53results about How to "Reactive acidity is low" patented technology

The invention provides a leaching method of a nickel cobalt lithium manganate waste battery positive-negative electrode mixed material, which comprises the following steps: adding a positive-negative electrode mixed material subjected to roasting pretreatment and separated from nickel cobalt lithium manganate waste batteries and vinasse into a pressure-resistant sulfuric-acid/nitric-acid-corrosion-resistant reaction kettle, adding a sulfuric acid-nitric acid mixed solution, and carrying out agitation leaching under sealed conditions.

The invention provides a leaching method of a nickel cobalt lithium manganate waste battery positive electrode material, which comprises the following steps: putting a positive-negative electrode mixed material subjected to roasting pretreatment separated from nickel cobalt lithium manganate waste batteries into a pressure-resistant sulfuric-acid-corrosion-resistant container, pumping sulfuric acid into the container, sealing the container, pumping a Na2SO3 solution into the container by using a filling pump, closing the Na2SO3 solution inlet valve, and leaching.

The invention provides a leaching method of a nickel cobalt lithium manganate waste battery positive-negative electrode mixed material, which comprises the following steps: adding a positive-negative electrode mixed material subjected to roasting pretreatment and separated from nickel cobalt lithium manganate waste batteries and pasture powder into a pressure-resistant sulfuric-acid/nitric-acid-corrosion-resistant reaction kettle, adding a sulfuric acid-nitric acid mixed solution, and carrying out agitation leaching under sealed conditions.

The invention discloses a method for leaching a positive-negative pole material mixture of a waste lithium nickel cobalt manganese oxide battery. The method comprises the steps of adding the positive-negative pole material mixture which is separated from the manganese waste lithium cobalt oxide battery and is subjected to roasting pretreatment, and napier grass powder into a reaction kettle which is resistant to pressure and the corrosion of sulfuric acid and nitric acid, adding a mixed solution of sulfuric acid and nitric acid, and leaching while stirring under closed conditions.

The invention discloses a method for leaching a positive-negative pole material mixture of a waste lithium nickel cobalt manganese oxide battery. The method comprises the steps of adding the positive-negative pole material mixture which is separated from the waste lithium nickel cobalt manganese oxide battery and is subjected to roasting pretreatment, and high-concentration organic wastewater which does not contain benzene-ring substances into a reaction kettle which is resistant to pressure and the corrosion of sulfuric acid and nitric acid, adding a mixed solution of sulfuric acid and nitric acid, and leaching while stirring under closed conditions.

The invention provides a leaching method of a lithium iron phosphate waste battery positive electrode material, which comprises the following steps: putting a positive-negative electrode mixed material subjected to roasting pretreatment separated from lithium iron phosphate waste batteries into a pressure-resistant sulfuric-acid-corrosion-resistant container, pumping sulfuric acid into the container, sealing the container, and introducing SO2 to perform leaching.

The invention provides a leaching method of a lithium iron phosphate waste battery positive electrode material, which comprises the following steps: putting a positive electrode material subjected to roasting pretreatment separated from lithium iron phosphate waste batteries into a pressure-resistant sulfuric-acid-corrosion-resistant container, pumping sulfuric acid into the container, sealing the container, pumping a (NH4)2SO3 solution into the container by using a filling pump, closing the (NH4)2SO3 solution inlet valve, and leaching.

The invention provides a leaching method of a nickel cobalt lithium manganate waste battery positive-negative electrode mixed material, which comprises the following steps: adding a positive-negative electrode mixed material subjected to roasting pretreatment and separated from nickel cobalt lithium manganate waste batteries and ryegrass powder into a pressure-resistant sulfuric-acid/nitric-acid-corrosion-resistant reaction kettle, adding a sulfuric acid-nitric acid mixed solution, and carrying out agitation leaching under sealed conditions.

The invention provides a leaching method of a nickel-cadmium waste battery positive-negative electrode mixed material, which comprises the following steps: adding a positive-negative electrode mixed material subjected to roasting pretreatment separated from nickel-cadmium waste batteries and ryegrass powder into a pressure-resistant sulfuric-acid/nitric-acid-corrosion-resistant reaction kettle, adding a sulfuric acid-nitric acid mixed solution, and carrying out agitation leaching under sealed conditions.

The invention discloses a method for leaching a positive pole material of a waste lithium nickelate battery. The method comprises the steps of putting the positive pole material which is separated from the waste lithium nickelate battery and is subjected to roasting pretreatment into a vessel which is resistant to pressure and the corrosion of sulfuric acid, pumping sulfuric acid into the vessel, then, sealing the vessel, pumping a (NH4) 2SO3 solution into the vessel by using an injection pump, then, closing a (NH4) 2SO3 solution pumping valve, and leaching.

The invention provides a leaching method of a nickel cobalt lithium manganate waste battery positive-negative electrode mixed material, which comprises the following steps: adding a positive-negative electrode mixed material subjected to roasting pretreatment and separated from nickel cobalt lithium manganate waste batteries and wood dust into a pressure-resistant sulfuric-acid/nitric-acid-corrosion-resistant reaction kettle, adding a sulfuric acid-nitric acid mixed solution, and carrying out agitation leaching under sealed conditions.

The invention discloses a method for leaching a positive-negative pole material mixture of a waste nickel-metal hydride battery. The method comprises the steps of adding the positive-negative pole material mixture which is separated from the waste nickel-metal hydride battery and is subjected to roasting pretreatment, and wood sawdust into a reaction kettle which is resistant to pressure and the corrosion of sulfuric acid and nitric acid, adding a mixed solution of sulfuric acid and nitric acid, and leaching while stirring under closed conditions.

The invention discloses a method for leaching a positive pole material of a waste nickel-metal hydride battery. The method comprises the steps of adding the positive pole material which is separated from the waste nickel-metal hydride battery and is subjected to roasting pretreatment, and high-concentration organic wastewater which does not contain benzene-ring substances into a reaction kettle which is resistant to pressure and the corrosion of sulfuric acid and nitric acid, adding a mixed solution of sulfuric acid and nitric acid, and leaching while stirring under closed conditions.

The invention provides a leaching method of a nickel-cadmium waste battery positive-negative electrode mixed material, which comprises the following steps: putting a positive-negative electrode mixed material subjected to roasting pretreatment separated from nickel-cadmium waste batteries into a pressure-resistant sulfuric-acid-corrosion-resistant container, pumping sulfuric acid into the container, sealing the container, and introducing SO2 to perform leaching.