Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grinding aid containing waste liquid generated by caprolactam rearrangement reaction and application of grinding aid
The invention discloses a grinding aid containing waste liquid generated by a caprolactam rearrangement reaction. The grinding aid comprises the waste liquid generated by the caprolactam rearrangement reaction, modified sepiolite and a modified grinding aid. In the modified sepiolite, sepiolite powder is added into hydrochloric acid, stirring is conducted for 1-2 h at the temperature of 50-60 DEG C, microcrystalline cellulose and ferric chloride are added into the mixture, a hydrothermal reaction is conducted for 10-18 h at the temperature of 180-200 DEG C, filtering is conducted, washing is conducted 2-4 times with deionized water, drying is conducted at the temperature of 100-110 DEG C till the weight is constant, smashing is conducted, and the modified sepiolite is obtained. The raw materials are easy to obtain and low in price, the product cost can be greatly reduced, the grinding aiding effect is remarkable, cement particle distribution can be reduced, the cement strength can be improved, the preparation method is simple and easy to implement, the reaction conditions are mild, the product can be stored for a long time, the requirement for reaction equipment is not high, and the method is suitable for industrial production.
本发明公开了一种含己内酰胺重排反应产生的废液的助磨剂，包括己内酰胺重排反应产生的废液、改性海泡石、改性助磨剂；改性海泡石中，将海泡石粉加入至盐酸中，在温度50‑60℃搅拌1‑2h，向其中加入微晶纤维素、氯化铁，在温度180‑200℃水热反应10‑18h，过滤，用去离子水洗涤2‑4次，在温度100‑110℃干燥至恒重，粉碎，得到改性海泡石。本发明不仅原料易得，价格低廉，且可以大幅度降低产品成本，助磨效果显著，不仅可缩小水泥颗粒分布，提高水泥强度，且制备方法简单易行，反应条件温和，产品可以长期储存，对反应设备要求不高，适合工业化生产。
Grinding aid containing waste liquid generated by caprolactam rearrangement reaction and application of grinding aid
The invention discloses a grinding aid containing waste liquid generated by a caprolactam rearrangement reaction. The grinding aid comprises the waste liquid generated by the caprolactam rearrangement reaction, modified sepiolite and a modified grinding aid. In the modified sepiolite, sepiolite powder is added into hydrochloric acid, stirring is conducted for 1-2 h at the temperature of 50-60 DEG C, microcrystalline cellulose and ferric chloride are added into the mixture, a hydrothermal reaction is conducted for 10-18 h at the temperature of 180-200 DEG C, filtering is conducted, washing is conducted 2-4 times with deionized water, drying is conducted at the temperature of 100-110 DEG C till the weight is constant, smashing is conducted, and the modified sepiolite is obtained. The raw materials are easy to obtain and low in price, the product cost can be greatly reduced, the grinding aiding effect is remarkable, cement particle distribution can be reduced, the cement strength can be improved, the preparation method is simple and easy to implement, the reaction conditions are mild, the product can be stored for a long time, the requirement for reaction equipment is not high, and the method is suitable for industrial production.
本发明公开了一种含己内酰胺重排反应产生的废液的助磨剂，包括己内酰胺重排反应产生的废液、改性海泡石、改性助磨剂；改性海泡石中，将海泡石粉加入至盐酸中，在温度50‑60℃搅拌1‑2h，向其中加入微晶纤维素、氯化铁，在温度180‑200℃水热反应10‑18h，过滤，用去离子水洗涤2‑4次，在温度100‑110℃干燥至恒重，粉碎，得到改性海泡石。本发明不仅原料易得，价格低廉，且可以大幅度降低产品成本，助磨效果显著，不仅可缩小水泥颗粒分布，提高水泥强度，且制备方法简单易行，反应条件温和，产品可以长期储存，对反应设备要求不高，适合工业化生产。
Grinding aid containing waste liquid generated by caprolactam rearrangement reaction and application of grinding aid
一种含己内酰胺重排反应产生的废液的助磨剂及其应用
LI MINGHUI (Autor:in) / LI XIN (Autor:in) / LI HUAXIANG (Autor:in) / LI JIAJING (Autor:in)
08.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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