Provided are an oxovanadium phosphate catalyst, and a preparation method and an application therefor. The method includes: 1) mixing and reacting a vanadium source, a choline chloride-organic carboxylic acid eutectic solvent, and alcohol; 2) mixing the obtained reaction product with a phosphorus source, raising the temperature to a temperature higher than the melting point of the eutectic solvent, and continuing the reaction to obtain an oxovanadium phosphate precursor; and 3) calcining to obtain the oxovanadium phosphate catalyst. The alcohol is: benzyl alcohol or a mixture of C.sub.3-C.sub.8 monohydric alcohol and benzyl alcohol. The present method uses a green and inexpensive eutectic solvent to strengthen the preparation of oxovanadium phosphate catalyst, avoids the disadvantages of the prior art, and overcoming the problems of low yield and poor selectivity when used in a reaction to prepare maleic anhydride by catalytic n-butane selective oxidisation.

A negative thermal expansion material made of zirconium phosphate tungstate containing an Al atom, and having a thermal expansion coefficient of −2.0×10.sup.−6 to −3.3×10.sup.−6/K. According to the present invention, a negative thermal expansion material made of zirconium phosphate tungstate having various thermal expansion coefficients, and an industrially advantageous manufacturing method thereof can be provided.

The invention relates to devices, systems, and methods for conditioning a zirconium oxide sorbent module for use in dialysis after recharging. The devices, systems, and methods can provide for conditioning and recharging of zirconium oxide in a single system, or in separate systems.

The invention relates to a process for performing a aqueous synthesis of titanium phosphates (TiP) having solely —H2PO4 groups, which process is characterised by the following steps: providing titanium (IV) oxysulphate, TiOSO4, in an aqueous solution or in a powder and H2SO4, substantially without transition divalent metal ions, including cobalt (II) and copper (II), heating N of the thus formed aqueous solution to above 50° C., but below 85° C. for at least 30 minutes, providing a controlled amount of H3PO4 to said aqueous solution, to form an aqueous solution containing a molar ratio between TIO2 and P2Os being controlled to about 1:1, pot not above 1:1.5 and not below 1:0.7, stirring the thus formed aqueous solution for at least 3 hours to form precipitates of titanium Got phosphate, and allowing ageing of said solution, without stirring, acidic washing of the formed precipitate using HCl or other acids to obtain TiO(OH)(H2PO4)-H2O having solely —H2PO4 ion-exchange chemical groups and allowing said precipitates to dry to a powder product, substituting protons in the powder product TiO(OH)(H2PO4)-H2O to sodium cations by treatment of the latter with solutions of sodium carbonate and allowing the thus formed powder of Na—TiP1 to dry.

Provided is an ion-conductive solid electrolyte compound, as a crystalline oxide, including a stoichiometric formula of “A.sub.x(M.sub.2TO.sub.8).sub.y”. In the stoichiometric formula, A is a cation having an oxidation state of +1, M is a cation having an oxidation state of +4, +5, or +6, T is a cation having an oxidation state of +4, +5, or +6, and x and y are each independently a real number greater than 0, wherein x is equal to or less than 3y. The ion-conductive solid electrolyte compound has a high ionic conductivity and a low electronic conductivity.

Provided is a white pigment for cosmetics capable of giving a cosmetic having an excellent performance smoothly applicable onto the skin. A white pigment for cosmetics of the present invention includes a titanium phosphate powder, the titanium phosphate powder includes crystal particles of titanium phosphate, and the titanium phosphate powder has an average friction coefficient (MIU) of less than 1.45.

The present invention relates to a process for preparing an ammonium vanadium phosphate of formula (NH.sub.4)(VO.sub.2)(HPO.sub.4). It also relates to a process for preparing a vanadium orthophosphate VPO.sub.4.

Provided is a white pigment for cosmetics, and the white pigment has a higher function as a base pigment than that of titanium oxide. A white pigment for cosmetics of the present invention includes a titanium phosphate powder having a whiteness of 92.91 or more as determined in accordance with JIS Z 8715.

The invention relates to devices, systems, and methods for conditioning a zirconium oxide sorbent module for use in dialysis after recharging. The devices, systems, and methods can provide for conditioning and recharging of zirconium oxide in a single system, or in separate systems.

Provided is a white pigment for cosmetics, and the white pigment has a higher function as a base pigment than that of titanium oxide. A white pigment for cosmetics of the present invention includes a titanium phosphate powder having a whiteness of 92.91 or more as determined in accordance with JIS Z 8715.