends the larger industrial chain at the same time.

The invention discloses a preparation method of amphoteric polyacrylamide dispersion liquid. The preparation method comprises the following steps: putting a main functional monomer into a mixed system comprising an amphoteric dispersion stabilizer, a chelating agent, a pH regulator and inorganic salt deionized water solution; initiating a reaction by virtue of an initiating agent; and preparing the amphoteric polyacrylamide dispersion liquid by virtue of a dispersion polymerization method. The dispersion liquid prepared by adopting a novel amphoteric polymer dispersion stabilizer has the characteristics of good stability, high molecular weight, high dissolution rate and the like, and a synthetic process of the dispersion liquid is environment-friendly and pollution-free and is low in energy consumption, and the product is nontoxic and noncorrosive, cannot generate secondary pollution and accords with the development direction of green and environment-friendly chemical assistants. The amphoteric polyacrylamide dispersion liquid has an application prospect in the fields of water treatment, papermaking, printing and dyeing, oil fields, mining, daily chemicals and the like.

The invention belongs to the technical field of a limestone/gypsum wet flue gas desulfurization technology, and particularly relates to an additive for strengthening a wet flue gas desulfurization technology, which comprises the following components in percentage by mass: 35-45% of mixed organic acid, 5-10% of organic acid salt, 6-9% of surfactant, 1-6% of heavy metal salt and 35-45% of dirt dispersion agent; and the mixed organic acid comprises adipic acid, wherein the percentage of mass of the adipic acid in the mixed organic acid is not less than 50%. The additive can be added and used for strengthening the wet flue gas desulfurization technology, improve the desulfurization efficiency of a system, reduce the energy consumption, strengthen oxidization, improve the limestone quality and restrain system scaling, and accordingly, the purposes of energy conservation, consumption reduction and waste recycling are realized.

The invention provides a preparation method of phase change fibers. The preparation method comprises the following steps: putting hollow fibers in a liquid storage tank, adding phase change materials to the liquid storage tank, and pressing by using a pressing plate; putting the liquid storage tank in a vacuum bin, sealing the vacuum bin, and vacuumizing the vacuum bin; heating the vacuum bin so as to ensure that the temperature in the vacuum bin is higher than the melting point of the phase change materials so as to melt the phase change materials; stopping vacuumizing, and opening a valve of the vacuum bin so as to ensure that the phase change materials enter inner parts of the hollow fibers under the effect of external atmospheric pressure and are fixed under the capillarity action of inner holes of the hollow fibers; and taking out the hollow fibers filled with the phase change materials, and removing the phase change materials adhered to the surfaces of the hollow fibers, thus obtaining the phase change fibers with a temperature control effect. The preparation method has the advantages that the phase change materials are directly poured into the inner parts of the hollow fibers and are fixed through the capillarity action of the hollow fibers, compared with a microcapsule method, the preparation method is simple in process and low in cost, the effective content of the phase change materials is high, and the temperature adjusting effect can be substantially improved.

The invention provides a process for preparing methyltrimethoxy silane. The process comprises the following steps that: a. methanol is subjected to vaporization by a vaporizing cylinder and passes through a stripping tower, and enters the bottom part of a reaction tower, methyl trichlorosilane enters the reaction tower from the top and is sprayed downward, and methanol reacts with methyl trichlorosilane by counter current contact; b. a primary product is pumped in the top part of the stripping tower and subjected to steam stripping by methanol gases passing by the stripping tower, after falling onto the bottom part of the stripping tower, the primary product is pumped in a neutralization kettle, and the saturated sodium methylate solution is added in the neutralization kettle for neutralization; c. the coarse product of methyltrimethoxy silane is pumped in a rectification tower for rectification. The process has the characteristics of high working efficiency, stable process and big output, etc. Because the process of the invention is continuously carried out, the process has the advantages of having few operators, ensuring safe production and being capable of easily realizing the control of DCS computers; moreover, the product yield is 90 percent, the effective content of the product is high, and the content of methyltrimethoxy silane is more than 99 percent.

The invention relates to a process for synthesizing high-purity molecular distillation monoacylglycerol. The process comprises the following steps of: (1) mixing glycerol and a catalyst A, vacuumizing, stirring for heating, adding hydrogenated oil added with a catalyst B into a reaction system in batches to perform ester exchange reaction, after the ester exchange reaction is finished, keeping temperature, adding phosphoric acid for neutralizing, cooling and standing a reactant for demixing, wherein an upper layer is a crude glyceride layer, a lower layer is materials which are not reacted completely and impurities generated in the reaction process; (2) dehydrating and degassing the crude glyceride layer by primary distillation; (3) performing secondary distillation on the product, and removing free fatty acid and excessive glycerol; and (4) performing third-level distillation on the product to obtain a distillment and a distillation remnant, wherein the distillment is the high-purity molecular distillation monoacylglycerol, and the distillation remnant is diglyceride and triglyceride. By the process, the content of total monoester in crude ester can be improved obviously, the abrasion of equipment in subsequent molecular distillation process is reduced, the energy consumption of distillation is reduced, and the economic benefit is improved obviously.

