DE2923718A1 - Zusatz zur verhinderung von kesselsteinbildung in waessrigen medien - Google Patents
Zusatz zur verhinderung von kesselsteinbildung in waessrigen medienInfo
- Publication number
- DE2923718A1 DE2923718A1 DE19792923718 DE2923718A DE2923718A1 DE 2923718 A1 DE2923718 A1 DE 2923718A1 DE 19792923718 DE19792923718 DE 19792923718 DE 2923718 A DE2923718 A DE 2923718A DE 2923718 A1 DE2923718 A1 DE 2923718A1
- Authority
- DE
- Germany
- Prior art keywords
- acid
- water
- copolymer
- additive
- salt
- 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.)
- Ceased
Links
- 230000015572 biosynthetic process Effects 0.000 title claims description 11
- 229920001577 copolymer Polymers 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000002253 acid Substances 0.000 claims description 21
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 21
- AGBXYHCHUYARJY-UHFFFAOYSA-N 2-phenylethenesulfonic acid Chemical compound OS(=O)(=O)C=CC1=CC=CC=C1 AGBXYHCHUYARJY-UHFFFAOYSA-N 0.000 claims description 17
- 239000000654 additive Substances 0.000 claims description 15
- 150000003839 salts Chemical class 0.000 claims description 14
- 230000000996 additive effect Effects 0.000 claims description 11
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 10
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 239000012736 aqueous medium Substances 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- 150000002505 iron Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 235000002639 sodium chloride Nutrition 0.000 description 12
- 239000010802 sludge Substances 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000003750 conditioning effect Effects 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 150000007513 acids Chemical class 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 4
- 230000002195 synergetic effect Effects 0.000 description 4
- BAERPNBPLZWCES-UHFFFAOYSA-N (2-hydroxy-1-phosphonoethyl)phosphonic acid Chemical compound OCC(P(O)(O)=O)P(O)(O)=O BAERPNBPLZWCES-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 235000021317 phosphate Nutrition 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000001488 sodium phosphate Substances 0.000 description 3
- MNCGMVDMOKPCSQ-UHFFFAOYSA-M sodium;2-phenylethenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 MNCGMVDMOKPCSQ-UHFFFAOYSA-M 0.000 description 3
- QQVDJLLNRSOCEL-UHFFFAOYSA-N (2-aminoethyl)phosphonic acid Chemical compound [NH3+]CCP(O)([O-])=O QQVDJLLNRSOCEL-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 150000002903 organophosphorus compounds Chemical class 0.000 description 2
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 description 2
- QIFCIFLDTQJGHQ-UHFFFAOYSA-M potassium;2-phenylethenesulfonate Chemical compound [K+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 QIFCIFLDTQJGHQ-UHFFFAOYSA-M 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 159000000000 sodium salts Chemical class 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical class [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- YUEFGDDCJLELFH-UHFFFAOYSA-N (2-amino-1-phosphonoethyl)phosphonic acid Chemical compound NCC(P(O)(O)=O)P(O)(O)=O YUEFGDDCJLELFH-UHFFFAOYSA-N 0.000 description 1
- MJPWXCPGHYETKV-UHFFFAOYSA-N (3-hydroxy-1-phosphonopropyl)phosphonic acid Chemical compound OCCC(P(O)(O)=O)P(O)(O)=O MJPWXCPGHYETKV-UHFFFAOYSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- GLULCKCBVYGUDD-UHFFFAOYSA-N 2-phosphonobutane-1,1,1-tricarboxylic acid Chemical compound CCC(P(O)(O)=O)C(C(O)=O)(C(O)=O)C(O)=O GLULCKCBVYGUDD-UHFFFAOYSA-N 0.000 description 1
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 150000001414 amino alcohols Chemical class 0.000 description 1
- XDIJWRHVEDUFGP-UHFFFAOYSA-N azanium;2-phenylethenesulfonate Chemical compound [NH4+].[O-]S(=O)(=O)C=CC1=CC=CC=C1 XDIJWRHVEDUFGP-UHFFFAOYSA-N 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- MSJMDZAOKORVFC-UAIGNFCESA-L disodium maleate Chemical compound [Na+].[Na+].[O-]C(=O)\C=C/C([O-])=O MSJMDZAOKORVFC-UAIGNFCESA-L 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 description 1
- NFDRPXJGHKJRLJ-UHFFFAOYSA-N edtmp Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CCN(CP(O)(O)=O)CP(O)(O)=O NFDRPXJGHKJRLJ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- GATNOFPXSDHULC-UHFFFAOYSA-N ethylphosphonic acid Chemical compound CCP(O)(O)=O GATNOFPXSDHULC-UHFFFAOYSA-N 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- MBKDYNNUVRNNRF-UHFFFAOYSA-N medronic acid Chemical compound OP(O)(=O)CP(O)(O)=O MBKDYNNUVRNNRF-UHFFFAOYSA-N 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- ATLPLEZDTSBZQG-UHFFFAOYSA-N propan-2-ylphosphonic acid Chemical compound CC(C)P(O)(O)=O ATLPLEZDTSBZQG-UHFFFAOYSA-N 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 235000019983 sodium metaphosphate Nutrition 0.000 description 1
- 235000011008 sodium phosphates Nutrition 0.000 description 1
- WGRULTCAYDOGQK-UHFFFAOYSA-M sodium;sodium;hydroxide Chemical compound [OH-].[Na].[Na+] WGRULTCAYDOGQK-UHFFFAOYSA-M 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
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
- C02F5/14—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 phosphorus
Landscapes
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US91571378A | 1978-06-15 | 1978-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2923718A1 true DE2923718A1 (de) | 1979-12-20 |
Family
ID=25436161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19792923718 Ceased DE2923718A1 (de) | 1978-06-15 | 1979-06-12 | Zusatz zur verhinderung von kesselsteinbildung in waessrigen medien |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS551897A (enExample) |
| CA (1) | CA1114978A (enExample) |
| DE (1) | DE2923718A1 (enExample) |
| ES (1) | ES481476A1 (enExample) |
| FR (1) | FR2431999A1 (enExample) |
| GB (1) | GB2023121B (enExample) |
| IT (1) | IT1121786B (enExample) |
| SE (1) | SE431533B (enExample) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024247A1 (en) * | 1979-08-16 | 1981-02-25 | Calgon Corporation | Composition and method for the control of scale and deposits in gas-liquid separations |
| DE3230291A1 (de) * | 1981-08-18 | 1983-03-03 | Dearborn Chemicals Ltd., Widnes, Cheshire | Zusammensetzung zur verhinderung von kesselstein in waessrigen systemen |
| EP0092913A1 (en) * | 1982-04-26 | 1983-11-02 | Betz Europe, Inc. | Method of scrubbing flue gases |
| DE3405226A1 (de) * | 1983-02-16 | 1984-08-16 | Dearborn Chemical Co., Lake Zurich, Ill. | Zusammensetzung und verfahren zur unterdrueckung von kesselstein |
| CN107973425A (zh) * | 2017-12-13 | 2018-05-01 | 攀枝花钢城集团瑞天安全环保有限公司 | 复合缓蚀阻垢剂及其制备方法 |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4306991A (en) | 1979-09-18 | 1981-12-22 | Chemed Corporation | Scale inhibition |
| CA1151498A (en) * | 1979-10-23 | 1983-08-09 | Dearborn Chemicals Ltd. | Treatment of aqueous systems |
| JPS58199877A (ja) * | 1982-05-03 | 1983-11-21 | ナルコ・ケミカル・カンパニ− | 鉄金属の腐蝕防止用組成物及び方法 |
| US4581145A (en) * | 1982-09-27 | 1986-04-08 | Dearborn Chemical Company | Composition and method for inhibiting scale |
| CA1207211A (en) * | 1982-09-27 | 1986-07-08 | Dionisio G. Cuisia | Composition and method for inhibiting scale |
| US4556493A (en) * | 1983-02-16 | 1985-12-03 | Dearborn Chemical Company | Composition and method for inhibiting scale |
| US4576722A (en) * | 1983-02-22 | 1986-03-18 | The Mogul Corporation | Scale and sludge compositions for aqueous systems |
| EP0122013B1 (en) * | 1983-03-07 | 1988-12-21 | Calgon Corporation | Polymeric additives for water |
| GB8311002D0 (en) * | 1983-04-22 | 1983-05-25 | Unilever Plc | Detergent compositions |
| JPS63176871A (ja) * | 1987-01-17 | 1988-07-21 | Daihatsu Motor Co Ltd | トランスミツシヨンの潤滑装置 |
| DE19514272C2 (de) * | 1995-04-21 | 1997-02-20 | Amtra Aquaristik Gmbh | Mittel und Verfahren zur Regulierung der Härte und des pH-Wertes des Wassers von Süßwasseraquarien |
| EP0785174A1 (en) * | 1996-01-22 | 1997-07-23 | Monsanto Europe S.A./N.V. | Use of triaminophosphonates in cement |
| US6310031B1 (en) | 1999-11-30 | 2001-10-30 | Amway Corporation | Method of inhibiting soil redeposition |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2458704A1 (de) * | 1973-04-13 | 1976-06-16 | Chemed Corp | Verfahren zur verhinderung der abscheidung von kesselstein, schlamm und anderen verschmutzungsstoffen in waessrigen systemen |
| DE2740671A1 (de) * | 1976-11-17 | 1978-05-24 | Chemed Corp | Verfahren zur verhinderung der abscheidung von kesselstein auf mit wasser in beruehrung stehenden oberflaechen |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3549538A (en) * | 1967-06-22 | 1970-12-22 | Nalco Chemical Co | Scale inhibition and removal in steam generation |
| GB1414918A (en) * | 1973-02-14 | 1975-11-19 | Ciba Geigy Uk Ltd | Treatment of water to prevent the deposition of scale |
| ES438418A1 (es) * | 1974-06-10 | 1977-05-16 | Grace W R & Co | Procedimiento para inhibir la deposicion de incrustaciones sobre la superficie de intercambio termico de un evaporador. |
| JPS5175681A (ja) * | 1974-12-26 | 1976-06-30 | Chemed Corp | Mizujunkankeinitaisuru horiakurirusan hosupponsanshoriho |
| CA1062983A (en) * | 1975-09-08 | 1979-09-25 | Joseph J. Schuck | Copolymers for the control of the formation and deposition of materials in aqueous mediums |
| JPS5827349B2 (ja) * | 1975-11-25 | 1983-06-08 | 栗田工業株式会社 | 水系における腐食防止組成物 |
| SE435456B (sv) * | 1976-01-07 | 1984-10-01 | Calgon Corp | Komposition och forfarande for att kontrollera uppbyggnaden av pannsten i gastvettare |
| GB1539974A (en) * | 1976-11-10 | 1979-02-07 | Ciba Geigy Ag | Method of inhibiting corrosion and scaling of metals in contact with water |
-
1979
- 1979-05-30 CA CA328,648A patent/CA1114978A/en not_active Expired
- 1979-06-11 IT IT23459/79A patent/IT1121786B/it active
- 1979-06-12 JP JP7314479A patent/JPS551897A/ja active Granted
- 1979-06-12 DE DE19792923718 patent/DE2923718A1/de not_active Ceased
- 1979-06-12 FR FR7915042A patent/FR2431999A1/fr active Granted
- 1979-06-12 ES ES481476A patent/ES481476A1/es not_active Expired
- 1979-06-12 SE SE7905174A patent/SE431533B/sv not_active IP Right Cessation
- 1979-06-15 GB GB7920922A patent/GB2023121B/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2458704A1 (de) * | 1973-04-13 | 1976-06-16 | Chemed Corp | Verfahren zur verhinderung der abscheidung von kesselstein, schlamm und anderen verschmutzungsstoffen in waessrigen systemen |
| DE2740671A1 (de) * | 1976-11-17 | 1978-05-24 | Chemed Corp | Verfahren zur verhinderung der abscheidung von kesselstein auf mit wasser in beruehrung stehenden oberflaechen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024247A1 (en) * | 1979-08-16 | 1981-02-25 | Calgon Corporation | Composition and method for the control of scale and deposits in gas-liquid separations |
| DE3230291A1 (de) * | 1981-08-18 | 1983-03-03 | Dearborn Chemicals Ltd., Widnes, Cheshire | Zusammensetzung zur verhinderung von kesselstein in waessrigen systemen |
| EP0092913A1 (en) * | 1982-04-26 | 1983-11-02 | Betz Europe, Inc. | Method of scrubbing flue gases |
| DE3405226A1 (de) * | 1983-02-16 | 1984-08-16 | Dearborn Chemical Co., Lake Zurich, Ill. | Zusammensetzung und verfahren zur unterdrueckung von kesselstein |
| CN107973425A (zh) * | 2017-12-13 | 2018-05-01 | 攀枝花钢城集团瑞天安全环保有限公司 | 复合缓蚀阻垢剂及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1121786B (it) | 1986-04-23 |
| GB2023121B (en) | 1982-08-25 |
| SE7905174L (sv) | 1979-12-16 |
| JPS551897A (en) | 1980-01-09 |
| ES481476A1 (es) | 1980-07-01 |
| JPS6152760B2 (enExample) | 1986-11-14 |
| FR2431999A1 (fr) | 1980-02-22 |
| IT7923459A0 (it) | 1979-06-11 |
| SE431533B (sv) | 1984-02-13 |
| GB2023121A (en) | 1979-12-28 |
| CA1114978A (en) | 1981-12-22 |
| FR2431999B1 (enExample) | 1985-05-10 |
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