WO2010026975A1 - 非晶質アルミニウムケイ酸塩の製造方法、及びその方法により得られた非晶質アルミニウムケイ酸塩、並びにそれを用いた吸着剤 - Google Patents
非晶質アルミニウムケイ酸塩の製造方法、及びその方法により得られた非晶質アルミニウムケイ酸塩、並びにそれを用いた吸着剤 Download PDFInfo
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- WO2010026975A1 WO2010026975A1 PCT/JP2009/065294 JP2009065294W WO2010026975A1 WO 2010026975 A1 WO2010026975 A1 WO 2010026975A1 JP 2009065294 W JP2009065294 W JP 2009065294W WO 2010026975 A1 WO2010026975 A1 WO 2010026975A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/28—Selection of materials for use as drying agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
- B01D2253/1085—Zeolites characterized by a silicon-aluminium ratio
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- the present invention has a high specific surface area, a high pore volume due to the fine structure resulting from its unique shape in the technical field of nanotechnology, which is expected to be put to practical use as an important basic technology supporting the next generation industry. It is related to substances that have excellent physicochemical properties, such as ion exchange capacity and adsorption capacity, and are expected to be applied as innovative functional materials.
- the present invention relates to a method for producing amorphous aluminum silicate having moisture-releasing properties, an amorphous aluminum silicate obtained by the method, and an adsorbent using the same.
- Nano-sized tubular aluminum silicate is produced, for example, as imogolite in nature, but this imogolite is present in the soil and is mainly produced in soil derived from volcanic ash. Natural imogolite, along with allophane, which is a related mineral, has an effect on nutrients and moisture in soil, supply to plants, and accumulation and residue of harmful pollutants.
- This tubular aluminum silicate is composed of silicon (Si), aluminum (Al), oxygen (O) and hydrogen (H) as main constituent elements, and is a hydrated silicic acid assembled with a number of Si—O—Al bonds.
- Aluminum with an outer diameter of 2.2 to 2.8 nm, an inner diameter of 0.5 to 1.2 nm, and a length of 10 nm to several ⁇ m. Naturally, volcanic ash, pumice, etc. It is a clay component distributed in the soil that uses the fall volcano ejecta as a base material.
- Protoimogolite is a precursor substance of imogolite, and when this precursor dispersed in an aqueous solution is heated at about 100 ° C., it becomes imogolite. Therefore, the precursor material before heating in the process of forming imogolite is called protomogolite.
- Protoimogolite has properties derived from the structure of imogolite, so 29 Si solid-state NMR shows the same peak at ⁇ 78 ppm as imogolite, and silicon has the coordination of OH—Si— (OAl) 3. ing.
- imogolite and protomogolite have almost the same adsorption behavior at a relative humidity of 20% or less, and protomogolite has not grown to a relatively long tubular form like crystalline imogolite. However, it is thought that it has the structure of imogolite. Therefore, Protoimogolite also has an adsorbent property similar to that of imogolite in the low humidity region. For both imogolite and protoimogolite, the Si / Al molar ratio during synthesis is 0.35 to 0.55.
- imogolite which is a nano-sized tubular aluminum silicate, and its precursor, protomogolite, as well as Hassley and Hassley precursor
- imogolite and its precursor protomoygolite, as well as husclay and husclay precursor have characteristics that can adsorb various substances on the basis of its unique fine structure.
- an agent a deodorizing agent, and a gas storage agent such as carbon dioxide and methane.
- a gas storage agent such as carbon dioxide and methane.
- it since it has excellent water vapor adsorption performance, it is expected to be applied as a heat pump heat exchange material, anti-condensation agent, autonomous humidity control material and the like.
- desiccant air conditioning is intended to remove moisture in the air introduced from the outside air, so it is necessary to efficiently remove moisture even from high humidity air in summer.
- the adsorbent required in 1) has a large amount of adsorption at a relative humidity of about 5% to 60%.
- Adsorbents have been developed using the unique pores of Hassley and Hassley precursors.
