85 results about "Triisopropanolamine" patented technology

The invention discloses premixed flow-state solidified soil and a preparation method thereof, and the premixed flow-state solidified soil comprises the following components in parts by weight: 100 parts of silty clay; 8 to 15 parts of a curing agent; 48 to 90 parts of water; wherein the curing agent comprises the following components: 10 to 15 parts of sulphoaluminate cement; 40 parts to 55 parts of superfine steel slag powder; 30 to 40 parts of fly ash; 0.5 to 1.5 parts of sodium silicate; 0.1 to 0.3 part of a foaming agent; 0.1 part to 0.2 part of sodium thiocyanate; 0.1 part to 0.2 part of hydroxymethyl cellulose; 0.05 part to 0.2 part of triisopropanolamine; 0.1 part to 0.5 part of calcium nitrate; and 0.5 to 1 part of a polycarboxylic acid water reducing agent. The preparation method of the premixed flow-state solidified soil is suitable for using silty clay as a raw material, and greatly improves the strength, compactness, fluidity and other properties of the premixed flow-state solidified soil.

The invention relates to a high-performance nickel oxide thin film for a perovskite solar cell and a preparation method of the high-performance nickel oxide thin film, and belongs to the technical field of novel solar cells. A novel method for preparing the nickel oxide hole transport layer based on a traditional chemical bath deposition (CBD) process is provided; a novel amino alcohol ligand (triisopropanolamine) is introduced into a precursor solution to form a strongly-combined complex with Ni < 2 + >, slow release of Ni < 2 + > in the in-situ deposition process is promoted, and a continuous and compact Ni (OH) 2 intermediate is formed; the finally obtained low-defect NiOx film is improved in the aspects of coverage, conductivity and hydroxyl number; in order to further improve the hole mobility, metal ions such as Cu < + >, Rb < + > and Li < + > are introduced to perform doping modification on NiOx; by doping the metal ions, the lattice structure of NiOx can be changed, and the hole extraction capability is improved; the generated orbital hybridization phenomenon can also adjust the valence band position, more favorable energy level matching is obtained, and a new research method is provided for the development of an efficient hole transport layer.

The invention discloses a low-carbon cement concrete steam curing reinforcing agent and application thereof, the reinforcing agent for high-iron phase cement clinker is obtained through screening, and the reinforcing agent can adapt to a steam curing process and rapidly improve the early strength and the final strength of a concrete member. The reinforcing agent comprises the following components in parts by weight: 0.5-5 parts of nano calcium carbonate, 0.02-0.2 part of an alcohol amine additive, 0-2 parts of inorganic salt and 0.01-0.2 part of a surfactant, the alcohol amine additive is selected from diethanolisopropanolamine, monoethanolisopropanolamine, triethanolamine and triisopropanolamine, the inorganic salt is selected from aluminum sulfate, sodium metaaluminate, sodium chloride, sodium sulfate and calcium chloride, and the surfactant comprises at least one of polydimethylsiloxane, fluorosiloxane and ethylene glycol siloxane. According to the invention, by adjusting the temperature system and reinforcing agent components before steam curing, the problem of effect reduction caused by combination of an alcohol amine reinforcing agent and a steam curing process is reversed, so that the reinforcing agent and the steam curing process generate a synergistic effect.

The invention belongs to the technical field of raw material preparation, and particularly relates to a production method for co-production of isopropanolamine and DL-2-aminopropanol. The production method for co-production of isopropanolamine and DL-2-aminopropanol comprises the following steps: adding ammonium carbonate, ammonium carbamate, epoxypropane and water into a high-pressure reaction kettle, uniformly stirring, heating to 88-90 DEG C, preserving heat for 30-35 minutes under 0.8 MPa, then heating to 100-103 DEG C, reacting for 40-45 minutes under 1.0 MPa, cooling to room temperature, filtering, washing, and drying to obtain the DL-2-aminopropanol. And after the reaction is finished, carrying out post-treatment to obtain a mixture of isopropanolamine and DL-2-aminopropanol. According to the production method for co-production of isopropanolamine and DL-2-aminopropanol, the process is simple, parameters are easy to control, reaction conditions are relatively mild, it is guaranteed that a large amount of monoisopropanolamine and DL-2-aminopropanol are generated, and meanwhile generation of by-products diisopropanolamine and triisopropanolamine is reduced.

