Abstract: Glasses and glass ceramics with high content of cerium and tin, which include the following components: Component Wt. % SiO2 48.0 to 75.0 Li2O 8.0 to 20.5 Cerium, calculated as CeO2 4.0 to 20.0 Tin, calculated as SnO 3.1 to 15.7 and which are particularly suitable for the preparation of dental restorations with fluorescence properties largely corresponding to those of natural teeth.

Abstract: Disclosed is a high-hardness electronic glass and its preparation method. Raw materials of the high-hardness electronic glass include components, by a mass percentage, consisting of: 58.3%-62.93% of SiO2, 23.02%-25.94% of Al2O3, 1.95%-5.02% of B2O3, 2.07%-4.21% of Li2O, 0%-2.88% of Na2O, 0%-2.29% of K2O, 0%-3.30% of TiO2, 0%-3.99% of ZrO2, and 0%-4.17% of P2O5, and a sum of the mass percentages of the components is 100%.

Abstract: Disclosed is a method of manufacturing a substrate, the method including attaching a protective film having an adhesive layer formed on one surface thereof onto the substrate, providing an etchant onto the substrate to which the protective film is attached, forming a first flat part, an inclined part, and a second flat part by peeling off an end of the protective film and by changing a reaction surface area between the etchant and the substrate, and removing the protective film.

Abstract: The present invention relates to a method for the production of a glass-metal attachment for a solar receiver, the solar receiver comprising a glass tube having a diameter Dt with a thickness et and a metal ring with a diameter D?, and wherein the glass tube comprises two ends, the method comprising the steps of modifying the thickness et of the first end of the glass tube to a modified thickness em. the modified thickness em being greater than the thickness et of the first end of the tube, and attaching the metal ring with the first end of the glass tube.

Abstract: The electrically conductive pavement system includes a cold recycled asphalt mixture and a carbon black material. The carbon black material is mixed with the cold recycled asphalt mixture. The pavement system is configured to be heated. For instance, the pavement system includes a heating element and an electrical power source. The heating element may couple the electrical power source to the pavement system. In a more specific example, the heating element may include an electrical probe that include an electrically conductive cable or wire. The electrically conductive cable or wire may be selectively heated when the electrical power source is engaged. Once heated, the pavement system may have faster curing times and enhanced compaction over known pavements. The heating functionality also permits self-healing capabilities for more efficient repairs and enhanced durability. The heating functionality may also be utilized to melt ice and/or snow from a surface of the pavement system.

Abstract: A glass fiber reinforced polymer reinforcing structure comprised of glass fibers mixed with one or more polymers. Incorporated in the polymer are a hybrid mix of pristine multi-walled carbon nanotubes at 0.0-4.0 wt % of the polymer and multi-walled carbon nanotubes functionalized with carboxylic group at 0.0-2.0 wt % of the polymer. The above mixture is pultruded to produce GFRP reinforcing bars, dowels or structural profiles.

Abstract: During lightweight aggregate (LWA) production through sintering process, formation of liquid phase captures emitted gas to form pores in the LWA and leads to successful bloating. As the LWA undergoes sintering in the kiln, the liquid phase starts to form on the LWA surface. Accordingly, in a rotary kiln where the LWA are continually rolling over each other, the touching surfaces of LWAs with liquid phase start to adhere together and form lumps of LWA exiting the furnace. This method prevents agglomeration of spherical LWA during sintering. The LWA can be produced from clay, slate, shale, and potentially other waste materials. This method results in production of discrete spherical LWA particles that can be coated with waste fly ash particles to form a thin layer on the surface of LWA that will not melt during sintering and will prevent touching surfaces of LWA particles from sticking together and forming lumps.

Abstract: Composition for the production of sinks including: fillers obtained from recovered material, resin obtained from recovered material, and virgin additives obtained neither from recovered materials nor from materials of animal or plant origin. The recovered fillers include one or more of the following materials: recovered glass microspheres, recovered quartz, recovered material obtained from the grinding of sinks with a base of quartz or glass fillers and resin and aluminum trihydrate (ATH). The resin is an acrylic syrup obtained from recovered material or polyester obtained from recovered material. The virgin additives include at least one cross-linking agent that favors the cross-linking of the resin and one compatibilizing substance that favors the adhesion of the resin to the fillers, where said virgin additives are in a weight percentage of less than 9% of the total weight of the composition.

