Method of preventing the adhesion of scale to the heating surfaces of a thermal desalination apparatus
US4200500A · kind A · utility
3Cited by
6References
5Claims
0Family size
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Key dates
| Filing date | Nov 7, 1977 |
| Grant date | Apr 29, 1980 |
| Priority date | — |
| Expiry date | Nov 7, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S159/13
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The reaction product of long-chain unsaturated hydrocarbons (fatty derivatives) with maleic acid anhydride and/or maleic acid is added to the salt-containing water of a thermal desalination installation to increase the solubility of the calcium and magnesium salts and prevent encrustation of heating surfaces thereby.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.