The invention discloses a polyurethane filling adhesive as well as a preparation method and application thereof, and relates to the field of cable materials. The polyurethane filling adhesive comprises hydrophobic polyurethane, an anti-hydrolysis agent, a heat conducting agent and a flame retardant; the hydrophobic polyurethane is formed by polymerizing a soft segment, a hard segment and an amine chain extender, and the soft segment comprises at least one of polytetrahydrofuran ether, dihydroxybutyl-terminated polydimethylsiloxane and aminopropyl terminated polydimethylsiloxane; the anti-hydrolysis agent comprises triisopropanolamine, a carbodiimide anti-hydrolysis agent and an epoxy silane anti-hydrolysis agent. Hydrophobic polyurethane adopts a soft segment containing hydrophobic groups, hydrolysis is inhibited from the source, meanwhile, the hydrolysis resistance is improved in cooperation with the ternary compound hydrolysis-resistant agent, a compact highly-physical cross-linked network is constructed, hydrolysis is inhibited from a chemical structure and a physical barrier community through cooperation of the three components, and long-acting hydrolysis-resistant protection is achieved; and the stability of heat-conducting property and flame-retardant property of the material is maintained in a severe environment in which a high-voltage cable is used.

The invention relates to the technical field of phosphorus chemical industry solid waste resource utilization, and particularly discloses a liquid triisopropanolamine feeding device for phosphorus slag micro powder dry grinding production, which comprises a liquid storage assembly, a metering conveying mechanism, a preheating mixing mechanism, a dry grinding machine butt joint assembly and an intelligent regulation and control module. The liquid storage assembly stores materials under the protection of nitrogen and at a constant temperature; the metering conveying mechanism achieves constant-temperature and accurate metering conveying of materials through a variable-frequency plunger pump, an electromagnetic flowmeter and a pipeline with a heat preservation heat tracing function. The preheating mixing mechanism atomizes liquid triisopropanolamine through an atomizing nozzle, and the liquid triisopropanolamine and phosphorus slag raw materials are forcibly mixed to be uniform in a heating cavity through a stirring assembly. The dry mill butt-joint assembly realizes sealed conveying of the mixed materials to the dry mill; and the intelligent regulation and control module is connected with and cooperatively controls each component. The problems of large metering error, high volatilization loss, non-uniform mixing and easy blockage in the prior art are solved, and the phosphorus slag grinding efficiency, the product quality and the system operation continuity are remarkably improved.

The present invention provides a heat damage inhibitor composition for hair that suppresses heat-induced damage to the hair and maintains smooth texture and manageability even after heat treatment. [Solution] A heat damage inhibitor composition for hair, comprising (A) an arginine derivative represented by general formula (1) and (B) an anionic water-soluble polymer, wherein the weight blending ratio ((A) component / (B) component) is 0.5 to 10.0. TIFF2026049878000009.tif3864 (In general formula (1), M is a hydrogen atom, an alkali metal, an alkaline earth metal, or an alkanolamine such as monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diisopropanolamine, or triisopropanolamine.)

The invention discloses a method for preparing cement by using modified lithium slag composite multi-source solid waste, and belongs to the technical field of building materials and solid waste resource utilization. The core of the method is that the lithium slag is subjected to'targeted curing-gradient excitation 'modification: firstly, an aluminum salt solution is adopted for pretreatment, and soluble lithium ions are specifically cured to eliminate the hydration inhibition effect of the soluble lithium ions; then co-grinding with calcined magnesium oxide, and adding sodium silicate and calcium sulfate whiskers step by step for gradient excitation; the modified lithium slag, granulated blast furnace slag, fly ash, Portland cement clinker, desulfurized gypsum / phosphogypsum composite gypsum and the like are subjected to synergistic grinding, then a composite exciting agent composed of solid water glass, triisopropanolamine and calcium formate is added, and the cement is prepared through homogenization. According to the invention, the problem of performance degradation under the condition of high doping amount of the lithium slag is fundamentally solved, the prepared cement has the outstanding advantages of normal coagulation, high strength (especially later strength) and small dry shrinkage, and high value-added resource utilization of the multi-source solid waste is realized.

The present invention relates to the technical field of building materials, and a kind of foamed concrete and its admixture and admixture adding method are provided. The admixture of the present invention is composed of component A and component B, and by mass fraction, the component A is composed of 130-160 parts of sulfonated acetone formaldehyde condensation products, 40-60 parts of lignin sulfonate, 80-120 parts of calcium formate, 8-25 parts of hydroxypropyl starch ether or soluble starch, and 4-8 parts of sodium sulfate, and the component B is composed of 30-60 parts of triethanolamine or triisopropanolamine, and 18-25 parts of hydroxypropyl methylcellulose. The admixture of the present invention is designed for coal slag, has the function of alkali excitation, makes coal slag self-reaction, can replace the amount of part of cement, the admixture of the present invention can fully replace fly ash, reduces material cost, and the present invention also provides a method for adding an admixture, which is added in two steps to ensure that the admixture plays the best role with the minimum amount.

