雙活性物種催化劑及應用

The present invention can be obtained in a relatively mild conditions to high speed, high selective catalytic carbonylation of methanol to acetic acid, methyl acetate, acetic anhydride carbonylation catalyst. Method is to design the molecular structure of the catalyst, methanol carbonylation reaction will have some or a significant catalytic activity and rhodium catalytic metal aid, into the active rhodium catalyst species in the molecule, to form a new class for the Oxo acetic acid, acetic anhydride dual active catalyst species. The active species of the catalyst can be positive ions containing N, O donor atoms in the organic compound or polymer with Rh (I) forming a square planar cis-dicarbonyl structure of the active species may anion containing N, O donor atoms of the organic carboxylic acid compound and transition metal complexes formed structure.

Inventor: Wei Jin | Jian Ju | Zhi Wang
Priority Number: CN100443934C
IPC Current: G02B000602 | G02B000626
Assignee Applicant: The Hong Kong University of Science & Technology
Title: Two-mode photonic crystal fibre and applications thereof | Double mould photonic crystal optical fiber and its application
Usefulness: Two-mode photonic crystal fibre and applications thereof | Double mould photonic crystal optical fiber and its application
Summary: Used in interferometric sensor, optic frequency shifter, optic wavelength filter, optic wavelength tunable switch (claimed), mode converter, mode selective coupler, and add-drop multiplexer.
Novelty: Photonic crystal fiber for e.g. interferometric sensor, has cladding region surrounding length of core material, where region includes transparent cladding material with refractive index

Optics

Optical Fiber

CHAN S.C.Albert
YUAN Guo-qing

Mainland China