
基本信息:
- 专利标题: 疏水缔合型水溶性黄原胶及其制备方法与应用
- 专利标题(英):Hydrophobic association water-soluble xanthan gum and preparation method and application thereof
- 申请号:CN201510145692.3 申请日:2015-03-30
- 公开(公告)号:CN104761653A 公开(公告)日:2015-07-08
- 发明人: 王小金 , 朱玥珺 , 刘亚楠 , 陈文娟 , 唐恩高 , 张健 , 谭业邦
- 申请人: 中国海洋石油总公司 , 中海油研究总院
- 申请人地址: 北京市东城区朝阳门北大街25号
- 专利权人: 中国海洋石油总公司,中海油研究总院
- 当前专利权人: 中国海洋石油集团有限公司,中海油研究总院有限责任公司
- 当前专利权人地址: 北京市东城区朝阳门北大街25号
- 代理机构: 北京纪凯知识产权代理有限公司
- 代理人: 关畅
- 主分类号: C08B37/00
- IPC分类号: C08B37/00 ; C09K8/584
The invention discloses a hydrophobic association water-soluble xanthan gum and a preparation method and an application thereof. According to the modified xanthan gum, DMF is adopted as a reaction medium and octadecyl isocyanate is adopted as a modifier; the isocyanate group in octadecyl isocyanate reacts with the hydroxyl group (-OH) in xanthan gum molecules so that a long alkyl chain is introduced into xanthan gum molecules, thus obtaining the hydrophobic association water-soluble xanthan gum with surface activity and bactericidal property. The method has the advantages of mild reaction conditions, use of easily available raw materials, high reactant conversion rate, and convenient product post-treatment. The hydrophobic association water-soluble xanthan gum has better temperature resistance, better salt resistance, better aging resistance and lower surface tension. With the relatively low surface tension, stratum surface wettability can be changed, dispersion of crude oil in water can be enhanced, and the rheological property of crude oil is changed.
公开/授权文献:
- CN104761653B 疏水缔合型水溶性黄原胶及其制备方法与应用 公开/授权日:2017-01-25
IPC结构图谱:
C | 化学;冶金 |
--C08 | 有机高分子化合物;其制备或化学加工;以其为基料的组合物 |
----C08B | 多糖类;其衍生物 |
------C08B37/00 | 不包括在C08B1/00至C08B35/00组内的多糖类的制备;其衍生物 |