- the present invention has been made in view of the circumstances as described above, can be synthesized at a lower cost than conventional, and has an excellent water vapor adsorption performance and an excellent carbon dioxide adsorption performance in a medium humidity region. It is an object of the present invention to provide a method for producing an amorphous aluminum silicate, and an adsorbent having excellent adsorption characteristics, particularly an adsorbent for desiccant air conditioning.
- the present inventors have found that water glass, which has been considered to be unsynthesizable at the time of high-concentration synthesis of conventional imogolite or amorphous imogolite, and also a husclay and a husclay precursor, The present inventors have succeeded in developing a high-performance water vapor adsorbent from aluminum sulfate and aluminum sulfate.
- the present invention for solving the above-described problems is as follows.
- [1] Water glass and an aluminum sulfate aqueous solution are mixed so that the Si / Al molar ratio is 0.70 to 1.0, and an acid or alkali is added to adjust the pH to 6 to 9, followed by 110 ° C. or lower.
- a method for producing an amorphous aluminum silicate characterized in that heating is carried out at a temperature followed by desalting.
- An adsorbent comprising the amorphous aluminum silicate of [2] or [3] as an active ingredient.
- a desiccant air-conditioning adsorbent comprising the amorphous aluminum silicate of [2] or [3] as an active ingredient.
- an amorphous aluminum silicate having excellent adsorption behavior in a medium humidity region can be provided at low cost, and water glass is used as a reagent.
- water glass is used as a reagent.
- the amorphous aluminum silicate salt obtained by the method of the present invention has high-performance water vapor adsorption performance, and in particular, can provide an adsorbent for desiccant air conditioning having excellent performance.
- FIG. 2 is a photograph showing the observation result of a transmission electron microscope of Example 1.
- FIG. 2 shows the particle size analysis result by the small angle scattering of Example 1.
- FIG. The figure which shows the NMR spectrum of Example 1 and a comparative example.
- FIG. The figure which shows the relationship between Si / Al molar ratio and water vapor
- Amorphous aluminum silicate is composed of silicon (Si), aluminum (Al), oxygen (O) and hydrogen (H) as the main constituent elements, and is a hydrated silica assembled with a number of Si—O—Al bonds. It is aluminum acid.
- the amorphous aluminum silicate is produced by mixing a solution composed of water glass and an aqueous aluminum sulfate solution, polymerizing silicon and aluminum, and subjecting to desalination after heat aging. To do.
- the amorphous aluminum silicate obtained by synthesis has the ability to adsorb 20 wt% or more of water vapor at a relative humidity of 5 to 60%.
- silicate imogolite and amorphous imogolite, and also husclay and husclay precursor it needs to be synthesized from a cheaper reagent.
- the conventional imogolite or protomoygolite, and the reagent that becomes the Si source and Al source during the synthesis of the husclay and the husclay precursor It has been found that by changing from sodium to water glass and Al source from aluminum chloride to aluminum sulfate, it is possible to manufacture at a low cost and at a high concentration.
- the mixed solution is adjusted to pH 6-9 with acid or alkali, heated, and then desalted to provide an amorphous aluminum silica that can provide a material having excellent hygroscopic behavior at a relative humidity of 5-60%.
- the acid salt is obtained.
- the glass In order to mix water glass and aluminum sulfate aqueous solution so as to be within the above predetermined range, the glass is diluted with pure water, and aluminum sulfate is dissolved in pure water to prepare respective solutions with predetermined concentrations. To do. In order to exhibit excellent adsorption behavior at a relative humidity of 60%, it is necessary to mix so that the silicon / aluminum molar ratio is 0.70 to 1.0.
- the concentration of silicon in the water glass is 1 to 2000 mmol / L
- the concentration of aluminum in the aqueous aluminum sulfate solution is 1 to 2000 mmol / L.
- the preferred concentration is 1 to 700 mmol / L of the silicon compound solution and 1 It is preferable to mix an aluminum compound solution of ⁇ 1000 mmol / L. Based on these ratios and concentrations, an aqueous aluminum sulfate solution is mixed in a water glass solution, adjusted to pH 6-9 with acid or alkali, heated at 90-110 ° C., and the product is desalted. The coexisting ions in the solution are removed by (washing), and the solid content dried is the amorphous aluminum silicate for this purpose.
- Example 1 A water glass solution 2000 mL diluted with pure water was prepared so that the Si concentration was 0.8 mol / L. Separately, aluminum sulfate was dissolved in pure water to prepare 2000 mL of an aluminum sulfate aqueous solution having an Al concentration of 0.94 mol / L. Next, an aqueous aluminum sulfate solution was mixed with the water glass solution and stirred with a stirrer. The silicon / aluminum molar ratio at this time was 0.85.
- Patent Document 5 Japanese Patent Laid-Open No. 2008-179533
- the substance disclosed in Patent Document 5 Japanese Patent Laid-Open No. 2008-179533
- Japanese Patent Laid-Open No. 2008-179533 was synthesized according to the production method of the present invention as follows. 2000 mL of sodium orthosilicate aqueous solution diluted with pure water was prepared so that the Si concentration was 0.4 mol / L. Separately, aluminum chloride was dissolved in pure water to prepare 2000 mL of an aluminum sulfate aqueous solution having an Al concentration of 0.47 mol / L. Next, the sodium orthosilicate aqueous solution was mixed with the aluminum chloride aqueous solution and stirred with a stirrer. The silicon / aluminum molar ratio at this time was 0.85.
- Example 2 The aqueous solution containing amorphous aluminum silicate obtained after heating in Example 1 was filtered, and ICP emission spectroscopic analysis was performed on Si and Al. As a result, the silicon / aluminum molar ratio in the filtrate after filtration was 0.85. From this result, it was estimated that the silicon / aluminum molar ratio on the solid phase side was 0.85. Further, when the product was subjected to fluorescent X-ray analysis in Example 1, it contained 2.0 wt% sodium and 1.9 wt% sulfuric acid in addition to silicon and aluminum.
- FIG. 2 shows a photograph of the product obtained in Example 1 observed with a transmission electron microscope. As shown in FIG. 2, two types of particles, a ring-shaped particle having a size of 2 to 3 nm and a particle having an irregular shape and a size of 2 to 10 nm, were observed.
- FIG. 3 shows the results of analyzing the peak data obtained from the product obtained in Example 1 by small-angle X-ray scattering using analysis software Nano-Solver manufactured by Rigaku Corporation.
- the substance obtained in Example 1 was a substance having a particle size distribution having peaks at 2.5 nm and 15 nm.
- Ring-shaped particles having a size of 2 to 3 nm observed by a transmission electron microscope correspond to a particle size of 2.5 nm obtained by X-ray small angle scattering.
- the 2 to 10 nm size particles having an irregular shape observed with an electron microscope it is speculated that no clear peak appeared in X-ray small angle scattering because the shape irregularity and size were not uniform. Is done.
- the particle size distribution peak around 15 nm obtained by X-ray small angle scattering is a secondary particle formed by agglomeration of ring-shaped particles having a size of 2 to 3 nm and particles having an irregular shape and a size of 2 to 10 nm. Is estimated to be the size of
- the BET specific surface area had a value of 520 m 2 / g.
- the external specific surface area by a t-plot method was 272 m 2 / g, and the specific surface area in the pores was 244 m 2 / g.
- the pore diameter distribution curve by the BJH method showed a pore diameter distribution curve having two peaks having peak tops at 2.9 nm and 54 nm as shown in FIG.
- Example 2 In this example, in the method for producing an amorphous aluminum silicate of Example 1, the conditions of the product obtained were changed by changing the Si / Al molar ratio in the range of 0.6 to 1.1. Evaluation was performed. The product was evaluated by a water vapor adsorption evaluation test. In the evaluation method, about 0.3 g of a sample is put in a weighing bottle, and the weight when dried at 100 ° C. for 1 hour is defined as a dry weight, and then placed in a constant temperature and humidity chamber at 25 ° C. and a relative humidity of 60% for 1 hour. From the amount of adsorption after the adsorption, the water vapor adsorption rate was determined. The result of Example 2 is shown in FIG. As shown in FIG. 6, when the Si / Al molar ratio is 0.70 to 1.0, preferably 0.70 to 0.95, it has been shown that it has high water vapor adsorption performance.
- Example 3 In this example, in the method for producing an amorphous aluminum silicate of Example 1, the pH of the resulting product was changed in the range of pH 4 to 10 at the pH after addition of the aqueous sodium hydroxide solution. Evaluation was performed. The evaluation of the product is the same as in Example 2. The results of Example 3 are shown in FIG. As shown in FIG. 7, it was shown that when the pH after addition of the aqueous sodium hydroxide solution was 6 to 9, it had high water vapor adsorption performance.
- Example 4 in the method for producing an amorphous aluminum silicate of Example 1, Synthesis was performed using an aqueous potassium hydroxide solution instead of an aqueous sodium hydroxide solution. As a result, the obtained product had water vapor adsorption performance equivalent to that of Example 1.
- the present invention relates to a method for producing an amorphous aluminum silicate having high performance adsorptivity in a medium humidity region, and the amorphous aluminum silicate obtained by the method of the present invention is autonomously adjusted. It is useful as a humidity regulator, a desiccant for desiccant air conditioning, a harmful pollutant adsorbent, a deodorizer, and a gas storage agent such as carbon dioxide and methane. In addition, the present invention makes it possible to easily synthesize an amorphous substance having the above characteristics in large quantities at a low cost.
