Animal husbandry – Entomological culture device – Egg treatment – production – or storage
Patent
1985-12-30
1987-11-10
Swiatek, Robert P.
Animal husbandry
Entomological culture device
Egg treatment, production, or storage
A01K 1015
Patent
active
047049898
ABSTRACT:
A process is provided herein for making absorptive pellets from clay "fines" having open pores spaces therein, the fines including clay particles that will pass through a 40-200 mesh screen. The process includes the first step of forming a mixture of clay "fines" with an aqueous solution of a binder material, e.g. a lignosol. The moistened clay-binder particles, at a moisture content of about 46% by weight, are subjected to the action of a pin-type solids conditioning and micropelletizing processor to convert the moistened clay-binder particles into partially-dried, multi-faceted, bulky aggregates, while substantially simultaneously flashing-off some of the excess moisture. This provides durable, bulky, partially-dried highly absorptive pellets having a maximum of about 25-29% by weight moisture, the durability being as tested in a manner to be described hereinafter. The pellets so formed are then preferably finally dried to a moisture content of about 5% and then may be used as cat box litter, since they are absorptive pellets having both a total surface absorption and an absorption capacity in the open pore spaces approaching the capacity of clay "fines" starting material, i.e. the surface absorption plus about 90-95% of the pore volume of the clay fines. It is also believed that the binder expands during the drying process to improve the pore volume of the pellets.
REFERENCES:
patent: 4187803 (1980-02-01), Valenta
patent: 4203388 (1980-05-01), Cortigene et al.
patent: 4311115 (1982-01-01), Litzinger
patent: 4341180 (1982-07-01), Cortigene et al.
patent: 4560527 (1985-12-01), Harke et al.
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