21
Thomas R Delcourt: Rotor for increasing mixing efficiency in a medium consistency mixer. Kamyr, Nixon & Vanderhye, November 23, 1993: US05263774 (39 worldwide citation)

Medium consistency (e.g. about 5-18%) paper pulp is mixed with a treatment fluid by fluidizing them while subjecting them to a constantly changing shear field in radial and axial planes. This is accomplished by providing a mixer rotor having a constantly varying cross-section along a dimension of el ...


22
Michael I Sherman: Method of countercurrent acid hydrolysis of comminuted cellulosic fibrous material. Kamyr, Nixon & Vanderhye, May 26, 1987: US04668340 (38 worldwide citation)

A method and apparatus are provided for the treatment of comminuted cellulosic fibrous material to effect prehydrolysis, and then subsequently kraft digestion, thereof, to produce paper pulp. The material is steamed, entrained in liquid to form a suspension, and transferred by a high pressure feeder ...


23
Haigh M Reiniger: Process for dry recovery of materials from solid refuse. Southeast SBIC, David H Semmes, Warren E Olsen, February 7, 1978: US04072273 (37 worldwide citation)

A solid waste pollution control process for the dry recovery and restoration of 100% recycled paper pulp, machine cleaned confetti thrashed paper, fibrous fuels, plastic materials and construction aggregates from "solid municipal refuse", consisting of municipal household garbage, household yard tra ...


24
Improvements in or relating to resins. Hercules Powder, April 19, 1961: GB865727-A (37 worldwide citation)

Water-soluble condensates are made by heating together at reaction temperatures a C3 to C8 saturated aliphatic dicarboxylic acid and a polyalkylene polyamine containing 2 to 8 alkylene groups and reacting the resultant polyamide with epichlorohydrin. Specified polyamines are the polyethylene, polypr ...


25
Mark Aaron Emalfarb, Arie Ben Bassat, Arkady Panteleimonovich Sinitsyn: Treating cellulosic materials with cellulases from chrysosporium. Mark A Emalfarb, Morgan & Finnegan, January 18, 2000: US06015707 (35 worldwide citation)

The subject invention relates to novel compositions of neutral and/or alkaline cellulase and methods for obtaining neutral and/or alkaline cellulase compositions from Chrysosporium cultures, in particular Chrysosporium lucknowense. This invention also provides mutants and methods of generating mutan ...


26
Mark Aaron Emalfarb, Arie Ben Bassat, Richard P Burlingame, Vladimir Mikhaylovich Chernoglazov, Oleg Nicolaevich Okounev, Philip T Olson, Arkady Panteleimonovich Sinitsyn, Irina Vladimirovna Solovjeva: Cellulase compositions and methods of use. Mark A Emalfarb, Morgan & Finnegan, September 22, 1998: US05811381 (34 worldwide citation)

The subject invention relates to novel compositions of neutral and/or alkaline cellulase and methods for obtaining neutral and/or alkaline cellulase compositions from Chrysosporium cultures, in particular Chrysosporium lucknowense. This invention also provides mutants and methods of generating mutan ...


27
Thomas R Delcourt, Johan Gullichsen, Ronald G Bain, C Bertil Stromberg: Concentric ring fluidizing mixer. Ahlstrom Machinery, September 29, 1998: US05813758 (33 worldwide citation)

A mixer, having a unique rotor, is particularly suitable for mixing paper pulp having a consistency of about 6-15% (medium consistency) with a bleaching gas having an ozone content of at least one percent, and typically at least six percent. The rotor comprises a disc shaped base, a hub at the cente ...


28
Wayne F Carr: System for monitoring contaminants with a detector in a paper pulp stream. Andrus Sceales Starke & Sawall, July 19, 1988: US04758308 (33 worldwide citation)

In a contaminant detector for processing paper pulp including sticky contaminants, a pulp sample is diluted to less than 0.5% consistency and passed through a concentrator from a plurality of classified samples having heavy and light particles. The inclined classified samples are again diluted to le ...


29
Jean Erik Kignell: Process for chemicals and energy recovery from waste liquors. Brumbaugh Graves Donohue & Raymond, February 28, 1989: US04808264 (33 worldwide citation)

Process for recovering chemicals and energy from cellulose waste liquors preferably black kraft liquor obtained in a paper pulp sulphate process, comprising the following, three distinct and separate steps: In the first step the concentrated black liquor is gasified in a pressurized gasification rea ...


30
Kenton J Brown: Pulp refiner with fluidizing inlet. Internationa Paper Company, Walt Thomas Zielinski, April 11, 1989: US04820381 (33 worldwide citation)

A pulp fluidizer and pulp disc refiner apparatus and process. Paper pulp stock of either low (3-8%) or medium (8-15%) fiber consistency is fed from the fluidizer portion of the apparatus to the disc refiner. The construction is such that the outlet of the fluidizer is contiguous to the inlet of the ...



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