Reagent for froth flotation of bituminous coal

Compositions – Physical separation agents – Froth-flotation or differential adherence

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

209 49, 209166, 210705, B03D 100

Patent

active

043728642

ABSTRACT:
A reagent and a method for using the reagent for treating a solid material disposed in a liquid medium and having an oxygen-controlled surface condition. The reagent includes a liquid hydrocarbon, a reducing material and an activator material. The liquid hydrocarbon such as mineral oil has a specific gravity different from the specific gravity of the liquid medium. The reducing material such as phosphorous pentasulfide is present in an amount sufficient to establish a reducing environment around the solid material for breaking the oxygen control on the surface of the solid material. The activator material such as zinc thiophosphate is present in an amount sufficient to establish an electrostatic charge on the solid material after the oxygen-controlled surface condition has been broken. A more specific feature of the invention is directed to the method of flotation of extremely fine bituminous coal having an oxygen-controlled surface condition. The reagent is used in the conventional froth flotation equipment of the prior art.

REFERENCES:
patent: 1420164 (1922-06-01), Trent
patent: 1425185 (1922-08-01), Ellis
patent: 1425587 (1922-08-01), Ellis
patent: 1483270 (1924-02-01), Barrows
patent: 1497699 (1924-06-01), Sayre
patent: 1552197 (1925-09-01), Bates
patent: 1573226 (1926-02-01), Crousdale
patent: 1593232 (1926-07-01), Whitworth
patent: 1628046 (1927-05-01), Norman
patent: 1652060 (1927-12-01), Smith
patent: 1667277 (1928-04-01), Wilkinson
patent: 1772386 (1930-08-01), Derby
patent: 1788331 (1931-01-01), Schafer
patent: 1788332 (1931-01-01), Schafer
patent: 1810658 (1931-06-01), Kritchevsky
patent: 2088624 (1937-08-01), Tschudy
patent: 2265851 (1941-12-01), Matheson
patent: 2492936 (1949-12-01), Nokes
patent: 2797238 (1957-06-01), Miller
patent: 2959544 (1960-11-01), Smith
patent: 2999813 (1961-09-01), Givens
patent: 3536445 (1970-10-01), Hansley
patent: 3919080 (1975-11-01), Stautor
patent: 4118331 (1978-10-01), Jahnke

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Reagent for froth flotation of bituminous coal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reagent for froth flotation of bituminous coal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reagent for froth flotation of bituminous coal will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-48861

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.