Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Whitening method and production process of phosphogypsum
The invention provides a whitening method and a production process of phosphogypsum, and belongs to the technical field of phosphorus chemical treatment. According to the specific scheme, the method comprises the following steps: pretreating phosphogypsum in an acid solution, filtering and washing after pretreatment, putting a filter cake into a beaker after filtering, adding a whitening agent, filtering, washing, drying and finally calcining after reaction is completed, so as to achieve the whitening effect of the phosphogypsum. The method has the advantages of simple operation steps, obvious whitening effect, no toxicity, no pollution and the like, and is suitable for industrial production.
本发明专利提供了一种磷石膏的增白方法及生产工艺，属于磷化工处理技术领域。具体方案为：将磷石膏在酸溶液中进行预处理，待预处理过后，进行过滤洗涤，过滤完成后，将滤饼置于烧杯中，加入增白剂，待反应完成后，进行过滤洗涤，烘干，最后进行煅烧，达到磷石膏的增白效果。本方法具有操作步骤简单、增白效果明显、无毒无污染等优势，适用于工业生产。
Whitening method and production process of phosphogypsum
The invention provides a whitening method and a production process of phosphogypsum, and belongs to the technical field of phosphorus chemical treatment. According to the specific scheme, the method comprises the following steps: pretreating phosphogypsum in an acid solution, filtering and washing after pretreatment, putting a filter cake into a beaker after filtering, adding a whitening agent, filtering, washing, drying and finally calcining after reaction is completed, so as to achieve the whitening effect of the phosphogypsum. The method has the advantages of simple operation steps, obvious whitening effect, no toxicity, no pollution and the like, and is suitable for industrial production.
本发明专利提供了一种磷石膏的增白方法及生产工艺，属于磷化工处理技术领域。具体方案为：将磷石膏在酸溶液中进行预处理，待预处理过后，进行过滤洗涤，过滤完成后，将滤饼置于烧杯中，加入增白剂，待反应完成后，进行过滤洗涤，烘干，最后进行煅烧，达到磷石膏的增白效果。本方法具有操作步骤简单、增白效果明显、无毒无污染等优势，适用于工业生产。
Whitening method and production process of phosphogypsum
一种磷石膏的增白方法及生产工艺
DENG QIULIN (Autor:in) / ZOU XIANGHUA (Autor:in) / DONG FAQIN (Autor:in) / TAN HONGBIN (Autor:in) / LIAO HUIWEI (Autor:in)
18.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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