69results about How to "Reduce free" patented technology

The invention provides an inside and outside walls facing mortar with little saltpetering phenomenon in use and less price; the facing mortar comprises the following components by weight percent: 30-40% of silicate cement, 15-25% of inert filler, 40-50% of sand, 1.0-2.0% of high active mineral filler and 3.0-5.0% of additives. The preparation method of the facing mortar of the invention adopts common silicate cement as cementitious material, and adds high active metakaolin with small particle size to react with excessful calcium hydroxide in the cement and obtain CSH gel so that the existing free Ca<2+> in the cement is greatly reduced, the compactibility of the facing mortar layer is increased and the external water is hard to enter; in addition, a defined amount of nanoscale water repellent agent is added in the mortar so that the channel of external water into the mortar is blocked, double barriers are formed between each other and the generation conditions of saltpetering can be well restrained. The facing mortar of the invention has reasonable formula, simple construction, and lower production cost which is greatly less than that of the existing anti-saltpetering mortar, thus being applicable to the inside and outside walls decoration of common houses or factories.

The invention discloses a gastrointestinal transit disorder diagnosis composition. The composition which can disintegrate at fixed time and fixed position in the gastrointestinal tract consists of an inner body, an outer layer covering the inner body and a gastrointestinal transit disorder diagnosis probe material which is mixed in the inner body or/and the outer layer. According to the evaluation of information on the probe marker material-containing preparation, such as position in the gastrointestinal tract, retention and image characteristics after disintegration, after a receiver takes the composition orally, the composition can be used for the diagnosis, positioning and degree and property judgment of clinic gastrointestinal transit disorder, such as gastrointestinal obstruction caused by benign and malignant occupation, and the identification and diagnosis of gastrointestinal transit disorder, such as redundant colon and irritable bowel syndrome.

The invention discloses an asphalt modifier and an industrial production method and application thereof. The asphalt modifier is prepared by uniformly mixing modified sulfur and red mud particles. The industrial production method comprises the following steps: 1, preparing the modified sulfur, namely performing sulfur fusion and sulfur modification; and 2, adding the red mud particles. In the industrial production method, the modified sulfur is prepared in a way that an olefin modifier and a sulfur modification additive are added into sulfur for modifying sulfur; a weight ratio of the olefin modifier to sulfur is 2-6:100, and a weight ratio of the red mud particles to the sulfur is 10-30:100. The application process of the asphalt modifier comprises the following steps: I, preheating raw materials; and II, mixing, namely mixing the preheated asphalt modifier, mineral aggregate and matrix asphalt. The asphalt modifier adopted in the production method is simple in production process, low in construction cost, incombustible, safe to use and excellent in performance, the amount of discharged atmospheric pollutants in the production and application process is small, comprehensive performance of the modified asphalt concrete is excellent, and industrial waste red mud can be effectively utilized.

The invention belongs to the technical field of treatment of nitrobenzene wastewater, and particularly relates to a method and device for treating nitrobenzene wastewater through an ultrasonic wave/iron-carbon micro-electrolysis-Fenton oxidation method. The problems in the prior art that efficiency is low when organic pollutant in wastewater is treated only through ultrasonic waves, when a traditional iron-carbon micro-electrolysis-Fenton method is directly used for treating wastewater, along with delay of treating time, due to passivation of iron-carbon micro-electrolysis filler, the treating efficiency is greatly lowered, and anodic reaction is weakened are solved. The method comprises the steps that nitrobenzene wastewater is treated through ultrasonic waves and iron-carbon micro-electrolysis, and nitrobenzene difficult to degrade is reduced to be aniline easy to degrade; after micro-electrolysis is finished, wastewater is placed into a stirring reaction pool, H2O2 is added into wastewater to be combined with Fe2+ in wastewater to form a Fenton reagent, and wastewater is further oxidized and degraded. The reaction speed of iron-carbon micro-electrolysis is improved by 6-10 times on the whole, the concentration of free Fe2+ in wastewater is improved by 5-8 times, and H2O2 needed by the follow-up Fenton oxidization method is greatly reduced.

