Home | My Profile | Contact Us
Research Trends Products  |   order gateway  |   author gateway  |   editor gateway  
Register | Forgot Password

Author Resources
 Author Gateway
 Article submission guidelines

Editor Resources
 Editor/Referee Gateway

 Regional Subscription Agents/Distributors
Trends in Chemical Engineering   Volumes    Volume 20 
Processing of some minerals using ammonium hydrodifluoride and sulfate
M. A. Medkov, G. F. Krysenko, D. G. Epov, E. E. Dmitrieva
Pages: 91 - 102
Number of pages: 12
Trends in Chemical Engineering
Volume 20 

Copyright © 2022 Research Trends. All rights reserved

The results of a study on processing of titanium-, tungsten- and boron-containing mineral raw materials using NH4HF2, (NH4)2SO4 and a mixture of these reagents are presented. It was shown that when heated, the solid-phase interaction of the mineral raw material with the indicated reagents proceeds, while at temperatures up to 200 °C, the components of the mineral raw material are fluorinated with the formation of simple and complex fluorides. A further increase in temperature leads to the formation of ammonium hydrosulfate (NH4HSO4), which, upon interaction with the formed fluorides leads to their conversion into soluble double sulfates. It was shown that a mixture of NH4HF2 and (NH4)2SO4 can be considered as a new promising reagent for the processing of certain types of mineral raw materials. The ways of extracting the components of mineral raw materials in the form of marketable products are shown.
Buy this Article


Buy this article
Buy this volume
Subscribe to this title
Shopping Cart

Quick Links
Search Products
Browse in Alphabetical Order : Journals
Browse by Subject Classification : Journals

Ordering Information Ordering Information
Downloadable forms Downloadable Forms