Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Aliphatic water reducer and preparation method thereof
The invention relates to the technical field of water reducing agents, in particular to an aliphatic water reducing agent and a preparation method thereof. The preparation method comprises the following steps: S100, adding a first part of a formaldehyde solution and a ketone compound into a sulfite solution for sulfonation reaction, and controlling the sulfonation reaction temperature to be 62 DEG C or below in the adding process; and S200, after the first part of the formaldehyde solution and the ketone compound are completely added, continuously adding a second part of the formaldehyde solution for condensation reaction, controlling the temperature of a reaction system to be 80 DEG C or above in the adding process, and after the second part of the formaldehyde solution is completely added, carrying out heat preservation for 40-120 minutes at the temperature, so as to obtain the aliphatic water reducer. By adopting the scheme to produce the water reducing agent, the production cost can be obviously reduced, and the benefit can be improved; compared with the prior art, the cost performance of the product can be improved, the market competitiveness of the product is improved, the performance of the prepared product is improved, the utilization rate of the water reducer material is improved, and energy and resource consumption is reduced.
本发明涉及减水剂技术领域，特别涉及一种脂肪族减水剂及其制备方法。该制备方法包括以下步骤：S100、将第一部分甲醛溶液、酮类化合物加入亚硫酸盐溶液中进行磺化反应，并在加入过程中控制磺化反应温度在62℃及其以下；S200、待第一部分甲醛溶液和酮类化合物加入完毕后，继续加入第二部分甲醛溶液进行缩合反应，并在加入过程中将反应体系的温度控制在80℃以上，且第二部分甲醛溶液加入完毕后，于该温度下保温40min～120min，即制得脂肪族减水剂；采用本发明方案进行生产减水剂，能明显降低生产成本，提高效益；与现有技术相比，本发明能够提高产品的性价比，提高产品的市场竞争能力，制得产品性能得到改善，提高减水剂材料利用率，减少能源及资源消耗。
Aliphatic water reducer and preparation method thereof
The invention relates to the technical field of water reducing agents, in particular to an aliphatic water reducing agent and a preparation method thereof. The preparation method comprises the following steps: S100, adding a first part of a formaldehyde solution and a ketone compound into a sulfite solution for sulfonation reaction, and controlling the sulfonation reaction temperature to be 62 DEG C or below in the adding process; and S200, after the first part of the formaldehyde solution and the ketone compound are completely added, continuously adding a second part of the formaldehyde solution for condensation reaction, controlling the temperature of a reaction system to be 80 DEG C or above in the adding process, and after the second part of the formaldehyde solution is completely added, carrying out heat preservation for 40-120 minutes at the temperature, so as to obtain the aliphatic water reducer. By adopting the scheme to produce the water reducing agent, the production cost can be obviously reduced, and the benefit can be improved; compared with the prior art, the cost performance of the product can be improved, the market competitiveness of the product is improved, the performance of the prepared product is improved, the utilization rate of the water reducer material is improved, and energy and resource consumption is reduced.
本发明涉及减水剂技术领域，特别涉及一种脂肪族减水剂及其制备方法。该制备方法包括以下步骤：S100、将第一部分甲醛溶液、酮类化合物加入亚硫酸盐溶液中进行磺化反应，并在加入过程中控制磺化反应温度在62℃及其以下；S200、待第一部分甲醛溶液和酮类化合物加入完毕后，继续加入第二部分甲醛溶液进行缩合反应，并在加入过程中将反应体系的温度控制在80℃以上，且第二部分甲醛溶液加入完毕后，于该温度下保温40min～120min，即制得脂肪族减水剂；采用本发明方案进行生产减水剂，能明显降低生产成本，提高效益；与现有技术相比，本发明能够提高产品的性价比，提高产品的市场竞争能力，制得产品性能得到改善，提高减水剂材料利用率，减少能源及资源消耗。
Aliphatic water reducer and preparation method thereof
一种脂肪族减水剂及其制备方法
DU KELU (Autor:in) / LIU ZUNYU (Autor:in) / LI XIANGHE (Autor:in) / GUAN MENGQIN (Autor:in) / YAO WENJIE (Autor:in)
17.01.2023
Patent
Elektronische Ressource
Chinesisch
Aliphatic water reducer and preparation method thereof
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