Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method of removing lignin from bleach plant effluents

Method of removing lignin from bleach plant effluents

US Patent 4812207 · Granted Mar 14, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Procedure for adding a filler into a pulp based on cellulose fibers2002
Concentric ring fluidizing mixer1998
Minimal effluents discharge pulp mill with chemical recovery1996
Apparatus for minimizing effluent discharges and recovering chemicals in a pulp 1996
Zero discharge mill distillation, salt recovery, and water management1996
Reducing pulp mill liquid discharge1995
Method for minimizing pulp mill effluents1994
Method for decreasing energy consumption during refining of fiber material at a 1991
Method of removing organic substances from effluents from pulp and paper manufac1991
Method and apparatus for feeding a conical refiner1991
Method and apparatus for pumping fibre suspensions1989
Method of removing macromolecular organic dissolved and colloidal material from 1989