Inorganic water-softening bead
AssigneeJ. M. Huber Corporation
InventorsJoseph E. Wagner, III, Lloyd E. Williams
Life of this patent
Estimating the term…
Abstract
An inorganic water-softening bead is disclosed having a density of from 36 to 46 lbs/cu ft consisting of at least 66% of sodium alumino silicate on an anhydrous basis; from 1 to 20% of sodium silicate; from 1 to 20% of a solubilizing agent, such as sodium sulfate; and the remainder being water. The sodium alumino silicate has a silica to aluminum oxide ratio of between 2:1 and 4:1 and a sodium oxide to aluminum oxide ratio of between 0.8:1 and 1:1. The sodium silicate has a silica to sodium oxide ratio of between 1:1 and 3.3:1.
Claims8
A spray dried inorganic water-softening bead consisting of:
- (a) at least 66% by weight of sodium aluminosilicate on an anhydrous basis having a silica to aluminum oxide ratio of between 2:1 and 4:1 and a sodium oxide to aluminum oxide ratio of between 0.8:1 and 1.2:1;
- (b) from 1 to 20% by weight of sodium silicate with a silica to sodium oxide ratio of between 1:1 and 3.3:1;
- (c) from 1 to 20% by weight of a solubilizing agent selected from the group consisting of soluble sodium phosphates, sodium carbonates, sodium bicarbonates, sodium tetraborates and sodium sulfate;
- and
- (d) the remainder being water.
A spray dried inorganic water-softening bead consisting of:
- (a) at least 66% by weight of sodium aluminosilicate on an anhydrous basis having a silica to aluminum oxide ratio of between 2:1 and 4:1 and a sodium oxide to aluminum oxide ratio of between 0.8:1 and 1.2:1;
- (b) from 1 to 20% by weight of sodium silicate with a silica to sodium oxide ratio of about 2.5:1;
- (c) from 1 to 20% by weight of sodium sulfate;
- and
- (d) the remainder being water.
Dependencies are inferred from the claim text.