Process for removing anthraquinone type scale

Details Process for removing anthraquinone type scale Process for removing anthraquinone type scale

1984-07-18

1985-12-31

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With regeneration, reclamation, reuse, recycling or...

134 2213, 134 2217, 162 3011, 162 72, 162199, D21C 1110, C23G 114

Patent

active

045619352

ABSTRACT:
A process for removing an anthraquinone type scale comprises condensing a steam evaporated from a black liquor obtained by separating pulp from a digested mixture of lignocelluloses containing an anthraquinone type digesting assistant; and contacting a heated aqueous solution of a base in the presence or absence of a reducing agent or an alkali resistant surfactant with a wall of a condenser of an evaporator on which said anthraquinone type scale is adhered.

REFERENCES:
patent: 1049054 (1912-12-01), Coombs
patent: 4213821 (1980-07-01), Vanderhock
patent: 4263092 (1981-04-01), Klaessig
patent: 4481073 (1984-11-01), Sakai et al.

Affiliated with

Also associated with

Rating

Process for removing anthraquinone type scale does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for removing anthraquinone type scale, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for removing anthraquinone type scale will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1023267