PROCEDURE FOR THE PRODUCTION OF ANIONI CLAY/TONE

[Technical field] 0001 : The anionic clay mg-Al of the present invention. 0002 : The anionic clay, and anionic water molecules are present between them, the specific combination of metal hydroxide, positively charged layer having a crystal structure. The anionic clay hydrotarcite naturally exist for example, carbonate ions, predominate anionic exists. The water ions [...] (meixnerite), there being a predominant anionic, anionic clay. 0003 : In like clay hydrotarcite, brucite like the main layer, and anionic water molecules, more specifically carbonate ions are distributed and arranged alternately in the intermediate layer is composed of octahedra. The intermediate layer is an anion, e.g. NO₃^-, OH, CI^-, Br^-, I^-, SO₄^2-, Si0₃^z-, CrO₄^2-, BO₃^2-, MnO₄^-, HGaO₃, HVO₄^2-, C1O₄^-, BO₃^2-, pillar anion (pillaring anion), e.g. V₁₀ O₂₈^6- and Mo₇ O₂₄^6-, monocarboxylic acid ion, e.g. acetic acid ion, ion [...] acid, such as oxalic acid ion, and alkyl sulfonic acid ion, for example, may include a nonlauric lill methansulfonate ions. 0004 : The anionic clay material and so called described in this specification, the term is used should various attention. The layered composite hydroxide and like hydrotarcite manufacturers used interchangeably and abuts. Herein, the anionic clay material, and our call, and the term substance like hydrotarcite in layered double hydroxide. In this document the anionic clay scrapings, conventional 3R₁ anionic clay having a stack. These clay, bookshelf regularly arranged in the form of a layer of exeerts form. This and other types of anionic clay of the more detailed description, remarkable Bookin and Drits, "and a clay mineral clay", first winding 41, Number 5 first, and 558-564 551-557 page in page, a biocomputing publication. [Background art] 0005 : Manufacturing of the anionic clay, described in many prior art literature. 2 of anionic clay chemical of principal general remarks are published, anionic clay composition used in the synthesis method is summarized: F. These remarkable Cavani "hydrotarcite type anionic clay: manufacturing, the nature and use" Catalysis Today, Elsevier Science Publishers B (year 1991) 11 and the second winding. V. Amsterdam And other significant "trend, and micro-porous solid synthetic anionic clay: pillar in chemistry" (1992 year), second winding 2, first Number 108, editor J P BESSE: m. I. OCCELLI, H. E. ROBSON, VAN NOSTRAND REINHOLD, new york. 0006 : These general remarks in the book, features of the anionic clay, calcined at 500 °C the mild, MgO is disturbed and formation of a product. The spinel MgO is disturbed so that the product of (as a result of the violent burning) and the anionic clay and can be distinguished. Herein, the manner of MgO is disturbed and solid hereinafter mg-Al-like material. These known solid mg-Al contains a memory effect, and thereby the firing of a substance such as exposure to the water, causing the re-formation of the anionic clay structure. 0007 : 2 of anionic clay review article of manufacture of the type described a The method most general, 2 and 3 of a polyvalent metal salt soluble polyvalent metal salt of the coprecipitated sol. (Besse in this method is called the base-and method), and following the same for increasing the size of any water or aging heat treatment. 2 of the first method is a method of oxide salt, a divalent metal oxide under atmospheric pressure at 2, 3 of a divalent metal salt solubility and reacted, then under the atmospheric pressure, the aging is performed. In this method, a combination of divalent metal salt sol. 3 and are described only for the use of ZnO and CuO. 0008 : Regarding a study on anionic clay, further the following literatures are referred to: Helv. Chim. Acta, first winding 25, and page 106-137 555-569 page (1942 year) J. Am. Ceram. Soc. , First winding 42, Number 3, page 121 (1959 year) first Chemistry Letters (Japan), page 843 (1973 year) Clays and Clav Minerals, first winding 23, pages 369 (year 1975) Clays and Clay Minerals, first winding 28, page 50 (year 1980) Clays and Clay Minerals, first winding 34, page 507 (year 1996) Materials Chemistry and Physics, first winding 14, pages 569 (year 1986). 0009 : Furthermore, the use of the anionic clay and a method for their manufacture, very much of the patent literature. 0010 : In the manufacture of the anionic clay material is not expensive, some of the disclosure of the patent literature. These materials, including [...] and magnesium oxide. 0011 : The disclosure of the international patent application Number 9941198 anionic clay first relating to the manufacture of magnesium and aluminum compound and a compound of the type of source 2. One of the aluminum source [...] 