The invention discloses a color-light consistent pure cotton bleached bright adhesive interlining and a production method thereof; the adhesive interlining is uniform and consistent in color and light, and the surface of a coating layer is bright; the content of free and hydrolyzed formaldehyde is not more than 35 mg/kg; the adhesive interlining stripping strength is not less than 20 N; the dimensional change rate in the warp and weft direction after water washing is -0.8% to +0.5%. The adhesive interlining is uniform and consistent in color and light and bright in surface, the quality grade of the adhesive interlining is enhanced, point leakage, coating leakage and other defect points can be easily detected during visual inspection, so as to ensure that defective products are not produced due to point leakage and coating leakage during clothing pressing, the content of free and hydrolyzed formaldehyde is low, the adhesive interlining stripping strength is high, the shrinkage rate in the warp and weft direction is small, and the production method is easy to operate.

The invention relates to a positive electrode plate and a preparing method thereof and a lithium ion battery. The positive electrode plate aims at solving the problems that for a positive electrode plate in the prior art, under the situation of high charging voltage, the battery circulation performance and the high-temperature storage performance are poor. The positive electrode plate comprises a positive electrode current collector and a positive electrode material layer attached to the surface of the positive electrode current collector. A poly-dopamine layer is further attached to the surface of the positive electrode material layer. Meanwhile, the invention discloses the preparing method of the positive electrode plate and the lithium ion battery with the positive electrode plate. The battery circulation performance and the high-temperature storage performance of the lithium ion battery prepared from the positive electrode plate are excellent under the situation of high changing voltage.

The invention relates to the field of alkyd resin, in particular to a preparation method of odor-less fast-dry alkyd resin. The odor-less fast-dry alkyd resin comprises, by weight, 9-15 parts of fattyacid, 5-12 parts of castor oil, 20-28 parts of polyhydric alcohols, 24-33 parts of organic acid, 2-5 parts of reflux solvents, 0.05-0.2 part of antioxidant additives and 23-27 parts of diluting solvents. The preparation methods includes: by a step-by-step feeding method, subjecting fatty acid, a part of organic acid and a part of polyhydric alcohols to esterification reaction, and adding in castor oil, the rest organic acid and the rest polyhydric alcohols to perform esterification reaction, so as to obtain the odor-less fast-dry alkyd resin. The alkyd resin has the advantages of fast drying,high solvent release property, less odor, high hardness, scratch resistance and the like, further has excellent flexibility without adding of other flexible resin and accordingly can improve production efficiency and have high competitiveness in application of modern furniture factories.

The invention relates to a safety treatment method for fluorine-containing solid waste. According to the method, a calcium compound is added into the fluorine-containing solid waste, and a composition fluorine ions in the fluorine-containing solid waste and calcium ions in the calcium compound form a water-insoluble compound calcium fluoride, so that free fluorine ions in the fluorine-containing solid waste are greatly reduced, and the phenomenon that the fluorine ion content of the fluorine-containing solid waste is large and the fluorine-containing solid waste is easily dissolved in soil and groundwater to cause pollution in the prior art is avoided; a curing agent is added to achieve the effect of bonding the fluorine-containing solid waste, and meanwhile, a layer of low-permeability substance is formed on the surface of the fluorine-containing solid waste to limit the transfer of harmful compositions, mainly the fluorine ions, in the fluorine-containing solid waste, so that soil and underground pollution is also avoided.

The invention discloses a pure cotton bleaching bright adhesive interlining and a production method of the adhesive interlining. The surface of a coating is bright, the peeling strength of hot melt adhesive points is greater than or equal to 16N, the warp and weft direction water washing dimension variation rate is -1.0 percent to 0.5 percent, and the free and hydrolysis formaldehyde is less than or equal to 40 mg/kg. The pure cotton bleaching bright adhesive interlining and the production method have the advantages that the surface of the adhesive interlining is bright, the quality and the grade of the adhesive interlining are improved, flaws such as leaking points and missed coating can be easily inspected during the appearance inspection, the generation of unqualified products due to leaking points and missed coating is enabled to be avoided during garment press ironing, the peeling strength of the adhesive interlining is high, the warp and weft direction shrinkage rate is low, the free and hydrolysis formaldehyde is low, and the operation of the production method is easy.