The invention provides a grinding aid composition for improving the grinding efficiency of superfine cement, which comprises the following components in percentage by mass: silicate ester prehydrolysate (30-45% of alkoxy silane, 40-55% of alcohol solvent and 5-10% of acid catalyst), a surface adsorbent (8-12% of triethanolamine or triisopropanolamine), a dispersion stabilizer (2-4% of polycarboxylic acid ether with molecular weight of 2000-5000), and the balance of water. And an optional adjuvant (1-3% of acetylacetone). The preparation method comprises a pre-hydrolysis stage and a compounding stage. During application, the surface adsorbent and cement are premixed, then prehydrolysate is added for common grinding, and the dispersion stabilizer is added in stages. According to the composition, the grinding energy consumption is reduced by 20-30%, the particle aggregation index (CI value) is reduced to below 0.35, the specific surface area of cement reaches 500-800m < 2 > / kg, the compressive strength in 3 days is improved by 20-35%, the compressive strength in 28 days is improved by 10-15%, and the composition is economical and efficient.

The application belongs to the technical field of solid waste utilization, and discloses a high-activity conductive steel slag composite activator, a preparation method and application, which comprises the following components in parts by mass: polyol amine 0.6-1 part, polyol 2-4 parts, sodium citrate 0.8-1.2 parts, calcium oxalate 1-1.5 parts, silica ash 0.2-0.6 parts, and carbon nanotube array 0.05-0.1 part; the polyol amine comprises glycerol, triethanolamine, diisopropyl alcohol amine and triisopropyl alcohol amine; and the polyol is ethylene glycol. The polyol amine, the polyol, the sodium citrate, the calcium oxalate, the silica ash and the carbon nanotube array are mixed in parts by mass; and the mixture is subjected to magnetic stirring for 10 hours. The application has obvious improvement effect on the conductivity of steel slag cement, and the carbon nanotube array reduces the resistivity, which is beneficial to the health monitoring of soil and the active alarm of concrete diseases. The application has lower cost, rationally utilizes waste resources, and is beneficial to the ecological environment.

The present invention relates to a method for deactivating an acid catalyst during a production process of a polyoxymethylene copolymer (cPOM) by adding (A) triisopropanolamine (tris(2-hydroxypropyl)amine) and / or (B) sodium carbonate and / or sodium bicarbonate, preferably (A) triisopropanolamine (tris(2-hydroxypropyl)amine) and (B) sodium carbonate and / or sodium bicarbonate, to a mixture (M1) comprising the polyoxymethylene copolymer (cPOM) and the acid catalyst.

The invention discloses a clay stabilizer for a polymer dry powder direct distribution variable-viscosity fracturing fluid. The clay stabilizer is prepared from quaternary ammonium salt, an alcohol amine compound and a polyamine compound as raw materials in a solvent. The quaternary ammonium salt is quaternary ammonium salt with the carbon chain length of C12-C18; the alcohol amine compound is selected from at least one of ethanolamine, dimethyl propanolamine, hydroxyethyl piperazine, piperidine, isopropanolamine, triisopropanolamine, aminomethyl propanolate, hydroxyethyl ammonium salt and the like; the polyamine compound is selected from any one of poly dimethyl diallyl ammonium chloride, polyquaternary ammonium salt, poly allylamine, polyurea, polybutanediamine, polyethyleneimine, polyethylene polyamine and a polyethyleneimine cross-linked substance. The clay stabilizer disclosed by the invention is particularly suitable for polymer dry powder direct distribution variable-viscosity fracturing fluid, the stability of clay can be remarkably improved, particularly, excellent inhibition performance can still be kept under high-temperature and high-salt conditions, stratum damage is reduced, and the application requirements in complex environments of oil fields are met.

