Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Waste paper or textile waste
Patent
1988-02-02
1990-09-25
Alvo, Steve
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Waste paper or textile waste
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.
Domsch Andreas
Hawel Hans
Lehmann Klaus
Alvo Steve
Chemische Fabrik Gruenau GmbH
Jaeschke Wayne C.
Millson Jr. Henry E.
Szoke Ernest G.
LandOfFree
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.
Profile ID: LFUS-PAI-O-327525