The invention discloses a method for preparing an acetic acid and an acetic anhydride respectively and synchronously, which is characterized in that: a methanol, a methylacetate or a mixture of the methanol and the methylacetate and a mixed gas of carbon monoxide and hydrogen are reacted at 150 to 250 DEG C and 2.0 to 6.0 MPa; and a catalyst system used in the reaction comprises a mixture of rhodium or one of rhodium compounds and iridium or one of iridium compounds, a methyl iodide, at least one selected from mixtures of an amino acid and an amino acid derivative, the amino acid or the aminoacid derivative, and an accelerant. The method for preparing the acetic acid and the acetic anhydride in the invention has the advantages of: (1) reducing the generated tar, (2) reducing substance content of the acetic anhydride product, and (3) improving the stability of the catalyst system in the invention and avoiding the precipitation phenomenon. Due to the fact that the reaction system has no water, the corrosion to devices is also reduced.

The invention relates to a high-temperature molten steel slag treating method. A modifying agent with main components containing calcium oxide, silicon oxide and aluminum oxide is added, therefore the molar ratio of calcium oxide, silicon oxide and aluminum oxide in modified steel slag meets one or two kinds of CaO:SiO2=2.5-3:1 or CaO:SiO2:Al2O3=25-30:15-22:1, and the steel slag forms a stable spinel structure. In the method, the raw materials of the modifying agent of the steel slag have wide sources, the cost is low, the manufacture process is simple, and the method is suitable for converters, main frequency furnaces and arc furnaces to produce various kinds of steel slag. The steel slag is modified, the stability of the steel slag is good, and free calcium oxide and aluminum oxide in the steel slag can be preferentially reduced. The steel slag forms the stable spinel structure, so that the application scope of the steel slag is expanded.

The invention relates to a preparation method of a prussian blue or prussian blue analogue coated pigment. The preparation method comprises coating the surface of a base with hydrated alumina and/or hydrated zinc oxide and coating the hydrated alumina and/or hydrated zinc oxide with prussian blue or prussian blue analogue to obtain the prussian blue or prussian blue analogue coated pigment. The preparation method can solve the free problem of the prussian blue or prussian blue analogue coating the base and even large-size base. The prussian blue or prussian blue analogue coated pigment can be used in industries such as cosmetics, paint and ink.

A composite film used as the protecting film of photosensitive silver halide material is prepared from high-molecular material and nanoparticles chosen from silicon oxide, aluminium oxide and zinc oxide. Its advantage are high water and light penetrability, low surface viscosity, good antistatic action, and high strength.

The invention discloses a preparation method of p-hydroxyl biphenol, which adopts a two-step method to prepare a target product, and comprises the following steps: carrying out oxidative coupling reaction and reduction reaction on 2,6-di-tert-butyl phenol, recrystallizing to obtain white powder, adding a catalyst, dropwise adding xylene, and carrying out tert-butyl removal reaction to obtain the target product. By selecting the catalyst and dropwise adding xylene to capture tert-butyl, free tert-butyl in the reaction liquid is reduced, complete reaction is promoted, isomers or byproducts whichare difficult to remove are not generated, and the obtained product is easy to purify. Few types of reagents are added in the preparation process, xylene and isobutene obtained by reaction can be recycled, and the yield and purity of the finally obtained product are very high.

The invention provides a production method for hardenability steel. The production method comprises the steps that 1, in the electric furnace smelting step, the tapping C content is precisely controlled to be below 0.04%, due to the fact that the carbon-oxygen equilibrium is constant at a certain temperature, after the C content is reduced, the oxygen content is kept to be at a high level, precise controlling over the using amount of ferroaluminum of a deoxidizing agent is facilitated during deoxidizing at the next step, and then the quantity of a Ca element can be controlled during calcium treatment on generated aluminate; 2, in the LF furnace refining step, special refining deoxidizing slag is adopted, the ratio of the Ca to Al in the adopted refining slag system is 1.6-1.8, and the free Ca element can be reduced by precisely controlling the ratio of the Ca to the Al; 3, in the VD refining step, bottom blowing of Ar gas is adopted, the pressure of the Ar gas is 0.20-0.40 MPa, floating of inclusion is facilitated through bottom blowing of the Ar gas, and calcium compounds are promoted to be removed from molten steel; and 4, in the continuous casting step, the superheat degree is controlled to be within 30 degrees in the casting process, and floating of the calcium compounds in the molten steel is facilitated through the low superheat degree.

