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42 results about "TRISODIUM NITRILOTRIACETATE" patented technology

Trisodium nitrilotriacetate is a derivative of acetic acid, N(CH2COOH)3. It is a complexing (sequestering) agent that forms stable complexes with Zn2+.

Aminocarboxylic acid breaker compositions for fracturing fluids

It has been discovered that aminocarboxylic acids are effective breakers for polymer-gelled aqueous fracturing fluids, particularly in the temperature range between about 120° F. (49° C.) and about 280° F. (138° C.). The aminocarboxylic acids are believed to act directly on the polymer and not to any great extent or not to as an effective extent on a crosslinking agent, if present. The polymer may be a polysaccharide, and the aminocarboxylic acid may be selected from the group including, but not necessarily limited to, tetrasodium ethylenediaminetetraacetic acid (Na4EDTA), tetrasodium propylenediaminetetraacetic acid (Na4PDTA), trisodium hydroxyethylenediaminetetraacetic acid (Na4HEDTA), trisodium nitrilotriacetic acid (Na3NTA), salts of these acids, and mixtures thereof.
Owner:SUPERIOR ENERGY SERVICES LLC

Cleaning agent composition and cleaning method for reverse osmosis membrane

ActiveCN103143260AGood dissolution and removal effectImprove solubilitySemi-permeable membranesReverse osmosisCleaning methods
The invention relates to a cleaning agent composition, comprising an A agent and a B agent. The A agent and the B agent are stored independently. The A agent comprises citric acid, hydrochloric acid and trisodium nitrilotriacetate; and the B agent contains an anionic surfactant and a dispersing agent, wherein the anionic surfactant is C8-C16 alkylbenzene sulfonate; and the dispersing agent is a (methyl)acrylic homopolymer and / or a (methyl)acrylic acid copolymer. The invention also relates to a method for cleaning a reverse osmosis membrane by using the above cleaning agent composition. A cleaning liquid prepared by the cleaning agent composition can clean the reverse osmosis membrane effectively, makes water yield of a reverse osmosis system restore basically, and can significantly reduce front-and-back pressure difference of the reverse osmosis membrane and reduce conductivity of produced water.
Owner:CHINA PETROLEUM & CHEM CORP +1

Preparation method of nano gold colorimetric sensor, and sensor prepared by method and application thereof

The invention discloses a preparation method of a nano gold colorimetric sensor, and a sensor prepared by the method and application thereof. The invention aims to overcome the defects of severe sample preservation conditions, high analysis method cost, long analysis time, high operation speciality and the like in most existing chromium ion detection processes (such as ICP (inductively coupled plasma), AAS (atomic absorption spectroscopy), AFS (atomic fluorescence spectroscopy) and the like). By using a gold salt as a gold nanoparticle source and trisodium nitrilotriacetate as a reducer and ligand, reaction is carried out under the condition of a boiling gold salt solution to obtain the stable water-soluble trisodium-nitrilotriacetate-modified nano gold colorimetric sensor. The sensor is convenient to carry, has the advantages of high sensitivity, high selectivity, stability and the like, can implement quick detection on Cr<6+>, has the advantages of high detection speed, high sensitivity and the like, and thus, has wide application prospects and higher market application value.
Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS

Efficient cleaning agent for automotive glass

The invention discloses an efficient cleaning agent for automotive glass. The agent is prepared from, by weight, 8-15 parts of potassium hydroxide, 15-25 parts of absolute ethyl alcohol, 5-18 parts of sodium hydroxide, 5-16 parts of potassium carbonate, 6-13 parts of sodium chloride, 3-13 parts of alkyl ether amine oxide, 2-5 parts of trisodium nitrilotriacetate monohydrate, 3-8 parts of dimeric surfactant, 2-10 parts of orange oil, 2.5-13.5 parts of propyl alcohol, 1.5-5.5 parts of potassium pyrophosphate, 3.5-5.8 parts of oxirane, 1.5-2.5 parts of glycol ether, 2-10 parts of water-soluble polymer, 1.8-5.6 parts of weak base, 2.6-6.5 parts of chelating agent, 1.6-2.5 parts of solubilizer, 1.8-2.8 parts of lubricant, 0.5-2.8 parts of essence and the balance water. The efficient cleaning agent for the automotive glass is great in cleaning effect and high in cleaning efficiency.
Owner:SUZHOU LOTTE CHEM TECH

Flocculating agent for underwater non-dispersing concrete

The invention belongs to the technical field of concrete additives, and discloses a flocculating agent for underwater non-dispersing concrete. The flocculating agent comprises, by weight, 10-30 partsof grafting modified konjaku flour, 3-8 parts of polyethylene glycol (2000-5000) bislaurate, 10-20 parts of dispersing agents, 1-3 parts of trisodium nitrilotriacetate, 3-8 parts of lithium polystyrene sulfonate and 20-50 parts of wollastonite. By the aid of the flocculating agent, blended concrete is rich in viscosity and has good flowability and can automatically level and compact after being poured into underwater space.
Owner:杭州中齐新材料科技有限公司

