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Method for enhancing potassium extraction of ardealite-potassium feldspar by multi-stage atmosphere control
The invention relates to a method for enhancing potassium extraction of ardealite-potassium feldspar through multi-section atmosphere control, which is used for solving the common problems of high energy consumption and low conversion recovery rate in the existing ardealite-potassium feldspar potassium extraction technology. The invention provides a method for enhancing potassium extraction of ardealite-potassium feldspar by multi-stage atmosphere control, which comprises the following steps: mixing ardealite, potassium feldspar and a reducing agent according to a certain ratio, sequentially carrying out first-stage weak oxidation low-temperature roasting, second-stage weak reduction medium-temperature roasting and third-stage strong reduction high-temperature roasting, and recovering soluble potassium salt after roasting slag is subjected to water leaching, the water leaching residues can be used as building materials.
本发明涉及一种多段控制气氛强化磷石膏‑钾长石提钾的方法，用以解决现有磷石膏‑钾长石提钾工艺技术中普遍存在的能耗高、转化回收率低的问题。本发明提供了一种多段控制气氛强化磷石膏‑钾长石提钾的方法，将磷石膏、钾长石、还原剂按一定比例混合，再依次进行一段弱氧化低温焙烧、二段弱还原中温焙烧、三段强还原高温焙烧，焙烧渣经水浸后回收可溶性钾盐，水浸渣可作为建材使用。
Method for enhancing potassium extraction of ardealite-potassium feldspar by multi-stage atmosphere control
The invention relates to a method for enhancing potassium extraction of ardealite-potassium feldspar through multi-section atmosphere control, which is used for solving the common problems of high energy consumption and low conversion recovery rate in the existing ardealite-potassium feldspar potassium extraction technology. The invention provides a method for enhancing potassium extraction of ardealite-potassium feldspar by multi-stage atmosphere control, which comprises the following steps: mixing ardealite, potassium feldspar and a reducing agent according to a certain ratio, sequentially carrying out first-stage weak oxidation low-temperature roasting, second-stage weak reduction medium-temperature roasting and third-stage strong reduction high-temperature roasting, and recovering soluble potassium salt after roasting slag is subjected to water leaching, the water leaching residues can be used as building materials.
本发明涉及一种多段控制气氛强化磷石膏‑钾长石提钾的方法，用以解决现有磷石膏‑钾长石提钾工艺技术中普遍存在的能耗高、转化回收率低的问题。本发明提供了一种多段控制气氛强化磷石膏‑钾长石提钾的方法，将磷石膏、钾长石、还原剂按一定比例混合，再依次进行一段弱氧化低温焙烧、二段弱还原中温焙烧、三段强还原高温焙烧，焙烧渣经水浸后回收可溶性钾盐，水浸渣可作为建材使用。
Method for enhancing potassium extraction of ardealite-potassium feldspar by multi-stage atmosphere control
一种多段控制气氛强化磷石膏-钾长石提钾的方法
YAN TINGGUI (Autor:in) / YU RONGZHEN (Autor:in) / ZHAO XIAOJIAO (Autor:in) / YAO PIN (Autor:in) / XIAO YA (Autor:in)
15.12.2023
Patent
Elektronische Ressource
Chinesisch
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