发明授权
- 专利标题: Tin/cerium compounds for lignosulfonate processing
- 专利标题(中): 用于木质素磺酸盐处理的锡/铈化合物
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申请号: US336610申请日: 1994-11-09
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公开(公告)号: US5610124A公开(公告)日: 1997-03-11
- 发明人: Bharat B. Patel
- 申请人: Bharat B. Patel
- 申请人地址: OK Bartlesville
- 专利权人: Phillips Petroleum Company
- 当前专利权人: Phillips Petroleum Company
- 当前专利权人地址: OK Bartlesville
- 主分类号: C07G99/00
- IPC分类号: C07G99/00 ; C09K8/20 ; C09K7/02 ; C07G1/00
摘要:
This invention concerns tin-, cerium-, and base-treated tin-bearing lignosulfonates, a process for their preparation from calcium lignosulfonate, and a process for the use thereof as drilling fluid additives.
公开/授权文献
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