公开(公告)号：US20160046533A1

公开(公告)日：2016-02-18

申请号：US14775466

申请日：2014-03-14

Applicant: K-TECHNOLOGIES, INC.

Inventor： William W. BERRY ,  Thomas E. BAROODY

IPC: C05B7/00 ,  C05D3/00 ,  C05C3/00 ,  C05B17/00 ,  C05G3/00

CPC classification number: C05B7/00 ,  B01J39/05 ,  B01J39/07 ,  B01J49/06 ,  B01J49/53 ,  C01B25/41 ,  C01B25/451 ,  C05B11/00 ,  C05B17/00 ,  C05C3/00 ,  C05D3/00 ,  C05G3/0064

Abstract: The present invention relates to a continuous ion exchange methodology for production of ammonium-potassium polyphosphate solutions using agricultural grade phosphoric acid, anhydrous ammonia, and agricultural grade potassium chloride (ag potash) as primary feedstocks. The method is particularly applicable to the production of these low salt index, specialty liquid fertilizer solutions and allows for the use of less expensive ag-potash and impure phosphoric acid as the potassium and phosphate sources in order to produce the ammonium-potassium polyphosphate compounds, which are chloride free as a result of the ion ex-change process.

Abstract translation: 本发明涉及使用农业级磷酸，无水氨和农业级氯化钾（ag钾盐）作为主要原料生产多磷酸铵钾溶液的连续离子交换方法。 该方法特别适用于这些低盐指数，特种液体肥料溶液的生产，并且允许使用较便宜的钾盐和不纯的磷酸作为钾和磷酸盐来制备多磷酸铵钾化合物， 其由于离子交换过程而不含氯化物。

公开(公告)号：US20240158888A1

公开(公告)日：2024-05-16

申请号：US18386213

申请日：2023-11-01

Applicant: K-Technologies, Inc.

Inventor： William W. BERRY ,  Thomas E. BAROODY

IPC: C22B3/00 ,  C01B25/238 ,  C02F1/42 ,  C02F1/52 ,  C22B3/42

CPC classification number: C22B17/04 ,  C01B25/238 ,  C02F1/42 ,  C02F1/52 ,  C22B3/42 ,  C02F1/28

Abstract: In alternative embodiments, provided are methods and processes for the removal of cadmium (Cd) from wet-process phosphoric acid that may contain Cd, including excessive amounts of Cd. The process developed is based on the application of commercially available ion exchange resins with the application of Continuous Ion Exchange (CIX) technology. In alternative embodiments, provided are processes and methods for the recovery and/or the removal of cadmium from wet-process phosphoric acid using a continuous ion exchange approach. In alternative embodiments, use of processes and methods as provided herein allows for the reduction of cadmium metal contaminants with minimal phosphate losses and dilution in order to produce a phosphoric acid that is suitable for the production of fertilizers and phosphoric acid products, such as world-class diammonium phosphate fertilizer (DAP), merchant-grade phosphoric acid, super-phosphoric acid, and other phosphoric acid products.

公开(公告)号：US20220325377A1

公开(公告)日：2022-10-13

申请号：US17616375

申请日：2020-06-03

Applicant: K-Technologies, Inc.

Inventor： William W. BERRY ,  Thomas E. BAROODY

IPC: C22B3/00 ,  C01B25/238 ,  C22B3/42

Abstract: In alternative embodiments, provided are methods and processes for the removal of cadmium (Cd) from wet-process phosphoric acid that may contain Cd, including excessive amounts of Cd. The process developed is based on the application of commercially available ion exchange resins with the application of Continuous Ion Exchange (CIX) technology. In alternative embodiments, provided are processes and methods for the recovery and/or the removal of cadmium from wet-process phosphoric acid using a continuous ion exchange approach. In alternative embodiments, use of processes and methods as provided herein allows for the reduction of cadmium metal contaminants with minimal phosphate losses and dilution in order to produce a phosphoric acid that is suitable for the production of fertilizers and phosphoric acid products, such as world-class diammonium phosphate fertilizer (DAP), merchant-grade phosphoric acid, super-phosphoric acid, and other phosphoric acid products.

公开(公告)号：US20230122906A1

公开(公告)日：2023-04-20

申请号：US17973415

申请日：2022-10-25

Applicant: K-Technologies, Inc.

Inventor： William W. BERRY ,  Thomas E. BAROODY

IPC: C22B3/00 ,  C01B25/238 ,  C02F1/42 ,  C02F1/52 ,  C22B3/42

Abstract: In alternative embodiments, provided are methods and processes for the removal of cadmium (Cd) from wet-process phosphoric acid that may contain Cd, including excessive amounts of Cd. The process developed is based on the application of commercially available ion exchange resins with the application of Continuous Ion Exchange (CIX) technology. In alternative embodiments, provided are processes and methods for the recovery and/or the removal of cadmium from wet-process phosphoric acid using a continuous ion exchange approach. In alternative embodiments, use of processes and methods as provided herein allows for the reduction of cadmium metal contaminants with minimal phosphate losses and dilution in order to produce a phosphoric acid that is suitable for the production of fertilizers and phosphoric acid products, such as world-class diammonium phosphate fertilizer (DAP), merchant-grade phosphoric acid, super-phosphoric acid, and other phosphoric acid products.