发明名称 |
METHOD FOR REDUCING COLOR OF LIGNOSULFONATES |
摘要 |
Disclosed is a method of reducing the color of lignosulfonates, which is carried out by adding a reducing agent and a chelating agent. The lighter color lignosulfonate solutions prepared by the present process exhibits very low staining, good heat stability, and without any additional harmful impact to the application. |
申请公布号 |
WO2017025862(A1) |
申请公布日期 |
2017.02.16 |
申请号 |
WO2016IB54666 |
申请日期 |
2016.08.03 |
申请人 |
BASF SE;BASF (CHINA) COMPANY LIMITED |
发明人 |
YE, Tian Shi;DING, Weiwei;MEI, Yu |
分类号 |
C07G1/00;D21C9/10 |
主分类号 |
C07G1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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