High-performance printing ink detergent and preparing method thereof

The invention discloses high-performance printing ink detergent and a preparing method thereof. The high-performance printing ink detergent is prepared from, by weight, 45-55 parts of kerosene, 4-8 parts of diethylene glycol ether, 3-5 parts of ammonium cocomonoglyceride sulfate, 5-6 parts of dibutyl phthalate, 10-14 parts of trisodium citrate, 14-18 parts of sodium lauroyl sarcosine, 2-4 parts of trisodium nitrilotriacetate, 1-2 parts of sodium tripolyphosphate, 3-5 parts of cetearyl glucoside, 2-3 parts of dodecyl hydroxypropyl phosphate glycine betaine, 0.2-0.6 part of triethanolamine, 0.5-0.9 part of naphthenate imidazoline borate, 0.6-1 part of n-butyl alcohol, 4-6 parts of nanometer 4A zeolite molecular sieves, 3-5 parts of soapnut saponin, 3-4 parts of urea, 2-3 parts of secondary alkyl sodium sulfonate and 85-95 parts of deionized water. The high-performance printing ink detergent is simple in formula, easy to manufacture, good in cleaning effect, safe, nontoxic and high in stability.
Owner:BEIJING INSTITUTE OF GRAPHIC COMMUNICATION

Antifogging agent for automotive glass

The invention provides an antifogging agent for automotive glass. The antifogging agent is prepared from the following components in parts by weight: 20-22 parts of deionized water, 18-20 parts of trisodium nitrilotriacetate, 1-3 parts of coconut diethanolamide, 2-3 parts of ethylene glycol, 4-6 parts of maleic anhydride, 12-15 parts of glycerol, 5-8 parts of betaine, 5-6 parts of apple essence, 1-2 parts of eucomis comosa floral perfume, 1-2 parts of olive oil, 2-4 parts of water-soluble silicone oil, 10-13 parts of citric acid and 1-3 parts of sodium chloride. The antifogging agent for the automotive glass has the advantages of rapidly penetrating, dissolving the fog film on the glass, enabling the glass to be clear and bright, not leaving trace, not influencing the sight line, and the like. The traceless detergent for the automotive glass is scientific in biological formula, is capable of rapidly cleaning and rapidly volatilizing, and does not leave trace. The antifogging agent overcomes that defects that most of the traditional glass cleaning agents are liquid, and easily overflow to the parts such as automotive paint after being sprayed onto the glass, so that inconvenience iscaused, and the like.
Owner:姜巧云

High-efficiency automobile glass cleaning liquid

The invention discloses a high-efficiency automobile glass cleaning liquid composed of the following raw materials in parts by weight: 0.5-3 parts of sodium dodecyl sulfate, 1-3 parts of nitrilotriacetic acid trisodium salt, 1-3 parts of sodium chloride, 1-4 parts of ethanol, 1-4 parts of ethylenediamine tetraacetic acid disodium salt, 1-5 parts of an antioxidant, 1-2 parts of an antifreezing liquid, 0.5-2 parts of a defoaming agent, and 60-70 parts of deionized water. The automobile glass cleaning liquid can effectively remove settled dirt on the glass surface, has good cleaning effect, has anti-freezing performance, and has no corrosion on glass.
Owner:QINGDAO WENSHENG AUTOMOBILE COMPONENTS & PARTS

Oil sludge demulsifier and preparation method thereof

The invention discloses an oil sludge demulsifier and a preparation method thereof. The oil sludge demulsifier comprises the following components: trisodium nitrilotriacetate, ethylenediamine tetraacetic acid, an emulsifier, a penetrating agent, inorganic salt, diatomite, alkali and water. The oil sludge demulsifier comprises the following components in percentage by mass: 6.5%-12% of trisodium nitrilotriacetate, 10%-15% of ethylenediamine tetraacetic acid, 3.5%-8% of an emulsifier, 20%-40% of a penetrating agent, 1.5%-5% of inorganic salt, 5%-15% of diatomite, 0.5%-5% of alkali and the balance of water. The oil sludge demulsifier disclosed by the embodiment of the invention is simple in proportioning process, reasonable in proportioning components and convenient to prepare and operate. Moreover, the oil sludge demulsifier is used for oil sludge treatment, and the effective utilization rate of petroleum hydrocarbon is greatly increased, so that oil sludge recycling is improved, and technical reserves are provided for soil remediation in the future.
Owner:北京建工绿色能源环境科技有限责任公司

A kind of analysis and detection method and application of complexing agent trisodium nitrilotriacetate in water

The invention relates to the field of water quality detection, in particular to an analysis and determination method and application of trisodium nitrilotriacetate, a complexing agent in water. The invention utilizes metal-organic frameworks, separates interfering ions in water by dispersing solid-phase extraction technology, enriches trisodium nitrilotriacetate in water, uses eluent to realize simultaneous elution and derivatization, and combines high performance liquid chromatography to realize seawater and life. Determination of complexing agent trisodium nitrilotriacetate in sewage, industrial wastewater and other water bodies. The invention develops the analysis and detection method of the complexing agent in water, which not only saves the derivatization and elution steps of sample pretreatment, but also enables the elution and derivatization to be carried out simultaneously, reduces the pretreatment time, and can effectively improve the anti-matrix interference ability of the detector, reduce the The detection limit of complexing agent in water was obtained. Using the invention to detect factory sewage, the extraction effect and reproducibility are good, and the results are satisfactory, and the invention is suitable for water quality detection of high-concentration complexing agents.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Thickener

A thickener is prepared from 20-22 parts of poly(terephthalyl alcohol), 6-12 parts of brine, 3-6 parts of diethyl oxalate, 4-12 parts of tree powder, 35-38 parts of phosphate fertilizer, 5-10 parts of high-alumina cement, 30-35 parts of flyash, 23-32 parts of poly(terephthalyl alcohol), 100-200 parts of green manure, 15-21 parts of carbon powder, 12-16 parts of amyl alcohol, 5-8 parts of trisodium nitrilotriacetate, 3-12 parts of clove oil and 25-35 parts of cotton fiber. The thickener is good in quality, suitable for being widely applied to industrial production, reasonable in formula and high in yield.
Owner:齐红玉
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