1 or their thermally treated. 0012 : The disclosure of the international patent application Number 9941196 first, another one of magnesium and magnesium acetate 1 [...] from a source, for balancing the charge of the anion of the acid ion production as an anionic clay is described. 0013 : Disclosed in international patent application Number 9941195 first, anionic clay [...] mg mg-Al and source for producing from a continuous process is described. 0014 : The disclosure of the international patent application Number 9941197 first, anionic clay and unreacted [...] mg-Al or the heat treatment including the anionic clay-containing composition is disclosed. The magnesium source described in this document is not applied to the pulverizer. 0015 : Several patents in the name of Alcoa, United States patent Number 5,728,364, United States patent Number 5,728,365, United States patent Number 5,728,366, United States patent Number 5,730,951, and United States patent Number 5,578,286 the United States patent Number 5,776,424, anionic clay of magnesium oxide and hydrotalcite that transition alumina in a batch system from a synthetic, non-aqueous heat under the conditions of synthesis and is described. In the comparison example 1-3 shown in these patents the, and used as a source of [...] , preventing the formation of anionic clay. 0016 : Many of the applications of the anionic clay. These, catalyst, adsorbent, drilling mud, catalyst support and carrier, including the use of diluent and placing the medical field, but is not limited to these. In particular, Van Broekhoven (United States patent Number 4,956,581 and second first United States patent Number 4,952,382) the SO_x in reducing chemical used is described. [Disclosure of invention] Means for solving the problems: 0017 : The present invention, A) or its thermally treated [...] shaped and magnesium source, the source of the magnesium, before use, and/or present in the mixture of precursor when pulverized, water-containing precursor mixture, B) 30 °-100 ° C of the precursor mixture by aging at a temperature range, and a process for obtaining a clay products, and C) b) optionally a molded product of a process Contg., 3R₁-type crystalline anionic clay. 0018 : The term "pulverized" as herein, reduction of the size of the particles is defined as any method. The reduction of the size of the particles thereof, simultaneously generating reaction area and/or to make the heating of the particles. The device is used for grinding, a ball mill, a high shear mixer, colloidal mixer, and capable of introducing the slurry Ultrasonograph electric transducer. Low shear mixing, i.e., basically, components in order to maintain the suspension state of agitation, and the "ground" is not considered. 0019 : B) before the aging process of magnesium source by crushing, Alcoa discussed in the patent and in contrast to the comparative example, low temperature, and ambient pressure in a simple method, which is not expensive to manufacture from anionic clay [...]. Furthermore, the grinding process, disclosed in international patent application Number 9941197 first disclosed in the comparison of the non-thermal process, and anionic clay to a high conversion rate faster than reaction. Without being bound by theory, manner, magnesium source prior to crushing of the aging wrighting reaction surface is prepared and considerared. In MgO, brucite layer is produced, for example, by contact of the air. Before the reaction of MgO powder, fresh MgO surface is created. 0020 : Step b) the mixture of precursor in an aqueous suspension, in the range of 30 °-100 ° C room, while agitating or stirring at atmospheric pressure without aging. The method, in operating a standard industrial equipment. 0021 : The present invention [...] (e.g. Gibbsitic, [...] , or [...]) or the heat treatment involves the use of a form. The reaction, reactor is recovered from a slurry can be simply obtained by drying the anionic clay forming directly. There is no need of cleaning or filtering, mg/Al ratio in a wide range of reaction products. 0022 : The X-ray diffraction powder (PXRD), the product obtained by this method, manufactured by the standard method 3R₁-similar types of anionic clay. The physical and chemical properties of the product produced by the method is also conventional and is similar to that of the anionic clay. The whole process of the present invention is very flexible, economical, environmentally friendly. Furthermore, the method according to the present invention, various kinds of anionic clay. For example, as an interlayer anionic or carbonate ions having hydroxyl ion anionic clay can be manufactured. 