Treated biodiesel glycerin

Patent metadata

Field	Value
Publication number	US-9451766-B2
Application number	US-201514886374-A
Country	US
Kind code	B2
Filing date	Oct 19, 2015
Priority date	Mar 2, 2007
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

Disclosed are compositions that include treated biodiesel glycerin. The disclosed compositions may be utilized as soil-amendments for controlling pests, weeds and for enhancing growth of plants. The biodiesel glycerin utilized in the disclosed compositions may be treated by one or more steps including neutralization, heating, refluxing, condensing, and distilling.

First claim

We claim:

1. A soil-amendment composition for enhancing plant growth, the composition comprising:
(a) an effective amount of a treated glycerin composition, wherein the treated glycerin composition is treated by adding a carboxylic acid to a glycerin composition comprising glycerin obtained from vegetable or animal oils or fats, and wherein the treated glycerin composition is further treated by adding a phosphorus-containing acid; and
(b) an effective amount of a glycerin-soluble nitrogen source.

2. The composition of claim 1 , wherein the carboxylic acid is selected from a group consisting of acetic acid, propionic acid, butyric acid, valeric acid, citric acid or a mixture thereof.

3. The composition of claim 1 , wherein the glycerin is obtained from vegetable oils or fats.

4. The composition of claim 1 , wherein the glycerin is obtained from animal oils or fats.

5. The composition of claim 1 , wherein the treated glycerin composition has a pH of about 4.0-8.0.

6. The composition of claim 1 , wherein the treated glycerin composition has a pH of about 4.0-6.8.

7. The composition of claim 1 , wherein the nitrogen source comprises urea.

8. The composition of claim 1 , wherein the phosphorus-containing acid is phosphoric acid.

9. The composition of claim 1 , wherein the phosphorus-containing acid is phosphorous acid.

10. The composition of claim 1 , further comprising assimilable potassium.

11. The composition of claim 1 , further comprising sulfur.

12. The composition of claim 1 , wherein the treated glycerin composition is further treated by adding sulfuric acid.

13. The composition of claim 1 , wherein the treated glycerin composition is further treated by reacting the composition with sodium bisulfate or potassium bisulfate.

14. A method for enhancing plant growth comprising applying the soil-amendment composition of claim 1 to soil.

15. The method of claim 14 , comprising applying the composition at an application rate of about 1 ml/kg soil.

Assignees

• Univ Auburn

Inventors

• Rodriguez-Kabana Rodrigo
• Walker Robert H

Classifications

• C05G3/60

  Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants · CPC title

• C05C9/00

  Fertilisers containing urea or urea compounds · CPC title

• C05B17/00

  Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal · CPC title

• A01N31/02 Primary

  Acyclic compounds · CPC title

• A01N35/02

  containing aliphatically bound aldehyde or keto groups, or thio analogues thereof; Derivatives thereof, e.g. acetals · CPC title