Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Novel chromium reducing agent for cement
The invention relates to a novel chromium reducing agent used in cement. Specifically, the invention provides a chromium reducing agent composition, a method for reducing the content of water-soluble hexavalent chromium in cement by using the chromium reducing agent composition, and a cement composition containing the chromium reducing agent composition. The present invention relates to a chromium reducer composition comprising: a chelating agent in an amount preferably from 30 to 60% by weight, preferably from 35 to 55% by weight, preferably from 40 to 50% by weight, based on the total weight of the chromium reducer composition; and a stabilizer in an amount preferably from 0.1 to 1% by weight, preferably from 0.3 to 0.7% by weight, preferably from 0.4 to 0.6% by weight, based on the total weight of the chromium reducer composition. The chromium reducing agent composition has the advantages of obvious chromium reducing effect, excellent high temperature resistance, durability and storage stability, and low price.
本发明涉及用于水泥中的新型降铬剂。具体地，本发明提供降铬剂组合物，使用所述降铬剂组合物降低水泥中水溶性六价铬含量的方法和包含所述降铬剂组合物的水泥组合物。所述降铬剂组合物包含：螯合剂，其量优选为30‑60重量％，优选35‑55重量％，优选40‑50重量％，基于所述降铬剂组合物的总重量；和稳定剂，其量优选为0.1‑1重量％，优选0.3‑0.7重量％，优选0.4‑0.6重量％，基于所述降铬剂组合物的总重量。所述降铬剂组合物具有显著的降铬效果、优异的耐高温性、耐久性和储存稳定性，并且价格低廉。
Novel chromium reducing agent for cement
The invention relates to a novel chromium reducing agent used in cement. Specifically, the invention provides a chromium reducing agent composition, a method for reducing the content of water-soluble hexavalent chromium in cement by using the chromium reducing agent composition, and a cement composition containing the chromium reducing agent composition. The present invention relates to a chromium reducer composition comprising: a chelating agent in an amount preferably from 30 to 60% by weight, preferably from 35 to 55% by weight, preferably from 40 to 50% by weight, based on the total weight of the chromium reducer composition; and a stabilizer in an amount preferably from 0.1 to 1% by weight, preferably from 0.3 to 0.7% by weight, preferably from 0.4 to 0.6% by weight, based on the total weight of the chromium reducer composition. The chromium reducing agent composition has the advantages of obvious chromium reducing effect, excellent high temperature resistance, durability and storage stability, and low price.
本发明涉及用于水泥中的新型降铬剂。具体地，本发明提供降铬剂组合物，使用所述降铬剂组合物降低水泥中水溶性六价铬含量的方法和包含所述降铬剂组合物的水泥组合物。所述降铬剂组合物包含：螯合剂，其量优选为30‑60重量％，优选35‑55重量％，优选40‑50重量％，基于所述降铬剂组合物的总重量；和稳定剂，其量优选为0.1‑1重量％，优选0.3‑0.7重量％，优选0.4‑0.6重量％，基于所述降铬剂组合物的总重量。所述降铬剂组合物具有显著的降铬效果、优异的耐高温性、耐久性和储存稳定性，并且价格低廉。
Novel chromium reducing agent for cement
用于水泥中的新型降铬剂
WANG SUJUAN (Autor:in) / YANG LINYUE (Autor:in)
19.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
New chromium reducing agent for cement
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| Europäisches Patentamt | 2021
High-temperature-resistant cement hexavalent chromium reducing agent
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