39 results about "EDTMP" patented technology

The invention relates to a cleaning agent, in particular to a special cleaning agent for a three-way catalyst of a vehicle. The cleaning agent is a mixed solution of one or combination of 3 to 10 percent of hydrochloric acid or sulfamic acid with inorganic acid concentration of 31 percent, 2 to 5 percent of surfactant sodium dodecyl sulfate and 1 to 5 percent of sodium triphosphate, one or combination of 1.5 to 5 percent of corrosion inhibitor isoquinoline quaternary ammonium salt and 1.5 to 5 percent of EDTMPS, 0.5 to 3 percent of chelating agent cetyl trimethyl ammonium bromide, and 50 to 60 percent of water. The cleaning agent can directly clean the three-way catalyst under any condition, especially under the condition that the vehicle engine cannot be started, so as to achieve the aim of effectively and quickly removing the gum deposited carbide of the three-way catalyst of the vehicle, and has the characteristics of high product cost performance, environment friendliness, multiple functions and the like, is convenient in use, and can reactivate the vehicle three-way catalyst and prolong the service life of the vehicle three-way catalyst.

The invention relates to a rare-earth multielement plant nutrient solution and preparing method, using light rare earth, multiple nitrates, urea, phosphoric acid as well as complexing agents such as EDTA, EDTMP, vitamin C, tartaric acid, citric acid and so on, to prepare it through the procedures of raw materials preparation, chelating medium body preparation, chain chelation reactions, compound preparation, etc. It has high content of light rare-earth and plant nutrient element, reasonable mixing proportion, good stability, etc, applied to spray multiple crops.

The invention discloses a chromate-free passivation agent for an aluminum alloy. Per liter of chromate-free passivation agent is composed of, by mass, 10 mg to 300 mg of amino silane or / and epoxy silane, 1 mg-100 mg of dispersible nano particles, 10 mg-500 mg of a zirconium compound or / and a titanium compound, 1 mg-150 mg of metal ions, 10 mg-150 mg of fluoride, 1 mg-20 mg of a complexing agent, 75 mg-100 mg of organic phosphoric acid and the balance water; and the organic phosphoric acid is at least two of HEDP, HPMA, EDTMP, DTPMP, ATMP and PBTCA. According to the passivation agent, multiple kinds of organic phosphoric acid, multiple kinds of metal ions and multiple kinds of nano particles are chelated to the different degrees; on one aspect, the thickness and the compactness of a passivation film layer can be strengthened; and meanwhile, the passivation film layer (inorganic film layer) formed after chelation can show a color to a certain degree on the surface of the aluminum alloy.

The invention discloses an aerated brick with an anti-freezing function. The aerated brick is characterized by being prepared from the following raw materials in parts by weight: 20-25 parts of lead-zinc tailing powder, 17-19 parts of household garbage, 11-14 parts of lime, 0.2-0.5 part of aluminum powder, 5-7 parts of phosphate cement, 10-13 parts of natural yellow sand, 2-4 parts of potassium sulfate, 1-4 parts of EDTMP.Na5, 2-5 parts of ammonium bicarbonate, 0.3-0.6 part of tara gum, 0.2-0.4 part of tamarind gum, 1-3 parts of soda ash, 3-5 parts of chestnut shells, 0.5-0.7 part of gelatin, 0.1-0.3 part of dried tangerine peel, 0.3-0.5 part of moxa leaves, 4-6 parts of auxiliaries and a proper volume of water. The prepared aerated brick disclosed by the invention has good anti-freezing property; through adding proper auxiliaries and foam stabilizer, the toughness of the aerated brick is improved, and the permeation resistance is improved; moreover, the processing process is simple and easy to implement, the production cost can be reduced, the cyclic economy effect of changing the waste into the valuable is realized, and the competitiveness of the product is improved.

An electrochemical corrosion technology for anode aluminum foils consists of two DC electrochemical corrosion processes. The first electrochemical corrosion process is carried out in mixed solution sulfuric acid, chlorine ion and aluminum ion; the second electrochemical corrosion process is carried out by adding into organic phosphonic acid or phosphate, ATMP, HEDP and EDTMP. It has homogenous appearance, large capacity ration, excellent mechanical strength and water-proof performance.

The invention relates to a flocculant for sewage treatment, which consists of the following components: polymaleic acid, acryloyloxyethyltrimethylammonium chloride, hydrolyzed polymaleic anhydride, sodium ethylenediamine tetramethylene phosphonate, Potassium chlorate, trichloroisocyanuric acid, triclosan, p-hydroxybenzoic acid, sodium percarbonate, zeolite powder, titanium dioxide powder, ammonium sulfate, zinc sulfate powder, magnesium sulfate, zinc sulfate, ammonium chloride, benzyl chloride, diphosphate Potassium Hydrogen, Tert-Butyl Cellosolve, Glyceryl Stearate, Coconut Oil, Capric Aldehyde, Epichlorohydrin, Butyl Acetate, Ethylene Oxide, Triethanolamine, Polymethyl Hydrogen Siloxane, Polyethylene Glycol Octyl phenyl ether, polydiallyldimethylammonium chloride, starch phosphate, deionized water. The product of the present invention has a fast reaction speed and no toxic and harmful gases are produced during the process; the product after the reaction is stable and will not be decomposed into toxic substances; it is highly efficient and non-toxic, safe for the human body before and after the reaction, and has no corrosion on objects; it is aimed at sewage treatment efficient.

The invention discloses an environment-friendly universal rust remover. The environment-friendly universal rust remover is mainly prepared by mixing and dissolving the following raw materials including, by weight percent, 1%-10% of EDTMPS, 1%-10% of edetate disodium, 5%-15% of sodium dihydrogen phosphate, 5%-15% of zinc dihydrogen phosphate, 0.1%-0.5% of an enzyme preparation, 0.1%-1% of a conversion film medium, 0.05%-0.2% of a chelating agent, 0.01%-0.05% of a complexing agent and the balance deionized water. The environment-friendly universal rust remover has the advantages of improving thebinding force of paint, enhancing the corrosion resistance, and achieving the antirust effects of being quick in rust removal, free of pollution, healthy and environment-friendly.

This method for manufacturing a lead-free niobate-system ferroelectric thin film device includes: a lower electrode film formation step of forming a lower electrode film on a substrate; a ferroelectric thin film formation step of forming a niobate-system ferroelectric thin film on the lower electrode film; an etch mask pattern formation step of forming an etch mask in a desired pattern on the niobate-system ferroelectric thin film; and a ferroelectric thin film etching step of shaping the niobate-system ferroelectric thin film into a desired fine pattern by wet etching using an etchant comprising: a predetermined chelating agent including at least one selected from EDTMP, NTMP, CyDTA, HEDP, GBMP, DTPMP, and citric acid; an aqueous alkaline solution containing an aqueous ammonia solution; and an aqueous hydrogen peroxide solution.

The invention provides a neutral deoiling derusting cleaning agent which comprises polymeric compound, chelating agent, inorganic salt, surface active agent, sulfourea and water. Wherein the polymeric compound is polycarboxylic acid substance, which can be maleic anhydride, polyacrylic acid, sodium polyacrylate, the chelating agent is organo-phosphine acid or EDTA substance, the organo-phosphine acids can be ATMP, EDTMP, HEDP, the inorganic salt is Na2Co3, NaiHCo3, NaOH, the surface active agent is anionic surface active agent AS or LAS. The preparing process is also disclosed.

The invention discloses a method for measuring DDT in the water by molecular imprinting selection fluorescence quenching. The method comprises steps that firstly, the complex is formed through DDT inthe water sample and EDTMPS, secondly, the complex is then sequentially enriched and eluted, and lastly, the fluorescence technology is used for detection. The formed complex has the significant quenching effect on a fluorescent system, and the linear relationship between the fluorescence signal quenching degree and the concentration of DDT in the water is formed. The method is advantaged in thatthe method has on-site, fast, simple and sensitive characteristics, and problems that the existing technology can not work on site, the analysis duration is long, the analysis process is complicated,the conditions are harsh, the energy consumption is large, and especially secondary pollution occurs in the prior art are solved.

The invention provides a scale inhibitor composition, a scale inhibitor and a preparation method of the scale inhibitor. The scale inhibitor composition comprises aliphatic unsaturated acid anhydride,aliphatic unsaturated acid and a unsaturated sulfonic acid substance, wherein a molar ratio of the aliphatic unsaturated acid anhydride to the aliphatic unsaturated acid to the unsaturated sulfonic acid substance is 1:1:1 to 1:0.1:0.1. According to the invention, the scale inhibitor prepared from the scale inhibitor composition can effectively inhibit the formation of calcium carbonate, calcium sulfate, barium sulfate, silicate and other water scales, has good dispersity and certain zinc stability, greatly relieves the scaling phenomenon in an oil-gas development process, and saves the development cost; and the scale inhibitor provided by the invention does not contain phosphorus, can greatly reduce the emission of phosphorus, has good compatibility with HEDP, ATMP, EDTMP and other phosphorus scale inhibitors, and has the advantages of uncomplicated synthesis process and reliable and stable performance.

The invention discloses a processing technology of radix bupleuri traditional Chinese medicine decocotion pieces. The processing technology comprises the following steps: (1) selecting and picking fresh radix bupleuri; (2) soaking the radix bupleuri in an EDTMPS (Ethylenediamine Tetramethylphosphonate Sodium) water solution for 2 to 3 hours; (3) slicing the radix bupleuri, and drying; (4) adding the dried radix bupleuri pieces in rice vinegar accounting for 0.2 time of the dried radix bupleuri in parts by mass, then adding an ethanol solution accounting for 0.1 time in parts by mass, and braising until completely absorbing the solution; (5) continuously adding yellow rice wine accounting for 0.1 time in parts by mass, then adding haw juice, ferment stoste and carbonic acid accounting for 0.2 time of the total amount in parts by mass, and continuously braising until completely absorbing the solution; wherein a mass ratio of the haw juice to the ferment stoste to the carbonic acid is (0.04 to 0.06):(0.01 to 0.02):(0.03 to 0.05); (6) drying and sorting, and packaging, thus obtaining a finished product-radix bupleuri decoction pieces. According to the processing technology disclosed bythe invention, by adopting the haw juice, the ferment stoste and the carbonic acid as a reinforcement system, the content and the side effect rate of effective components of the radix bupleuri traditional Chinese medicine decocotion pieces can be increased.

The invention discloses a general scale inhibitor for a salt and sodium sulfate co-production technology in a salt-making industry. The general scale inhibitor comprises organic phosphorus and a high-molecular polymer, the high-molecular polymer comprises hydrolytic polymaleic anhydride with a molecular weight being ten million to twenty million, a terpolymer T15, and Antiprex.A, and the organic phosphorus comprises ATMP and EDTMP. By aiming at the technical problem of the salt-making scale inhibitor, the high-efficiency general scale inhibitor is provided for solving the fouling problem of heat exchange equipment of a salt and sodium sulfate co-production system, the product uses the efficient chelating capability of organic phosphorus and excellent dispersion capability of the high-molecular polymer, and can be simultaneously effected on a salt system and a nitre system.

The invention provides a production method of targeted treatment medicinal pectin and relates to the technical field of pectin extraction. The pectin product is mainly prepared by the following steps:boiling and filtering citrus pomace, soaking by using EDTMPS water bath, dividing filter residues into two parts, performing fermentation treatment by using composite enzyme a and composition enzymeb separately, and combining and extracting the pectin. The product increases the calcification degree of a composite formed by combining the pectin and calcium ions when the targeted medicine is prepared and enhances the treatment effect of the medicine.

