C01D3/22

METHOD FOR PRODUCING SULPHUR-CONTAINING POTASH GRANULES

The invention relates to a method for producing sulphur-containing potash granules from fine-particle, potassium-chloride-containing raw materials and elementary sulphur, and to the sulphur-containing potash granules obtained with this method. The method comprises the following steps a) and b): a) mixing a potassium-chloride-containing, fine-particle raw material with a sulphur melt in a quantity of 2 to 30 wt. %, in particular 3 to 25 wt. %, preferably 5 to 23 wt. % and particularly preferably 8 to 20 wt. % in relation to the total amount of sulphur melt and fine-particle raw material, producing a mixture of fine-particle raw material and molten sulphur; and b) compacting the mixture of fine-particle raw material and molten sulphur obtained in step a). The invention also relates to the use of sulphur melts in the production of potassium chloride granules by compacting a potassium-chloride-containing, fine-particle raw material to reduce the pressing force during compacting, and to the use of sulohur melts to improve the mechanical strength of potash granules, containing potassium chloride, in particular potash granules obtained by compacting a sulphur- and potassium-chloride-containing, fine-particle raw material.

METHOD FOR PRODUCING SULPHUR-CONTAINING POTASH GRANULES

The invention relates to a method for producing sulphur-containing potash granules from fine-particle, potassium-chloride-containing raw materials and elementary sulphur, and to the sulphur-containing potash granules obtained with this method. The method comprises the following steps a) and b): a) mixing a potassium-chloride-containing, fine-particle raw material with a sulphur melt in a quantity of 2 to 30 wt. %, in particular 3 to 25 wt. %, preferably 5 to 23 wt. % and particularly preferably 8 to 20 wt. % in relation to the total amount of sulphur melt and fine-particle raw material, producing a mixture of fine-particle raw material and molten sulphur; and b) compacting the mixture of fine-particle raw material and molten sulphur obtained in step a). The invention also relates to the use of sulphur melts in the production of potassium chloride granules by compacting a potassium-chloride-containing, fine-particle raw material to reduce the pressing force during compacting, and to the use of sulohur melts to improve the mechanical strength of potash granules, containing potassium chloride, in particular potash granules obtained by compacting a sulphur- and potassium-chloride-containing, fine-particle raw material.

CHEMICAL TREATMENT FOR PREPARING METAL ELECTRODES
20230101833 · 2023-03-30 ·

The present disclosure relates to chemical treatments for preparing metal electrodes, including ex-situ chemical treatments for preparing metal electrodes and to ex-situ chemically treated metal electrodes, which can be used in electrochemical cells. The present disclosure also relates to methods for forming a metal fluoride-based layer (e.g. a SEI fluoride layer) on a metal or an electrode thereof comprising an ex-situ chemical treatment of the metal or electrode thereof, and to electrochemical cells comprising the ex-situ chemically treated metal electrodes.

CHEMICAL TREATMENT FOR PREPARING METAL ELECTRODES
20230101833 · 2023-03-30 ·

The present disclosure relates to chemical treatments for preparing metal electrodes, including ex-situ chemical treatments for preparing metal electrodes and to ex-situ chemically treated metal electrodes, which can be used in electrochemical cells. The present disclosure also relates to methods for forming a metal fluoride-based layer (e.g. a SEI fluoride layer) on a metal or an electrode thereof comprising an ex-situ chemical treatment of the metal or electrode thereof, and to electrochemical cells comprising the ex-situ chemically treated metal electrodes.

Process for producing potassium chloride granulates

A method for producing potassium chloride granulates from a crystalline potassium chloride raw material. The potassium chloride raw material is treated, prior to granulation, with at least one alkali metal carbonate and at least one phosphate additive selected from alkali metal monophosphates, alkali metal pyrophosphates, linear alkali metal polyphosphates and mixtures thereof, in the presence of water.

Process for producing potassium chloride granulates

A method for producing potassium chloride granulates from a crystalline potassium chloride raw material. The potassium chloride raw material is treated, prior to granulation, with at least one alkali metal carbonate and at least one phosphate additive selected from alkali metal monophosphates, alkali metal pyrophosphates, linear alkali metal polyphosphates and mixtures thereof, in the presence of water.

Method for producing potassium chloride granular materials

A method for producing potassium chloride granular materials from a crystalline potassium chloride raw material, wherein, before the granulation process, the potassium chloride raw material is treated with at least one alkali metal carbonate and at least one metaphosphate additive in the presence of water.

Method for producing potassium chloride granular materials

A method for producing potassium chloride granular materials from a crystalline potassium chloride raw material, wherein, before the granulation process, the potassium chloride raw material is treated with at least one alkali metal carbonate and at least one metaphosphate additive in the presence of water.

Method for producing potassium chloride granular material

A method for producing potassium chloride granular materials from a crystalline potassium chloride raw material, wherein, before the granulation process, the potassium chloride raw material is treated with at least one alkali metal carbonate and at least one hydrogen phosphate additive in the presence of water. The alkali metal carbonate is anhydrous sodium carbonate, sodium carbonate monohydrate or sodium carbonate decahydrate.

Method for producing potassium chloride granular material

A method for producing potassium chloride granular materials from a crystalline potassium chloride raw material, wherein, before the granulation process, the potassium chloride raw material is treated with at least one alkali metal carbonate and at least one hydrogen phosphate additive in the presence of water. The alkali metal carbonate is anhydrous sodium carbonate, sodium carbonate monohydrate or sodium carbonate decahydrate.