0023 : The method of the present invention 3R₁-type relating to the method for manufacturing the anionic clay, in this method, the heat treating [...] or magnesium source and of a shape which is fed to the reactor, in the aqueous suspension is aging, anionic clay. The magnesium source, and insoluble in the reaction medium, present in the mixture of precursor before use or when the ground. The heat treating and [...] mg source or a type of reaction, anionic clay forming directly. This reaction, a temperature in the range of 30 °-100 ° C, at a pressure between the environmental and aging occurs. 0024 : In the method according to the present invention, (for example, a reactor by supplying a soluble salt) in the reaction medium to be supplied or, during the adsorption (e.g. carbonate ions) from the atmosphere, the carbonate ion, hydroxyl ion, or their mixtures with other anionic, necessary for balancing the anionic charges as taken in the interlayer region. 0025 : The anionic clay manufactured by the present invention, a method is disclosed for idioms previously manufactured by, conventional 3R₁ anionic clay and related to normal, and characteristic of known properties (for example, chemical analysis, powder X-ray diffraction pattern, FTIR, thermal decomposition characteristic, surface area, pore volume, and pore size distribution). 0026 : The heating and, anionic clay is generally a solid solution of mg-Al, at a temperature higher than a spinel is generated. When used as a catalyst, an adsorbent (e.g. catalytic cracking reaction SO_x adsorbent) or when used as a catalyst supporting body, usually the anionic clay, manufacturing and/or use (for example, in an FCC unit) between the heated, therefore in the form of a solid solution of mg-Al. [The best mode for carrying out the invention] 0027 : Therefore, the present invention, in accordance with the present invention an anionic clay is produced at a temperature of 300 °-1200 ° C is thermally treated, including solid mg-Al and/or spinel is also directed to a method of generating. The solid formed in such a manner that the water again the anionic clay can be produced. The anionic clay produced in this way, the general formula [And 1] In accordance with a layered structure, in this case the m/n=1-10 m and n, preferably at a value so as to become 1-6, b has a value in the range of the 0-10, generally 2-6 value, having a value of about 4 and shapeoften. The X C0₃^2-, OH^- anionic clay or other layers of any ordinary anion. M/n the, value of 2-4, in more detail, preferably has a value of 3. 0028 : The method according to the present invention for cleaning or filtering and generates no need, without wasting diphosgene, this method is particularly environmentally friendly, industrial furnace environmental restrictions imposed on suitable bears. For making a molded object, the product, in order to form a fine spray drying or directly molded or extruded. 0029 : [...] In the present invention, the crystallinity [...][...] (ATH), for example by Reynolds Aluminium Company RH-20 (trademark) (R) is supplied or JM Huber Micral contg. Gibbsitic grade. Further BOC (Bauxite Ore Concentrate), and the appropriate [...][...][...]. The most inexpensive alumina source BOC. The range of the hydrate alumina 3 1-150μm, more preferably smaller than 20 µm preferably has a particle size. In another embodiment of the present invention 1, in the form of thermally treating [...] is used. Heat treating and [...][...] combination of also can be used. It is baked to the [...][...] (Gibbsitic), higher than 100° C, preferably 100 °-15 minutes to 24 hours at a temperature of 800° C, by the heat treatment can be easily obtained. In any case, for obtaining a firing [...] firing temperature and the firing time, manufactured by Bayer process of Gibbsitic, generally 30-50m²/g and as compared to the surface area, increasing measure must be sufficient. Also the instantaneous firing of alumina, generally very special alumina is considered and, in the context of the present invention in the, form of thermally treating [...] attention and should be considered. The instantaneous firing of alumina, and United States patent Number 4,051,072 first described in United States patent Number 3,222,129 in special industrial facility in a very short period of 1000° C -800 ° temp., [...] obtained by thermally treating. The combination can also be used for various treatment [...] thermally. 