The present arrangement provides compounds (I) A.sub.aM.sub.m(YO4).sub.yZ.sub.z(I) that are obtained from precursors of the constituent elements by a method having steps that can include dispersion of the precursors in a liquid support having one or more ionic liquids made up of a cation and an anion the electric charges of which balance out to give a suspension of the precursors in the liquid. The suspension is heated to a temperature of 25 to 380 C. and the ionic liquid and the inorganic oxide of formula (I) are separated from the reaction of the precursors.

In some embodiments, the present invention provides amphiphilic nanosheets that comprise lamellar crystals with at least two regions: a first hydrophilic region, and a second hydrophobic region. In some embodiments, the amphiphilic nanosheets of the present invention also comprise a plurality of functional groups that are appended to the lamellar crystals. In some embodiments, the functional groups are hydrophobic functional groups that are appended to the second region of the lamellar crystals. In some embodiments, the lamellar crystals comprise -zirconium phosphates. Additional embodiments of the present invention pertain to methods of making the aforementioned amphiphilic nanosheets. Such methods generally comprise appending one or more functional groups to a stack of lamellar crystals; and exfoliating the stack of lamellar crystals for form the amphiphilic nanosheets.

In some embodiments, the present invention provides amphiphilic nanosheets that comprise lamellar crystals with at least two regions: a first hydrophilic region, and a second hydrophobic region. In some embodiments, the amphiphilic nanosheets of the present invention also comprise a plurality of functional groups that are appended to the lamellar crystals. In some embodiments, the functional groups are hydrophobic functional groups that are appended to the second region of the lamellar crystals. In some embodiments, the lamellar crystals comprise -zirconium phosphates. Additional embodiments of the present invention pertain to methods of making the aforementioned amphiphilic nanosheets. Such methods generally comprise appending one or more functional groups to a stack of lamellar crystals; and exfoliating the stack of lamellar crystals for form the amphiphilic nanosheets.

Various embodiments relate to separation of terbium(III,IV) oxide. In various embodiments, present invention provides a method of separating terbium(III,IV) oxide from a composition. The method can include contacting a composition including terbium(III,IV) oxide and one or more other trivalent rare earth oxides with a liquid including acetic acid to form a mixture. The contacting can be effective to dissolve at least some of the one or more other trivalent rare earth oxides into the liquid. The method can include separating undissolved terbium(III,IV) oxide from the mixture, to provide separated terbium(III,IV) oxide.

The invention relates to a method and system for phosphate recovering from a waste stream, such as an animal manure waste stream. The method comprises the steps of: providing a tank reactor; 5 providing acidogenic bacteria and/or acetogenic bacteria and the waste stream to the tank reactor, hydrolysing the waste stream, forming a reaction mixture; providing a gas flow to the reaction mixture for removing carbon dioxide from the reaction mixture; 10 providing the reaction mixture to an anaerobic sludge reactor, removing a compound comprising phosphate from the reaction mixture within the anaerobic sludge reactor, and removing gas from the reaction mixture within the anaerobic sludge reactor.

The invention relates to a method and system for phosphate recovering from a waste stream, such as an animal manure waste stream. The method comprises the steps of: providing a tank reactor; 5 providing acidogenic bacteria and/or acetogenic bacteria and the waste stream to the tank reactor, hydrolysing the waste stream, forming a reaction mixture; providing a gas flow to the reaction mixture for removing carbon dioxide from the reaction mixture; 10 providing the reaction mixture to an anaerobic sludge reactor, removing a compound comprising phosphate from the reaction mixture within the anaerobic sludge reactor, and removing gas from the reaction mixture within the anaerobic sludge reactor.

This application provides a positive electrode active material, a method for preparing a positive electrode active material, a positive electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The positive electrode active material includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material includes a compound LiNi.sub.bCo.sub.dMn.sub.eM.sub.fO.sub.2, and the second positive electrode active material includes a core, a first coating layer enveloping the core, and a second coating layer enveloping the first coating layer, where the core includes a compound Li.sub.1+xMn.sub.1yA.sub.yP.sub.1zR.sub.zO.sub.4, the first coating layer includes pyrophosphate M.sub.aP.sub.2O.sub.7 and phosphate X.sub.nPO.sub.4, and the second coating layer includes carbon.

In one aspect, a lithium manganese iron phosphate material includes a core, and a material of the core is represented by a general formula of Li.sub.xMg.sub.yMn.sub.zFe.sub.aAl.sub.bPO.sub.4, where x is ranged from 1.008 to 1.05, y is ranged from 0 to 0.006, z is ranged from 0.4 to 0.6, a is ranged from 0.388 to 0.6, and b is ranged from 0 to 0.012.

The invention relates to a pharmaceutically acceptable acid addition salt of: (i) S-oxprenolol; and (ii) phosphoric acid. Medical uses of the salt and compositions comprising the salt are also described.

A preparation method of a manganese iron phosphate precursor, a cathode sheet, and a lithium battery comprising: preparing the precursor based on a high-temperature calcination device. The high-temperature roasting furnace comprises a sprayer, a heater, and a particle size regulator. The method comprises: generating a manganese-containing solution from a manganese source and hydrochloric acid; generating an iron phosphate solution from an iron source, a phosphorus source, and hydrochloric acid; mixing the manganese-containing solution, iron phosphate solution, and dispersant to obtain a mixed solution; preheating the mixed solution; and transporting the mixed solution to the high-temperature roasting furnace; spraying and roasting the mixed solution in the high-temperature calcination furnace in the atmosphere of carrier gas, forming a powdered manganese iron phosphate precursor with at least two preset particle sizes; water washing and grinding, demagnetizing, and drying the manganese iron phosphate precursor to obtain the manganese iron phosphate precursor.