# US 9,434,624 B2 · Compositions and methods for the removal of phosphates and other contaminants from aqueous solutions

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,434,624 B2
- Document ID: US9434624B2
- Status: Granted
- Kind: B2
- Application number: 14/630,876
- Filed: 2015-02-25
- Published: 2015-07-02
- Granted: 2016-09-06
- Earliest claimed: 2012-08-30
- Assignees: NCear Inc.
- Applicants: NClear IP LLC
- Inventors: Steven A. Odom; Denny J. Ivey
- Web page: https://patentgrep.com/patent/US9434624B2

## CPC

- C02F 1/281: {using inorganic sorbents}
- B01J 20/10: comprising silica or silicate
- B01J 20/3078: {Thermal treatment, e.g. calcining or pyrolizing}
- C04B 14/06: Quartz; Sand
- C04B 22/062: {of the alkali or alkaline-earth metals}
- C04B 22/064: {of the alkaline-earth metals}
- C04B 28/18: containing mixtures of the silica-lime type
- C04B 40/024: {Steam hardening, e.g. in an autoclave}
- C02F 1/288: {using composite sorbents, e.g. coated, impregnated, multi-layered}
- C02F 2101/105: {Phosphorus compounds}
- C02F 2101/163: {Nitrates}
- C02F 2101/20: Heavy metals or heavy metal compounds
- C02F 2103/001: {Runoff or storm water}
- C02F 2103/20: from animal husbandry
- C02F 2103/22: from the processing of animals, e.g. poultry, fish, or parts thereof
- C02F 2103/32: from the food or foodstuff industry, e.g. brewery waste waters
- C04B 2111/00189: {Compositions or ingredients of the compositions characterised by analysis-spectra, e.g. NMR}
- Y02P 40/60: Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

Compositions and methods for removing phosphates, nitrates and heavy metals from aqueous solutions.

## Claims

### Claim 1

A composition characterized by an EDS spectrum shown in FIG. 8.

### Claim 2

A composition characterized by an XRD spectrum shown in FIG. 9.

### Claim 3

A composition comprising calcium silicate, calcium hydroxide, sodium chloride, silicon dioxide and calcium carbonate crystal structures characterized by an X-ray diffraction pattern expressed in terms of Bragg angle 2Θ, interplanar spacing, and relative intensity values:
Bragg angle 2Θ
d
Relative intensity
18.1063
4.89532
28.67409
19.8817
4.46199
4.547442
20.8849
4.24989
10.05302
23.1636
3.8367
4.609025
26.6747
3.33912
63.91426
27.4448
3.24714
8.931069
28.7186
3.10595
9.66074
29.3996
3.03554
46.35756
31.6566
2.82407
100
34.2154
2.6185
36.79283
36.037
2.49021
2.083547
39.4625
2.28158
15.03306
41.2618
2.18615
8.137185
43.3281
2.08656
2.265682
45.4881
1.99237
56.2733
47.2604
1.92171
14.82384
47.4848
1.91314
11.70157
48.6166
1.87122
5.406887
50.137
1.81798
9.067216
50.8006
1.79578
13.45406
54.3658
1.68613
6.826049
56.523
1.62679
16.33507
59.9928
1.54073
6.003494
62.7463
1.47958
1.05093
64.2216
1.4491
2.82968
66.2656
1.40927
6.570272
68.2524
1.37301
4.79262
75.3313
1.26058
13.07787
81.4414
1.18074
1.714596
84.0006
1.15116
9.304232
84.7205
1.14321
3.51105
107.4102
0.95571
0.94311
110.036
0.94013
4.214059.