IMPROVED METHOD OF MASS PRODUCTION OF PHOSPHORIC ACID WITH APPLICATION OF ROTATION FURNACES Russian patent published in 2018 - IPC C01B25/01 C01B25/18 F27B7/00

Abstract RU 2642651 C2

FIELD: chemistry.

SUBSTANCE: method involves the following steps: (1) primary processing of raw materials, (2) preparing internal areas of the granules, (3) forming composite pellets, (4) restoring composite pellets on heating method, and (5) hydrating and absorbing phosphorus.

EFFECT: energy-saving, environmentally safe and highly efficient process, which allows to produce high-quality phosphoric acid.

13 cl, 20 dwg

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RU 2 642 651 C2

Authors

Hou Yonghe

Wei Shifa

Dates

2018-01-25—Published

2013-08-09—Filed