GB1220411A - Anti-scale composition - Google Patents
Anti-scale compositionInfo
- Publication number
- GB1220411A GB1220411A GB2680868A GB2680868A GB1220411A GB 1220411 A GB1220411 A GB 1220411A GB 2680868 A GB2680868 A GB 2680868A GB 2680868 A GB2680868 A GB 2680868A GB 1220411 A GB1220411 A GB 1220411A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- scale
- weight
- per cent
- pyrophosphate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
- C02F5/125—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen combined with inorganic substances
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
1,220,411. Scale inhibiting composition. H. KAHN. 5 June, 1968, No. 26808/68. Heading C1C. [Also in Division C7] A scale-inhibiting composition suitable for use in processes for recovering fresh water by distillation at temperatures above 170‹ F. from water containing salt-scale forming substances comprises (a) 20-90% by weight of 16‹ BaumÚ agave juice, (b) a combined weight content of sodium pyrophosphate and E.D.T.A. of 10- 70%, the proportions of pyrophosphate to E.D.T.A. being 25-95% of the former to 75-5% of the latter and (c) 1-30 weight per cent of "heavy molecule" sodium silicate (calculated on a SiO 2 : Na 2 O ratio of 3: 22) and/or 1-25 weight per cent of sulphamic acid. The composition reduces salt-scale formation effectively when used in a concentration of at least 1 part by weight in 40,000 parts of water treated, which water may be sea-water, industrial effluent, or brackish water.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2680868A GB1220411A (en) | 1968-06-05 | 1968-06-05 | Anti-scale composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2680868A GB1220411A (en) | 1968-06-05 | 1968-06-05 | Anti-scale composition |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1220411A true GB1220411A (en) | 1971-01-27 |
Family
ID=10249567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2680868A Expired GB1220411A (en) | 1968-06-05 | 1968-06-05 | Anti-scale composition |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1220411A (en) |
-
1968
- 1968-06-05 GB GB2680868A patent/GB1220411A/en not_active Expired
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