Invention Grant
- Patent Title: Composition for inhibiting calcium salt scale formation
- Patent Title (中): 用于抑制钙盐垢形成的组合物
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Application No.: US13264476Application Date: 2010-03-16
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Publication No.: US08758556B2Publication Date: 2014-06-24
- Inventor: Sheldon Phillip Verrett
- Applicant: Sheldon Phillip Verrett
- Applicant Address: CH Zug
- Assignee: Dequest AG
- Current Assignee: Dequest AG
- Current Assignee Address: CH Zug
- Agency: Husch Blackwell LLP
- Agent Samuel Digirolamo
- Priority: EP09157548 20090407
- International Application: PCT/EP2010/053412 WO 20100316
- International Announcement: WO2010/106077 WO 20100923
- Main IPC: D21C3/02
- IPC: D21C3/02 ; D21C3/22 ; D21C11/10 ; C02F5/10 ; C02F5/14 ; D21C9/00 ; C02F103/28
Abstract:
A method for inhibiting the formation, deposition and adherence of calcium salt scale to metallic and other surfaces in the equipment, vessels and/or piping of a chemical pulp process facility comprising adding an effective scale inhibiting amount of a composition to the alkaline aqueous mixture in the digester of said chemical pulping process. Said composition consists of at least one phosphonate component (I) and at least one component (II) consisting of at least one carboxylated fructan compound.
Public/Granted literature
- US20120160438A1 COMPOSITION FOR INHIBITING CALCIUM SALT SCALE FORMATION Public/Granted day:2012-06-28
Information query
