Process for deinking printed waste paper

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

162 8, D12C 502

Patent

active

049591231

ABSTRACT:
Process for deinking printed waste paper by treatment of the paper pulp in a pulper at alkaline pH values using alkali silicate, oxidative bleaches, higher fatty and/or resinic acids and dispersants and separation of the detached printing ink particles from the fiber suspension by flotation, the fatty and/or resinic acids being used in the form of their alkaline earth metal salts in fine distribution together with dispersants in an oil-in-water dispersion which is liquid at normal temperature.

REFERENCES:
patent: 4376011 (1983-03-01), Menschhorn et al.
patent: 4586982 (1986-05-01), Poppel et al.

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

Process for deinking printed waste paper 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 deinking printed waste paper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for deinking printed waste paper will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-327525

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