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A platform for research: civil engineering, architecture and urbanism
Chromium reducing agent for reducing water-soluble chromium (VI) in cement and preparation method of chromium reducing agent
The invention belongs to the technical field of environmental protection, and discloses a chromium reducing agent for reducing water-soluble chromium (VI) in cement and a preparation method thereof. The chromium reducing agent comprises the following preparation raw materials: a chromium reducing agent, a stabilizer, a catalyst and a dispersion carrier. The high-efficiency high-performance powdery chromium reducing agent can effectively control the content of water-soluble hexavalent chromium in cement and completely meets requirements specified in the national standards for cement in China; since a new technology of an efficient chelating stabilizer is adopted, reduced water-soluble Cr<6+> is not returned and recovered; the preparation method is simple in process and easy to operate and implement; and the doping rate of the high-performance high-efficiency powdery chromium reducing agent is far lower than the maximum dosage specified by T/CCAS009-2019, and the preparation method is simple in process and easy to operate and implement.
本发明属于环境保护技术领域，公开了一种用于降低水泥中水溶性铬(Ⅵ)的降铬剂及其制备方法，该降铬剂包括以下制备原料：铬还原剂、稳定剂、催化剂和分散载体。该高效高性能粉体降铬剂能够可有效控制水泥水溶性六价铬含量，完全达到水泥国家标准规定的要求，因其采用高效螯合稳定剂新技术，被还原后的水溶性Cr6+不会再返回复原，其制备方法简单，易操作实施，且本发明的高性能高效粉体降铬剂掺加率远远低于T/CCAS009‑2019规定的最大用量，其制备方法简单，易操作实施。
Chromium reducing agent for reducing water-soluble chromium (VI) in cement and preparation method of chromium reducing agent
The invention belongs to the technical field of environmental protection, and discloses a chromium reducing agent for reducing water-soluble chromium (VI) in cement and a preparation method thereof. The chromium reducing agent comprises the following preparation raw materials: a chromium reducing agent, a stabilizer, a catalyst and a dispersion carrier. The high-efficiency high-performance powdery chromium reducing agent can effectively control the content of water-soluble hexavalent chromium in cement and completely meets requirements specified in the national standards for cement in China; since a new technology of an efficient chelating stabilizer is adopted, reduced water-soluble Cr<6+> is not returned and recovered; the preparation method is simple in process and easy to operate and implement; and the doping rate of the high-performance high-efficiency powdery chromium reducing agent is far lower than the maximum dosage specified by T/CCAS009-2019, and the preparation method is simple in process and easy to operate and implement.
本发明属于环境保护技术领域，公开了一种用于降低水泥中水溶性铬(Ⅵ)的降铬剂及其制备方法，该降铬剂包括以下制备原料：铬还原剂、稳定剂、催化剂和分散载体。该高效高性能粉体降铬剂能够可有效控制水泥水溶性六价铬含量，完全达到水泥国家标准规定的要求，因其采用高效螯合稳定剂新技术，被还原后的水溶性Cr6+不会再返回复原，其制备方法简单，易操作实施，且本发明的高性能高效粉体降铬剂掺加率远远低于T/CCAS009‑2019规定的最大用量，其制备方法简单，易操作实施。
Chromium reducing agent for reducing water-soluble chromium (VI) in cement and preparation method of chromium reducing agent
用于降低水泥中水溶性铬（Ⅵ）的降铬剂及其制备方法
ZHAO YUNPENG (author) / LIU ZIMU (author) / LIU WEIFENG (author) / WANG ZHAN'E (author)
2021-10-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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