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A platform for research: civil engineering, architecture and urbanism
Hexavalent chromium reducing composition and reducing agent thereof
The invention relates to the field of cement additives, in particular to a hexavalent chromium reducing composition and a reducing agent thereof. The hexavalent chromium reducing composition is at least prepared from the following components in parts by weight: 25 to 40 parts of ferrite, 7 to 15 parts of stannous salt, 2 to 8 parts of manganese salt, 5 to 10 parts of a polycarboxylate water reducing agent and 10 to 20 parts of lignosulfonate with the sulfonation degree of 0.48 to 0.70. The hexavalent chromium reducing composition provided by the invention is non-toxic, tasteless, non-corrosiveand stable in chemical performance, can maintain very stable performance for different mills and clinkers, not only solves the problems of unstable ferrous ion reduction, easy moisture absorption andthe like, but also can improve the storage stability of the hexavalent chromium reducing composition and improve the strength of cement.
本发明水泥的添加剂领域，尤其涉及一种六价铬消减组合物及其消减剂。一种六价铬消减组合物，按重量份计，所述六价铬消减组合物至少包括亚铁盐25‑40份、亚锡盐7‑15份、锰盐2‑8份、聚羧酸盐减水剂5‑10份、磺化度为0.48‑0.70的木质素磺酸盐10‑20份。本发明提供的六价铬消减组合物，无毒、无味、无腐蚀性，化学性能稳定，对于不同磨机与熟料，均能保持非常稳定的性能，不仅解决了亚铁离子还原不稳定易吸潮等特点，还能提高六价铬消减组合物的贮存稳定性和提高水泥的强度。
Hexavalent chromium reducing composition and reducing agent thereof
The invention relates to the field of cement additives, in particular to a hexavalent chromium reducing composition and a reducing agent thereof. The hexavalent chromium reducing composition is at least prepared from the following components in parts by weight: 25 to 40 parts of ferrite, 7 to 15 parts of stannous salt, 2 to 8 parts of manganese salt, 5 to 10 parts of a polycarboxylate water reducing agent and 10 to 20 parts of lignosulfonate with the sulfonation degree of 0.48 to 0.70. The hexavalent chromium reducing composition provided by the invention is non-toxic, tasteless, non-corrosiveand stable in chemical performance, can maintain very stable performance for different mills and clinkers, not only solves the problems of unstable ferrous ion reduction, easy moisture absorption andthe like, but also can improve the storage stability of the hexavalent chromium reducing composition and improve the strength of cement.
本发明水泥的添加剂领域，尤其涉及一种六价铬消减组合物及其消减剂。一种六价铬消减组合物，按重量份计，所述六价铬消减组合物至少包括亚铁盐25‑40份、亚锡盐7‑15份、锰盐2‑8份、聚羧酸盐减水剂5‑10份、磺化度为0.48‑0.70的木质素磺酸盐10‑20份。本发明提供的六价铬消减组合物，无毒、无味、无腐蚀性，化学性能稳定，对于不同磨机与熟料，均能保持非常稳定的性能，不仅解决了亚铁离子还原不稳定易吸潮等特点，还能提高六价铬消减组合物的贮存稳定性和提高水泥的强度。
Hexavalent chromium reducing composition and reducing agent thereof
一种六价铬消减组合物及其消减剂
LI MINGZE (author) / FU BINGZHANG (author) / GU HONGYING (author)
2020-09-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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