US4424194A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for extraction of metals from leachable ores and forming of building materials
Assignee: Individual
•
Filing: 1982-01-04
•
Granted: 1984-01-03
•
Expires: 2002-01-04
Abstract
Abstract The method for extraction of precious metals from leachable ores and forming a building materials which includes the steps of crushing a quantity of leachable ore into a powder of substantially uniform particle size, mixing with a quantity of a binding material and mixing with a leaching material. The materials are then formed into a masonry building construction article having at least one passage therein. A plurality of the masonry building construction articles are stacked with at least some of the passages disposed therein in generally parallel flow paths and a solvent is passed through the passages of the masonry building construction articles.
Inventors
- 👤 Robert M. Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:45
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/53; C04B38/00; C04B38/04; C22; C22B; C22B11/00; C22B11/08; C22B3/00; C22B3/04; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S264/00; Y10S264/31
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
117 words
The method which comprises the steps of: crushing a quantity of leachable ore into a powder of substantially uniform particle size; mixing with a quantity of a binding material; mixing with a leaching material; forming into a masonry building construction article having at least one passage therein such that the quantity of the binding material is sufficient to impart adequate structural strength to the article; stacking a plurality of said masonry building construction articles with at least some of said passages disposed therein in generally parallel flow paths; passing a solvent through the passages of the masonry building construction articles to extract and recover metal values from the ore and thereafter recovering the by-product formed construction articles.
Claim 2
Independent Claim
117 words
The method which comprises the steps of: crushing a quantity of leachable ore into a powder of substantially uniform particle size; mixing with a quantity of a binding material; mixing with a leaching material; forming into a masonry building construction article having at least one passage therein such that the quantity of the binding material is sufficient to impart adequate structural strength to the article; stacking a plurality of said masonry building construction articles with at least some of said passages disposed therein in generally parallel flow paths; passing a solvent through the passages of the masonry building construction articles to extract and recover metal values from the ore and thereafter recovering the by-product formed construction articles.
Claim 3
Dependent Claim
26 words
The method as described in claim 1, wherein: said stacking step includes orienting parallel arrays of articles with passages in each array disposed in registered relationship.
Claim 4
Dependent Claim
15 words
The method as described in claim 2, wherein: said masonry construction article is a brick.
Claim 5
Dependent Claim
16 words
The method as described in claim 2, wherein: said masonry construction article is a cylindrical member.
Claim 6
Dependent Claim
35 words
The method as described in claim 4, wherein: said method further includes the step of splitting said cylindrical member along a plane extending through the geometric axis of said cylindrical object to form spanish tile.
Claim 7
Dependent Claim
19 words
The method as described in claim 1, 2, 3, 4 or 5, wherein: said flow paths are generally vertical.
Claim 8
Dependent Claim
19 words
The method as described in claim 1, 2, 3, 4 or 5, wherein: said flow paths are generally horizontal.
Claim 9
Independent Claim
18 words
The method as described in claims 1, 2, 3, 4 or 5, wherein: said binding agent is cement.
Claim 10
Independent Claim
18 words
The method as described in claims 1, 2, 3, 4 or 5, wherein: said binding agent is lime.
Claim 11
Dependent Claim
24 words
The method as described in claim 1, wherein: the quantity of the binding material which comprises cement is about 9 to 10 weight percent.
Claim 12
Dependent Claim
32 words
The method as described in claim 1, wherein: said method includes, after the forming step, heating the plurality of said masonry building construction particles such that the rate of curing is accelerated.
References Cited (Backward Citations)
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Cited
US1907170A
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CA975927A
Cited
US3856927A
Cited
US3985567A
Cited
US4256706A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |