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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0166333 (1980-07-07) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 409 인용 특허 : 5 |
A novel family of crystalline, microporous aluminophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures of aluminophosphate gels containing a molecular structure-forming template. The family comprises a number of distinct species, each with a unique crystal s
A novel family of crystalline, microporous aluminophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures of aluminophosphate gels containing a molecular structure-forming template. The family comprises a number of distinct species, each with a unique crystal structure. Calcination removes volatile extraneous matter from the intracrystalline void space and yields microporous crystalline adsorbents with uniform pores, the dimensions of which vary, among the individual species, from about 3A to 10A in diameter. The compositions represent a new class of adsorbents of the molecular sieve type, and also exhibit properties somewhat analogous to zeolitic molecular sieves which render them useful as catalysts or catalyst bases in chemical reactions such as hydrocarbon conversions.
Crystalline aluminophosphates each having a framework structure whose chemical composition expressed in terms of mole ratios of oxides is: Al2O3:1.0±0.2 P2O5: each of said framework structures being microporous in which the pores are uniform and have nominal diameters within the range of about 3 to
Crystalline aluminophosphates each having a framework structure whose chemical composition expressed in terms of mole ratios of oxides is: Al2O3:1.0±0.2 P2O5: each of said framework structures being microporous in which the pores are uniform and have nominal diameters within the range of about 3 to about 10 Angstroms, an intracrystalline adsorption capacity for water at 4.6 torr and 24°C. of at least 3.5 weight percent, the adsorption and desorption of water being completely reversible while retaining the same essential framework topology in both the hydrated and dehydrated state.
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