Steel mill flume water treatment

Details Steel mill flume water treatment Steel mill flume water treatment

1995-01-20

1996-09-10

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

72 39, 134 251, 134 40, 210734, 210735, 210736, B01D 1705

Patent

active

055542980

ABSTRACT:
The invention comprises a method of preventing deposition of oil on steel mill scale particles comprising adding from about 1 part per million to about 500 parts per million of an amine acrylate/acrylic acid copolymer to mill flume water. Once the copolymer is added, deposition of oil onto scale particles is prevented. The recovered mill scale has less than 2% oil by weight on the scale, making it suitable for recycle to the steelmaking process. Oil and water are subsequently separated with a greater percentage of oil being recovered.

REFERENCES:
patent: 3345841 (1967-10-01), Phelan et al.
patent: 4588508 (1986-05-01), Allenson et al.
patent: 4715962 (1987-12-01), Bhattacharyya et al.
patent: 4995912 (1991-02-01), Goss et al.
patent: 5015391 (1991-05-01), Mohn
patent: 5332507 (1994-07-01), Braden et al.

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