US3386768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mining and refining soluble minerals
Assignee: Akzo Nobel Salt Inc
•
Filing: 1966-09-29
•
Granted: 1968-06-04
•
Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 Charles H Jacoby
- 👤 Kurt F Peyfuss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:48
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/28; E21B43/281; Y; Y10; Y10S; Y10S159/00; Y10S159/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
THE METHOD OF CONCOMITANTLY MINING AND BENEFICIATING A DEEP UNDERGROUND HIGH-TEMPERATURE DEPOSIT OF SOLUBLE MINERAL INCLUDING IMPURITIES DISPOSED AT SUCH DEPTH BENEATH THE EARTH''S SURFACE AS TO BE SURROUNDED BY A HIGH-TEMPERATURE GEOLOGICAL ENVIRONMENT COMPARED TO THE NEIGHBORHOOD EARTH SURFACE ROCK TEMPERATURE, TO PRODUCE A RELATIVELY PURE MINERAL PRODUCT AT THE RELATIVELY LOW EARTH SURFACE AMBIENT TEMPERATURES, SAID METHOD COMPRISING, FORMING A PAIR OF OPENINGS EXTENDING DOWNWARDLY IN LATERALLY OFFSET RELATION FROM THE EARTH''S SURFACE INTO SAID DEPOSIT, PUMPING A SOLVENT LIQUID DOWNWARDLY THROUGH ONE OF SAID OPENINGS IN DIRECT HEAT-EXCHANGE RELATION WITH THE AMBIENT GEOLOGY THEREBY HEATING SAID SOLVENT TO AN ELEVATED TEMPERATURE, AND THEN DIRECTING SAID HEATED SOLVENT TO PASS IN DISSOLUTION-CONTACT RELATION THROUGH SAID HIGH-TEMPERATURE MINERAL TO PROVIDE A HIGHLY CONCENTRATED HIGH-TEMPERATURE MINERAL TO PROVIDE A MINERAL, AND THENCE TO FLOW UPWARDLY THROUGH THE OTHER OF SAID OPENINGS TO A TREATING PLANT OPERATING UNDER SUBSTANTIALLY EARTH''S SURFACE TEMPERATURE AND PRESSURE CONDITIONS, FOR SEPARATION OF PURIFIED MINERAL FROM THE IMPURITIES IN SAID SOLUTION, WHILE SIMULTANEOUSLY CIRCULATING IN HEAT-EXCHANGE RELATION WITH SAID UPFLOWING MINERAL SOLUTION A HEATTRANSFER FLUID FLOWING IN A CLOSED CONDUIT SYSTEM INCLUDING A HEATER, WHEREBY TO AVOID MIXING WITH SAID SOLUTION AND TO MAINTAIN SAID SOLUTION AT A PRE-
Claim 2
Independent Claim
203 words
THE METHOD OF CONCOMITANTLY MINING AND BENEFICIATING A DEEP UNDERGROUND HIGH-TEMPERATURE DEPOSIT OF SOLUBLE MINERAL INCLUDING IMPURITIES DISPOSED AT SUCH DEPTH BENEATH THE EARTH''S SURFACE AS TO BE SURROUNDED BY A HIGH-TEMPERATURE GEOLOGICAL ENVIRONMENT COMPARED TO THE NEIGHBORHOOD EARTH SURFACE ROCK TEMPERATURE, TO PRODUCE A RELATIVELY PURE MINERAL PRODUCT AT THE RELATIVELY LOW EARTH SURFACE AMBIENT TEMPERATURES, SAID METHOD COMPRISING, FORMING A PAIR OF OPENINGS EXTENDING DOWNWARDLY IN LATERALLY OFFSET RELATION FROM THE EARTH''S SURFACE INTO SAID DEPOSIT, PUMPING A SOLVENT LIQUID DOWNWARDLY THROUGH ONE OF SAID OPENINGS IN DIRECT HEAT-EXCHANGE RELATION WITH THE AMBIENT GEOLOGY THEREBY HEATING SAID SOLVENT TO AN ELEVATED TEMPERATURE, AND THEN DIRECTING SAID HEATED SOLVENT TO PASS IN DISSOLUTION-CONTACT RELATION THROUGH SAID HIGH-TEMPERATURE MINERAL TO PROVIDE A HIGHLY CONCENTRATED HIGH-TEMPERATURE MINERAL TO PROVIDE A MINERAL, AND THENCE TO FLOW UPWARDLY THROUGH THE OTHER OF SAID OPENINGS TO A TREATING PLANT OPERATING UNDER SUBSTANTIALLY EARTH''S SURFACE TEMPERATURE AND PRESSURE CONDITIONS, FOR SEPARATION OF PURIFIED MINERAL FROM THE IMPURITIES IN SAID SOLUTION, WHILE SIMULTANEOUSLY CIRCULATING IN HEAT-EXCHANGE RELATION WITH SAID UPFLOWING MINERAL SOLUTION A HEATTRANSFER FLUID FLOWING IN A CLOSED CONDUIT SYSTEM INCLUDING A HEATER, WHEREBY TO AVOID MIXING WITH SAID SOLUTION AND TO MAINTAIN SAID SOLUTION AT A PRE-
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |