GB1059198A - Inhibition of scale formation in steam generation - Google Patents
Inhibition of scale formation in steam generationInfo
- Publication number
- GB1059198A GB1059198A GB38058/65A GB3805865A GB1059198A GB 1059198 A GB1059198 A GB 1059198A GB 38058/65 A GB38058/65 A GB 38058/65A GB 3805865 A GB3805865 A GB 3805865A GB 1059198 A GB1059198 A GB 1059198A
- Authority
- GB
- United Kingdom
- Prior art keywords
- water
- scale formation
- acid
- inhibition
- steam generation
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/144—Aminocarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G3/00—Rotary appliances
- F28G3/16—Rotary appliances using jets of fluid for removing debris
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Scale formation is removed and inhibited in boilers in steam generators by incorporating with the water from which steam is generated under pressures ranging from 15 to 1100 psi. an alkali metal salt of nitrilotricarboxylic acid, e.g. a dosage of 0.1 - 1000 ppm of tri-sodium nitrilotri-acetate, and boiling the water. The pH of the boiling water is preferably made at least 9 e.g. by adding NaOH, Na2CO3 or an alkaline phosphate. Li or K salts of the said acid may be used, in which the carboxylic acid groups may be acetic or propionic acid. The salt may be added in the form of a solution or as brignettes also containing soda ash or phosphates.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US412336A US3296027A (en) | 1964-11-19 | 1964-11-19 | Removal and inhibition of scale formation in steam generation |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1059198A true GB1059198A (en) | 1967-02-15 |
Family
ID=23632594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB38058/65A Expired GB1059198A (en) | 1964-11-19 | 1965-09-06 | Inhibition of scale formation in steam generation |
Country Status (4)
Country | Link |
---|---|
US (1) | US3296027A (en) |
DE (1) | DE1517473A1 (en) |
ES (1) | ES317585A1 (en) |
GB (1) | GB1059198A (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3430641A (en) * | 1966-02-16 | 1969-03-04 | Nalco Chemical Co | Method of redispersing deposits |
US3520813A (en) * | 1966-11-03 | 1970-07-21 | Betz Laboratories | Method and composition for controlling boiler scale formation |
US3549538A (en) * | 1967-06-22 | 1970-12-22 | Nalco Chemical Co | Scale inhibition and removal in steam generation |
US3518204A (en) * | 1967-11-01 | 1970-06-30 | Betz Laboratories | Control of the rate of precipitate growth and of precipitation in aqueous systems |
US3956164A (en) * | 1974-09-23 | 1976-05-11 | Calgon Corporation | Chelating agents |
US4457847B2 (en) * | 1981-11-05 | 1996-12-31 | Nalco Chemical Co | Carboxylate polymers for internal scale control agents in boiler systems |
US4775491A (en) * | 1983-08-10 | 1988-10-04 | Nuclear Technology Corp. | Hydrazides of amino-polyacetic acids as chelants |
US4726907A (en) * | 1983-08-10 | 1988-02-23 | Nuclear Technology Corp | Hydrazides of amino-polyacetic acids as chelants |
US4708805A (en) * | 1986-11-24 | 1987-11-24 | Muhala Thomas F D | Barium sulfate removal and anti-deposition compositions and process of use therefor |
ES2023397B3 (en) * | 1986-12-01 | 1992-01-16 | Siemens Ag | PROCEDURE FOR CLEANING A CONTAINER. |
FR2641370B1 (en) * | 1988-12-29 | 1994-05-27 | Henkel France | PRODUCT FOR THE CLEANING OF PLATE EXCHANGERS ESPECIALLY IN THE NUCLEAR INDUSTRY AS WELL AS PROCESS IMPLEMENTED WHEN USING THIS PRODUCT |
US5276965A (en) * | 1992-02-13 | 1994-01-11 | The Atlantic Group, Inc. | Method for dismantling potentially contaminated tubes from a tube bundle |
US20120006671A1 (en) * | 2010-07-07 | 2012-01-12 | General Electric Company | Control of scale formation in produced water evaporators |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2240957A (en) * | 1935-10-30 | 1941-05-06 | Gen Aniline & Film Corp | Process for avoiding and rendering harmless the precipitates of water insoluble metal salts |
USRE23085E (en) * | 1940-04-22 | 1949-02-22 | Prevention of foamtttg in steam | |
US2396938A (en) * | 1944-01-22 | 1946-03-19 | Martin Dennis Company | Method of treating boilers |
GB873488A (en) * | 1956-12-19 | 1961-07-26 | Benckiser Gmbh Joh A | A method for counteracting the formation of precipitates and discolourations and forsequestering iron in an aqueous medium containing iron |
US3099521A (en) * | 1960-10-03 | 1963-07-30 | Dow Chemical Co | Water treatment |
DE1222444B (en) * | 1961-10-13 | 1966-08-04 | Bayer Ag | Procedure to prevent stone deposits and corrosion |
-
1964
- 1964-11-19 US US412336A patent/US3296027A/en not_active Expired - Lifetime
-
1965
- 1965-09-06 GB GB38058/65A patent/GB1059198A/en not_active Expired
- 1965-09-18 ES ES0317585A patent/ES317585A1/en not_active Expired
- 1965-10-08 DE DE19651517473 patent/DE1517473A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1517473A1 (en) | 1969-12-11 |
US3296027A (en) | 1967-01-03 |
ES317585A1 (en) | 1966-04-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1059198A (en) | Inhibition of scale formation in steam generation | |
GB1369429A (en) | Treatment of water or aqueous systems | |
US2505457A (en) | Method of inhibiting scale | |
GB1042460A (en) | An improved method of evaporating caustic | |
GB1327115A (en) | Detergent compositions | |
GB818151A (en) | Improvements in or relating to decontaminants or cleansing compositions | |
GB1104429A (en) | Method and system for feedwater treatment | |
US3356073A (en) | Method of operating high pressure steam generators | |
GB610725A (en) | A method of treating feed water for steam boilers | |
GB949260A (en) | Improvements in method of treating calcium carbonate | |
SU66898A1 (en) | The method of water treatment in steam boilers | |
FR2027347A1 (en) | Carbonate free water contng no free car- - bon dioxide | |
Fursenko et al. | Solubility of Aluminum Hydroxide in Water and Its Transition Into High-Pressure Steam | |
GB1015107A (en) | Improvements in or relating to cyclohexylamine sulphamic acid salts | |
GB1022733A (en) | Triaminobenzene | |
GB798799A (en) | Method of continuous bleaching of cotton fabrics | |
GB632246A (en) | Process of preventing corrosion of metal by acidic steam condensate | |
GB542751A (en) | A process for the descaling of steam boilers and prevention of subsequent scale deposits therein | |
GB395189A (en) | Method of and apparatus for generating steam | |
SU451635A1 (en) | Method for chemical treatment of feedwater for high pressure steam generators | |
GB1093401A (en) | Production of salts of amino carboxylic acids | |
GB568000A (en) | Improvements in or relating to the prevention of scale formation from water | |
GB787143A (en) | Controlling the deposition of salts in the tube systems of steam generators | |
GB625642A (en) | Method for increasing the resistance of stainless steel devices to corroding media | |
GB787099A (en) | Controlling the deposition of salts in the tube systems of steam generators |