0030 : Preferably, the heat treating or [...] the, added in the form of a slurry in a reactor. In particular, a deflocculate alumina source is not required to be used (gliocyte Gibbsitic is not available), as a result, in order to change the pH of the mixture of organic acids mineral acid need not be added. In the method according to our invention, [...] or its thermally treated aluminum source other than the shape of, for example, aluminum oxide and hydroxide (e.g. sol., gel, pseudo-boehmite, crystallite boehmite), aluminum salts, for example, aluminum nitrate, aluminum chloride, and sodium aluminate [...] is added to an aqueous suspension. The other of the aluminum source, a water-soluble or insoluble in even, [...] and/or processed into a shape in which the heat can be added, or separately in the aqueous suspension of solid, liquid or suspension is added as a solution. 0031 : magnesium source Mg can be used including the source MgO, mg (OH)₂, garnierite caltrop water and stones, magnesium carbonate, magnesium carbonate hydroxyacid, magnesium carbonate, and dolomite contg. sepiorite. Furthermore, the combination of mg source may also be used. The appropriate MgO, and Martin Marietta Nedmag (trademark) can be obtained for example from (trademark). 0032 : The magnesium source, solid reactor, or preferably as a slurry. The magnesium source, before it is fed to the reactor, or its thermally treated [...] and together form. 0033 : pulverizing The magnesium source aging process b) prior to grinding. The magnesium source, or present in the mixture of precursor before use in either of, ground. Preferably, when present in the mixture of precursor. In this case, a magnesium source (heat-treated) and both [...] wet grinding. If a magnesium source, and optionally also the aluminum source, when pulverized prior to use, to obtain dry grinding is performed. If both of the source of pulverized before if used, together or individually, they can be pulverized. 0034 : In another embodiment 1, and an optional magnesium source (heat-treated) as the first individual pulverized [...] , next, pulverized (wet) together. 0035 : When using the wet grinder, or its thermally treated [...] form including both magnesium and the slurry, in a room, for example, a ball mill, a bead mill, a sand mill, a colloid mill, a high shear mixer, or by using an ultrasonic wave, 1-30 min. wet grinding. 0036 : After pulverization obtained, the average size of the particles of magnesium source, preferably, about 0. 5-5 microns, more preferably about 1-3 microns. 0037 : The temperature between the temperature of the ground, or at a temperature higher than the ambient temperature. The higher temperature, for example, from natural or produced in the grinding process is caused by an external heat source. Preferably a temperature of between 20°-90° C, more preferably at a temperature in the range of 30°-50 ° C. 0038 : conditions In the reactor, or its thermally treated [...] shaped, or slurry before use and ground to magnesium is present in the aqueous slurry containing sources, in order to obtain the anionic clay aging in aqueous suspension. The reaction, the reaction mixture in order to secure a uniform mixture of a stirrer or baffle is provided. The reaction can be carried out in a range of 30 °-100 ° C temperature and atmospheric pressure without stirring or i The reactor is arbitrary, for example, microwave, infrared source, and a heating jacket (or with electric heating liquid) heated by the lamp. Because of the simple, this method, which is carried out in a continuous type especially suitable. 0039 : In a reactor of the above aqueous suspension, together or separately, the starting materials are added to the reactor or a slurry of magnesium source or its reverse [...] is added to the slurry to date, slurry obtd. obtained by adding to the reactor. For example, in a raised temperature [...] by treating the slurry, the slurry by adding a magnesium source itself or in solution or a slurry of magnesium source whether [...] or added to the reactor. The solid content of the slurry is lower than 40% by weight, preferably, more preferably between % 1-20 pts.wt.. 0040 : No ion (e.g. sodium, chloride ion, sulfate ion, phosphate ion) is not present in the product, it is not necessary to filtering or cleaning products. 0041 : If desired, if, for example, for the purpose of adjusting the pH, and an organic or inorganic acid or base is fed to the reactor, or magnesium source (heat-treated) or either [...] , before they are fed to the reactor. The pH value of can have an arbitrary 1-14. Preferably the higher pH 7. The pH, an acid or basic type of 1 or more than 1 is used in the process. Preferable examples of the base, as quat.ammonium, for drying and why, does not remain in the anionic clay cation is toxic. 