# US 4,394,213 A · Hydroxy-aluminum/lignin sulfonate compositions

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- Number: US 4,394,213 A
- Document ID: US4394213A
- Status: Granted
- Kind: A
- Application number: 06/279,299
- Filed: 1981-07-01
- Granted: 1983-07-19
- Earliest claimed: 1981-07-01
- Assignees: Chevron Research Company
- Inventors: Richard L. Ferm
- Web page: https://patentgrep.com/patent/US4394213A

## CPC

- D21H 17/23: Lignins
- C08L 97/005: {Lignin}
- C09K 17/40: containing mixtures of inorganic and organic compounds
- Y10S 71/903: Soil conditioner
- Y10S 106/90: Soil stabilization
- D21H: PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- C09K: MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A composition comprising salts of lignin sulfonate and hydroxy-aluminum and water. The composition stabilizes soil formations from the effects of water and increases the water resistance of paper products.

## Claims

### Claim 1

A composition comprising about 30% by weight to about 95% by weight water and about 70% by weight to about 5% by weight of a solute, said solute comprising a mixture of a lignin sulfonate salt and a polymeric hydroxy-aluminum salt in a weight ratio of lignin sulfonate to hydroxy-aluminum of from about 1:4 to about 4:1.

### Claim 2 (depends on 1)

The composition according to claim 1 wherein the hydroxy-aluminum salt is selected from the group consisting of hydroxy-aluminum chloride, hydroxy-aluminum nitrate, hydroxy-aluminum sulfate, hydroxy-aluminum acetate, and mixtures thereof.

### Claim 3 (depends on 2)

The composition according to claim 2 wherein the lignin sulfonate salt is selected from the group consisting of ammonium lignin sulfonate, sodium lignin sulfonate, calcium lignin sulfonate, and mixtures thereof.

### Claim 4 (depends on 3)

The composition according to claim 3 wherein the hydroxy-aluminum has the formula Al(OH).sub.n X.sub.3-n where n is from 1.5 to 2.7 and X is the anion of the hydroxy-aluminum salt.

### Claim 5 (depends on 4)

The composition according to claim 4 wherein the ratio of lignin sulfonate:hydroxy-aluminum is from about 1:2 to about 2:1.

### Claim 6 (depends on 1, 5)

The composition according to claim 1 or 5 wherein the composition further comprises up to about 15% by weight based on the total solids content of the solute of a mineral acid.

### Claim 7 (depends on 6)

The composition according to claim 6 wherein the mineral acid is selected from the group consisting of hydrochloric acid, nitric acid, sulfuric acid, and mixtures thereof.

### Claim 8 (depends on 6)

The composition according to claim 6 wherein said composition further comprises soil in an amount of from about 75% by weight to about 95% by weight of the mixture of said composition.

### Claim 9 (depends on 6)

A soil stabilized with the composition according to claim 6.

### Claim 10 (depends on 6)

A method of increasing the water resistance of paper which comprises treating the paper with the composition according to claim 6 for a sufficient time to impart water resistance thereto.

### Claim 11

A method of stabilizing soil surfaces apt to be rewet comprising:
applying a soil stabilizing composition to the soil in an amount of from about 10 to about 25% by weight of the treated soil, said stabilizing composition comprising about 30% to about 95% by weight water and about 70% by weight to about 5% by weight of a solute wherein said solute comprises salts of lignin sulfonate and polymeric hydroxy-aluminum in a ratio of lignin sulfonate to hydroxy-aluminum of from about 1:4 to 4:1.

### Claim 12 (depends on 11)

The method according to claim 11 wherein the soil stabilizing composition further comprises a mineral acid in an amount up to about 15% by weight based on the total solids content of the stabilizing composition.

### Claim 13 (depends on 11, 12)

The method according to claim 11 or 12 wherein said stabilizing composition is applied at a rate of about 0.1 to about 2 gallons of composition per square yard of soil.

### Claim 14

A method of stabilizing a formation penetrated by a well comprising:
injecting a stabilizing composition down said well and into said formation, said composition comprising about 30% by weight to about 95% by weight water and about 70% by weight to 5% by weight of a solute wherein the solute comprises salts of lignin sulfonate and polymeric hydroxy-aluminum in a weight ratio of lignin sulfonate to hydroxy-aluminum of from about 1:4 to 4:1.

### Claim 15 (depends on 14)

The method according to claim 14 wherein said composition is injected in an amount of about 0.5 to about 20 gallons per cubic yard of formation.
