A method for obtaining hierarchical BEA, MOR, MFI, MTW, and GIS zeolites and nanocomposites by partial recrystallization of perlite and obsidian in the presence of polyquaternary ammonium salts, which act as structure-directing agents, is proposed. The obtained materials are characterized by a developed specific surface, the presence of Lewis (up to 98 μmol/g) and Bronsted (5-105 μmol/g) acid sites and show catalytic activity in the process of 1,1-diethoxyethane production from acetaldehyde and ethanol.

中文翻译：

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从黑曜石和珍珠岩中获得的层次沸石的性质

提出了一种在聚季铵盐作为结构导向剂的情况下，通过珍珠岩和黑曜石的部分重结晶获得分级 BEA、MOR、MFI、MTW 和 GIS 沸石和纳米复合材料的方法。所得材料的特点是具有发达的比表面，存在路易斯（高达 98 μmol/g）和布朗斯台德（5-105 μmol/g）酸位点，并在生产 1,1-二乙氧基乙烷的过程中表现出催化活性。乙醛和乙醇。