Abstract: A vascularizing, crack sealing and/or corrosion reducing repair formulation for concrete, and corresponding methods. In one general embodiment, a repair formulation includes a casting material, and an encapsulated and/or non-encapsulated biological material in the casting material. The biological material is operative to enable concrete and/or mortar structural healing. A method for non-destructive evaluation of cementitious material, in accordance with one general embodiment, includes causing a repair formulation to vascularize along a crack in the cementitious material via a biological and/or non-biological effect, characterizing the vascularized repair formulation, and outputting a result derived from the characterization.

Abstract: A cementitious composite includes a cementitious binder; water; from 0.5 to 2.0 vol % of polymer fibers; water reducing agents; and PVA (polyvinyl alcohol) porous water carriers different than the polymer fibers; wherein the cementitious composite has a weight ratio of the water to the cementitious binder in a range of 0.30:1 to 0.55:1, a weight ratio of the PVA porous powder water carriers to the cementitious binder in a range of 0.005:1 to 0.03:1, and a weight ratio of the water reducing agents to the cementitious binder in range of 0.001:1 to 0.05:1.

Abstract: Disclosed is a concrete mortar composition containing 10-50% calcium aluminate cement, 2-10% lithium salt, 5-25% setting accelerator admixture, 30-75% aggregate by weight, suitable for use wherever required, such as runways, driveways and airplane parking areas for the renovation of large concrete traffic areas such as airports in a very short time.

Abstract: Disclosed are gypsum boards, slurries, and methods of preparing gypsum board using water, uncalcined gypsum, stucco, and starch binder. The board contains a set gypsum core disposed between two cover sheets. The uncalcined gypsum and starch binder surprisingly and unexpectedly allows for the use of uncalcined gypsum while maintaining desired characteristics in gypsum wallboard, such as low board weight, sufficient strength, score/snap, fire resistance, etc. In embodiments, the presence of the uncalcined gypsum with the starch binder in the core slurry allows for excluding an amount of stucco therein.

Abstract: The present invention relates to a mortar with a composition comprising the following components expressed in percentage by weight: 65-69% calcium sulphate; 28-33% water; and 0.01-0.1% polycarboxylic acid-based setting control additive. The invention also relates to a construction material with a composition that consists of a mortar mixture such as the aforementioned mixture and a granular material selected from among ethyl vinyl acetate, cork or marble powder. According to the invention, the construction material can be used to produce construction parts, blocks or panels, and the parts produced with said construction material can be attached to each other and/or coated with the mortar.

Abstract: The present invention is directed to a pozzolanic mixture used as a supplementary cementitious material (SCM) comprising an activated clay, a limestone and a setting regulator. Moreover, it is also directed to a cementitious composition comprising said pozzolanic mixture, a clinker and a setting regulator. Finally, the invention is also directed to a concrete comprising the cementitious composition described above, fine aggregate, coarse aggregate and water, optionally the concrete may have other additives.

Abstract: A single- or two-component mortar composition including i) an aluminate binder, ii) a calcium sulfate binder, iii) one or more fillers with a raw density of at least 2.0 g/cm3, and iv) one or more lightweight fillers with a raw density of less than 1.5 g/cm3, wherein the quantity of lightweight filler equals 30 to 70 wt. %, the total quantity of aluminate binder and calcium sulfate binder equals 20 to 65 wt %, and the weight ratio of aluminate binder to calcium sulfate binder ranges from 1:1 to 1:10. When used, the mortar composition hardens quickly and is suitable as a lightweight fill for producing floor structures on substrates with a limited load-bearing capacity.

Abstract: The present invention relates to a sagger for firing a precursor material, and more specifically, to a sagger having a space internally provided to load a precursor material. When used to fire a precursor material, the sagger is capable of not only suppressing the generation of by-products but also enhancing the durability of the main body.

Abstract: To provide a Tb-containing rare earth-aluminum garnet ceramic which has a Verdet constant similar to that of a TGG single crystal used in an isolator, has an insertion loss and extinction ratio equal to or greater than those of a TGG single crystal, generates less heat when a high-power laser is applied thereto, and is unlikely to cause a thermal lens effect or thermal birefringence. The present invention relates to: a Tb-containing rare earth-aluminum garnet ceramic including a garnet polycrystal represented by the compositional formula (TbxRe1-x)3(AlySc1-y)5O12 wherein Re is at least one element selected from a group consisting of Y and Lu, x=1.0-0.5, and y=1.0-0.6, and including Si and at least one element selected from a group consisting of Ca and Mg; a method for producing same; and an isolator device obtained using the ceramic.

