NO309977B1 - Sementblanding i tørr form, samt fremgangsmÕte for reduksjon av mengden av vannløselig kromat i en tørr sementblanding - Google Patents
Sementblanding i tørr form, samt fremgangsmÕte for reduksjon av mengden av vannløselig kromat i en tørr sementblanding Download PDFInfo
- Publication number
- NO309977B1 NO309977B1 NO923937A NO923937A NO309977B1 NO 309977 B1 NO309977 B1 NO 309977B1 NO 923937 A NO923937 A NO 923937A NO 923937 A NO923937 A NO 923937A NO 309977 B1 NO309977 B1 NO 309977B1
- Authority
- NO
- Norway
- Prior art keywords
- cement
- manganese
- water
- sulphate
- mixture
- Prior art date
Links
- 239000004568 cement Substances 0.000 title claims abstract description 162
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 239000000203 mixture Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000010828 elution Methods 0.000 claims abstract description 12
- 239000000706 filtrate Substances 0.000 claims abstract description 9
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 3
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 claims description 74
- 229910000357 manganese(II) sulfate Inorganic materials 0.000 claims description 28
- 239000000243 solution Substances 0.000 claims description 28
- 239000000843 powder Substances 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 13
- 239000011572 manganese Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 10
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 8
- 239000004567 concrete Substances 0.000 claims description 8
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 7
- 239000011398 Portland cement Substances 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 3
- 239000000920 calcium hydroxide Substances 0.000 claims description 3
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000012779 reinforcing material Substances 0.000 claims description 2
- 239000003340 retarding agent Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000008030 superplasticizer Substances 0.000 claims description 2
- -1 manganese(II) compound Chemical class 0.000 abstract description 2
- 239000011651 chromium Substances 0.000 description 17
- 238000005259 measurement Methods 0.000 description 11
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 10
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical class [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 9
- 238000000227 grinding Methods 0.000 description 9
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000011088 calibration curve Methods 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 239000008186 active pharmaceutical agent Substances 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000003153 chemical reaction reagent Substances 0.000 description 5
- 239000010440 gypsum Substances 0.000 description 5
- 229910052602 gypsum Inorganic materials 0.000 description 5
- 239000012086 standard solution Substances 0.000 description 5
- KSPIHGBHKVISFI-UHFFFAOYSA-N Diphenylcarbazide Chemical compound C=1C=CC=CC=1NNC(=O)NNC1=CC=CC=C1 KSPIHGBHKVISFI-UHFFFAOYSA-N 0.000 description 4
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 4
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 4
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 4
- 239000011565 manganese chloride Substances 0.000 description 4
- 235000002867 manganese chloride Nutrition 0.000 description 4
- 239000011702 manganese sulphate Substances 0.000 description 4
- 235000007079 manganese sulphate Nutrition 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000012482 calibration solution Substances 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 229940099596 manganese sulfate Drugs 0.000 description 3
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 description 3
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 239000012286 potassium permanganate Substances 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011656 manganese carbonate Substances 0.000 description 2
- 235000006748 manganese carbonate Nutrition 0.000 description 2
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- VASIZKWUTCETSD-UHFFFAOYSA-N oxomanganese Chemical compound [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZYECOAILUNWEAL-NUDFZHEQSA-N (4z)-4-[[2-methoxy-5-(phenylcarbamoyl)phenyl]hydrazinylidene]-n-(3-nitrophenyl)-3-oxonaphthalene-2-carboxamide Chemical compound COC1=CC=C(C(=O)NC=2C=CC=CC=2)C=C1N\N=C(C1=CC=CC=C1C=1)/C(=O)C=1C(=O)NC1=CC=CC([N+]([O-])=O)=C1 ZYECOAILUNWEAL-NUDFZHEQSA-N 0.000 description 1
- 201000004624 Dermatitis Diseases 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- XBDUTCVQJHJTQZ-UHFFFAOYSA-L iron(2+) sulfate monohydrate Chemical compound O.[Fe+2].[O-]S([O-])(=O)=O XBDUTCVQJHJTQZ-UHFFFAOYSA-L 0.000 description 1
