Composition for inhibiting calcium salt scale formation
US8758556B2 · kind B2 · utility
1Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Oct 16, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/928
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.