The invention discloses a preparation method of cationic dyeable flame-retardant polyester resin. The manufacturing method is characterized by comprising the following steps: performing an esterification reaction on a halogen-free copolymerized phosphorus-based flame retardant, ethylene glycol and a composite catalyst to prepare an esterification solution of the halogen-free copolymerized flame retardant; performing ester exchange reaction on sulfoisophthalic acid dimethyl ester and the ethylene glycol to prepare a sulfonate-based bis(hydroxyethyl) isophthalate solution; performing an esterification reaction on terephthalic acid (or dimethyl terephthalate), the ethylene glycol and auxiliaries, then adding a catalyst, a stabilizer, the auxiliaries, the esterification solution of the phosphorus-based flame retardant (or a prepolymer solution of the phosphorus-based flame retardant) and the sulfonate-based bis(hydroxyethyl) isophthalate solution, performing condensation polymerization reaction, and cooling and dicing after the end of reaction to prepare the cationic dyeable flame-retardant polyester resin. The cationic dyeable flame-retardant polyester resin prepared by the method disclosed by the invention has the characteristics of good spinnability, polyester fiber cationic dye boiling dyeing under normal pressure conditions, complete chromatogram and strong dye adhesion.

The invention discloses a preparation method and application of a powdery polycarboxylic acid water-reducing agent. The preparation method comprises the following steps: preparing from a carboxylic acid monomer a, a benzene ring-containing small monomer b and a benzene ring-containing polyether monomer c in an aqueous medium through free radical copolymerization to obtain polycarboxylic acid water-reducing agent mother liquor; and directly forming the polycarboxylic acid water-reducing agent mother liquor into fog drops through a centrifugal atomizer for a sprayer without adding an isolation agent, controlling the average particle size of powder to be 50-150 [mu]m, drying into powder after the fog drops enter a drying room, leading a material to a discharge port through an induced draft fan, and packaging and discharging by adopting a bagged packaging machine to obtain the powdery polycarboxylic acid water-reducing agent. The preparation method disclosed by the invention has the benefits that not only is the effective content of polymers in the powder improved, but also the production technical process is reduced, and the production cost is reduced; and the prepared powdery polycarboxylic acid water-reducing agent is optimal in fluidity, incapable of caking, high in storage stability, low in long-distance transportation cost, excellent in water-reducing property and suitable for various dry mortar.

The provided preparation method for polymer/graphite composite material comprises: using supersonic crushing technique to break the interlayer bonding of expanded graphite as material and prepare the nano dispersive flake graphite; than, in-situ polymerizing the flake with polymer monomer to obtain the target with super conductivity and heat endurance and mechanical processing property. This invention has high production efficiency with low cost.

The present invention provides preparation process of medicine for treating cerebral apoplexy and its sequela. The reasonable preparation process has classified extraction of Chinese medicine components in different properties, and the medicine has greatly raised effective component content and obviously reduced dosage.

The invention relates to the synthesis of a hydrophobic association polyacrylamide "water-in-water" emulsion. Stable " "Water-in-water" emulsion has a small particle size and can be quickly dissolved in water, which solves the problem that the current hydrophobic association polyacrylamide dry powder is difficult to dissolve.

The invention discloses a preparation method for amphoteric water-in-oil inverse emulsion. The preparation method comprises the following steps: respectively adding a non-ion monomer, an anion monomer, a cation monomer, a water quality stabilizer and a molecular weight modifier into water; adjusting PH (Potential of Hydrogen) to obtain a water phase A and a water phase B with different ratios; adding a non-ion emulsifying agent into a hydrocarbons solvent to prepare an oil phase; dividing the oil phase into two parts; respectively dropwise adding the water phase A and the water phase B into the two parts of the oil phase; carrying out one-step emulsification or multi-step emulsification to obtain emulsion A and emulsion B; displacing the emulsion A and the emulsion B by using insert gas to remove oxygen; adjusting the temperature of the emulsion B to an initiation temperature; adding an initiator and after polymerization is carried out for 30-120 minutes, dropwise adding the emulsion A; continually reacting to convert all the monomers into polymers; and finishing the reaction to obtain an amphoteric water-in-oil inverse emulsion product. Amphoteric polyacrylamide prepared by the preparation method has different molecular structures, also has the advantages of high effective content, high molecular weight, low viscosity and can be dissolved quickly.

The invention discloses a high-efficiency biogas slurry organic suspension liquid fertilizer and a preparation method thereof. The high-efficiency biogas slurry organic suspension liquid fertilizer comprises, by weight, 21.0-42.0 parts of a biogas slurry, 6.0-9.0 parts of organic matters, 4.0-25.0 parts of a nitrogen fertilizer, 9.0-20.0 parts of a potassium fertilizer, 0.5-1.0 part of a boron fertilizer, 0.5-0.8 part of EDTA-Zn, 0.4-0.6 part of EDTA-Mn, 0.1-2.0 parts of a wetting dispersant, 0.1-2.0 parts of a thickener, 0.1-2.0 parts of an antifreeze agent and 0.1-1.0 part of a root promoter. The high-efficiency biogas slurry organic suspension liquid fertilizer is an organic-inorganic suspension liquid fertilizer, and the high-efficiency biogas slurry fertilizer is prepared by fermenting a substrate biogas slurry, so the problem of the pollution of discharge of the biogas slurry to the environment is effectively solved, the biogas slurry is transformed into valuables from wastes andis fully used, and the production cost of the liquid fertilizer is reduced. The fermented biogas slurry is used to prepare the liquid fertilizer, so the liquid fertilizer can be more rapidly dissolved in water than general products, and has the advantages of high total nutrient content, stable physical and chemical properties, and no crystallization, precipitation and stratification phenomena under high temperature, low temperature and normal temperature conditions.

