Improvements in alumina plants
Improvements in or relating to electrochemical cells
Improvements in or relating to red phosphorus
Improvements on flower stands
Improving efficiency of ammonia processes
Improving the generation of active polysulphide
Improving the separation of diamond from gangue minerals
Impurity removal
In line ozone generator unit
In situ calcium phosphate minerals -- method and composition
In situ formed anionic clay-containing bodies
In situ regeneration of sulfur recovery unit catalyst
In-situ gasification of soot contained in exothermically...
Incineration units employing inorganic sodium salts
Increased preheating of sulfur plant gases
Increased production of wet process phosphoric acid by...
Increased recovery in dual temperature isotope exchange process
Increasing lattice metal content of porous inorganic...
Increasing the resistance of crystals to "optical damage"
Indium extraction process