Current Topics on Solid Acid and Base Catalysts
نویسندگان
چکیده
منابع مشابه
Aldol Condensation of Aldehydes and Ketones over Solid Base Catalysts
Introduction Industrially condensation reactions are of great importance in the production of a number of key compounds. These include 2-ethyl hexanol, methyl isobutyl ketone (MIBK) and Guerbet alcohols. Over 1.5 million tonnes of these chemicals are produced worldwide every year using homogeneous bases such as NaOH and Ca(OH)2. It has been estimated for these compounds that 30% of the selling ...
متن کاملSolid acid catalysts based on supported tungsten oxides
Supported WOx clusters are active and stable catalysts for isomerization, dehydration, and cracking reactions. Brønsted acid sites form on WOx clusters when a lower valent element replaces W6+ or when W6+ centers reduce slightly during catalytic reactions. WOx clusters of intermediate size provide the balance between reducibility and accessibility required to maximize the number of surface H+ s...
متن کاملNitrogen-containing carbon nanotubes as solid base catalysts.
Nitrogen-containing carbon nanotubes (NCNT) are effective re-usable solid base catalysts, their activity for a Knoevenagel condensation being related to the amount of pyridinic nitrogen incorporated in the NCNT structure, which could be tuned by the synthesis parameters of the catalyst.
متن کاملAsymmetric Organocatalysis 1: Lewis Base and Acid Catalysts
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V Abstracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IX Table of
متن کاملEditorial Notes on Current Topics
We have much pleasure in announcing that the lis. 100 prize offered by Messrs. Thacker, ?Spink & Co., for the best essay on 'How Plague is spread,' has been awarded to Major S. Browning Smith, I.M.S., Plague Medical Officer, Punjab, for his paper on 'The Spread of Plague' which appeared in our July number. We have to thank Colonel Lukis, Principal of the Medical College, Calcutta, for kindly ju...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Hyomen Kagaku
سال: 1983
ISSN: 0388-5321,1881-4743
DOI: 10.1380/jsssj.4.96