IP Library › Granted Patent US 9,096,787
Granted Patent B2
US 9,096,787 · App. 14/089,054 · Granted Aug 4, 2015

Corrosion inhibiting, freezing point lowering compositions

Inventors: Stephen Rowley (Lolo, MT); David Wilkening (Ronan, MT); Richard D. Shirley (Missoula, MT); Tyler N. Smith (Missoula, MT)
Assignee: Rivertop Renewables
C09K3/185C09K3/18
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Quick Facts
Patent No.
US 9,096,787
App. No.
14/089,054
Granted
Aug 4, 2015
Kind
B2
Abstract

The present invention relates to corrosion inhibiting, freeze point lowering compositions comprising a mixture of a freeze point lowering agent and a corrosion inhibiting compound. The corrosion inhibiting, freeze point lowering compositions can be used in deicing brines or deicing solutions.

Claims (6)

1. A corrosion inhibiting composition stable to cold storage temperatures below about 15° F., the composition comprising: a mixture of water, a freeze point lowering agent and a corrosion inhibiting compound, wherein the freeze point lowering agent is potassium chloride, ammonium chloride, lithium chloride, potassium acetate, ammonium acetate, lithium acetate, potassium nitrate, ammonium nitrate, lithium nitrate or mixtures thereof and the corrosion inhibiting compound is sodium gluconate, wherein said composition is stable to cold storage temperatures at or below about 15° F.; wherein the composition comprises about 25% by weight to about 40% by weight of the corrosion inhibiting compound.

2. The corrosion inhibiting, freeze point lowering composition of claim 1 , wherein the composition comprises about 1% by weight to about 50% by weight of a freeze point lowering agent.

3. The corrosion inhibiting, freeze point lowering composition of claim 1 , wherein the freeze point lowering agent is potassium chloride, ammonium chloride, lithium chloride, potassium nitrate, ammonium nitrate, lithium nitrate or mixtures thereof.

4. The corrosion inhibiting, freeze point lowering composition of claim 1 , wherein the freeze point lowering agent is potassium acetate, ammonium acetate, lithium acetate or mixtures thereof.

5. The corrosion inhibiting, freeze point lowering composition of claim 1 , the composition comprising, by weight, about 2% to about 10% potassium chloride, and about 34% sodium gluconate.

6. The corrosion inhibiting, freeze point lowering composition of claim 1 , the composition comprising, by weight, about 2% to about 10% ammonium chloride, and about 34% sodium gluconate.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S NAME PREVIOUSLY RECORDED AT REEL: 035725 FRAME: 0292. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Feb 5, 2016
From: PRESTA, KYLIE; ROWLEY, STEPHEN; WILKENING, DAVID; SHIRLEY, RICHARD D.; CREGO, BRIAN; SMITH, TYLER N.
To: RIVERTOP RENEWABLES, INC.
Reel/Frame 037703/0835 →
SECURITY INTEREST Recorded Jun 3, 2015
From: RIVERTOP RENEWABLES, INC.
To: SILICON VALLEY BANK
Reel/Frame 035777/0764 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 27, 2015
From: PRESTA, KYLIE; ROWLEY, STEPHEN; WILKENING, DAVID; SHIRLEY, RICHARD D.; CREGO, BRIAN; SMITH, TYLER N.
To: RIVERTOP RENEWABLES
Reel/Frame 035725/0292 →
Continuity (2)
Provisional Application 61730673 · Nov 28, 2012
Related Publication 20140312262A1 · Oct 23, 2014