The invention belongs to the technical field of lubricants, and discloses a lubricant containing Guerbet alcohol derivatives and a preparation method and application thereof. The lubricant is prepared from the following components in parts by weight: 2 to 6 parts of Guerbet alcohol derivative, 0.2 to 1 part of sulfurized isobutylene, 0.05 to 0.3 part of tungsten disulfide nanosheet, 0.01 to 0.1 part of surface modified fullerene, 0.5 to 1.5 parts of triisopropanolamine borate, 80 to 95 parts of 2-octyl-dodecyl cyclopentane, 0.3 to 0.8 part of antioxidant and 0.1 to 0.5 part of antirust agent. The Guerbet alcohol derivative is an ester derivative of Guerbet alcohol; the surface modified fullerene is obtained by modifying fullerene by using dodecyl mercaptan and azodiisobutyronitrile. When ester synthesized from isostearyl alcohol is used as an ester derivative of Guerbet alcohol, the lubricant still has good lubricating performance. Furthermore, the high-temperature-resistant and high-pressure-resistant oxidation performance is good.

The invention discloses a kind of low carbon cement concrete steam curing strengthening agent and application thereof, the present invention screens and obtains a kind of strengthening agent for high iron phase cement clinker, and the strengthening agent can be adapted to steam curing process, and quickly improves the early strength and ultimate strength of concrete member.The strengthening agent includes 0.5-5 parts of nano-calcium carbonate, 0.02-0.2 parts of alcoholamine additives, 0-2 parts of inorganic salts, 0.01-0.2 parts of surfactants; Alcoholamine additives are selected from diethanol monoisopropanolamine, monoethanol diisopropanolamine, triethanolamine, triisopropanolamine, and inorganic salts are selected from aluminum sulfate, sodium metaaluminate, sodium chloride, sodium sulfate, calcium chloride, and the surfactant includes at least one of polydimethylsiloxane, fluorosilicone, and ethylene glycol siloxane.The present invention reverses the effect decline problem caused by the combination of alcoholamine strengthening agent and steam curing process by adjusting the temperature system and strengthening agent component before steam curing, so that strengthening agent and steam curing process produce synergistic effect.

The present application relates to an alkoxylated polymer consisting of (i) triethanolamine (TEA) and / or triisopropanolamine (TIPA) units and (ii) chains of alkylene oxide units, where the components are chosen so as to give rise to a biodegradable polymer with washing power that can be synthesized with reduced dioxane formation. The application is also directed to a cleaning composition comprising the alkoxylated polymer, to the use of the inventive polymer for boosting the primary washing power of washing compositions, to a cleaning method and to the use of (i) triethanolamine (TEA) and / or triisopropanolamine, (ii) ethylene oxide (EO) and (iii) propylene oxide (PO) for low-dioxane production of an alkoxylated polymer.

The invention relates to the field of concrete building materials, and provides a nano calcium carbonate dispersion stabilizer, a preparation method thereof and a nano calcium carbonate dispersion liquid. The nano calcium carbonate dispersion stabilizer is prepared from the following raw materials in parts by weight: 10 to 20 parts of triisopropanolamine, 80 to 90 parts of acrylic acid-acrylamide copolymer and 0.1 to 0.5 part of thickening resin. According to the nano calcium carbonate dispersion stabilizer, the triisopropanolamine, the acrylic acid-acrylamide copolymer and the thickening resin are combined and matched, so that the nano calcium carbonate dispersion stabilizer has a relatively high dispersion effect, has a particularly obvious dispersion effect on nano calcium carbonate, and can effectively prevent the nano calcium carbonate from being agglomerated.

The invention relates to the technical field of cement auxiliaries, in particular to an enhanced efficient cement activation grinding aid and a preparation method thereof. The cement activation grinding aid is prepared from the following raw materials in parts by weight: 10 to 20 parts of ethylene glycol, 10 to 25 parts of propylene glycol, 5 to 8 parts of rice hull ash, 15 to 20 parts of urea, 10 to 18 parts of triisopropanolamine, 10 to 15 parts of polyol, 5 to 10 parts of a surfactant, 2 to 7 parts of a water reducing agent, 3 to 10 parts of flower-like composite nanoparticles and 50 to 60 parts of water. According to the cement activation grinding aid disclosed by the invention, the prepared flower-shaped composite nanoparticles are applied to preparation of the cement grinding aid, and the cement activation grinding aid has a relatively large specific surface area and excellent tribological performance and can form a firm structure with materials, so that the fluidity can be improved, agglomeration is prevented, and meanwhile, the cement activation grinding aid also has grinding aiding and lubricating effects; and the grinding efficiency is remarkably improved when the doping amount is small, so that the efficient grinding assisting effect is achieved.

