Beneficiation of saline minerals
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 25, 2000
Issued Date -
N/A
app pub date -
Jul 3, 1997
filing date -
May 25, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A process is provided for recovering a saline mineral from an ore containing the saline mineral and impurities. In one aspect, the process generally includes the steps of separating a first portion of impurities from the ore by density separation, electrostatically separating a second portion of impurities from the ore, and magnetically separating a third portion of impurities from the ore. The process can further include the steps of crushing the ore and dividing the crushed ore into a plurality of size fractions before the above-referenced separating steps. In another aspect, the process includes the steps of calcining the ore and subsequently separating a first portion of impurities by density separation. Indirect heating may be utilized for the calcining process and, preferably, calcining gases are recycled and utilized for heating fluidizing another portion of ore. Water vapor may be condensed from the calcining gas and utilized for other purposes.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
TRONOX ALKALI WYOMING CORPORATION | ONE STAMFORD PLAZA 263 TRESSER BOULEVARD SUITE 1100 STAMFORD CT 06901 |
International Classification(s)

- 1997 Application Filing Year
- B03B Class
- 52 Applications Filed
- 27 Patents Issued To-Date
- 51.93 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Denham, Dale L | Louisville, CO | 1 | 5 |
# of filed Patents : 1 Total Citations : 5 | |||
Moore, Allen H | Parker, CO | 1 | 5 |
# of filed Patents : 1 Total Citations : 5 | |||
Schmidt, Roland | Lakewood, CO | 176 | 1809 |
# of filed Patents : 176 Total Citations : 1809 | |||
Tacoma, Ralph B | Green River, WY | 2 | 8 |
# of filed Patents : 2 Total Citations : 8 | |||
Turner, Allan L | Lakewood, CO | 10 | 183 |
# of filed Patents : 10 Total Citations : 183 |
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Patent Citation Ranking
- 5 Citation Count
- B03B Class
- 10 % this patent is cited more than
- 25 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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