Solid Glyphosate Formulation with Acid-Salt Mixture
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Solution Overview
Problem
Current glyphosate formulations have limitations in achieving high loadings of glyphosate acid equivalent, requiring complex handling and compatibility issues with alkali and surfactants, and critical order and rate of addition for effective herbicidal activity.
Innovation Solution
A solid glyphosate formulation comprising glyphosate acid and agriculturally acceptable salts in admixture, with a mole ratio of glyphosate acid to total glyphosate moieties of at least 10%, allowing for higher loadings and ease of dissolution, eliminating the need for separate alkali compositions and simplifying the application process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If glyphosate formulations use only glyphosate salts to achieve high loadings, then glyphosate acid equivalent loading is limited to around 72%, but formulation complexity and handling difficulties increase due to requirements for separate alkali compositions and critical order/rate of addition
Solution Approach 1:
The patent combines glyphosate acid and glyphosate salts in a single formulation, eliminating the need for separate alkali compositions. This merging of components simplifies the formulation structure while achieving higher glyphosate acid equivalent loadings of at least 73%, resolving the contradiction between loading quantity and formulation complexity.
Solution Approach 2:
The patent changes the compositional parameters by incorporating both acid and salt forms of glyphosate in specific proportions (mole ratio of acid to total glyphosate moieties being at least 10%). This parameter change enables higher effective loading while simplifying handling by eliminating critical order and rate of addition requirements.
2Quantity of substance
If glyphosate formulations use only glyphosate salts, then loading is limited, but handling convenience deteriorates due to critical order and rate of addition requirements
Solution Approach 1:
By merging glyphosate acid and salt components into a single formulation, the patent eliminates the need for separate addition steps and critical order/rate control, thereby improving handling convenience while achieving higher loadings of at least 73% glyphosate acid equivalent.
Solution Approach 2:
The formulation is designed to be self-sufficient, containing all necessary components (acid, salt, and adjuvants) in the correct proportions. This self-service design eliminates the need for complex application procedures and critical control parameters, improving ease of operation.
3Quantity of substance
If glyphosate acid and salts are mixed in admixture with mole ratio of acid to total glyphosate moieties of at least 10%, then higher loadings are achieved, but dissolution properties must be maintained
Solution Approach 1:
The patent optimizes the compositional parameters by controlling the mole ratio of glyphosate acid to total glyphosate moieties to be at least 10%. This parameter optimization achieves higher loadings of at least 73% while maintaining dissolution properties through the synergistic combination of acid and salt forms.
Solution Approach 2:
The formulation uses a composite structure combining glyphosate acid and glyphosate salts in specific proportions, along with adjuvants. This composite material approach enables high loading while maintaining dissolution properties through the complementary characteristics of the different components.
4Ease of operation
If fully formulated solid compositions are developed with high loading, then convenience for farmers is improved, but manufacturing complexity increases due to need for adjuvant compatibility
Solution Approach 1:
The patent merges all necessary components including glyphosate acid, salts, and adjuvants into a single fully formulated solid composition. This eliminates the need for separate mixing steps by the farmer, improving convenience while the integrated formulation approach manages manufacturing complexity through comprehensive compatibility testing.
Solution Approach 2:
The formulation is designed as a universal, multi-functional product that combines herbicidal activity (through acid and salt components) and adjuvant functions (through surfactants and other additives) in a single package. This multi-functionality improves farmer convenience by eliminating separate product applications.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The formulation achieves higher glyphosate acid equivalent loadings, simplifies handling, and ensures effective herbicidal activity without critical order or rate of addition requirements, providing enhanced convenience and performance.
Implementation Method 1
the acid form is precipitated from the reaction mixture and the resulting wet cake is reacted with an appropriate base to form a water soluble salt
Implementation Method 2
The reaction product dissolves readily and completely in water
Data Source
AI summary
The present invention provides a solid glyphosate formulation comprising glyphosate acid and further comprising at least one agriculturally acceptable salt of glyphosate, wherein the glyphosate acid and the at least one glyphosate salt are in admixture and wherein the mole ratio of glyphosate acid to total glyphosate moieties in the formulation is at least 10%. Methods of preparing said formulations are also provided. The present invention further provides a method of removing unwanted foliage comprising administering a diluted form of a formulation according to the present invention.