GB784750A - Process for the treatment of boiler feed water - Google Patents
Process for the treatment of boiler feed waterInfo
- Publication number
- GB784750A GB784750A GB3683254A GB3683254A GB784750A GB 784750 A GB784750 A GB 784750A GB 3683254 A GB3683254 A GB 3683254A GB 3683254 A GB3683254 A GB 3683254A GB 784750 A GB784750 A GB 784750A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boiler
- feed water
- boiler feed
- sodium
- magnesium
- 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
- C02F5/02—Softening water by precipitation of the hardness
Abstract
In the known alkaline treatment processes (defined in the Specification) given to boiler feed waters and boiler waters, the resulting boiler sludges are rendered free-flowing by adding a readily-soluble magnesium compound to the boiler feed water in such amount that the value of the expression: <FORM:0784750/I/1> in which CaO, MgO, SiO2 are respectively the equivalents in moles of the calcium, magnesium and silicon compounds in the boiler feed water, is greater than 4 and preferably greater than 7. The treatment according to the invention may be provided by continuously feeding magnesium sulphate (or nitrate, carbonate or chloride) solution into a boiler feed water vessel, or directly into the boiler, or into the feed water before it enters the boiler, so that in any case precipitation of sludge occurs in the boiler. Alternatively, briquettes of magnesium sulphate may be packed into a by-pass feeder for gradual solution as feed water passes over them. One or more of the following may be present in the feed water or boiler: an antifoaming agent (e.g. selected from polyoxyalkylene glycols, monoethers and diethers of polyoxyalkylene glycols, polyacyl polyamines), a de-oxygenating agent (e.g., sodium sulphite, sodium nitrite, tannins, hydrazine), sodium aluminate. According to the first Provisional Specification the "formula expression" is: <FORM:0784750/I/2> and the alumina content of the feed water may be adjusted by addition of sodium aluminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3683254A GB784750A (en) | 1954-12-20 | 1954-12-20 | Process for the treatment of boiler feed water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3683254A GB784750A (en) | 1954-12-20 | 1954-12-20 | Process for the treatment of boiler feed water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB784750A true GB784750A (en) | 1957-10-16 |
Family
ID=10391533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3683254A Expired GB784750A (en) | 1954-12-20 | 1954-12-20 | Process for the treatment of boiler feed water |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB784750A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004026768A1 (en) * | 2002-09-17 | 2004-04-01 | The Boeing Company | Method and system for heat transfer |
| US7709434B2 (en) | 2007-05-04 | 2010-05-04 | Ecolab Inc. | Compositions including Ca and Mg ions and gluconate and methods employing them to reduce corrosion and etch |
-
1954
- 1954-12-20 GB GB3683254A patent/GB784750A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004026768A1 (en) * | 2002-09-17 | 2004-04-01 | The Boeing Company | Method and system for heat transfer |
| US6855257B2 (en) | 2002-09-17 | 2005-02-15 | The Boeing Company | Method and system for heat transfer |
| US7709434B2 (en) | 2007-05-04 | 2010-05-04 | Ecolab Inc. | Compositions including Ca and Mg ions and gluconate and methods employing them to reduce corrosion and etch |
| US7741262B2 (en) | 2007-05-04 | 2010-06-22 | Ecolab Inc. | Compositions including hardness ions and gluconate and methods employing them to reduce corrosion and etch |
| US7749329B2 (en) | 2007-05-04 | 2010-07-06 | Ecolab Inc. | Cleaning compositions containing water soluble magnesium compounds and methods of using them |
| US7919448B2 (en) | 2007-05-04 | 2011-04-05 | Ecolab Usa Inc. | Compositions including hardness ions and gluconate and methods employing them to reduce corrosion and etch |
| US7922827B2 (en) | 2007-05-04 | 2011-04-12 | Ecolab Usa Inc. | Cleaning compositions containing water soluble magnesium compounds and methods of using them |
| US7960329B2 (en) | 2007-05-04 | 2011-06-14 | Ecolab Usa Inc. | Compositions including magnesium ion, calcium ion, and silicate and methods employing them to reduce corrosion and etch |
| US8021493B2 (en) | 2007-05-04 | 2011-09-20 | Ecolab Usa Inc. | Method of reducing corrosion using a warewashing composition |
| US8071528B2 (en) | 2007-05-04 | 2011-12-06 | Ecolab Usa Inc. | Cleaning compositions with water insoluble conversion agents and methods of making and using them |
| US8207102B2 (en) | 2007-05-04 | 2012-06-26 | Ecolab Usa Inc. | Compositions including hardness ion and threshold agent and methods employing them to reduce corrosion and etch |
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