30results about How to "Raise the sodium content" patented technology

The invention discloses a prussian blue material and a preparation method thereof. The preparation method specifically includes the following steps: mixing sodium ferrocyanide with deionized water toobtain a solution I; mixing divalent manganese salt and deionized water to obtain a solution II; mixing sodium salt and deionized water to obtain a solution III; then simultaneously adding the solution I and the solution II into the solution III, and obtaining the prussian blue based material after co-precipitation. The prussian blue based material disclosed by the invention is applied into anodesof sodium-ion batteries, thereby greatly enlarging the capacity of sodium-ion batteries and remarkably improving the cycling stability.

The invention relates to a combustion method and device for preventing combustion coking and contamination of high-sodium coal. An outlet of a fluidized bed is connected with an inlet of a cyclone separator, one outlet of the cyclone separator is connected with one inlet of a coal mill through a heat exchanger and a dust remover, the other outlet of the cyclone separator is connected with one inlet of a coke preprocessing device, an outlet of the coal mill is connected with the other inlet of the coke preprocessing device through a three-grade pyrolysis bed, an outlet of the coke preprocessing device is connected with an inlet of a turbulent burner on the fluidized bed, and a forced draught fan is respectively connected with a primary air inlet in the bottom of the fluidized bed and a secondary air inlet in the middle of the fluidized bed. According to the combustion method and device, a common pyrolysis device is replaced by the three-stage fluidized bed, pyrolysis gas sodium-removal purification devices are connected behind the three stages of the three-grade pyrolysis bed respectively, the problem that alkali metal sodium elements are transformed between forms in the pyrolysis process and can not be effectively removed can be effectively solved, the problem that coke can not be easily and effectively combusted in a common pulverized coal furnace can be well solved, and energy can be effectively used.

The invention belongs to the technical field of sodium-ion battery materials, and specifically discloses a positive electrode material for sodium phase rich sodium-ion batteries which is a composite material of sodium phase rich titanium-manganese-sodium phosphate and carbon; and the chemical formula of the sodium phase rich titanium-manganese-sodium phosphate is Na3+4xMnTi1-x(PO4)3, wherein x isgreater than 0 and smaller than or equal to 0.3. The invention also discloses preparation of the composite material and application thereof in the sodium-ion batteries. According to the composite material, the sodium phase rich titanium-manganese-sodium phosphate is creatively adopted, and the content of sodium in the material is improved through an appropriate proportion of titanium defect. Redundant sodium content in the character is beneficial for maintaining the stability of the structure in the process that sodium ions are taken out, and then the long cycling stability of the material ispromoted. Moreover, the sodium phase rich titanium-manganese-sodium phosphate is cooperative with carbon, so that the electrical properties, such as capacity and cycle performance, of the obtained composite material can be promoted obviously. Moreover, the system of Na-Mn-Ti-P-O is rich in resources and low in cost, and the preparation method is simple in operation and wide in commercial application prospects.

The invention discloses a method for preparing Prussian blue positive electrode material and a sodium ion battery. The method comprises the following steps of (1) preparing a precursor solution with concentration being (0.01-0.02)mol/L; (2) performing ultrasonic cleaning on a substrate; and (3) atomizing the cleaned substrate by the precursor solution, and performing deposition to prepare the positive electrode material. According to the method, the thickness of a thin film is adjusted by adjusting the atomizing time, the prepared thin film positive electrode can be directly used for assemblyof the sodium ion battery without the step of pasting, and the process is simple; the prepared thin film positive electrode does not contain other impurity, is more excellent in uniformity and more complete in crystallinity, the water content and the vacancy content are reduced, the sodium content of the material is improved, and favorable cycle stability and high specific capacity are shown whenthe thin film positive electrode is used as a positive electrode of the sodium ion battery.

The invention provides a fertilizer with a high organic content for saline-alkali soil. The fertilizer comprises the following components in proportion: 35-42 parts of organic fertilizer, 25-30 parts of peat, 5-8 parts of vermiculite, 4-6 parts of potassium feldspar, 7-11 parts of fulvic acid, 4-7 parts of humic acid, 3-6 parts of compound fertilizer, 0.4-0.8 part of a water-retaining agent, 2-3 part of succinic acid, 1-2 parts of silica gel and 0.5-0.9 part of microelement. The invention further provides the application of the fertilizer in planting of winged euonymus. The fertilizer disclosed by the invention has the beneficial effects that the soda content of soil can be reduced to 0.11-0.15mg/100g, the pH value of soil can be reduced to 7.5-7.6, the salt content of soil can be reduced to 0.2-0.4, and the organic content of soil can be improved to 9.98-1.12g/kg. When the fertilizer is applied to planting of winged euonymus in saline-alkali soil, the transplanting survival rate of winged euonymus is high.

This invention provides a redox fuel cell comprising an anode and a cathode separated by an ion selective polymer electrolyte membrane; means for supplying a fuel to the anode region of the cell; means for supplying an oxidant to the cathode region of the cell; means for providing an electrical circuit between the anode and the cathode; a non-volatile catholyte solution flowing fluid communication with the cathode, the catholyte solution comprising a polyoxometallate redox couple being at least partially reduced at the cathode in operation of the cell, and at least partially re-generated by reaction with the oxidant after such reduction at the cathode, the catholyte solution comprising at least one counterion for the polyoxometallate redox couple wherein the at least one counterion comprises one or more divalent ions.

The invention discloses a preparation method and application of a nitrogen-doped carbon-coated sodium-rich sodium cobalt ferricyanide material, and belongs to the field of sodium ion battery electrode materials. The preparation method comprises the following steps: S1, dissolving cobalt chloride and polyvinylpyrrolidone in deionized water to obtain a solution a; dissolving potassium ferricyanide in deionized water to obtain a solution b; mixing the solution a and the solution b, and stirring to obtain a mixed solution; s2, aging the mixed solution obtained in the step S1 at room temperature for 48-72 hours, and drying to obtain solid powder; s3, pre-sintering the solid obtained in the step S2, carrying out heat treatment, and cooling to room temperature to obtain precursor powder; and S4, roasting the precursor powder obtained in the step S3 and disodium hydrogen phosphate under protective gas, and cooling to room temperature to obtain the catalyst. According to the invention, the sodium-rich Na2CoFe (CN) 6-NC material with a cubic structure is prepared, and the sodium-rich Na2CoFe (CN) 6-NC material has excellent cycle performance and relatively high specific capacity.

The present invention deals with a process for catalytic cracking of hydrocarbons comprising vacuum gas oil, hydrotreated vacuum gas oil, unconventional light crude oil, preferably unconventional light crude oil type shale/tight oil and its blends with conventional vacuum gas oil, in order to generate products of major commercial value in the field of fuels, getting improved gasoline and coke yield, as well as the procedure for the preparation of a catalyst with essential physical properties of density and particle size to uphold it in a fluidized bed under the operation conditions in the catalyst evaluation unit at micro level, wherein the catalyst particles achieve a catalytic performance similar to fluidized microspheres in a reactor, without appreciable generation of fine particles.