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Abstract
Description
そのような中で、チューブ状アルミニウムケイ酸塩およびハスクレイの上記特性を失わずに、工業的に安価で大量に合成することが求められており、イモゴライト、非晶質イモゴライトおよびプロトイモゴライト、さらにはハスクレイおよびハスクレイ前駆体の特異な細孔を利用した吸着剤の開発が行なわれてきた。
[1]水ガラスと硫酸アルミニウム水溶液をSi/Alモル比が0.70~1.0となるように混合し、これに酸又はアルカリを添加してpH6~9に調製した後、110℃以下で加熱し、次いで脱塩処理することを特徴とする非晶質アルミニウムケイ酸塩の製造方法。
[2]前記[1]の方法により製造された非晶質アルミニウムケイ酸塩であって、29Si固体NMRスペクトルにおいて、-78ppm、-87ppm、及び-92ppm付近にピークを有することを特徴とする非晶質アルミニウムケイ酸塩。
[3]前記[1]の方法により製造された非晶質アルミニウムケイ酸塩であって、細孔径分布曲線において2~4nmと30~80nmの二つの領域にピークを有することを特徴とする非晶質アルミニウムケイ酸塩。
[4]前記[2]あるいは[3]の非晶質アルミニウムケイ酸塩を有効成分とする吸着剤。
[5]前記[2]あるいは[3]の非晶質アルミニウムケイ酸塩を有効成分とするデシカント空調用吸着剤。
非晶質アルミニウムケイ酸塩は、主な構成元素をケイ素(Si)、アルミニウム(Al)、酸素(O)及び水素(H)とし、多数のSi-O-Al結合で組み立てられた水和ケイ酸アルミニウムである。
本発明では、この非晶質アルミニウムケイ酸塩を、水ガラスと硫酸アルミニウム水溶液からなる溶液を混合し、ケイ素とアルミニウムの重合化そして加熱熟成後に脱塩処理を施すことにより製造することを特徴とするものである。
すなわち、本発明者らが鋭意検討を重ねた結果、従来のイモゴライトあるいはプロトイモゴライトさらにはハスクレイ及びハスクレイ前駆体合成時におけるSi源及びAl源となる試薬を、Si源についてはモノケイ酸であるオルトケイ酸ナトリウムから水ガラスに、Al源については塩化アルミニウムから硫酸アルミニウムに換えることにより、安価で且つ高濃度での製造が可能となることが判明したものであり、両試薬からなる出発溶液を混合し、この混合溶液を酸又はアルカリによりpH6~9に調製した後、加熱し、次いで脱塩処理することにより、相対湿度5~60%において優れた吸湿挙動を有する物質を提供しうる非晶質アルミニウムケイ酸塩が得られる。
(実施例1)
Si濃度が、0.8mol/Lになるように、純水で希釈した水ガラス溶液2000mLを調製した。また、これとは別に、硫酸アルミニウムを純水に溶解させ、Al濃度が0.94mol/Lの硫酸アルミニウム水溶液2000mLを調製した。次に、水ガラス溶液に硫酸アルミニウム水溶液を混合し、攪拌機にて撹拌した。このときのケイ素/アルミニウムモル比は0.85であった。更に、この混合溶液に、5N水酸化ナトリウム水溶液600mLを添加しpHを7とした。この溶液を室温下で30分攪拌した後、5Lの密閉容器に移し替え、恒温槽にて95℃で1日間加熱を行った。こうして非晶質アルミニウムケイ酸塩を含む水溶液を得た。冷却後、遠心分離により4回洗浄後、60℃で乾燥を行った。
比較例としては、上記特許文献5(特開2008-179533号公報)にて示された物質について、以下のように、本発明の製造方法に準拠して合成を行った。
Si濃度が、0.4mol/Lになるように、純水で希釈したオルトケイ酸ナトリウム水溶液2000mLを調製した。また、これとは別に、塩化アルミニウムを純水に溶解させ、Al濃度が0.47mol/Lの硫酸アルミニウム水溶液2000mLを調製した。次に、塩化アルミニウム水溶液にオルトケイ酸ナトリウム水溶液を混合し、攪拌機にて撹拌した。このときのケイ素/アルミニウム比モルは0.85であった。更に、この混合溶液に、5N水酸化ナトリウム水溶液20mLを添加しpHを7とした。この溶液を室温下で30分攪拌した後、5Lの密閉容器に移し替え、恒温槽にて95℃で1日間加熱を行った。こうして非晶質アルミニウムケイ酸塩を含む水溶液を得た。冷却後、遠心分離により4回洗浄後、60℃で乾燥を行った。
さらに実施例1において生成物について、蛍光X線分析を行ったところ、ケイ素およびアルミニウム以外に、ナトリウムが2.0wt%、硫酸が1.9wt%含まれていた。
図1に、実施例1で得られた生成物の粉末X線回折図形を示す。図1に見られるように、2θ=27°と40°付近にブロードなピークが見られ、非晶質アルミニウムケイ酸塩に特徴的なピークが観察された。
この結果から実施例の物質は非晶質物質であることが確認された。
透過型電子顕微鏡によって観察された2~3nmのサイズを有するリング状の粒子は、X線小角散乱によって得られた2.5nmの粒子サイズに対応する。その一方、電子顕微鏡で観察された不規則な形を有する2~10nmのサイズの粒子については、形状の不規則さとサイズが揃っていないことからX線小角散乱では明確なピークが現れなかったと推測される。またX線小角散乱において得られた15nm付近の粒径分布ピークは、2~3nmのサイズを有するリング状の粒子と、不規則な形を有する2~10nmのサイズの粒子の凝集による2次粒子のサイズであると推測される。
