Invention Grant
- Patent Title: Methods of and formulations for reducing and inhibiting the growth of the concentration of microbes in water-based fluids and systems used with them
- Patent Title (中): 用于减少和抑制水基液体和系统中微生物浓度增长的方法和制剂
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Application No.: US12669657Application Date: 2008-07-21
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Publication No.: US08952199B2Publication Date: 2015-02-10
- Inventor: Bei Yin , Jingjun Yang
- Applicant: Bei Yin , Jingjun Yang
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Agent Tifani M. Edwards
- International Application: PCT/US2008/070652 WO 20080721
- International Announcement: WO2009/015089 WO 20090129
- Main IPC: C07F9/02
- IPC: C07F9/02 ; C10M173/00 ; A01N35/02 ; C02F1/50 ; C09D5/14 ; C10M141/10
Abstract:
The present invention provides methods and formulations for reducing or inhibiting increase in the concentration of microbes in a water-based fluid. The methods and formulations of the present invention use glutaraldehyde and a hydroxymethyl-substituted phosphorus compound selected from the group consisting of tetrakis(hydroxymethyl)phosphonium salts, C1-C3 alkyl- and alkenyltris(hydroxymethyl)phosphonium salts and tris(hydroxymethyl)phosphine, in a ratio of hydroxymethyl-substituted phosphorus compound to glutaraldehyde in the range of about 2:1 to about 7:1, or about 3.5:1 to about 7.5:1. The methods and formulations of the present invention can be useful in treating water contaminated with aerobic or anaerobic bacteria in oilfield and other industrial applications.
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