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Diphosphonate phosphite composition of four-value metal in microporous crystalline form with narrow microporous distribution

机译：微孔晶体形式的四价金属二膦酸酯亚磷酸酯组成，具有窄的微孔分布

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摘要

A tetravalent metal diphosphonate-phosphite composition definable by the following general formula: M(O3P-R-PO3)1-x(HPO3)2x (I is described where: M is a tetravalent metal; x varies from 0.5 to 0.66; R is an organic radical of bivalent aromatic type, carrying side groups which increase its steric hindrance. The composition is in the form of a crystalline solid with a type alpha layered structure with the diphosphonic groups positioned to join said layers together by a covalent bond (pillared compounds). It has a B.E.T. surface area from 300 to 500 m2/g depending on the nature of R in formula (I), and a porosity in the micropore radius range of less than 20 ANGSTROM (Angstrom), such micropores contributing to the extent of more than 95% of the total area for the most crystalline materials. IMAGE

机译：可通过以下通式定义的四价金属二膦酸亚磷酸酯组合物：M（O3P-R-PO3）1-x（HPO3）2x（I>描述为：其中，M为四价金属; x在0.5至0.66之间变化; R是一种二价芳族类型的有机基团，带有增加其空间位阻的侧基。该组合物为具有固态α型层状结构的结晶固体形式，二膦酸基团通过共价键定位成将所述各层连接在一起取决于式（I）中R的性质，其BET表面积为300-500m 2 / g，并且在微孔半径范围内的孔隙率小于20埃（埃），这种微孔对于大多数结晶材料，其贡献超过总面积的95％。

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公开/公告号DE69122731D1

专利类型
公开/公告日1996-11-21

原文格式PDF
申请/专利权人 ENIRICERCHE S.P.A. MAILAND/MILANO IT;
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申请/专利号DE19916022731T
发明设计人 ALBERTI GIULIO I-06100 PERUGIA IT;COSTANTINO UMBERTO I-06100 PERUGIA IT;VIVANI RICCARDO I-06062 CITTA DELLA PIEVE (PERUGIA) IT;ZAPPELLI PIERGIORGIO I-00015 MONTEROTONDO (ROME) IT;ROSSODIVITA ANTONIO I-00015 MONTEROTONDO (ROME) IT;
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申请日1991-12-11
分类号C07F9/02;B01J29/00;
国家 DE
入库时间 2022-08-22 03:13:22

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