29Si固体NMRでは、比較例で得られた物質においては、ピークは、-78ppm及び-87ppm付近にピークが見られたが、実施例1で得られた物質において、ピークは、-78ppm及び-87ppmに加えて、さらに、-92ppm付近に見られた。
27Al固体NMRでは、どちらも6配位に由来する0ppmと4配位に由来する53ppm付近にピークが見られた。
本実施例では、実施例1の非晶質アルミニウムケイ酸塩の製造方法において、Si/Alのモル比を0.6~1.1の範囲にて条件を変えて、得られた生成物の評価を行った。
生成物の評価は、水蒸気吸着評価試験により行った。評価方法は、秤量瓶に約0.3gの試料を入れ、100℃で1時間乾燥させた際の重量を乾燥重量とし、その後25℃相対湿度60%における恒温恒湿槽に1時間入れ水蒸気を吸着させた後の吸着量から、水蒸気吸着率を求めた。
実施例2の結果を図6に示す。図6のようにSi/Alモル比が0.70~1.0、好ましくは0.70~0.95において、高い水蒸気吸着性能を有することが示された。
本実施例では、実施例1の非晶質アルミニウムケイ酸塩の製造方法において、水酸化ナトリウム水溶液添加後のpHにて、pH4~10の範囲にて条件を変えて、得られた生成物の評価を行った。生成物の評価は、実施例2と同じである。
実施例3の結果を図7に示す。図7のように水酸化ナトリウム水溶液添加後のpHが6~9において、高い水蒸気吸着性能を有することが示された。
本実施例では、実施例1の非晶質アルミニウムケイ酸塩の製造方法において、
水酸化ナトリウム水溶液の代わりに水酸化カリウム水溶液を用いて合成を行った。その結果、得られた生成物は実施例1と同等の水蒸気吸着性能を有していた。
Claims (5)
- 水ガラスと硫酸アルミニウム水溶液をSi/Alモル比が0.70~1.0となるように混合し、これに酸又はアルカリを添加してpH6~9に調製した後、110℃以下で加熱し、次いで脱塩処理することを特徴とする非晶質アルミニウムケイ酸塩の製造方法。
- 請求項1に記載の方法により製造された非晶質アルミニウムケイ酸塩であって、29Si固体NMRスペクトルにおいて、-78ppm、-87ppm、及び-92ppm付近にピークを有することを特徴とする非晶質アルミニウムケイ酸塩。
- 請求項1に記載の方法により製造された非晶質アルミニウムケイ酸塩であって、細孔径分布曲線において2~4nmと30~80nmの二つの領域にピークを有することを特徴とする非晶質アルミニウムケイ酸塩。
- 請求項2又は3に記載の非晶質アルミニウムケイ酸塩を有効成分とする吸着剤。
- 請求項2又は3に記載の非晶質アルミニウムケイ酸塩を有効成分とするデシカント空調用吸着剤。
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US13/060,384 US8202360B2 (en) | 2008-09-02 | 2009-09-02 | Method of producing amorphous aluminum silicate, amorphous aluminum silicate obtained with said method, and adsorbent using the same |
CN200980133195.4A CN102131734B (zh) | 2008-09-02 | 2009-09-02 | 非晶态硅酸铝盐的制造方法、通过该方法得到的非晶态硅酸铝盐以及使用该非晶态硅酸铝盐的吸附剂 |
EP09811500.9A EP2322479A4 (en) | 2008-09-02 | 2009-09-02 | METHOD FOR PRODUCING AN AMORPH ALUMINIUM SILICATE SALT, ALUMINIUM SILICATE SALT WAS OBTAINED IN THIS PROCEDURE AND ADSORPTION AGENT THEREWITH |
JP2010527787A JP4714931B2 (ja) | 2008-09-02 | 2009-09-02 | 非晶質アルミニウムケイ酸塩の製造方法、及びその方法により得られた非晶質アルミニウムケイ酸塩、並びにそれを用いた吸着剤 |
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JP2016215126A (ja) * | 2015-05-20 | 2016-12-22 | 国立研究開発法人産業技術総合研究所 | 非晶質アルミニウムケイ酸塩の造粒体に吸湿性の塩を担持させた水蒸気吸着材 |
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CN102131734B (zh) | 2014-03-12 |
EP2322479A4 (en) | 2013-07-03 |
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EP2322479A1 (en) | 2011-05-18 |
JPWO2010026975A1 (ja) | 2012-02-02 |
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