Low fiber calcination process for making gypsum fiberboard

Details Low fiber calcination process for making gypsum fiberboard Low fiber calcination process for making gypsum fiberboard

2011-04-05

2011-04-05

Wyrozebski, Kat (Department: 1746)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Plaster board making

C156S039000, C106S780000

Reexamination Certificate

active

07918950

ABSTRACT:
An energy efficient method for making a gypsum cellulose fiberboard comprising adding a first portion of cellulose fiber to gypsum before the gypsum and cellulose fiber are co-calcined in a reactor, adding a second portion of cellulose fiber to the slurry after it leaves the reactor to form a second slurry, depositing the slurry to form a mat, dewatering the mat, rehydrating the mat and then finishing the mat to form a final gypsum cellulose fiberboard. A reduction of up to about 40% to 50% of steam energy used can be achieved when the second portion of added cellulose fiber is 50% or more of the total cellulose fiber used in the final board compared to gypsum cellulose board made with the same ingredients but when all of the fiber is added to the gypsum prior to the reactor.

REFERENCES:
patent: 2076349 (1937-04-01), Porter et al.
patent: 2310216 (1943-02-01), Crandell
patent: 2803575 (1957-08-01), Riddell et al.
patent: 4199366 (1980-04-01), Schaefer et al.
patent: 4252568 (1981-02-01), Bounini
patent: 4306911 (1981-12-01), Gordon et al.
patent: 4339273 (1982-07-01), Meier et al.
patent: 4351867 (1982-09-01), Mulvey et al.
patent: 4392896 (1983-07-01), Sakakibara
patent: 4544424 (1985-10-01), Take et al.
patent: 4840688 (1989-06-01), Vogt
patent: 5041333 (1991-08-01), Conroy
patent: 5135805 (1992-08-01), Sellers et al.
patent: 5298071 (1994-03-01), Vondran
patent: 5320677 (1994-06-01), Baig
patent: 5401588 (1995-03-01), Garvey et al.
patent: 5558710 (1996-09-01), Baig
patent: 5601888 (1997-02-01), Fowler
patent: 5632848 (1997-05-01), Richards et al.
patent: 5637362 (1997-06-01), Chase et al.
patent: 5723226 (1998-03-01), Francis et al.
patent: 5817262 (1998-10-01), Englert
patent: 6010596 (2000-01-01), Song
patent: 6221521 (2001-04-01), Lynn et al.
patent: 6268042 (2001-07-01), Baig
patent: 6406779 (2002-06-01), Carbo et al.
patent: 6409825 (2002-06-01), Yu et al.
patent: 6508895 (2003-01-01), Lynn et al.
patent: 6531210 (2003-03-01), Englert
patent: 6706128 (2004-03-01), Sethuraman
patent: 7056460 (2006-06-01), Englert
patent: 7172403 (2007-02-01), Burke
patent: 7273579 (2007-09-01), Miller et al.
patent: 2003/0044630 (2003-03-01), Leclercq
patent: 2003/0084980 (2003-05-01), Seufert et al.
patent: 2004/0231916 (2004-11-01), Englert et al.
patent: 2005/0161853 (2005-07-01), Miller et al.
patent: 2006/0243171 (2006-11-01), Yu et al.
patent: 2006/0278132 (2006-12-01), Yu et al.
patent: 2006/0278133 (2006-12-01), Yu et al.
patent: 2007/0044687 (2007-03-01), Blackburn et al.
patent: 2007/0048490 (2007-03-01), Yu et al.
patent: 2007/0048549 (2007-03-01), Song et al.
patent: 2007/0056478 (2007-03-01), Miller et al.
patent: 2007/0102237 (2007-05-01), Baig

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