0042 : The formed product, optionally the temperature of 300 °-1200 ° C, preferably to a temperature of 300 °-800 ° C, and most preferably at a temperature of 300 °-600 ° C is fired. This firing is 15 minutes to 24 hours, preferably 1-12 time, and most preferably between 2-6 time. By this processing, including solid mg-Al and/or spinel is formed. 0043 : The solid formed in this way, the water, anionic clay is again generated. This water is, between 1-24 time, thermal or thermal conditions in water, preferably in a range of the temperature of the water and solid soln. 65°-85 ° C by contact. Preferably, the slurry is agitated, 10-50 pts.wt. over a range of % solid content. Between the re-hydration, anionic, e.g. carbonate, bicarbonate ions, nitrate ions, chloride ion, sulfate ion, ion bisulfates, boric acid ion, phosphate ion, and pillar anionic, e.g. HV0₄^-, V₂ 0₇^4-, HV₂ 0₁₂^4-, V₃ O₉^3-, V₁₀ O₂₈^6-, Mo₇ O₂₄^6-, PW₁₂ O₄₀^3-, B (OH)₄^-, B₄ O₅ (OH)₄^2-, [B₃ O₃ (OH)₄]^-, [B₃ O₃ (OH)₅]^2-, HBO₄^2-, HGaO₃^2-, CrO₄^2-, and Keggin ion, ion formic, acetic acid ion, and their mixture is present. 0044 : Therefore, the present invention, which is manufactured by the method according to the present invention is an anionic clay, heat-treated at a temperature of 300 °-1200 ° C, containing a solid mg-Al and/or spinel is obtained, optionally to be subsequently re-hydration anionic clay is also directed toward a method of directly 0045 : If and when desired, according to the present invention is manufactured by the method the anionic clay, can be subjected to ion exchange. And ion exchange, layers of the charge of the anion and other anionic substd. balance. Examples of suitable anions, carbonate, bicarbonate ions, nitrate ions, chloride ion, sulfate ion, ion bisulfates, polyvanadic acid ion, ion phosphotungstic acid, boric acid ion, phosphate ion, and pillar anionic, e.g. HV0₄^-, V₂ 0₇^4-, HV₂ 0₁₂^4-, V₃ O₉^3-, V₁₀ O₂₈^6-, Mo₇ O₂₄^6-, PW₁₂ O₄₀^3-, B (OH)₄^-, B₄ O₅ (OH)₄^2-, [B₃ O₃ (OH)₄]^-, [B₃ O₃ (OH)₅]^2-, HBO₄^2-, HGaO₃^2-, CrO₄^2-, and Keggin ion, ion formic, acetic acid ion, a mixture thereof. The ion exchange, anionic clay slurry produced in the drying is performed before or a 0046 : The method of the present invention, having a wide range of mg/Al ratio wide flexibility in the product. Mg/Al ratio is 0. 1-10, pref. 1-6, more preferably can be varied within a range of 2-4, particularly preferably in the vicinity of 3. 0047 : For some applications, additive, rare-earth metal (La and Ce, for example), Si, P, B, Group VI, Group VIII, alkaline earth metals (Ca and Ba, for example) and/or transition metal (for example, Mn, Fe, Ti, Zr, cu, Ni, Zn, Mo, W, V, Sn) containing, both of metal and nonmetal compd. compd., where it is desirable to exist. The additive, manufactured in accordance with the present invention the anionic clay can be chromatosis on, or additives, or magnesium source [...] or its thermally treated either can be added, whether these are added to the reactor or reactors are separately added. The metal compound and an appropriate source of non-metallic compound, an oxide, hydroxide, carbonate, bicarbonate hydroxyacid, halide, or optional salt, such as chloride, nitrate, sulfate, and phosphate. Such a metal (additive) is, in the presence of the external surface of the sheet, the anionic clay or clay crystal. For example, as an oxide or hydroxide of them, also another phase can be formed. 0048 : If excessive [...] or its shape is thermally treated, if used, and unreacted anionic clay (meaning: which is not reactive with anionic clay) or its [...] of thermally treating composition containing also a form is produced. Unreacted [...] (heat-treated) the, or another of these compsn. boehmite alumina by itself in the form of, for example, is obtained. 0049 : On the other hand, anionic clay and magnesium in order to obtain a composition containing compound, excess magnesium source, usually used in the form of oxide or hydroxide. The anionic clay, unreacted [...] (or its thermally treated type) and a composition containing a magnesium compound, for example anionic clay, boehmite, and blue composition including site, only by controlling the working conditions. 0050 : In the composition, anionic clay, magnesium compound and/or unreacted [...] (or its thermally treated type) is, another phase, for example, physical mixing of these components are present as a mixture rather tightly. 