Non-oxidizer particles
AssigneeSolvay SA
InventorsJoerg Clemens, Jürgen H. Rabe
Life of this patent
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Abstract
Particles containing a strong oxidizer (classified as PG I according to the standard test method of the UN Manual of Tests and Criteria, 5th revised Edition, sub-section 34.4.1) and at least one other constituent, the amount and nature of the constituent(s) other than the strong oxidizer in the particles being such that the particles are classified as non-oxidizer according to the standard test method of the UN Manual of Tests and Criteria, 5th revised Edition, sub-section 34.4.1. Process for the production of these particles.
Claims8
A process for the preparation of particles that comprise CaO2, comprising:
- adding hydrogen peroxide to slaked lime to form crystals of CaO2;
- adding at least one other constituent to the slaked lime, the other constituent selected from the group consisting of magnesite and aluminum hydroxide;
- and
- drying the CaO2 crystals;
- wherein the at least one other constituent is added to the slaked lime either before the hydrogen peroxide, or after addition of hydrogen peroxide but before drying the CaO2 crystals, and
- wherein the at least one other constituent is added in an amount effective to render the particles as non-oxidizers.
A process for the preparation of particles that comprise CaO2, comprising:
- adding hydrogen peroxide to slaked lime to form crystals of CaO2;
- adding at least one other constituent to the slaked lime, the other constituent selected from the group consisting of magnesite and aluminum hydroxide;
- and
- drying the CaO2 crystals,
- wherein the at least one other constituent is added to the slaked lime either before the hydrogen peroxide, or after addition of hydrogen peroxide but before drying the CaO2 crystals, and
- wherein the at least one other constituent is added in an amount effective to render the particles to be classified as non-oxidizer according to the standard test method of the UN Manual of Tests and Criteria, 5th revised Edition, sub-section 34.4.1, and,
- wherein the particles have a content of available oxygen between 6.0% and 9.0% by weight.
Dependencies are inferred from the claim text.