Abstract: Disclosed in certain embodiments are polymer compositions comprising a hybrid metal oxide particles and methods of preparing the same. In at least one embodiment, hybrid metal oxide particles comprise a continuous matrix of a first metal oxide having embedded therein an array of metal oxide particles comprising a second metal oxide. In at least one embodiment, the hybrid metal oxide particles are substantially non-porous.

Abstract: There is provided at least one of a sintered body having both excellent mechanical strength and translucency and a method for producing the sintered body. The sintered body comprises a matrix of zirconia in which a stabilizing element and lanthanum are dissolved to form a solid solution, the zirconia having a cubic phase fraction of 95% or more, and in which the amount of the stabilizing element is 8% or more by mole and 12% or less by mole.

Abstract: A method includes forming an article from a silicon-rich refractory mixture. The silicon-rich refractory mixture includes a silicon-rich silicon carbide preceramic polymer and a silicon carbide powder. The method includes heating the preform to pyrolyze the silicon-rich silicon carbide preceramic polymer and form a silicon-rich refractory material. The silicon-rich refractory material includes the silicon carbide powder and excess silicon in a silicon carbide matrix. The method further includes heating the silicon-rich refractory material to oxidize at least a portion of the excess silicon and form a reinforced refractory material. The reinforced refractory material includes a silicon dioxide phase at grain boundaries of the silicon carbide powder.

Abstract: A method for manufacturing a part made of ceramic matrix composite (CMC) material includes producing a fibrous preform from silicon carbide fibres; consolidating the fibrous preform by gas-phase chemical infiltration; injecting a slurry including a silicon carbide particle powder into the consolidated fibrous preform; and densifying by infiltrating the preform with a composition based on molten silicon to give a part made of CMC material. The slurry further includes at least one organic binder. The method includes, prior to the infiltrating of the preform with a composition based on molten silicon, pyrolysing the organic binder so as to form a carbon-containing residue in the fibrous preform.

Abstract: A functionally graded (FG) SiAlON composite cutting tool includes a cutting head having a cutting surface containing the FG SiAlON composite. The FG SiAlON composite is obtained by sintering one or more powder compositions containing SiO2 particles having a particle size of 20 to 50 nanometers (nm), AlN particles having a particle size of up to 100 nm, Si3N4 particles having a particle size of 300 to 500 nm, Al2O3 particles having a particle size of up to 100 nm, Yb2O3 particles having a particle size of up to 100 nm, and one or more reinforcement additives selected from the group consisting of cobalt (Co) particles, titanium carbonitride (TiCN) particles, cobalt alloy particles, and a boron nitride compound. The one or more reinforcement additives have an average particle size in a range of 50 nm to 35 micrometers (?m).

Abstract: A method is provided for forming a carbon/carbon (C/C) disk with boron nitride (BN) doping. Borazine is generated using a set of borazine precursors. Starting carbon fibers are coated or impregnated with the borazine in an inert atmosphere. The starting carbon fibers are needled into layered fabric and the layered fabric is needled into boards from which a preform is cut, the needling and cutting performed in the inert atmosphere. The borazine in the preform is stabilized to convert the borazine to polyborazylene. The polyborazylene in the preform is cured. The polyborazylene in the preform is then crystalized to form BN particulates. The preform with the BN particulates is carbonized and then densified with pyrolytic carbon.

Abstract: Provided herein are active flow-through carbonation curing systems useful for contacting carbon dioxide (CO2) gas streams with concrete materials under ambient pressure. This contacting causes a carbonation reaction in which CO2 forms materials, such as, but not limited to, calcium carbonate (CaCO3). The methods include, but are not limited to, contacting a conditioned flue gas containing CO2 inside of a carbonation chamber with green bodies or concrete components in which flue gas properties such as temperature, relative humidity, flow rate, and flow direction, are self-adjusted during the curing process based on a self-sensing instrumentation system inside a curing chamber and carbonation kinetic regression model. This system improves CO2 capture efficiency and material performance while reducing processing energy.

