Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
114 words
A porous carrier rock-based sorptional carrier consisting of at least one porous carrier rock selected from the group which consists of silicic earth, pumices, tuffs, bubble-porous lava rocks, expanded perlite, vermiculite, chalks, other porous biogeneous limes, and porous sand rocks in an amount not exceeding 95% by weight and 5 to 30% by weight of a clay mineral in a particle size of about 0.1 to 1μ and selected from the group which consists of montmorillonite, illite, kaolinite, and co-minerals thereof provided that montmorillonite is present in an amount of at least 5% by weight, having a multiple sorptional pore space, possessing a sorption capacity of at least 50%, and being quasi-spherical in shape.
Claim 2
Dependent Claim
114 words
A porous carrier rock-based sorptional carrier consisting of at least one porous carrier rock selected from the group which consists of silicic earth, pumices, tuffs, bubble-porous lava rocks, expanded perlite, vermiculite, chalks, other porous biogeneous limes, and porous sand rocks in an amount not exceeding 95% by weight and 5 to 30% by weight of a clay mineral in a particle size of about 0.1 to 1μ and selected from the group which consists of montmorillonite, illite, kaolinite, and co-minerals thereof provided that montmorillonite is present in an amount of at least 5% by weight, having a multiple sorptional pore space, possessing a sorption capacity of at least 50%, and being quasi-spherical in shape.
Claim 3
Dependent Claim
13 words
A carrier as defined in claim 1, containing silicic earth as carrier rock.
Claim 4
Dependent Claim
25 words
A carrier as defined in claim 1, containing at least 5 % by weight of montmorillonite and 10 to 25 % by weight of illite.
Claim 5
Dependent Claim
192 words
A process for the preparation of a sorptional carrier for biologically active material comprising the steps of: wet-grinding at least one porous carrier rock selected from the group which consists of silicic earth, pumices, tuffs, bubble-porous lava rocks, expanded perlite vermiculite, chalks, other porous biogeneous limes, and porous sand rocks, and suspending same in water with a quantity of a plastic clay mineral of about 5 to 30% by weight of the carrier rock, said porous clay mineral being present in a particle size of 0.1 to 1 micron and being selected from the group which consists of montmorillonite, illite and kaolinite and cominerals thereof such that montmorillonite is present in an amount of at least 5% by weight of the carrier rock; adjusting said suspension so that the dry solids thereof are present in said suspension in an amount of at least 30% by weight; intensely stirring said suspension to homogenize the same; and spray-drying the homogenized suspension though a nozzle having an orifice of 0.8 to 2.5 mm diameter in a gas stream having a temperature of at least 400°C to produce particles of 0.1 to 1.5 mm in diameter.
Claim 6
Dependent Claim
192 words
A process for the preparation of a sorptional carrier for biologically active material comprising the steps of: wet-grinding at least one porous carrier rock selected from the group which consists of silicic earth, pumices, tuffs, bubble-porous lava rocks, expanded perlite vermiculite, chalks, other porous biogeneous limes, and porous sand rocks, and suspending same in water with a quantity of a plastic clay mineral of about 5 to 30% by weight of the carrier rock, said porous clay mineral being present in a particle size of 0.1 to 1 micron and being selected from the group which consists of montmorillonite, illite and kaolinite and cominerals thereof such that montmorillonite is present in an amount of at least 5% by weight of the carrier rock; adjusting said suspension so that the dry solids thereof are present in said suspension in an amount of at least 30% by weight; intensely stirring said suspension to homogenize the same; and spray-drying the homogenized suspension though a nozzle having an orifice of 0.8 to 2.5 mm diameter in a gas stream having a temperature of at least 400°C to produce particles of 0.1 to 1.5 mm in diameter.
Claim 7
Dependent Claim
25 words
The process defined in claim 4 wherein the particles of 0.1 to 1.5 mm in diameter are fired at a temperature of 900° to 1300°C.
Claim 8
Dependent Claim
39 words
The process defined in claim 5 wherein said clay mineral is present in an amount of 8 to 20% by weight of the carrier rock and the firing is carried out for a period of 3 to 6 seconds.