IP Library Granted Patent US 7,275,643
Granted Patent B2
US 7,275,643 · App. 11/203,919 · Granted Oct 2, 2007

Environmentally safe promoter for use in flotation separation of carbonates from minerals

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Quick Facts
Patent No.
US 7,275,643
App. No.
11/203,919
Granted
Oct 2, 2007
Kind
B2
Abstract

An environmentally safe composition of matter for use as a promoter chemical in flotation separation of carbonates from industrial sand is disclosed. The promoter chemical replaces the standard petroleum sulfonate, glycol ether and nonphenol used in promoter chemicals with biodegradable substitutes permitting the waste from flotation separation to be disposed without fear of contamination of ground water. The biodegradable promoter is technically sound and causes little change to the flotation process.

Claims (8)

1. A composition of matter, for use as a promoter in flotation separation of carbonates from minerals comprising a mixture of Tall Oil/Fatty Acid, Linseed Oil and an additional alcohol 2-ethylhexane.

2. The composition of matter of claim 1 wherein the ranges of said individual constituents of the composition are:

Tall Oil/Fatty Acid between 50 and 95 percent,

Linseed Oil between 50 and 5 percent, and

2-ethylhexane between 1 and 5 percent.

3. A composition of matter, for use as a promoter in flotation separation of carbonates from minerals, comprising a mixture of Tall Oil/Fatty Acid and Linseed Oil wherein the ranges of said individual constituents of the composition are 50-95 percent Tall Oil/Fatty Acid and 50-5 percent Linseed Oil and wherein the rosin content of said Tall Oil/Fatty Acid ranges between 0 and 15 percent and wherein sodium silicate is added for suppression of the flotation of silica.

4. The composition of matter of claim 3 wherein 2-ethylheaxane alcohol is added within the range 1-5 percent.

5. The composition of matter of claim 3 to which a coupler is added for the suppression of stratification.

Assignments (16)
SECURITY INTEREST Recorded Mar 31, 2025
From: COVIA SOLUTIONS LLC; COVIA HOLDINGS LLC
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 070681/0759 →
RELEASE OF SECURITY INTEREST Recorded Feb 26, 2025
From: PNC BANK, NATIONAL ASSOCIATION
To: COVIA SOLUTIONS INC.; COVIA HOLDINGS LLC
Reel/Frame 070343/0973 →
CORPORATE CONVERSION Recorded Jan 31, 2025
From: COVIA SOLUTIONS INC.
To: COVIA SOLUTIONS LLC
Reel/Frame 070077/0320 →
CHANGE OF NAME Recorded Jan 31, 2025
From: FAIRMOUNT SANTROL INC.
To: COVIA SOLUTIONS INC.
Reel/Frame 070079/0704 →
SECURITY INTEREST Recorded Dec 27, 2021
From: COVIA SOLUTIONS INC.; COVIA HOLDINGS LLC
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 058581/0517 →
SECURITY INTEREST Recorded Jan 29, 2021
From: COVIA HOLDINGS LLC (FORMERLY COVIA HOLDINGS CORPORATION)
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 055173/0660 →
RELEASE OF SECURITY INTEREST Recorded Jan 1, 2021
From: WILMINGTON SAVINGS FUND SOCIETY, FSB
To: COVIA HOLDINGS LLC (FORMERLY COVIA HOLDINGS CORPORATION)
Reel/Frame 054886/0318 →
SECURITY INTEREST Recorded Oct 19, 2020
From: BARCLAYS BANK PLC
To: WILMINGTON SAVINGS FUND SOCIETY, FSB
Reel/Frame 054113/0352 →
SECURITY INTEREST Recorded Aug 27, 2018
From: COVIA HOLDINGS CORPORATION; FAIMOUNT SANTROL INC.; TECHNISAND, INC.; SELF-SUSPENDING PROPPANT LLC
To: BARCLAYS BANK PLC, AS COLLATERAL AGENT
Reel/Frame 047320/0483 →
RELEASE OF SECURITY INTEREST Recorded Jun 9, 2018
From: BARCLAYS BANK PLC
To: FAIRMOUNT SANTROL, INC.
Reel/Frame 046036/0619 →
RELEASE OF SECURITY INTEREST Recorded Jun 9, 2018
From: PNC BANK, NATIONAL ASSOCIATION
To: FAIRMOUNT SANTROL INC.
Reel/Frame 046036/0699 →
SECURITY INTEREST Recorded Nov 6, 2017
From: FAIRMOUNT SANTROL INC.; SELF-SUSPENDING PROPPANT LLC; TECHNISAND, INC.
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 044040/0380 →
SECURITY INTEREST Recorded Nov 2, 2017
From: FAIRMOUNT SANTROL INC.
To: BARCLAYS BANK PLC
Reel/Frame 044014/0757 →
RELEASE OF SECURITY INTEREST IN PATENTS FILED AT R/F 024804/0940 Recorded Nov 1, 2017
From: BARCLAYS BANK PLC
To: FAIRMOUNT SANTROL INC. (F/K/A FAIRMOUNT MINERALS, LTD.)
Reel/Frame 044348/0220 →
CHANGE OF NAME Recorded Oct 17, 2014
From: FAIRMOUNT MINERALS, LTD.
To: FAIRMOUNT SANTROL INC.
Reel/Frame 034013/0803 →
PATENT SECURITY AGREEMENT Recorded Aug 9, 2010
From: FAIRMOUNT MINERALS, LTD.
To: BARCLAYS BANK PLC, AS COLLATERAL AGENT
Reel/Frame 024804/0940 →