Abstract: Disclosed are surface retarder composition and method for etching cementitious materials which achieve a desirable light “acid etch” look without using muriatic (hydrochloric) acid or sand blasting, removing the human health and environmental concerns. Formulations in accordance with embodiments disclosed herein are easier to remove from formwork or molds after demolding than conventional retarder paints. Surface retarders prevent the hydration of cement particles, which allows the uncured layer of paste next to the form to be removed such as by washing with water or other fluids, or by brushing, revealing aggregates. Also disclosed are molded cement and concrete materials or articles exhibiting such light etch.

Abstract: There is provided a composition for joining and/or treating ceramic materials. The composition can comprise approximately 15 wt % to approximately 90 wt % ceramic nanoparticles, approximately 0.1 wt % to approximately 8 wt % dispersant, and approximately 2 wt % to approximately 84.9 wt % solvent. There is also provided a method of joining a first ceramic part and a second ceramic part at a joining interface to form a joined ceramic component, and a method of treating a ceramic component at a treatment surface to form a treated ceramic component. There is further provided a joined ceramic component.

Abstract: A method can include reducing calcium sulfate to calcium sulfide, converting calcium sulfide to calcium oxide, optionally using the calcium oxide to form a product, optionally oxidizing sulfur dioxide to sulfuric acid, and optionally using the sulfuric acid in fertilizer production.

Abstract: The present invention relates to an efficient silicate solubilizing Streptomyces sp. CS13-6 with a preservation No. of CGMCC No. 25523, which has high capabilities of silicate solubilization, dissolving phosphorus and potassium, fixing nitrogen, and producing siderophore and IAA. The strain can grow well at pH 5-10 and 20-40° C. In addition, it can grow normally when the NaCl content is 4%, and has high acid, alkali and salt resistance and wide temperature adaptability. The present invention further discloses use of the strain in promoting plant growth, improving soil quality and the like. The strain can be used as an active ingredient for preparation of biological silicon fertilizers, soil conditioners, etc., so as to effectively improve the nutrient structure in the soil, improve soil quality, reduce the use of chemical fertilizers, and achieve a purpose of improving quality and increasing yield.

Abstract: A method of increasing delivery of irrigation water and optionally a fertilizer to a predetermined depth in soil containing agricultural crops is disclosed. The method includes introducing formic acid to irrigation water to form a formate-enhanced irrigation water having a formate concentration of from about 10 ppm to about 10,000 ppm, and distributing the formate-enhanced irrigation water to the soil in an amount sufficient to (i) increase a flow rate of the irrigation water through the soil, (ii) reduce a compaction of the soil, and/or (iii) reduce a calcium concentration in the soil. Methods of making a formate salt from carbon dioxide, a hydrogen source and an alkali metal, alkaline earth metal, or ammonia source and generating carbon credits are also disclosed.

Abstract: A system is provided for carbon dioxide (CO2) emission recovery. The system includes a methanization reactor. The methanization reactor is configured to receive CO2 separated from one or more off gases of a brake manufacturing process, convert the CO2 and supplied hydrogen (H2) via methanization to produce methane (CH4); and supply the produced CH4 to at least one of a carbon/carbon (C/C) preform production process or another system for heat generation.

Abstract: A method for recovering cyclopentene, includes allowing a metathesis catalyst to act on a ring-opened polymer having a structural unit derived from cyclopentene to recover cyclopentene.

Abstract: A hydrogenated decarboxylated rosin acid (HDCR) composition is disclosed comprising, based on total weight of the composition, a plurality of hydrogenated decarboxylated rosin acid (HDCR) components. The HDCR composition contains: (a) 45 to 100 wt. % of the HDCR components have C19 carbons and a MW of 262 g/mol; (b) up to 50 wt. % of the HDCR components have C19 carbons and a MW of 256 g/mol; (c) up to 20 wt. % of the HDCR components have C19 carbons and a MW of 252 g/mol, or C19 carbons and a MW of 260 g/mol; and (d) up to 25 wt. % of the HDCR components have C13 carbons and a MW of 180 g/mol. The HDCR composition has an oxygen content of <0.5%. The HDCR composition shows enhanced oxidative stability and Gardner color, and can be used in fertilizer coatings, cleaning agents, defoamers, cosmetics, lubricants, etc.

