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Process for purifying phosphogypsum

Dec 20, 1983· Another object and advantage is the provision of a process for rapidly purifying waste phosphogypsum to reduce its high level of radioactivity Still another object is the provision of a process for purifying phosphogypsum in which very large proportions of the waste phosphogypsum are converted to a purified product of lower radioactivity...

Florida Phosphate Mining Waste By

Jan 04, 2016· During the production of fertilizer from phosphates, many unwanted toxins or waste by-products are made as well Florida's phosphate production's by-products are in the form of active airborne toxic chemical agents and heavy metals or central nervous system chemical agents...

Water treatment

Water treatment therefore should remove the dissolved oxygen and maintain the boiler water with the appropriate pH and alkalinity levels Without effective water treatment, a cooling water system can suffer from scale formation, corrosion and fouling and may become a breeding ground for harmful bacteria...

How to Remove Wallpaper the Easy Way

A steamer uses boiling water to soften the glue between the wallpaper and the wall If you are removing vinyl-coated wallpaper with a steamer, you still have to use a scoring tool to punch holes in the paper so the steam can reach the glue Rent a steamer instead of purchasing one, since this is not a ,...

Utilisation of Water

Slavinskaya [31] used water to remove organic and mineral impurities at an industrial ion-exchange installation Shuang et al [32] investigated the possibility of using deionised water (DW) to remove chloride ions for inexpensive ultra-pure TiCl4 Therefore, as a simple and mild pre-treatment method for purification, water-washing has potential...

How to Remove Tartar: 10 Steps (with Pictures)

Sep 05, 2019· How to Remove Tartar Have you ever noticed a sticky buildup on your teeth when it's time to brush? This is called plaque, and if it's not brushed away, it can harden into a substance called tartar Tartar is a rough, bumpy deposit along....

3 Ways to Remove Chrome Plating

Jul 18, 2019· In high concentrations, it can be used to remove chrome plating from metal objects For removing chrome, an acid solution of about 30-40% concentration should suffice Proceed as below: Mix 1/3 part hydrochloric acid to 1 part water in a vat used for chemical mixtures (like a heavy-duty plastic bucket, etc) to produce a 30% acid solution...

US Patent for Methods for concentrating rare

The present invention relates to a method for producing rare-earth metals (REM) compounds by complex processing of apatite, in particularly to a method for concentrating rare-earth metals (REM) in phosphogypsum, where to a process of decomposition of the REM containing raw phosphate material with sulphuric acid, a sodium salt in the amount of 025-50 kg in terms of Na2O or a potassium salts ....

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