Method with high solid retention capacity for fiber cement production, use and production method with high solid retention capacity and fiber cement article
AssigneesSuzano S.A., Universidade de Sao Paulo-USP
InventorsGermano SIQUEIRA, Vanderley Moacyr JOHN, Beatriz Rodrigues DA SILVA, Fábio Alonso CARDOSO, Holmer Savastano JUNIOR
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Abstract
The present disclosure relates to the field of building materials. In particular, the present disclosure relates to fiber cement production methods and processes that exhibit high solid retention capacity in the dewatering step, providing increased productivity and potentially other process gains related to the lower concentration of solids and additives in the process water.
Claims38
A method with high solids retention capacity for the production of fiber cement comprising the steps:
- a) preparing a fiber cement suspension by adding and mixing of
- a1) dispersion water and
- a2) powdery material, reinforcing fiber material, cellulose filament and cellulose fiber so as to form a fiber cement suspension,
- b) dewatering the fiber cement suspension, obtaining a fiber cement.
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A production process with high solids retention capacity for the production of fiber cement comprising:
- (1) providing a fiber cement suspension comprising pulverulent material, reinforcing fiber material, cellulose filament and cellulose fiber,
- (2) discharging the fiber cement suspension onto a conveyor belt, and
- (3) dewatering the fiber cement suspension to form a fiber cement having a predetermined thickness.
Dependencies are inferred from the claim text.