Abstract: The present disclosure provides an ?-olefin extractant and a method for separating an alkane and an ?-olefin, wherein the ?-olefin extractant comprises an alcohol-amine, a saturated monoketone having a carbon chain length of 7-10 and a monovalent salt of a Group IB metal, wherein the alcohol-amine, the saturated monoketone having a carbon chain length of 7-10 and the monovalent salt of a Group IB metal are in a mass ratio of (0.9-2.0):(0.8-1.5):(0.1-0.6). In the present disclosure, the technical principle of complexing extractive rectification is utilized and achieves the purpose of separating an olefin from an alkane by adding a complexing extractant to form a relatively stable complex between a metals and the olefin. The present disclosure has advantages of good separation effect and high product yield.

Abstract: A method of making chlorofluorohydrocarbons including, contacting, a fluorinated hydrocarbon reagent in the vapor phase, with hydrogen chloride (HCl). The reaction is conducted in the presence of an effective amount of a catalyst, at an elevated temperature sufficient to effect hydrochlorination to form a reaction mixture including a chlorofluorohydrocarbon.

Abstract: The invention relates to a process for the production of 1,4-butanediol comprising the preparation of a fermentation broth comprising 1,4-butanediol from renewable sources and water, separation of a liquid fraction comprising said 1,4-butanediol and water from one or more solid fractions, said liquid fraction comprising 2-pyrrolidone in an amount higher than 80 ppm, one or more passages of the resulting liquid fraction through a bed comprising one or more cation-exchange resins thereby providing an output pH of said liquid fraction from 4 to 2, one or more passages of the resulting liquid fraction through a bed comprising one or more anion-exchange resins thereby providing an output pH of said liquid fraction from 8 to 11, and the distillation of the liquid fraction thereby provided so as to obtain a composition having a concentration of said 1,4-butanediol higher than 99.0% by weight and comprising 2-pyrrolidone in an amount lower than 6 ppm.

Abstract: A device for refining ethanol is disclosed, which includes a fermentation unit, a low-pressure column, a medium-pressure column, a high-pressure column and a membrane separation unit. A method for refining ethanol is disclosed, which specifically includes the following steps: after fermenting the biomass feedstock, feeding fermented mash into a low-pressure column and a high-pressure column which are connected in parallel for refining, mixing two column top distillates, and feeding the mixed column top distillates into a medium-pressure column for further rectification; and purifying the refined ethanol vapor with higher purity obtained after rectification in the medium-pressure column by a membrane separation unit to obtain high-concentration ethanol product vapor.

Abstract: Disclosed is a preparation method for an SGLT2 inhibitor intermediate V, the method comprising: adding a compound IV to a solvent, and in the presence of a catalytic reagent, carrying out heat preservation reaction with a fluorination reagent. The preparation process for the intermediate V is simple in operations, mild in reaction conditions and high in safety, facilitates quality control and is suitable for industrial production. In addition, the intermediate V prepared by the method is high in purity, has few side reaction product monofluoro-impurity shown as structural Formula V?, is easy to purify, and is applicable to quality research on active pharmaceutical ingredients and preparations of the SGLT2 inhibitor.

Abstract: A method of producing formaldehyde, the method comprising: generating electrolytic hydrogen from the electrolysis of water; providing a feedstock gas stream comprising the electrolytic hydrogen and one or both of carbon monoxide and carbon dioxide; converting at least a portion of the feedstock gas to methanol; converting at least a portion of the methanol to formaldehyde and hydrogen; separately recovering at least some of the formaldehyde and at least some of the hydrogen; and recycling at least some of the recovered hydrogen to the feedstock gas stream.

Abstract: The present application pertains to processes producing oxides using a weak acid intermediate. In one embodiment a material comprising calcium carbonate is reacted with a solution comprising aqueous carboxylic acid to form a gas comprising carbon dioxide and a solution comprising aqueous calcium carboxylate. The solution comprising aqueous calcium carboxylate is reacted with sodium sulfate to form a solution comprising aqueous sodium carboxylate and a solid comprising calcium sulfate. The solution comprising aqueous sodium carboxylate is reacted with sulfur dioxide to form sodium sulfite and an aqueous carboxylic acid. The sodium sulfite is separated from said aqueous carboxylic acid and reacted to form a solid comprising calcium sulfite which is decomposed to form calcium oxide and sulfur dioxide.

Abstract: The present invention relates to a method for preparing terephthalic acid, and terephthalic acid prepared therefrom. Specifically, according to one embodiment of the present invention, by including the step of hydrolyzing a compound prepared by depolymerizing a waste polyester using a specific hydrolysis catalyst, terephthalic acid can be prepared in an environmentally friendly manner, and high purity terephthalic acid can be provided.

