US3023169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treatment compositions and processes for their production and use
Assignee: ChampionX LLC
•
Filing: 1959-02-09
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Granted: 1962-02-27
•
Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 Alfred O Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/5236
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
75 words
A SOLID GRANULAR WATER TREATMENT COMPOSITION CONSISTING ESSENTIALLY OF FROM 74% TO 85% BY WEIGHT OF SODIUM ALUMINATE, AND IMPURITIES CONSISTING OF WATER INSOLUBLE RESIDUES OF THE REACTION BETWEEN AN ALKALI METAL HYDROXIDE AND BAUXITE ORE, WHICH RESIDUES ARE COMMONLY CALLED RED MUD, SAID IMPURITIES BEING FINELY DIVIDED SO THAT AT LEAST 80% OF THE PARTICLES ARE OF COLLOIDAL SIZE, SAID TOTAL COMPOSITION HAVING AN NA2O TO AL2O3 MOLAR RATIO OF FROM 1.11:1 TO 1.25:1.
Claim 2
Dependent Claim
75 words
A SOLID GRANULAR WATER TREATMENT COMPOSITION CONSISTING ESSENTIALLY OF FROM 74% TO 85% BY WEIGHT OF SODIUM ALUMINATE, AND IMPURITIES CONSISTING OF WATER INSOLUBLE RESIDUES OF THE REACTION BETWEEN AN ALKALI METAL HYDROXIDE AND BAUXITE ORE, WHICH RESIDUES ARE COMMONLY CALLED RED MUD, SAID IMPURITIES BEING FINELY DIVIDED SO THAT AT LEAST 80% OF THE PARTICLES ARE OF COLLOIDAL SIZE, SAID TOTAL COMPOSITION HAVING AN NA2O TO AL2O3 MOLAR RATIO OF FROM 1.11:1 TO 1.25:1.
Claim 3
Dependent Claim
127 words
THE PROCESS OF PRODUCING A WATER TREATMENT CHEMICAL FROM BAUXITE WHICH COMPRISES THE STEPS OF HEATING A 45% TO 70% BY WEIGHT SOLUTION OF AN ALKALI METAL HYDROXIDE TO A TEMPERATURE OF AT LEAST 275*F., ADDING THERETO WITH AGITATION A BAUXITE WHICH CONTAINS AT LEAST 57% BY WEIGHT OF ALUMINA TO PRODUCE A REACTION MASS HAVING AN NA2O TO AL2O3 RATIO BETWEEN 1,11:1 AND 1.25:1, CONTINUING THE PROCESS WHEREBY THE ALUMINA PRESENT IN THE BAUXITE IS SUBSTANTIALLY CONVERTED TO SODIUM ALUMINATE AND THE WATER INSOLUBLE RESIDUAL PRODUCTS OF SAID REACTION ARE UNIFORMLY SUSPENDED THROUGHOUT THE REACTION MASS, ADJUSTING THE SPECIFIC GRAVITY OF THE REACTION MASS TO BETWEEN 1.600 AND 1.850, AND THEN DRYING THE RESULTANT PRODUCT TO A MOISTURE CONTENT OF NOT MORE THAN 2.0% BY WEIGHT.
Claim 4
Dependent Claim
127 words
THE PROCESS OF PRODUCING A WATER TREATMENT CHEMICAL FROM BAUXITE WHICH COMPRISES THE STEPS OF HEATING A 45% TO 70% BY WEIGHT SOLUTION OF AN ALKALI METAL HYDROXIDE TO A TEMPERATURE OF AT LEAST 275*F., ADDING THERETO WITH AGITATION A BAUXITE WHICH CONTAINS AT LEAST 57% BY WEIGHT OF ALUMINA TO PRODUCE A REACTION MASS HAVING AN NA2O TO AL2O3 RATIO BETWEEN 1,11:1 AND 1.25:1, CONTINUING THE PROCESS WHEREBY THE ALUMINA PRESENT IN THE BAUXITE IS SUBSTANTIALLY CONVERTED TO SODIUM ALUMINATE AND THE WATER INSOLUBLE RESIDUAL PRODUCTS OF SAID REACTION ARE UNIFORMLY SUSPENDED THROUGHOUT THE REACTION MASS, ADJUSTING THE SPECIFIC GRAVITY OF THE REACTION MASS TO BETWEEN 1.600 AND 1.850, AND THEN DRYING THE RESULTANT PRODUCT TO A MOISTURE CONTENT OF NOT MORE THAN 2.0% BY WEIGHT.
References Cited (Backward Citations)
US1620332A
Cited
US2159843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |