6 results about "Titanium citrate" patented technology

The invention relates to the technical field of functional drinking water preparation, and discloses multi-element compound functional drinking water and a preparation method thereof. Aiming at the defects of serious element antagonism, high heavy metal residue risk, single function and the like in the prior art, the scheme innovatively adopts a five-stage gradient feeding process: an ion buffer system is established by preferential dissolution of calcium and magnesium, and stable retention of iron and zinc elements (the oxidation rate of Fe < 2 + > is less than or equal to 3%) is realized by shading treatment; elements easy to hydrolyze are fixed by a citric acid-titanoxyl complexing technology (the dissolution rate of titanium is greater than or equal to 99%), calcium and magnesium precipitation is inhibited by dynamic pH regulation (4.0-6.0), and nano-scale uniform dispersion (D50 is less than or equal to 100 nm) of 19 elements is realized by combining ultrasonic cavitation (45kHz) and 0.22 mu m terminal filtration. A gradient cooling (0.8 DEG C / min) and sodium citrate synergistic stabilization technology is originally created, so that the shelf life is prolonged.

This invention provides a high-conductivity, ultrathin carbon layer high-compact lithium iron phosphate processing method, relating to the field of lithium-ion battery material preparation technology. The method includes: firstly, mixing and carbonizing asphalt, phenolic resin, and sodium chloride using wet ball milling; using sodium chloride as a pore-forming template to prepare a first carbon source with a porous structure; then mixing iron phosphate, lithium source, phosphorus source, and titanium citrate as a second carbon source, and adjusting the pH to 8-10 to induce structural changes in titanium citrate to achieve lattice titanium doping; finally, adding the first carbon source to the mixture, followed by grinding, drying, and sintering under an inert atmosphere to obtain the lithium iron phosphate cathode material. This invention effectively solves the problem of low compaction density caused by excessively thick carbon layers through the synergistic effect of dual carbon sources and pH control technology, significantly improving the material's conductivity and ion diffusion rate while achieving high compaction density and excellent electrochemical performance.

This invention discloses a method for preparing low-carbon, salt-alkali resistant, ultra-high performance concrete material and its application, comprising the following steps: (1) Dispersing silica fume in a water-ethanol composite liquid containing a silane coupling agent, and then gradually adding anhydrous ethanol containing dissolved aluminum isopropoxide under stirring conditions, and continuing stirring after the addition is complete. After completion, solid-liquid separation is performed to obtain pretreated silica fume. (2) Adding titanium citrate solution to the pretreated silica fume, stirring evenly, drying, and then calcining to obtain modified silica fume. (3) Taking the following raw materials: silicate cement, the stabilized steel slag powder, the modified silica fume, fly ash, fine aggregate, copper-plated steel fiber, and water-reducing agent. Mixing the above raw materials with mixing water to obtain the ultra-high performance concrete material. This invention eliminates the problem of poor stability of steel slag while effectively improving the fluidity of concrete materials, making the ultra-high performance concrete material of this invention have better workability.

The invention provides a crop total-effect biostimulant based on a mineral substance-enzyme composite technology and a preparation method of the crop total-effect biostimulant. The composition is prepared from a phase A, a phase B, a phase C and a phase D, wherein the phase A is prepared from full-spectrum mineral chelated microelement liquid, macroelement nitrogen, phosphorus and potassium: 50 kg of potassium nitrate, 20 kg of ammonium dihydrogen phosphate, medium element: 30 kg of magnesium sulfate heptahydrate, full-spectrum microelement: 5.0 kg of iron: EDTA-Fe: 3.0 kg of manganese: EDTA-Mn: 2.5 kg of zinc: EDTA-Zn: 1.0 kg of EDTA-Cu: 2.0 kg of boric acid: 0.5 kg of molybdenum: ammonium molybdate: 0.1 kg of cobalt chloride: 0.05 kg of selenium: sodium selenite: 8.0 kg of silicon: potassium silicate: 0.8 kg of titanium: citric acid titanium: rare earth; the preparation method comprises the following steps: dissolving the components in 600L of pure water, and fully stirring until the components are completely dissolved to obtain a phase A; according to the crop total-effect biostimulant based on the mineral substance-enzyme composite technology and the preparation method of the crop total-effect biostimulant, the crop nutrition and physiological problems can be solved, long-term coexistence of high-concentration mineral substances and enzyme activity is ensured, the crop stress resistance is improved, physiological diseases are prevented and treated, and the crop yield and quality are improved.

The application belongs to the field of phosphate inorganic material preparation, and relates to a method for preparing titanium-vanadium doped iron phosphate, which comprises the following steps: adding titanium and / or vanadium compounds into an iron phosphate complex solution to prepare an iron phosphate complex solution containing titanium and / or vanadium doped metal compounds, and then adding water into the mixed solution and heating to obtain titanium and / or vanadium ion doped iron phosphate; the titanium compound is selected from metatitanic acid, nano titanium dioxide, titanyl sulfate, titanyl oxalate, titanium citrate, titanium lactate or titanium tartrate; the vanadium compound is vanadium trioxide, vanadium dioxide (IV), vanadium pentoxide, vanadium monoxide, vanadium sulfate or vanadium trichloride. In addition, alternative solutions of adding sequence and adding timing change are provided. The application has simple process, is suitable for large-scale industrial production, and improves the electrochemical performance of lithium iron phosphate material in a power battery.

The invention belongs to the field of preparation of phosphate inorganic materials, and relates to a method for preparing titanium-vanadium doped iron phosphate, which comprises the following steps: adding a titanium and / or vanadium compound into an iron phosphate complex solution to prepare an iron phosphate complex solution containing a titanium and / or vanadium doped metal compound; adding water into the mixed solution, heating to obtain titanium and / or vanadium ion doped iron phosphate, and the titanium compound is selected from metatitanic acid, nano titanium dioxide, titanyl sulfate, titanyl oxalate, titanium citrate, titanium lactate or titanium tartrate; and the vanadium compound is vanadium trioxide, vanadium dioxide (IV), vanadium pentoxide, vanadium monoxide, vanadyl sulfate or vanadium trichloride. In addition, the invention also provides an alternative scheme for changing the adding sequence and the adding opportunity. The method is simple in process and suitable for large-scale industrial production, and the electrochemical performance of the power battery of the lithium iron phosphate material is improved.