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A platform for research: civil engineering, architecture and urbanism
Ardealite harmless treatment process and ardealite harmless treatment agent
The invention discloses an ardealite harmless treatment process and an ardealite harmless treatment agent, the process comprises the following steps: (1) taking ardealite raw slag, crushing and homogenizing to obtain ardealite powder; (2) adding an alkali neutralization agent into the ardealite powder for neutralization reaction to obtain pretreated ardealite; (3) performing first-stage aging treatment on the pretreated phosphogypsum to obtain aged phosphogypsum; and (4) adding a composite agent of a calcium-based agent and a polyphosphate agent into the aged phosphogypsum, and then carrying out second-stage aging treatment to obtain the harmless phosphogypsum. The phosphogypsum harmless treatment process is simple, low in treatment cost, good in phosphorus fixing, fluorine fixing and heavy metal fixing effects and suitable for industrial popularization; and the corresponding harmless treatment agent is simple in component, easy to obtain and low in cost.
本发明公开了一种磷石膏无害化处理工艺及磷石膏无害化处理剂，该工艺包括如下步骤：(1)取磷石膏原渣，经破碎和均化后，得磷石膏粉；(2)向磷石膏粉中加入碱中和药剂进行中和反应，得预处理磷石膏；(3)将预处理磷石膏进行第一阶段陈化处理，得陈化磷石膏；(4)向陈化磷石膏中加入钙基药剂和聚磷酸盐药剂的复合药剂，然后进行第二阶段陈化处理，得无害磷石膏。本发明的磷石膏无害化处理工艺简单，处理成本低，且固磷、固氟和固重金属效果好，适宜工业化推广；且相应的无害化处理剂成分简单，容易获得，成本低廉。
Ardealite harmless treatment process and ardealite harmless treatment agent
The invention discloses an ardealite harmless treatment process and an ardealite harmless treatment agent, the process comprises the following steps: (1) taking ardealite raw slag, crushing and homogenizing to obtain ardealite powder; (2) adding an alkali neutralization agent into the ardealite powder for neutralization reaction to obtain pretreated ardealite; (3) performing first-stage aging treatment on the pretreated phosphogypsum to obtain aged phosphogypsum; and (4) adding a composite agent of a calcium-based agent and a polyphosphate agent into the aged phosphogypsum, and then carrying out second-stage aging treatment to obtain the harmless phosphogypsum. The phosphogypsum harmless treatment process is simple, low in treatment cost, good in phosphorus fixing, fluorine fixing and heavy metal fixing effects and suitable for industrial popularization; and the corresponding harmless treatment agent is simple in component, easy to obtain and low in cost.
本发明公开了一种磷石膏无害化处理工艺及磷石膏无害化处理剂，该工艺包括如下步骤：(1)取磷石膏原渣，经破碎和均化后，得磷石膏粉；(2)向磷石膏粉中加入碱中和药剂进行中和反应，得预处理磷石膏；(3)将预处理磷石膏进行第一阶段陈化处理，得陈化磷石膏；(4)向陈化磷石膏中加入钙基药剂和聚磷酸盐药剂的复合药剂，然后进行第二阶段陈化处理，得无害磷石膏。本发明的磷石膏无害化处理工艺简单，处理成本低，且固磷、固氟和固重金属效果好，适宜工业化推广；且相应的无害化处理剂成分简单，容易获得，成本低廉。
Ardealite harmless treatment process and ardealite harmless treatment agent
一种磷石膏无害化处理工艺及磷石膏无害化处理剂
LU YINGSHUN (author) / WANG HUAIJU (author) / YANG LIN (author) / GUAN ZHENHUA (author) / WANG SHENG'AN (author) / HU YUZHI (author) / LIU PEIGEN (author) / YANG XIAOQUAN (author) / LUO JING (author)
2024-11-15
Patent
Electronic Resource
Chinese
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