The invention provides an alkaline low-phosphorous reverse osmosis membrane anti-scaling agent and a preparation method. The alkaline low-phosphorous reverse osmosis membrane anti-scaling agent comprises the following components in percentage by mass: 15-50% of EDTMPS, 10-40% of PAA with the molecular weight of 1800-2200, 5-20% of dimethyl fumarate, 2-8% of 0.5-2mg / ml graphene oxide aqueous dispersion, and 20-50% of a pH value adjusting agent. The alkaline low-phosphorous reverse osmosis membrane anti-scaling agent is simple in production process, free of waste emission, controllable in cost, appropriate in price, applicable to scale dispersion of various reverse osmosis membranes, capable of effectively achieving synergistic effects of physical adsorption and chemical adsorption on pollutants, and meanwhile is excellent in corrosion inhibition, sterilization and mold prevention.

The invention provides a method for producing a compound fertilizer by using phosphorite tailings, which comprises the following steps: grinding phosphorite tailings raw materials into powder, putting the powder into a reaction container, adding a buffering agent, adding industrial waste phosphoric acid until the pH value is less than or equal to 4.5, and stirring for 2-3 hours at 65-85 DEG C; carrying out solid-liquid separation to remove insoluble solids, and slowly evaporating and crystallizing the residual solution at 50-60 DEG C; and carrying out solid-liquid separation again, washing the solid material with water, and then drying the solid material to obtain the compound fertilizer product. Industrial waste phosphoric acid is used as an acidolysis raw material, so that the method is low in cost and environment-friendly; according to the invention, EDTMPS, DTPMPA or EDDHA is used as a buffering agent, a stable chelate is formed through a chelation reaction between the chelating agent and calcium and magnesium ions, and the metal chelate is generally of a flocculent structure and can flow in a solution, so that further reaction between acid and internal raw materials cannot be blocked, and the reaction speed and the final reaction degree are improved.

The invention relates to a method for preparing coal-based activated carbon with high adsorption capacity by using low temperature and low mesopore pore volume. The method comprise the following concrete steps that (1) coal-based carbonized materials are put into a EDTMPS solution with the mass percent being 10 to 40 percent to be soaked for 8 to 10h; (2) materials obtained in the step (1) are putinto a carbonization furnace to be activated for 40 to 60 minutes at the temperature of 400 to 500 DEG C; (3) the activated materials are discharged out of the furnace and are cooled to room temperature; the cooled materials are put into an auxiliary agent solution with the mass percent being 5 percent to be soaked for 30 to 40 minutes; (4) the auxiliary agent solution is discharged; the activated materials are flushed by water until the PH value is neutral; (5) the activated materials are dried at 150 to 200 DEG C to reach the required moisture; a mesopore developed activated carbon finishedproduct is obtained. The method has the advantages that the activation temperature is reduced to 400 to 500 DEG C from the original 900 DEG C; energy sources are saved; under the condition that the total pore volume of the activated carbon is not reduced, the mesopore pore volume proportion is increased to 20 to 40 percent from the original 10 percent.

The invention provides a preparation method of EDTMP-modified ferroferric oxide nanoparticles, and the preparation method comprises the following steps: mixing and dissolving FeCl3(subscript).6H2(subscript)O and FeCl2(subscript).4H2(subscript)O in a hydrochloric acid solution to obtain a mixed solution; mixing the mixed solution with an aqueous solution for reaction to obtain a reaction solution;and subjecting the reaction solution and an EDTMP solution to reaction to obtain the EDTMP-modified ferroferric oxide nanoparticles. The IO-EDTMP nanoparticles are synthesized by a modified coprecipitation method, so that the IO-EDTMP nanoparticles not only have good colloid stability and biocompatibility, but also have good T1 and T2 relaxation effects, and have potential application value in thefield of clinical MRI imaging diagnosis as a contrast agent. The invention also provides EDTMP-modified ferroferric oxide nanoparticles and application thereof.

The invention opened a method of boiler antiscale slow release agent and the employing method. The ingredient of the weight fraction was: EDTMP 2-5g, NaOH 80-120g, NaCO3 180-220, the method was: a. adding one portion of antiscale slow release agent due to the evaporating capacity per ton water, keep the water alkalinity, was 7-8 mgN / L, pH was 10-11.5; b. routinely pollution discharge while the boiler application. Its advantages include no need for factory building and equipment, saving the salt and treating water, no need for assay, low cost, save fuel, yield good ecnomic returns and social returens.