The invention provides a composite functional cement additive and a preparation method thereof, and belongs to the technical field of cement. The additive comprises the following components: polycarboxylic acid modified condensation, triisopropanolamine, triethanolamine and sodium gluconate. The polycarboxylic acid modified condensation compound is formed by copolymerizing methyl allyl polyoxyethylene ether, acrylic acid and 2-hydroxyethyl methacrylate phosphate which are used as comonomers. Through molecular design and component compounding, multiple synergistic effects are generated. And the unique structure can effectively delay the aggregation of cement particles and greatly improve the workability of the slurry. All functional components are integrally designed, so that the compatibility problem is avoided, and the performance stability is ensured. Meanwhile, by refining pores and optimizing a microstructure, the anti-permeability and durability of the concrete are remarkably enhanced, and the comprehensive performance is remarkably improved.

This invention discloses a modified volcanic rock ultrafine composite admixture and its preparation method, belonging to the technical field of building materials and solid waste resource utilization. The admixture is composed of volcanic rock, S95 grade mineral powder, fluorogypsum, silica fume, lime powder, nano-alumina, triisopropanolamine, and polycarboxylate superplasticizer in a specific ratio. The invention also discloses its preparation method, including drying, weighing, and co-grinding the raw materials to a D50 of 7.0-8.0 μm. Through the synergistic activation effect among the components, especially the depolymerization of the volcanic rock vitreous network by F⁻ in the fluorogypsum, the adjustment of the calcium-silicon ratio between the mineral powder and volcanic rock, and the combined effect of nanomaterials and chemical additives, the early and late-stage activity of the volcanic rock is significantly improved, and the water demand is reduced. The obtained admixture has a 7-day activity index ≥85%, a 28-day activity index ≥88%, and a water demand ratio ≤108%, and can directly replace traditional mineral powder and fly ash in concrete, solving the problem of the scarcity of high-quality admixtures in western regions, and has significant economic and social benefits.

The embodiment of the invention discloses a concrete homogenizing agent solution. The concrete homogenizing agent solution is prepared from the following raw materials in parts by mass: 0-3 parts of propylene glycol, 1-15 parts of triisopropanolamine, 0-3 parts of ethylene glycol, 1-3 parts of sodium polyacrylate and 76-98 parts of clear water. The concrete homogenizer solution in the embodiment of the invention can reduce the water consumption per square meter of concrete and effectively improve the strength of the concrete.

The application discloses a kind of high-efficiency solidification and digestion method of river and lake sediment, it is related to sludge treatment technical field, river and lake sediment and sulphoaluminate cement, silane modified montmorillonite, triisopropanolamine modified steel slag, quicklime are fully stirred and mixed, then the obtained mixture is backfilled to river and lake, open air natural curing 10-15 days, after river and lake is recharged with water.The application adds a certain amount of solidifying agent composed of sulphoaluminate cement, silane modified montmorillonite, triisopropanolamine modified steel slag and quicklime in river and lake sediment, and the treatment effect is good, not affected by the content of organic matter in river and lake sediment, and the obtained solidified sludge has high strength.

The invention discloses lightweight low-carbon concrete and a preparation method thereof, and relates to the technical field of concrete. The coconut shell fibers are modified with the assistance of enzymolysis by utilizing triisopropanolamine, a physical adsorption layer is formed by the triisopropanolamine through microwave irradiation, then the physical adsorption layer cooperates with lithium aluminate in a concrete matrix, the condensation speed and the early strength of the concrete are improved, meanwhile, the volcanic slag is used as lightweight aggregate, and the cost is reduced. The preparation method comprises the following steps: firstly, preparing the concrete to improve the mechanical property and corrosion resistance of the concrete, then replacing part of cement with coconut shell ash, pretreating coconut shells with a calcium salt solution before the coconut shell ash is prepared to enhance the mechanical property of the concrete, and then during a calcining process, adding ammonia gas and silicon dioxide in the coconut shells to improve the mechanical property of the concrete. Meanwhile, calcium and ammonia gas react to generate calcium nitride, so that the corrosion resistance and the mechanical property of the concrete are further enhanced.

Rigid polyurethanes and composites are made from a reaction mixture comprising an aromatic polyisocyanate and a polyol mixture. The polyol mixture has an average hydroxyl equivalent of 125 to 275 and an average hydroxyl functionality of 2.5 to 4 hydroxyl groups per molecule. 5% to 33% by weight of the polyol mixture is triisopropanolamine. Rigid polyurethanes made from this reaction mixture exhibit excellent dimensional stability, even when cured at or near room temperature.

