Use of hectorite as a clarification aid for deink plant effluent

Details Use of hectorite as a clarification aid for deink plant effluent Use of hectorite as a clarification aid for deink plant effluent

1994-03-25

1995-10-03

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210714, 210727, 210728, 210734, 210736, 210917, 210928, 162 5, C02F 156

Patent

active

054549558

ABSTRACT:
Hectorite is utilized in conjunction with a water soluble cationic coagulant to clarify waste water from the deinking of waste paper.

REFERENCES:
patent: 5013456 (1991-05-01), St. John et al.
patent: 5151155 (1992-09-01), Cody et al.
Paperchem No. 64-11794 Organophilic Smectite for Sticky Pacification; Ohtani, Sakamoto, Wakai; Proc. Pan-Pacific Pulp Pap. Tech. Conf. (Tokyo); pp. 105-110.
CA118(2):8521w Process for deinking wastepaper with organically modified Smectite clays; Cody, C. A., Magauran, E. D. (Rheox, Inc., USA) US 5151155 A, Sep. 21, 1992, 10 pages (Eng).
CA115(16):161507d Treatment of Water and Wastewater in paper manufacture; Ohtani, Y.; JP 03119190 A2 910521 Heisei, 5 pages (Japan).
CA115(16):161506c Treatment of white water for recycle in papermaking; Ootani, Y. (Nipponshi Pulp Kenkyusho K.K., Japan) JP03119189 A2 910521 Heisei, 5 pages.
CA101(14):112655c Removal of dissolved organic substance from paper mill white waters by adsorption on pigment like inorganic adsorbents. Moebius, C., Baumgarten, H., 112 (11-12), 395-8,400-2,404-6 (Ger) 1984.
CA97(26);222401y Removing anionic compounds from water. Degen, Hans J; Guender, W.; Linhard, F.; Auhorn, W.; Frey, G.; Streit, W.; Fikentscher, R. (BASF A.G.) DE 3111615 A1 821007, 32 pages.
CA96(18):148580s Product and method for treating process and wastewater in papermaking and related industries. Moebius, Christian; Weigl, J.(Sued-Chemie A.G. Fed. Rep. Ger.)EP 44058 A1; Jan. 20, 1982; 21 pages.
CA81(4):16384m Effectivity of bentonite for the clarification of paper mill effluents; Brecht, W.; Boerner, F; Dalpke, H. L. (Inst. Papierfabr., Tech. Hochsch.Darmstadt; 28(3), 89-97 (Ger) 1974.
Paperchem No.: 64-03469 Copyright 1993 IPST Research for Developing Low-Waste Technology at UkrNIIB Svitel'skii, V. P. Bum.Promst.No. 8/9; 14-16 (Aug./Sep. 1991) Russ.
Paperchem No.: 56-07724 Copyright 1993 IPST Effectiveness of Using Clay Minerals for Purifying Paper Mill Effluent; Smetsinskii, B. F.; Svitel'skii, V. P.; Denisenko, N. G.; Tarasevich, Yu. I; Sb.Nauch.Tr.,Sovesh.Tekhnol.Proizvod. Tsellyul-Bumazh.:67-72 (1979 Kiev). Russ.
Paperchem No.:55-05540 Copyright 1993 IPST Elimination of Dissolved Organic Material from Paper Mill White Waters Mobius, C. H.; Baumgarten, H. L. Wochbl.Papierfabr.112,No.11/12 395-398,400-402,404-406 Jun. 15, 1984 (Ger.; Engl.sum.).
Paperchem No: 52 -11231 Copyright 1993 IPST Use of Clay/Polymer Treatment Vs. Alum in a Solids-Contact Clarifier for Mill Process Water; Carter, C. N.; Sigler, R. G., TAPPI Eng. Conf.(Atlanta) Proc.(Book 1) 229-235.
Paperchem No.: 49-02688 Copyright 1993 IPST Process for Purifying Aqueous Industrial Effluents (Ciba-Geigy AG) Brit.Pat.1,449,387,Iss. Feb. 1, 1978;Brit.Appln. 37616/75(Sep. 12, 1975).
Paperchem No. 45 -02696, Copyright 1993 IPST, Effectiveness of Bentonite in Clarifying Paper Mill Effluents; Brecht, W.; Borner, F.; Dalpke, H. L.; Papier 28, No. 3: 89-97 (Mar., 1974).
WPI 009221096 Removing water-based and oil-based inks from waste paper using novel de-inking agent comprising organically modified Smectite type clay; U.S. Pat. No. 5,151,155, Rheox Int. Inc. Cody, C. A.; Magauran, E. D.; Masgauran, E. D.
WPI 008208565 Additive for papermaking to improve retention of fines and fillers-comprises water-swellable smectite clay mineral; Mizusawa Chemical Ind.KK; JP 2047394, Feb. 16, 1990.
WPI 003452814 Purificn. of process and waste liquor from paper mfr. using acid-activated clay to remove dissolved and colloidal organic matter; Moebius, C.: Weigl, J. (Sud Chemie AG) EP 44058 Jan. 20, 1982.
WPI 008021928 Pulp Dewatering Process comprising adding a water soluble cationic polymer before shearing and bentonite or other inorganic material after shearing; EP 335576; Oct. 4, 1989.

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