摘要:
Procédé chimique de préparation de ferrates alcalins, et alcalino-terreux, stabilisés ou non, par réaction d'oxyde de fer ou de sels de fer en milieu solution concentrée d'hydroxyde de potassium, de sodium caustiques, avec du peroxyde d'hydrogène, du peroxyde de potassium ou de sodium, et des stabilisants tels que le silicium, l'aluminium. Les ferrates obtenus par ce procédé.
摘要:
The invention provides for a sorbent composition comprising Fe(IV), Fe(V), Fe(VI), and/or a mixture of thereof ("the ferrate compound"), wherein upon exposure to CO 2 and moisture, the sorbent composition absorbs CO 2 and co- generates O 2 , and materials, systems and methods of using this sorbent composition.
摘要:
The invention concerns ferrates of formula: M1 (3-a)xM2 (3-a)1-x[(Fe y, X 1-y)a,(Fe z, Y 1-z)1-a]O4 or M1 (3-a)bM3 (3-a)(1-b)/2[(Fe y, X 1-y)a, (Fe z, Y 1-z)1-a]O4-w(OH)2w wherein: 0
摘要:
Method for anaerobic removal of a sulphur compound from waste water containing said compound, comprising the steps of: 1) feeding the waste water to an anaerobic digestion system; 2) converting the sulphur compound in the digestion system to a sulphide; 3) circulating an effluent containing the sulphide from the digestion system in a by-pass channel, said channel comprising a stripper system for stripping the sulphide from the effluent; 4) removing the sulphide from the effluent by contacting with a transporting gas in the stripper system; and 5) converting the sulphide to sulpher; wherein 6) the sulphide is absorbed from the transporting gas in an absorber system by an absorbing liquid, which absorbing liquid is passed in a closed loop through the absorber system and a regenerator system, and comprises a regenerable redox liquor, which redox liquor has a pH-value in the range 4 to 7, preferably about 6.5.
摘要:
A corrosion resistant primer coating comprises one or more corrosion inhibiting additives; and one or more nonaqueous resins, and the method of making and using the primer coating. The corrosion inhibiting additive comprises metal ferrate(IV) compounds, metal ferrate(V) compounds, metal ferrate(VI) compounds, or a mixture thereof (collectively called the ferrate compound). The ferrate compound has a low solubility in water in the range of about 0.00 lppm to about 2000ppm at a temperature in the range of about 0 °C to 71 °C. A method of making the metal- 1 ferrate compound suitable for the corrosion resistant primer coating comprises steps of (a) dissolving a highly soluble metal- 1 salt in water, (b) dissolving and mixing an alkali metal ferrate compound and a metal-2 hydroxide in water, (c) adding the solution of step (b) to the solution of step (a) to form a preproduct, wherein the preproduct comprises the metal- 1 ferrate compound; (d) filtering and washing the preproduct with one or more solvents to obtain the metal- 1 ferrate compound; and (e) drying the metal ferrate compound in a low moisture environment to obtain the dried metal- 1 ferrate compound; wherein the metal- 1 ion and the metal-2 ion are the same or are different from each other.
摘要:
L'invention concerne un procédé de préparation de ferrâtes de métaux alcalins, caractérisé en ce qu'il comprend les étapes suivantes : (i) on prépare un mélange comprenant au moins un hypochlorite de métal alcalin ou alcalino-terreux, au moins un sel de fer, et au moins un hydroxyde d'un métal alcalin; (ii) on ajoute une matière inerte sous forme de particules solides dans le mélange sous i); (iii) on laisse réagir les composés sous ii) sous agitation; (iv) on refroidit le mélange réactionnel obtenu sous iii) afin de maintenir sa température entre 50 et 90° C; (v) on récupère par tamisage les grains de ferrâtes de métal alcalin formés.
摘要:
Process for preparing ferrate (VI) granules continuously in a fluidized-bed reactor, comprising the continuous injection of an aqueous solution or dispersion of at least one salt or oxide of Fe(II) and/or Fe(III) into the reactor, the continuous injection of alkali and/or alkaline-earth metal hypohalite and alkali and/or alkaline-earth metal hydroxide, in the form of one or more aqueous solutions or dispersions, into the reactor, the control of the flow rate, pressure and temperature of the fluidization gas so as to evaporate the water introduced by the aqueous solutions and/or dispersions, and the removal of ferrate (VI) granules from the reactor.
摘要:
Novel devices for synthesizing ferrate and uses thereof are described. One aspect of the invention relates to devices and systems for synthesizing ferrate at a site proximal to the site of use.
摘要:
The invention relates to a method for the solid synthesis of ferrates of alkaline or alkaline earth metals, characterised in that it consists of reacting the following: an iron salt, a hydroxide of the alkaline or alkaline earth metals, gaseous chlorine. The invention also relates to the ferrates obtained according to the inventive method.
摘要:
A sodium-ion battery includes a cathode comprising sodium; and an anode composition comprising a material having the formula: A a B b C c D d O, where A is an alkali metal, alkaline earth metal, or a combination thereof, where B is titanium, C is vanadium, D is one or more transition metal element other than titanium or vanadium, a + b + c + d ≤1, a ≥ 0, b + c > 0, b ≥ 0, c ≥ 0, d > 0, and where the material comprises a ilmenite structure, triclinic VFeO 4 structure, cubic Ca 5 Co 4 (VO 4 ) 6 structure, dichromate structure, orthorhombic ∀-CoV 3 O 8 structure, brannerite structure, thortveitite structure, orthorhombic ∃-CrPO 4 structure, or the pseudo rutile structure.
摘要翻译:钠离子电池包括含有钠的阴极; 以及包含具有下式的材料的阳极组合物:AaBbCcDdO,其中A是碱金属,碱土金属或其组合,其中B是钛,C是钒,D是除了钛之外的一种或多种过渡金属元素 钒,a + b + c +d≤1,a≥0,b + c> 0,b≥0,c≥0,d> 0,其中材料包括钛铁矿结构,三斜晶VFeO4结构,立方Ca5Co4 VO4)6结构,重铬酸盐结构,斜方晶∀-CoV3O8结构,分子结构,堇青石结构,斜方晶∃-CrPO4结构或假金红石结构。