The invention provides a high-chroma glass-based pearlescent pigment as well as preparation method and application thereof. In the preparation method, stannous chloride is adopted for treatment to increase the surface active points, then a silane coupling agent with amino is adopted for further chemical grafting treatment to improve the surface adsorption capacity; since the amino functional grouphas remarkably strong complexing power on iron and titanium ions, the balance matching of the metal ions between the hydrolysis speed and the base material surface adsorption speed is further solved.The treated glass base material is greatly improved in the coating rate as well as the chroma. With the same particle size and the same hue, the coating rate of the treated glass base material is increased by about 10%, and the chroma and brightness are obviously improved. The high-chroma glass-based pearlescent pigment is applied to the fields of paint, coating, plastics, leather coloring, wallpaper, powder coating and cosmetics.

The invention relates to a preparation method for a manganese violet coated pigment. The method comprises the following steps: (1) depositing an adsorbent precursor on a substrate under the condition of system pH being 2-10, wherein the dosage (based on the volume of the generated adsorbent) thereof is 0.1-10% of the weight of the substrate; (2) adding a silane coupling agent under the condition of system pH being 2-10, wherein the dosage is 0-5% of the weight of the substrate; (3) adding Zeta potential regulating agent under the condition of system pH being 2-10, wherein the dosage is 0-10% of the weight of the substrate; (4) adding manganese purple pulp under the condition of system pH being 2-4, wherein the dosage (based on manganese violet pigment) is 0.1-10% of the weight of the substrate; (5) adding Zeta potential regulating agent under the condition of system pH being 2-4, wherein the dosage is 0-10% of the weight of the substrate; (6) adding a silane coupling agent under the condition of system pH being 2-4, wherein the dosage is 0-5% of the weight of the substrate; and (7) filtering, washing and drying, thereby acquiring the manganese violet coated pigment, wherein the step (3) and the step (5) meet the requirement that the dosage of the Zeta potential regulating agent is not equal to 0 at the same time. The free of the color paste of the pigment prepared according to the method cannot occur easily.

A receiver device of the cotton opener includes the rack, the driver, the roller of the cotton feeding and the cotton output part, which are the cotton box and the output roller. The cotton feeding bed is installed on the feeding roller, which is installed into the rack; the cotton feeding bed and the feeding roller form the feeding jaw; the friction roller is installed on the friction roller device, which is between the feeding roller and the output roller. The device can be used to all kinds of the cotton opener.

The invention relates to a microscopic flap lifting device used in LASIK (laser-assisted in situ keratomileusis) operation for femtosecond flap making, comprising a flap lifting part and a handle, wherein the flap lifting part is fixedly arranged on the upper end of the handle; the flap lifting part includes a straight rod section, an arc section and a flat spade section which are manufactured integrally and connectedly; the lower end of the straight rod section is coaxially connected with the upper end of the handle, the upper blunt angle turning of the straight rod section is connected with the arc section, the section diameter and conical degree of the arc section become smaller gradually, the terminal end of the arc section is connected with the flat spade section with oval tips, and the cross section of the flat spade section is centrally thick and peripherally thin in shape. The microscopic flap lifting device disclosed by the invention can thoroughly separate corneal stroma flaps and reduce corneal flap damage, corneal flap dissociation and other complications during separation process, and is helpful for completely lifting the flap; meanwhile, the oval flat chisel section can reduce separation difficulty caused by opaque bubble layer (OBL) and reduce the damage on corneal tissue caused by repeated operation, and is helpful for post-operative wound recovery.

The invention discloses a high-strength environment-friendly waterproof polyurethane coating and a preparation method thereof. The high-strength environment-friendly waterproof polyurethane coating comprises the following raw materials by weight: modified polyurethane, hydrophilic modified polyisocyanate, polyester polyol, potassium tripolyphosphate, zinc stearate, a filler, butyl acetate, a film forming aid, an antifoaming agent, a leveling agent, a dispersing agent and a catalyst, wherein the hydrophilic modified polyisocyanate is POSS-modified polyethylene glycol-modified polyisocyanate. The waterproof polyurethane coating comprehensively prepared from modified components through mixing in steps is more environmentally friendly and has better film properties, and the prepared waterproof polyurethane coating can meet the requirements for high strength and water resistance; and the coating with better performance is liquid at normal temperature, and is convenient to use, easy to store, simple in preparation process and low in cost.