The invention discloses a microcapsule gel breaker. The microcapsule gel breaker is mainly prepared from ammonium persulfate as the core material and ethyecellulose as the wrapper material according to the mass ratio of 2:1 to 1:4 by mass percentage in a gelatine water solution as the protective agent. The preparation method specifically includes the steps of firstly, weighing and preparing raw materials; secondly, preparing a wrapper material solution; thirdly, adding the core material to prepare an S/O suspension system; fourthly, adding the protective agent in the suspension system to prepare an S/O/W composite emulsification system; fifthly, separating a microcapsule, and conducting suction filtration, washing and drying. The microcapsule gel breaker has the advantages of high sphericity, uniform granularity, high effective content, slow-release gel breaking property and the like; gelatine (guanidine gum) fracturing fluid can be effectively broken under ideal conditions during fracture construction; few devices are used in the preparation method, device and investment cost is reduced, and operation is easy; the required raw materials are wide in source and easy to obtain, and a foundation is laid for application and popularization of the microcapsule gel breaker in water base fracture work.

The invention belongs to the field of microbial fermentation and provides a preparation method of a ferment fertilizer product with the sweetening effect. The preparation method comprises the following steps of by taking wastes, including inferior fruits, fallen fruits, fruit residues, vegetable straw and the like in agricultural production as raw materials, utilizing a mode of multiple fermentation to finally obtain the liquid ferment fertilizer with the sweetening effect. The obtained bacterial fertilizer has very good ecological benefits, and plants can absorb and convert the bacterial fertilizer to reach the effects of rapidly supplementing plant nutrients, accumulating sugar, and thus increasing the sweetness of fruits and promoting conversion absorption of components, including vitamins, bioactive enzyme and selenium in a product, thereby reaching the purposes of reducing acid, sweetening, removing acerbity and enhancing fresh from the source.

The invention discloses a preparation method of propyl trimethoxy silane. The method comprises the steps that propyl trichlorosilane and methanol are respectively measured through a flowmeter according to the mass ratio being 1.5 : 1; the methanol passes through a heating tank after being vaporized through a vaporizing tank, and then enters the bottom of an esterification column; the propyl trichlorosilane enters the esterification column from the top and is sprayed down; principal products at the bottom of an esterifying kettle is pumped into the top of the esterification column through a centrifugal pump; methanol gas flowing through the esterification column performs gas stripping to residual HCl in the principal products so as to take away HCl while the principal products drop down; after the principal products drop down to the bottom of the esterifying kettle, the principal products are pumped into a neutralizing kettle through a delivery pump; saturated sodium methoxide solution is dropwise added into the neutralizing kettle to be conducted to neutralizing; and propyl trimethoxy silane crude products are obtained after filtering; the propyl trimethoxy silane crude products are pumped into a rectifying tower to be rectified; and after impurities are separated, propyl trimethoxy silane finished products are obtained. The method solves the problems of the comprehensive utilization of side products in the industrial product of gamma-chloropropyl trichlorosilane, has the characteristics of high production efficiency, stable process and high quantity of production, and improves the product yield and purity, thereby realizing the continuity of the process.

The invention relates to a synthesis method of 4- hydroxybutyl vinyl ether polyoxyethylene ether, and belongs to the technical field of polyether compound synthesis in organic chemistry. The synthesis method comprises two phases, namely a primary synthesis phase and a final synthesis phase, and specifically comprises the following steps: subjecting a part of 4-hydroxybutyl vinyl ether to a pre-reaction with a primary synthesis catalyst, adding the pre-reaction product into the rest part of 4-hydroxybutyl vinyl ether, introducing ethylene oxide to carry out primary synthesis so as to obtain a primary product, adding a final synthesis catalyst into a part of the primary product to carry out a secondary pre-reaction, and subjecting the secondary pre-reaction product to final synthesis reactions with the rest part of the primary product and ethylene oxide so as to obtain the final product. The product obtained by the technical scheme provided by the invention has the advantages of low by-product content, narrow molecular weight distribution, and high double-bond protection rate.

The invention relates to a powdery seed coating agent for the prevention and cure of underground pests of sprout period corns and soybeans containing chlorpyrifos, wherein the agent comprises 1-50 wt% of chlorpyrifos, 1-50 wt% of bactericidal agent, 1-20% of surface active agent, 1-20% of binding agent and film former, 0.1-2% of aposematic coloration and right amount of extender.