Patent classifications
C
CHEMISTRY; METALLURGY
Load children
C01
INORGANIC CHEMISTRY
Load children
C01B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF;; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
Load children
39/00
Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
Load children Filter patents View analytics View as hierarchy Open in page
C01B39/02
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
Load children Filter patents View analytics View as hierarchy Open in page
C01B39/44
Ferrierite type, e.g. types ZSM-21, ZSM-35 or ZSM-38
Load children Filter patents View analytics View as hierarchy Open in page
C01B39/445
using at least one organic template directing agent
Filter patents View analytics View as hierarchy Open in page

C01B39/445

DEHYDRATION-HYDROLYSIS PROCESSES AND CATALYSTS THEREFOR
20170183282 · 2017-06-29 ·

A process for the co-production of acetic acid and dimethyl ether by contacting methyl acetate and methanol in the presence of catalysts comprising crystalline zeolites having a FER framework type which crystallites have a dimension in the c-axis of about 500 nanometres (nm) or less and a ratio of the c-axis:b-axis dimension of 5:1 or greater and a method for preparation of the zeolites utilising piperazines.

Synthesis of finned zeolite crystals
12434974 · 2025-10-07 · ·

A secondary growth procedure described herein is used to prepare finned zeolites. The finned zeolites possess properties that are distinctly unique compared to crystals of similar size lacking fins. The procedure is amenable to a wide range of zeolite crystal structures.

SYNTHESIS OF FINNED ZEOLITE CRYSTALS
20260028236 · 2026-01-29 · ·

A secondary growth procedure described herein is used to prepare finned zeolites. The finned zeolites possess properties that are distinctly unique compared to crystals of similar size lacking fins. The procedure is amenable to a wide range of zeolite crystal structures.