0051 : These compositions, catalyst for conversion of hydrocarbons, as for example a matrix or additive FCC or HPC, so a very suitable. These are, in gasoline and diesel fraction from the FCC for sulfur removal, in FCC SO_x and No_x removed, and especially appropriate metal as a trap. 0052 : The anionic clay and generates an anionic clay-containing composition, optionally to the molding, the molded body is formed. If the anionic clay and unreacted [...] is generated if the composition including, unreacted aluminum compound (i.e., [...] or their thermally treated type) is capable of acting as a binder, forming a porous and also an object. 0053 : The proper molding method, spray drying, repelletizing, extrusion molding (and optionally to be macerated combined), and beads, or, to be used in the field of catalyst and adsorbent, or any other method of forming idioms contg. combinations thereof. The water used for the molding of the quantity of liquid present in the slurry, should be adapted to perform a particular method. In a slurry, so that the result is suitable for forming, in a slurry, which is used to partially remove liquid, and/or by adding additional or another liquid, and/or to change the pH of the mixture of precursor can be recommended. 0054 : For the reduction of sulfur in the diesel and gasoline, and, in order to use a use HDN and HDS, SO_x and NO_x for reduction of the additive can be used suitably as an FCC catalyst or catalyst additive compsn. compsn., anionic clay or various catalyst component and the latter contg. molded by manufacturing the object can be obtained. 0055 : Such a component or components of the precursor of, for example, alumina, alumina sol, silica, silica-alumina, [...] , metal, natural and synthetic clay, ion-exchanged zeolite Y and stabilized, zeolite and ZSM type. 0056 : These components are, used for molding the mixture of precursor can be added. Alternatively, the object can be molded of an anionic clay containing pulverized, the pulverized product and a slurry containing the catalyst component is then mixed to 1 or more. A slurry is molded to the next desired. Brief description of the drawings: 0057 : The [fig. 1] fig. 1, the particle size of the starting material, the reaction product of an influence given to the apparent bulk density (ABD) as a function of the aging time. 0058 : Embodiment As a measure of the amount of the generated anionic clay, properties of the coupling is used in the following embodiment, wear index (A. I. , Attrition index) and apparent bulk density (ABD, apparent bulk density), i.e., the volume of the mass of the material, by a constant amount. Both the parameter indicating the strength of the particles. Abrasion index, between time 3, through the hole of the disc flows particles Holedcap at high speed, the amount of fine-grained ([30 nm) measured by the measuring device. A. I. In both of the measurement of 600 °C ABD and after firing, is performed. 0059 : Particle W.Then strength increases, A. I. On the other hand is reduced, to increase the probably ABD. 0060 : The X-ray diffraction (XRD) the formation of anionic clay is confirmed by measurement. In cu-K-alpha radiation, mg-Al of the anionic clay 11. 69 °, 23. 46 °, and 34. 2 θ of 95° in shows a peak. The [...] used, 80. 2° and 20. 2 θ shows a peak in a 3°. [Embodiment 1] 0061 : 4. 69 kg of MgO (Martin Marietta Zolitho (trademark) made of), 4. 4 kg ATH (Mill (trademark)) of, and 50. 9 kg of water is prepared 100L of the reactor. The solid content of the slurry 12. 5% by weight. The slurry is processed by respectively different method: The crushing of the bead mill in pilot plant-, 2. 5 microns average particle radius (d₅₀) is obtained, The crushing of the bead mill in pilot plant-, 2. 9 microns average particle radius (d₅₀) is obtained, The crushing of the bead mill in pilot plant-, 3. 5 microns average particle radius (d₅₀) is obtained, or -Is not crushed. 4 30 °C one obtained in the slurry, between different time, 20L of aging in the container. Next, the slurry is spray dried condition, of standard spray drying. 0062 : The obtained product of ABD is measured. The result is an aging time of fig. 1 and is represented as a function of particle size. If the reaction does not occur even if anything, then as a result, if the anionic clay is not generated, and only a physical mixture of MgO and ATH is spray drying, spray drying the particles is collapsed, ABD is probably not measured. 0063 : The fig. 1, by reducing the average particle radius, ABD value higher than, the result is shorter than a larger quantity of the anionic clay obtained in an aging time. [Embodiment 2] 0064 : The slurry is MgO and ATH, 7. 04 kg of MgO, 6. 7 kg of ATH, and 76. 4 kg of water in the reactor of 100L manufactured by mixing. The solid content of the slurry 12. 