نتایج جستجو برای: iranian natural zeolites
تعداد نتایج: 524536 فیلتر نتایج به سال:
The article represents the results of studies in zeolite use fish feeding. influence zeolites on exterior and interior characteristics African catfish grown high-technological industrial aquaculture was evaluated. Zeolites were introduced into feed amount 3 % 5 %. feeding has had a positive impact growth, indicators fish. In five-month-old catfish, when using zeolites, average daily growth incr...
In this Account strategies using zeolites as media to achieve chiral induction are presented. Diastereomeric excesses as high as 90% and enantiomeric excesses up to 78% have been obtained with selected systems within zeolites. The same systems show no asymmetric induction in solution. Chiral induction is dependent on the alkali ions present in the zeolites. Alkali ions control not only the exte...
Zeolites are an important class of materials that have wide ranging applications such as heterogeneous catalysts and adsorbents which are dependent on their framework topology. For new applications or improvements to existing ones, new zeolites with novel pore systems are desirable. We demonstrate a method for the synthesis of novel zeolites using the ADOR route. ADOR is an acronym for Assembly...
Society faces a significant problem in regards to the spread of harmful products environment, primarily caused by accelerated growth and resource consumption. Consequently, there is need for materials be processed less ways remedy contaminated sources they generate. Microporous have been studied long time are used waste treatment alternatives. Natural zeolites, on which this study based, attrac...
Cation exchange capacity (CEC) is an important characteristic of zeolites, especially when they are used as adsorbents in the aqueous system. However, no international standard method exists for the determination of CEC of zeolites. We determined CEC of Linde-type A and Na-P1 type zeolites at various pH (4 to 10) with a simple method, where Na+-saturated zeolites were prepared, and then various...
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