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AssigneeBharat Petroleum Corporation Limited
InventorsAnanth Kishore Kumar Sontyana, Kuppusamy Munusamy, Sayanti Ghosh, Shivanand Mukund Pai, Lalit Kumar, Mahesh Wamanrao Kasture, Bharat Lakshman Newalkar
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The present invention provides a process for preparing a zeolite by hydrothermal heating of silica precursor and alumina precursor along with a combination of two structure-directing organic templates, N,N-dimethyl formamide and 1,6-diaminohexane in the presence of an alkali. The use of two structure-directing organic templates, not only reduces the crystallization time but also enables the preparation of more catalytically active ZSM-22 of submicron crystallite size. The present invention also provides a process of preparing a noble metal containing zeolite catalyst for hydroisomerization of long chain n-paraffins.
A process for the synthesis of zeolite from a reaction mixture comprising silica and alumina precursors along with a combination of two structure-directing organic templates, N,N-dimethyl formamide and 1,6-diaminohexane in the presence of an alkali and maintaining said reaction mixture at a sufficient temperature to crystallize the zeolite and recovering the zeolite wherein the zeolite is selected from zeolites of the TON framework structure.
Dependencies are inferred from the claim text.