Co-precipitation reactor

• US 10,710,048 B2
• Filed: 12/26/2018
• Issued: 07/14/2020
• Est. Priority Date: 01/03/2018
• Status: Active Grant

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Kim, Hyun Uk, Kim, Seong Bae, Moon, Chang Jun, Lim, Yi Rang, Park, Kyoung Wan, Kim, Eun Hee
• Primary Examiner(s): Nguyen, Huy Tram
• Application Number:
  US16/478,691
• Publication Number:
  US 20200047147A1
• Time in Patent Office: 566 Days
• Field of Search: 422129
• CPC Class Codes: B01D 2201/12 Pleated filters
• CPC Class Codes: B01D 29/333 with corrugated, folded filtering elements
• CPC Class Codes: B01D 29/68 with backwash arms, shoes or nozzles
• CPC Class Codes: B01D 35/02 Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks, B01D35/05 takes precedence; water pipe system filters E03B3/18, E03B7/07; dirt catchers in sewers E03F; filters or strainers for pipe-lines in general B08B, E03F; object or dirt catching devices in sinks or the like E03C1/26; suction strainers or filters for pumps F04B53/005, F04D29/70
• CPC Class Codes: B01J 19/18 Stationary reactors having moving elements inside B01J19/08, B01J19/26 take precedence

Abstract

A co-precipitation reactor with a continuous filtering system mounted, wherein the co-precipitation reactor includes a main body accommodating a reactant for reaction therein, an input unit inputting the reactant into the main body, and a filter unit installed in the main body to filter a precursor of the precursor generated by reacting with the reactant in the main body and a reaction solution.

Claims

1. A co-precipitation reactor comprising:

a main body accommodating a reactant for reaction therein;

an input unit inputting the reactant into the main body; and

a filter unit installed in the main body to filter a precursor of the precursor generated by reacting with the reactant in the main body and a reaction solution,

wherein the filter unit is provided in plurality so as to be spaced apart from each other,

wherein each of the plurality of filter units comprises a filter so as to provide a plurality of filters, and wherein the filters have different pore sizes.

2. The co-precipitation reactor of claim 1, wherein the main body comprises a drain part for discharging the precursor within the main body to the outside.

3. The co-precipitation reactor of claim 2, wherein the drain part is formed on one or more of a lower portion of the main body or an upper circumferential portion of the main body.

4. The co-precipitation reactor of claim 1, wherein the main body comprises an impeller part for mixing the reactants within the main body at a central portion of the inside thereof.

5. The co-precipitation reactor of claim 4, wherein the impeller part is fixed to an upper end of the main body, and

the input unit is provided in plurality on the upper end of the main body so as to be disposed around the impeller part.

6. The co-precipitation reactor of claim 1;

and

wherein the filter unit comprises a flow tube formed to be connected to the filter, extending to the outside of the main body, and discharging the reaction solution, from which the precursor is filtered by the filter, to the outside.

7. The co-precipitation reactor of claim 6, further comprising a collection tank communicating with the flow tube to collect the reaction solution discharged into the flow tube.

8. The co-precipitation reactor of claim 7, further comprising a vacuum pump communicating with the collection tank to drain the reaction solution within the main body from the flow tube to the collection tank.

9. The co-precipitation reactor of claim 8, further comprising a control unit controlling an operation of the vacuum pump.

10. The co-precipitation reactor of claim 6, further comprising an injection unit communicating with the flow tube to inject an inert material into the filter through the flow tube.

11. The co-precipitation reactor of claim 10, wherein the inert material injected from the injection unit into the filter detaches the precursor adhering to the filter.

12. The co-precipitation reactor of claim 10, wherein the inert material comprises an inert gas or an inert liquid.

13. The co-precipitation reactor of claim 10, further comprising a control unit controlling an operation of the injection unit.

14. The co-precipitation reactor of claim 6, wherein the filter comprises a pleated filter.

15. The co-precipitation reactor of claim 6, wherein the filter is made of a stainless steel (SUS) material.

16. The co-precipitation reactor of claim 13, wherein the filters operate in an order from a filter having a relatively small pore size to a filter having a relatively large pore size according to an operation time preset by the control unit.

17. The co-precipitation reactor of claim 16, wherein the preset operation time is differently set according to the pore sizes of the plurality of filters, and

as the pore size increases, the preset operation time increases.

18. The co-precipitation reactor of claim 16, wherein, in the filter formed in each of the plurality of filter units, when one filter operates by the control unit, operations of other filters are stopped.

19. The co-precipitation reactor of claim 11, wherein the inert material comprises an inert gas or an inert liquid.