5% by weight. The slurry of bead mill in pilot plant, 1. The flow velocity in the crushing is 0 kg/min. This is 2. 8 microns average particle radius (d₅₀) brings. The temperature and pH11 80 °C. 8 6 at the time of after aging, cerium nitrate solution is added to the slurry (dry solid base of 11% based on weight CeO) which is the last to spray drying the slurry. 0065 : The spray drying of a product ABD 0. 60g/ml. The XRD pattern, 11. 5 °, 23. 5 °, and 35. 2 θ of 0° in the vicinity of the anionic clay generated by the presence of the diffraction lines. [Embodiment 3] 0066 : The slurry, a 9 micron d₅₀ MgO having, 7. 04 kg, of 6 microns d₅₀ ATH having, 6. 7 kg, and 76. 4 kg of water in the reactor of 100L manufactured by mixing. The solid content of the slurry, 12. 5% by weight. 0067 : Beads of the slurry 0 mill. pilot plant. 5 kg/min flow velocity in the ground. The particles obtained d₅₀ is 2. 2 microns. 35 °C and 11. 8 at a pH of 6 hours after aging, cerium nitrate solution is added to the slurry (dry solid base of 11% based on weight CeO). The spray drying the slurry. 0068 : The spray drying of a product ABD 0. 75g/ml. The XRD pattern, 11. 5 °, 23. 5 °, and 35. 2 θ of 0° in the vicinity of the anionic clay generated by the presence of the diffraction lines. 0069 : comparative example A The slurry is, increasingconversion MgO (Martin Marietta (trademark) made) while, 1. 11 kg, 1. (Alcoa (trademark) made) [...] 04 kg of and 12. To produce a slurry containing 85 kg of deionized water. The crushing process is not performed. The slurry of solid content of 15% by weight. 24 30 °C aging on time in the slurry, and finally a spray drying. 0070 : A. I. The 30. 9 has a value of a; ABD is 0. 41g/ml. 30. 9 A o I. The value, meaning that the breakdown of particles. [Embodiment 4] 0071 : [...] (5. 91 kg, Alcoa (trademark) made) in a slurry of 30 kg of the deionized water. 6. 46 kg (Martin Marietta made) of MgO is added under violent agitation. The slurry of solid content of 23% by weight. In the slurry SL Dynomill, 0. 1 Ti of 8 mm by using beads. 25 kg/min in the ground. The temperature of the slurry of crushed 39 °C immediately. The pulverizer, the distribution of the average particle diameter: D (0. 1) =0. 80 µm D (0. 5) =3. 27 µm D (0. 9) =10. 22 µm 0072 : The solid content of up to 15% by weight of the slurry is diluted. The slurry is 24 hours aging. Between aging, 34°-42 ° C rises to the temperature. After aging, the slurry is seen as a mass of soft, weak under the same pressure, changes in the liquid. Spray drying the obtained material. The X-ray diffraction, the main reflector 2 θ 11° in close, the presence of the substance in the anionic clay. 0073 : The spray drying of the product A 3. I. A value. The ABD 0. 71g/ml. If these values are compared in a comparison example when the value of A, the embodiment 4 improved bonding properties of the particles of the anionic clay and the amount of increase. [Embodiment 5] 0074 : While the sample is received in MgO of low shear mixing of the water in the slurry. Gibbsitic is, the molar ratio of 2 mg/Al in the slurry. 3 in a quantity, which is added to the slurry. This slurry by high-shear mixing pulverized to 30 minutes. The pH of the slurry ohashori 10. 4 85 °C mixture obtained in the aging time. The formation of anionic clay PXRD. Comparative example B The embodiment 5 is repeated, the slurry containing the MgO/Gibbsitic together is not mixed in a high shear. The PXRD, allowing a large amount of unreacted Gibbsitic cannot exist. [Embodiment 6] 0075 : While receiving the MgO (45. 44g) is 106g of the slurry in the deionized water. The slurry is 30. 0% by weight, includes a solid. The high-shear mixing the slurry in a Waring blender. Gibbsitic (38. 74g) is low in 86g of the deionized water, a slurry with mixed non-shearing. This slurry is 20. The solid content of 0% by weight. 0076 : And MgO Gibbsitic contg. 193g of deionized water and slurry are together, the slurry obtained (the slurry of solid content: 15% by weight) is, in a Waring blender of 30 minutes, a high-shear mixing. The pH of the final slurry, 10. ; If the temperature is 70 °C 66. 4 85 °C aging on time in this slurry, dried at 110 °C. The PXRD, remains in a small amount of unreacted state including the formation of anionic clay Gibbsitic. [Embodiment 7] 0077 : Embodiment 6 which is repeated, the MgO slurry containing a non-shear mixing (non-shear mixed). The pH of the slurry containing Gibbsitic MgO and 10. ; 82 °C 34 in the temperature. The PXRD, in comparison with the embodiment 6, the presence of a large amount of unreacted Gibbsitic considerably.