10 results about "Didodecyl phosphate" patented technology

The application discloses a low-foam acid zinc plating additive and a preparation process thereof, and belongs to the technical field of electroplating additives. The additive comprises a low-foam softener and a water-based brightener. The low-foam softener comprises the following raw materials in percentage by mass: polyethylene imine 0.8-1.2%, monododecyl phosphate potassium 0.03-0.06%, water-soluble polyether amine 0.2-0.6%, and the balance is water. The water-based brightener comprises the following raw materials: 5-hydroxymethyl furfural 0.6-1.2%, L-cysteine salt 0.2-0.4%, 4-amino-2(1H) pyrimidinone 0.1-0.15%, sodium salicylate 0.05-0.1%, citric acid 1-1.5%, alpha-ketoglutaric acid 0.3-0.5%, isoascorbic acid 0.2-0.4%, and the balance is water. The application optimizes the components in the additive, prepares a water-based formula, and the components are uniformly dispersed, the foam amount is low, and the plating layer quality is good.

The application discloses polylactic acid-polycaprolactone degradable woven bag non-woven fabric and a preparation method thereof. The non-woven fabric is prepared from the following components: polylactic acid, polycaprolactone, sodium lauryl sulfate, dopamine-modified nano-titanium dioxide composite, a compound system of citric acid and epoxy soybean oil, a combination of sodium carboxymethyl cellulose and calcium dodecyl phosphate, and a combination of montmorillonite and D-isoascorbic acid palmitate. The above system forms a multi-level degradation regulation network structure with surface interface regulation, intermediate layer microstructure regulation and nano functional particle synergistic catalysis, and realizes controllable regulation of the degradation rate of polylactic acid-polycaprolactone blended materials. A preparation method is used to prepare the non-woven fabric. The application has the following beneficial effects: the problems of the prior art, such as difficult accurate regulation of the degradation rate of polylactic acid-polycaprolactone blended materials, poor environmental adaptability and limited application scenarios, are solved.

The invention relates to the technical field of preparation methods of mesoporous iron phosphate, in particular to a preparation method of mesoporous iron phosphate, which comprises the following steps: (1) preparation of a solution A: weighing 0.03-0.06 mol of dodecyl phosphate, dissolving the dodecyl phosphate in deionized water with a first preset volume, adding 8-12 mL of absolute ethyl alcohol, stirring at the temperature of 50-60 DEG C for 1-2 hours, and filtering to obtain the solution A; after fully mixing, stirring at a first preset temperature for a first preset time to obtain a solution A; (2) preparation of a solution B: respectively weighing FeCl3. 6H2O and H3PO4 according to the molar ratio of Fe < 3 + > to PO4 < 3-> being 1: 1, and dissolving the FeCl3. 6H2O and the H3PO4 in deionized water with a second preset volume to obtain the solution B; (3) preparing a solution C: mixing the solution A and the solution B, and adjusting the pH of the mixed solution to be neutral to obtain the solution C; (4) preparing a precursor, namely stirring the solution C at a second preset temperature for a second preset time, and drying in a drying oven to obtain the precursor; and (5) calcining: sintering the precursor to obtain mesoporous FePO4.

The invention discloses an oil-soluble surfactant mediated modified nanofiltration membrane and an application thereof in lithium and magnesium separation. The preparation method comprises the following steps: firstly soaking a polymer substrate with an ethanol solution, then soaking the polymer substrate with a piperazine aqueous solution, finally soaking the polymer substrate with a triformyl chloride n-hexane solution containing an oil-soluble surfactant, and drying the polymer substrate to obtain the oil-soluble surfactant mediated modified nanofiltration membrane. The modified nanofiltration membrane prepared by the invention can be used for separating lithium and magnesium in salt lake brine, and the separation factors of the nanofiltration membrane modified by two surfactants, namely dodecyl phosphate and di (2-ethylhexyl) phosphate, are as follows: SLi < + > / Mg < 2 + > = 78.17 and 161.65 respectively. The modified nanofiltration membrane provided by the invention has the characteristics of high separation factor, simple synthesis method operation, pollution resistance, strong stability and the like, provides an effective medium environment for subsequent preparation of battery grade Li2CO3, and has very strong practical application value.

The present application relates to the technical field of high polymer material preparation, and particularly relates to a spinning oil composition, a spinning oil and a preparation method and application thereof; the composition comprises, in terms of weight parts, polyoxyethylene fatty acid ester: 20-30 parts; hydrogenated castor oil polyoxyethylene ether: 8-10 parts; alkyl silicone oil: 25-35 parts; polyether silicone oil: 8-15 parts; alkyl polyoxyethylene ether phosphate ester salt: 5-8 parts; alkyl thiosuccinate: 7-10 parts; dodecyl phosphate ester salt: 7-10 parts; ethylene oxide-propylene oxide block copolymer: 3-6 parts; polyoxyethylene quaternary ammonium salt: 5-8 parts; penetrating agent: 2-4 parts. The spinning oil can significantly improve the bundling property, antistatic property and emulsifying property of polyethylene fiber spinning, thereby effectively solving a series of problems of polyethylene fiber in the spinning process, including poor bundling property, high static voltage and easy winding, etc.

The invention relates to a high-weather-resistance electrical conduit and a preparation process thereof, and belongs to the technical field of electrical conduits. The electrical conduit comprises a base tube and a weather-proof protective coating compounded on the surface of the steel base tube, the weather-proof protective coating is obtained by coating the outer surface of the base tube with a weather-proof protective coating and curing the weather-proof protective coating, and the formula of the weather-proof protective coating is as follows: by weight, the content of the weather-proof protective coating is 1-5% of that of the base tube. The coating is prepared from 55-75 parts of epoxy resin, 5-10 parts of composite filler, 1-2 parts of a flatting agent, 1-2 parts of a defoaming agent, 10-20 parts of a curing agent and 40-60 parts of a solvent. The composite filler is of a graphite phase carbon nitride-hydroxyapatite composite structure of which the surface is modified by dodecyl phosphate. The electrical conduit prepared by the invention has good mechanical property, high weather resistance and high corrosion resistance.

The invention relates to an efficient activating and intensifying collecting flotation method for silicate type zinc oxide ore, and belongs to the technical field of mineral processing. Aiming at the low-grade silicate type zinc oxide ore, a composite activating agent composed of inorganic ammonium salt and sodium ethylene diamine tetracetate is adopted for implementing efficient activating treatment on the surface of the silicate type zinc oxide ore, so that the surface activity of the target ore is improved; octyl hydroximic acid, potassium dodecyl phosphate and amyl xanthate are selected to form a multi-component collecting agent, and the activated silicate type zinc oxide minerals are selectively and intensively collected, so that efficient flotation of the silicate type zinc oxide minerals is achieved. According to the method, the zinc oxide minerals can be efficiently activated and selectively collected, high-concentration sodium sulfide is not needed for vulcanization, the flotation effect is good, and the problem that foam is difficult to eliminate through a vulcanization-amine flotation method of the refractory silicate type zinc oxide minerals can be solved.

This invention discloses a method for preparing a modified lithium-rich layered cathode material, comprising the following steps: mixing a dodecyl phosphate compound of a specific carbon chain length with deionized water to obtain a dodecyl phosphate compound solution; adding the lithium-rich layered cathode material to the dodecyl phosphate compound solution, dispersing and stirring to form a suspension; spray-drying the suspension to obtain a composite powder; and heat-treating the composite powder and cooling it to room temperature to obtain the modified lithium-rich layered cathode material. The dodecyl phosphate compound of the specific carbon chain length is an ester compound formed by a straight-chain alkyl group with 12 carbon atoms and a phosphate group. This invention also provides the modified lithium-rich layered cathode material and a lithium-ion battery based on the modified lithium-rich layered cathode material, solving the problem of capacity and voltage decay caused by surface oxygen release and structural phase transition during high-voltage cycling of the lithium-rich layered cathode material.

The invention relates to the technical field of rare metals, and provides a preparation method of high-purity metal hafnium, after hafnium-containing waste is dissolved, the high-purity metal hafnium is obtained through extraction, washing, reverse extraction, precipitation and calcination, and an organic phase reagent adopted for extraction comprises the following components in parts by weight: 20-30 parts of tributyl phosphate, 6-8 parts of a synergist and 200-300 parts of a diluent. The synergist comprises one or two of dodecyl phosphate, hexadecyl phosphate and octadecyl phosphate. According to the technical scheme, the problem of low purity of metal hafnium in related technologies is solved.