摘要:
The present invention discloses a tunable, radiation filter comprising a highly ordered crystalline array of microparticles fixed in a polymerized hydrogel.
摘要:
The present invention discloses a tunable, radiation filter comprising a highly ordered crystalline array of microparticles fixed in a polymerized hydrogel.
摘要:
Water-soluble cross-linked cationic polysulfonium derivatives of poly(thiodiethanol)ethers are useful flocculants for suspended solids in aqueous medium.
摘要:
Selective flocculation of iron ores is accomplished through the employment of partially carboxylated polyacrylamides as the selective flocculant. The partially carboxylated polyacrylamides employed in the selective flocculation contain from about 20-65% carboxyl groups and are of a molecular weight in excess of one million. The selective flocculation process performs a separation of iron ores predominantly containing semitaconite, oxidized taconite and hematitic-goethitic jaspers from their associated siliceous gangue.
摘要:
Water-soluble cross-linked polysulfonium derivatives of poly(thiodiethanol) ethers are provided by reacting the ethers with difunctional sulfide-reactive alkylating agents.
摘要:
A process for the recovery of mineral values from base metal and precious metal ores is disclosed. Specifically, a froth flotation process is disclosed which comprises contacting an aqueous ore slurry with an effective amount of a dihydroxyalkyl group containing polysaccharide, a mineral collector and a frothing agent.