English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

砕石場では,砕石を製品化する際に産業廃棄物として砕石屑が発生する.本研究では,砂岩砕石屑の有効利用を目的として,焼却灰からのゼオライト合成において代表的なアルカリ水熱法とアルカリ溶融法を用いて,砕石屑からのゼオライト合成を試みた.アルカリ水熱法では砕石屑からのゼオライト合成は行えなかったが,アルカリ溶融法では砕石屑の大部分をゼオライトに転換できた.アルカリ溶融法で得られた生成物はゼオライトXとハイドロキシソーダライトを含み,陽イオン交換能は約230cmol/kgと天然ゼオライトより高い能力を示した.During the quarrying, crushed stone waste has been discharged as an industrial waste. In this study, we tried to convert crushed sandstone waste to zeolitic materials using two typical methods for zeolitic conversion from the incinerated ash wastes: alkali hydrothermal method and alkali fusion method. No zeolite phases were synthesized by alkali hydrothermal method, while by alkali fusion method, most of parts in the stone waste can be converted to zeolite phases. The zeolite phases in the product by alkali fusion method were identified zeolite-X and hydroxysodalite, and the cation exchange capacity of the product was ca. 230cmol/kg, which was higher than that of natural zeolite

Zeolite Conversion for Effective Utilization of Crushed Sandstone Waste