Patent US4039445A successfully refreshed from Google Patents.
US4039445A
Expired / Lapsed
US
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Matrix of algae and method of making same and method of obtaining uranium from sea water by said matrix
Assignee: Forschungszentrum Jülich
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Filing: 1976-04-06
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Granted: 1977-08-02
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Expires: 1996-04-06
Abstract
Abstract A matrix of algae mutants and method of obtaining thereby uranium from sea water, according to which a matrix is prepared of uranium compatible algae mutants suitable for picking up uranium dissolved in sea water, which matrix is then placed in an area of the sea in which low and high tides pass streams of sea water through the above mentioned matrix.
Inventors
- 👤 Erich-Alexander Heide
- 👤 Maximilian Wald
- 👤 Manfred Paschke
- 👤 Klaus Wagener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:50
CPC Classifications
C; C22; C22B; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/0256; C12; C12N; C12N1/00; C12N1/12; C22B3/00; C22B3/18; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/911; Y10S210/912; Y10S47/00; Y10S47/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
182 words
A method of preparing a matrix comprising in combination mutants for single cell green algae to be cultivated compatible with uranium and suitable for extracting uranium dissolved in sea water, which includes the steps of: introducing the algae into a sterilized nutrient solution adjusted to an acidity of ph 6, and formed of 3.8 grams sea salt, 0.03 grams of NH 4 NO 3 as well as 5ml earth extracts in 100 ml water, introducing in steps into the thus obtained solution uranium in the form of uranylnitrate until the quantity of uranium has been enriched to 250mg/l, subjecting the algae to X-ray radiation at a dose of approximately 50 kR, pouring the algae onto agar plates formed by employing a solution of 3.8 grams sea salt and 0.03 grams of NH 4 NO 3 and 5ml earth extracts in 100 ml water, inoculating the thus forming colonies individually and further cultivating the same in a nutrient solution formed by the solution of 3.8 grams sea salt and 0.03 grams NH 4 NO 3 and 5ml earth extracts in 100 ml water.
Claim 2
Independent Claim
182 words
A method of preparing a matrix comprising in combination mutants for single cell green algae to be cultivated compatible with uranium and suitable for extracting uranium dissolved in sea water, which includes the steps of: introducing the algae into a sterilized nutrient solution adjusted to an acidity of ph 6, and formed of 3.8 grams sea salt, 0.03 grams of NH 4 NO 3 as well as 5ml earth extracts in 100 ml water, introducing in steps into the thus obtained solution uranium in the form of uranylnitrate until the quantity of uranium has been enriched to 250mg/l, subjecting the algae to X-ray radiation at a dose of approximately 50 kR, pouring the algae onto agar plates formed by employing a solution of 3.8 grams sea salt and 0.03 grams of NH 4 NO 3 and 5ml earth extracts in 100 ml water, inoculating the thus forming colonies individually and further cultivating the same in a nutrient solution formed by the solution of 3.8 grams sea salt and 0.03 grams NH 4 NO 3 and 5ml earth extracts in 100 ml water.
Claim 3
Dependent Claim
23 words
A method of extracting uranium from sea water comprising passing uranium-containing sea water through the matrix prepared by the method of claim 1.
Claim 4
Dependent Claim
10 words
A uranium-compatible matrix prepared by the method of claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |