Characterization and neutralizing properties of a natural zeolite/Na2CO3 composite material

被引：42

作者：

Rivera, A ^{[1
]}

Rodriguez-Fuentes, G

Altshuler, E

机构：

[1] Univ Havana, Fac Phys, Zeolites Engn Lab, Inst Mat & Reagents, Havana 10400, Cuba

[2] Univ Havana, Fac Phys, Superconduct Lab, Inst Mat & Reagents, Havana 10400, Cuba

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 1998年 / 24卷 / 1-3期

关键词：

antacid; clinoptilolite-heulandite; natural zeolites; pepsin;

D O I：

10.1016/S1387-1811(98)00148-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

A new zeolitic active principle called NZ* has been obtained, the neutralizing properties of which are better than those of its predecessor, Neutacid N. The new product is the result of hydrothermal transformations applied to purified natural clinoptilolite. NZ* and other related products have been characterized physically and chemically using atomic emission spectroscopy with inductively coupled plasma, X-ray fluorescence analysis, X-ray diffraction, IR spectroscopy, neutralizing capacity in the presence of synthetic gastric juice and UV spectroscopy. It was demonstrated that the structure of the zeolitic raw mineral remained unchanged after hydrothermal transformation, and that NZ* is structurally stable after interaction with synthetic gastric juice. The effect of NZ* dose on the gastric enzyme pepsin was evaluated. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：51 / 58

页数：8

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