The present application relates to the technical field of shotcrete, and specifically provides a mine-used shotcrete based on coal gangue and a preparation method thereof. Wherein, the shotcrete includes component A and component B in a weight ratio of 100: (3-9); wherein component A includes the following components in parts by weight: 100-140 parts of cement, 135-150 parts of coal gangue, 50-70 parts of water, 15-20 parts of admixture, 1-5 parts of calcium formate, 4-5 parts of water reducer, and 1-2 parts of air entraining agent; component B includes the following components in parts by weight: 4-10 parts of polyaluminium sulfate, 1-9 parts of triisopropanolamine, 1-4 parts of aluminium sulfate 18hydrate, 1-4 parts of ethylene glycol, 2-5 parts of nano-aluminium hydroxide, and 3-5 parts of triisopropanolamine octanoate. The shotcrete provided in the present application still has better mechanical properties while using coal gangue as aggregate.

The present invention relates to the grinding aid used in the cement industry, in the clinker grinding phase of cement production and in the preparation of cementitious systems. In particular, the present invention relates to the grinding aid and synthesis method consisting of the Triisopropanol amine monopropanoate composition obtained as a result of the esterification reaction of Triisopropanol amine with propanoic acid.

A process of cleaning a reactor includes providing an alcohol-containing material to the reactor; and providing a metathesis catalyst to the reactor. The reactor contains a high molecular weight polymer gel and an organoaluminum material. The alcohol-containing material is not an alkyl tartrate and may be selected from triisopropanolamine, 4-tert-butylcatechol, isopropanol, and phenol formaldehyde resins.

The application provides a two-dosage-form copper etching liquid and a preparation method thereof, and belongs to the technical field of copper etching liquids, and comprises the following steps: mixing deionized water, ethylene glycol monobutyl ether and a hydrogen peroxide aqueous solution to obtain an A agent; mixing and reacting deionized water, a glucose acid aqueous solution, aminotri (methylenephosphonic acid), lactic acid, triisopropanolamine, gamma-glycidyl ether oxypropyl trimethoxysilane and aluminum lactate to obtain an aluminum-containing hybrid precursor; adding a first phosphoric acid aqueous solution, methanesulfonic acid and lactic acid into the aluminum-containing hybrid precursor, and then adding triisopropanolamine, a second phosphoric acid aqueous solution, 5-amino tetrazole and deionized water, and performing aging and filtration to obtain a B agent; and mixing the A agent, the B agent and deionized water to obtain the two-dosage-form copper etching liquid. The application can improve the storage stability, etching uniformity and copper surface flatness of the etching liquid.

The invention belongs to the technical field of building materials, and discloses a concrete anti-erosion special admixture suitable for extreme conditions and a preparation method thereof, the concrete anti-erosion special admixture suitable for extreme conditions is prepared by mixing the following components: a component A containing fly ash, water granulated slag and silicon powder; the component B comprises dihydrate gypsum and desulfurized gypsum; the component C comprises calcium hydroxide, inorganic sodium salt and sodium silicate; the component D is prepared from triethanolamine and triisopropanolamine; a component E containing active silica and metakaolin; the F component comprises nitrite and nitrate; the component G comprises lauryl sodium sulfate and triterpenoid saponin. The concrete anti-erosion special admixture is researched and developed on the basis of industrial solid waste, is stable in performance and has multiple functions, the performance of fresh concrete can be improved, and the strength, durability and temperature resistance of the concrete can be greatly improved.

The invention belongs to the technical field of preparation of isopropanolamine, and particularly relates to a process for gas-solid phase synthesis of isopropanolamine. The gas-solid phase isopropanolamine synthesis process comprises the following steps: (1) preparing a copper-doped silicoaluminophosphate carrier; (2) preparing a modified copper-doped silicoaluminophosphate catalyst; and (3) taking epoxypropane and ammonia gas as reaction gases, taking the modified copper-doped silicoaluminophosphate as a catalyst, and carrying out gas-solid phase reaction in the fixed bed reactor to prepare the isopropanolamine. According to the process for gas-solid phase synthesis of isopropanolamine, copper-doped silicoaluminophosphate is used as a catalyst carrier, cobaltosic oxide and ferric oxide are loaded as catalyst active components, and the process is applied to gas-solid phase reaction of epoxypropane and nitrogen to prepare isopropanolamine. Due to the addition of the catalyst, ring opening of epoxypropane is effectively activated while the activation energy of the nucleophilic reaction of ammonia gas is reduced, the content of monoisopropanolamine in a product is increased, and the content of diisopropanolamine and the content of triisopropanolamine are reduced.