Abstract: A method for preparing acrylic acid, the method including: obtaining a reaction product including unreacted lactic acid, water, a light gas component, and acrylic acid by supplying a lactic acid aqueous solution to a reactor to allow a dehydration reaction to proceed; supplying the reaction product to a first cooling tower to separate the reaction product into a lower fraction containing unreacted lactic acid and an upper fraction containing water, a light gas component, and acrylic acid; supplying the upper fraction of the first cooling tower to a second cooling tower to separate a lower fraction containing water and acrylic acid therefrom; and obtaining acrylic acid by purifying the lower fraction of the second cooling tower.

Abstract: The present disclosure describes hyperpolarized materials for use in nuclear magnetic resonance, magnetic resonance imaging, or similar applications. The present disclosure describes methods for producing hyperpolarized materials for use in nuclear magnetic resonance, magnetic resonance imaging, or similar applications. The present disclosure describes precursor compounds for use in producing hyperpolarized materials for use in nuclear magnetic resonance, magnetic resonance imaging, or similar applications.

Abstract: A process for the purification of 5-aminosalicylic acid (5-ASA) comprising the steps of: i) preparing an aqueous solution or suspension of 5-ASA, optionally added with at least another solvent; ii) adding a base until reaching a pH between 6 and 9; iii) adding an acid to the solution obtained from step ii) until reaching a pH between 3.2 and 5.2, preferably between 4.3 and 4.6, with consequent precipitation of 5-ASA; iv) separating the precipitated 5-ASA from step iii).

Abstract: Provided is a compound of Formula (I): Besides, provided is a pharmaceutical composition comprising the above compound and their use for preventing or treating cocaine addiction, reducing the likelihood of a relapse of cocaine addiction, ameliorating a physical symptom of cocaine addiction, and neuroregeneration. Provided is a novel use of a Hausp K444R point mutant mouse.

Abstract: The present disclosure relates to compounds of Formula (I) or pharmaceutically acceptable salts thereof. The present disclosure also relates to uses of the compounds, e.g., in treating or preventing diseases, disorders, or conditions (e.g., associated with mitochondria).

Abstract: The present disclosure is directed to the synthesis and application of novel compounds having unique and desired flavor and/or fragrance characteristics. The compounds of the present disclosure can be employed alone or incorporated as fragrance or flavor compounds in fragrance or flavor compositions. The present disclosure is also directed to consumer products comprising such fragrance or flavor compounds and/or fragrance or flavor compositions.

Abstract: The present invention relates to an improved process for the industrial-scale production process of Tau-fluvalinate in a purified form comprising optimization of the reaction conditions by timely acid neutralization, resulting in preventing corrosions of the expensive plant equipment.

Abstract: The disclosure pertains to a urea production plant and process using a thermal stripper, wherein the reaction mixture is separated in two parts, wherein the first part is supplied at least in part to the thermal stripper and the second part at least in part bypasses the thermal stripper and is supplied to a medium pressure recovery section.

Abstract: Disclosed is a compound of the general formula (1) R—X—SO3—HN+(RaRbRc) (1), wherein i) R is selected from the group of C6 to C20 alkyl groups; ii) X is selected from the group a) C6H4, b) (OC2H4)nO, in which n=2 to 8, c) C(O)—N(CH3)CH2CH2, and d) R1O(O)CCH2(R1O(O)C)CH, in which R1?C6 to C20 alkyl; iii) at least two of the groups Ra, Rb, and Rc are selected independently of each other from the group consisting of C3 to C12 alkyl and C3 to C12 hydroxyalkyl groups. Also disclosed are detergents containing the compound, and washing and cleaning methods using the compound, and methods for producing same.

Abstract: Provided is a multifunctional group metal corrosion inhibitor, as shown in one or more of formula (I-a) to formula (I-c). The metal corrosion inhibitor disclosure is a multifunctional group metal corrosion inhibitor comprising Schiff base or a derivative structure thereof, a catechol group and a mercapto group. A plurality of active functional groups are introduced, so that the active adsorption site of the inhibitor can be increased, and the synergetic effect of the three functional groups can enhance the adsorption effect of the inhibitor and a metal, And thus, the inhibitor is suitable for applicable for adsorptions of plurality of metals. Therefore, the inhibitor can exert a high anti-corrosion efficiency under the condition of a low addition amount, and provides a protection effect for the plurality of the metals.