Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Composite chromium-reducing cement grinding aid and preparation method thereof
The invention provides a composite chromium-reducing cement grinding aid and a preparation method thereof. The technical problems that in the prior art, due to the fact that ferrous sulfate and a chromium-reducing cement grinding aid are exposed in the air, the ferrous sulfate and the chromium-reducing cement grinding aid are both gradually oxidized, the chromium-reducing effect is affected, and the requirement for the using temperature is strict are solved. The composite chromium-reducing cement grinding aid comprises the following components in parts by weight: 10-20 parts of alkylol amine,5-30 parts of a chromium reduction auxiliary agent, 0.5-8 parts of an organic acid and 42-84.5 parts of water. The composite chromium-reducing cement grinding aid prepared by the invention not only has the grinding aid effect of the grinding aid, but also has strong oxidation resistance, is suitable for long-term storage, and can prevent the chromium-reducing effect from being influenced by oxidation during storage. A finished product is a uniform solution, so that pump blockage caused by precipitation accumulation can be avoided, the high-temperature-resistant performance is excellent, and the cement working condition temperature change can be well adapted. The production process is simple, operation and quality control are easy, and obvious technical advantages and wide market prospectsare achieved.
本发明提供了一种复合降铬型水泥助磨剂及其制备方法，解决了现有技术中的硫酸亚铁和降铬型水泥助磨剂，由于暴露于空气中，硫酸亚铁和降铬型水泥助磨剂均会逐渐被氧化，进而影响降铬效果，并且存在对使用温度要求严格的技术问题。其制备包括下述重量份的组分：醇胺10‑20份；降铬助剂5‑30份；有机酸0.5‑8份；水42‑84.5份。本发明制得的复合降铬型水泥助磨剂，不仅具有助磨剂本身的助磨效果，而且抗氧化性强，适合长期存放，可以避免存放被氧化而影响到降铬效果；成品为均匀溶液，可以避免沉淀积聚易出现堵泵现象；且耐高温性能优异，能很好地适应水泥工况温度的变化；生产工艺简单，易于操作和进行质量控制，具有明显的技术优势和广阔的市场前景。
Composite chromium-reducing cement grinding aid and preparation method thereof
The invention provides a composite chromium-reducing cement grinding aid and a preparation method thereof. The technical problems that in the prior art, due to the fact that ferrous sulfate and a chromium-reducing cement grinding aid are exposed in the air, the ferrous sulfate and the chromium-reducing cement grinding aid are both gradually oxidized, the chromium-reducing effect is affected, and the requirement for the using temperature is strict are solved. The composite chromium-reducing cement grinding aid comprises the following components in parts by weight: 10-20 parts of alkylol amine,5-30 parts of a chromium reduction auxiliary agent, 0.5-8 parts of an organic acid and 42-84.5 parts of water. The composite chromium-reducing cement grinding aid prepared by the invention not only has the grinding aid effect of the grinding aid, but also has strong oxidation resistance, is suitable for long-term storage, and can prevent the chromium-reducing effect from being influenced by oxidation during storage. A finished product is a uniform solution, so that pump blockage caused by precipitation accumulation can be avoided, the high-temperature-resistant performance is excellent, and the cement working condition temperature change can be well adapted. The production process is simple, operation and quality control are easy, and obvious technical advantages and wide market prospectsare achieved.
本发明提供了一种复合降铬型水泥助磨剂及其制备方法，解决了现有技术中的硫酸亚铁和降铬型水泥助磨剂，由于暴露于空气中，硫酸亚铁和降铬型水泥助磨剂均会逐渐被氧化，进而影响降铬效果，并且存在对使用温度要求严格的技术问题。其制备包括下述重量份的组分：醇胺10‑20份；降铬助剂5‑30份；有机酸0.5‑8份；水42‑84.5份。本发明制得的复合降铬型水泥助磨剂，不仅具有助磨剂本身的助磨效果，而且抗氧化性强，适合长期存放，可以避免存放被氧化而影响到降铬效果；成品为均匀溶液，可以避免沉淀积聚易出现堵泵现象；且耐高温性能优异，能很好地适应水泥工况温度的变化；生产工艺简单，易于操作和进行质量控制，具有明显的技术优势和广阔的市场前景。
Composite chromium-reducing cement grinding aid and preparation method thereof
一种复合降铬型水泥助磨剂及其制备方法
HAN LI (Autor:in) / XIONG YULAN (Autor:in) / YU ZHIQUAN (Autor:in) / WU XIAOBO (Autor:in) / ZHOU WEN (Autor:in) / YANG XIULAN (Autor:in) / LI JIE (Autor:in)
08.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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