- XNCMOUSLNOHBKY-UHFFFAOYSA-H iron(3+);trisulfate;heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O XNCMOUSLNOHBKY-UHFFFAOYSA-H 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- RETNOKWGJNESQA-UHFFFAOYSA-L manganese(2+);carbonate;hydrate Chemical compound O.[Mn+2].[O-]C([O-])=O RETNOKWGJNESQA-UHFFFAOYSA-L 0.000 description 1
- CESXSDZNZGSWSP-UHFFFAOYSA-L manganese(2+);diacetate;tetrahydrate Chemical compound O.O.O.O.[Mn+2].CC([O-])=O.CC([O-])=O CESXSDZNZGSWSP-UHFFFAOYSA-L 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- CNFDGXZLMLFIJV-UHFFFAOYSA-L manganese(II) chloride tetrahydrate Chemical compound O.O.O.O.[Cl-].[Cl-].[Mn+2] CNFDGXZLMLFIJV-UHFFFAOYSA-L 0.000 description 1
- ISPYRSDWRDQNSW-UHFFFAOYSA-L manganese(II) sulfate monohydrate Chemical compound O.[Mn+2].[O-]S([O-])(=O)=O ISPYRSDWRDQNSW-UHFFFAOYSA-L 0.000 description 1
- TWJXYBSUGSKHPM-UHFFFAOYSA-N manganese;sulfane Chemical compound S.[Mn] TWJXYBSUGSKHPM-UHFFFAOYSA-N 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2103/00—Function or property of ingredients for mortars, concrete or artificial stone
- C04B2103/0004—Compounds chosen for the nature of their cations
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B2111/1075—Chromium-free or very low chromium-content materials
- C04B2111/1081—Chromium VI, e.g. for avoiding chromium eczema
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Food Science & Technology (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Processing Of Solid Wastes (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK093690A DK93690D0 (da) | 1990-04-11 | 1990-04-11 | Cementkomposition |
| PCT/DK1991/000098 WO1991015435A1 (en) | 1990-04-11 | 1991-04-10 | A cement composition and methods for producing same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO923937L NO923937L (no) | 1992-10-09 |
| NO923937D0 NO923937D0 (no) | 1992-10-09 |
| NO309977B1 true NO309977B1 (no) | 2001-04-30 |
Family
ID=8099192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO923937A NO309977B1 (no) | 1990-04-11 | 1992-10-09 | Sementblanding i tørr form, samt fremgangsmÕte for reduksjon av mengden av vannløselig kromat i en tørr sementblanding |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5362321A (da) |
| EP (1) | EP0524999B1 (da) |
| AT (1) | ATE139987T1 (da) |
| AU (1) | AU647118B2 (da) |
| CA (1) | CA2080379A1 (da) |
| DE (1) | DE69120672T2 (da) |
| DK (2) | DK93690D0 (da) |
| FI (1) | FI103504B1 (da) |
| IE (1) | IE76464B1 (da) |
| IS (1) | IS1722B (da) |
| NO (1) | NO309977B1 (da) |
| WO (1) | WO1991015435A1 (da) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4321077A1 (de) | 1993-06-24 | 1995-01-05 | Dyckerhoff Ag | Verfahren zur Depression der Allergien verursachenden Wirkung von wasserlöslichem Cr·V··I· in Zementen und/oder zementhaltigen Zubereitungen |
| US5792384A (en) * | 1997-01-31 | 1998-08-11 | Warren; James R. | Concrete masons' hand rinse |
| EP0960865A1 (de) * | 1998-05-25 | 1999-12-01 | Chemische Werke Zell-Wildshausen GMBH | Mittel zur Reduzierung von Chrom (VI)-Ionen in einer hydraulisch abbindenden Masse |
| DE19832127A1 (de) * | 1998-07-17 | 2000-05-04 | Ardex Gmbh | Shigait bildende Bindemittelmischung |
| JP4557483B2 (ja) * | 2000-01-31 | 2010-10-06 | ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット | 水和性セメント質組成物の検定方法 |
| DE10157129C2 (de) * | 2001-11-21 | 2003-10-30 | Ferro Duo Gmbh | Verfahren zur Herstellung eines hydraulischen Bindemittels |
| DE20321107U1 (de) * | 2003-07-17 | 2005-12-15 | Kerr-Mcgee Pigments Gmbh | Zubereitung zur Reduktion des löslichen Chromatgehaltes in Zement |
| DE10335363B3 (de) * | 2003-08-01 | 2005-04-07 | Dr. Paul Lohmann Gmbh Kg | Verwendung einer Lösung und Verfahren zur Herstellung eines Mittels zur Reduzierung von Chromanteilen in einer Zementverbindung sowie danach hergestelltes Mittel |
| FR2858612B1 (fr) * | 2003-08-08 | 2006-02-24 | Chryso Sas | Suspension aqueuse colloidale d'hydroxyde d'etain destinee a la reduction de chrome dans le ciment |
| JP4712719B2 (ja) * | 2003-11-21 | 2011-06-29 | ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット | 硫酸塩分散クロム酸塩還元剤 |
| CA2553659A1 (en) * | 2004-02-04 | 2005-08-25 | W.R. Grace & Co.-Conn. | Liquid additive for intergrinding cement |
| ATE354553T1 (de) * | 2004-03-23 | 2007-03-15 | Gruppo Chimico Dalton S P A | Verfahren zur herstellung von chromatreduziertem zement |
| ATE485248T1 (de) * | 2004-11-25 | 2010-11-15 | Mapei Spa | Zusatzmittel zur herstellung von chromatfreiem zement |
| GB2426514A (en) * | 2005-05-24 | 2006-11-29 | William Blythe Ltd | Chromium VI reduced cements |
| US20070034118A1 (en) * | 2005-08-12 | 2007-02-15 | Jardine Leslie A | Dosage efficient, storage stable compositions for reducing chromium (VI) in cement |
| DE102005044941A1 (de) * | 2005-09-20 | 2007-03-22 | Eric Blauenstein | Verfahren und Mittel zur reduktiven Chromatentgiftung von Zementzubereitungen |
| US7435518B2 (en) * | 2005-10-03 | 2008-10-14 | Xerox Corporation | Method of treating an electrophotographic-imaging member with a rare earth material |
| US7296626B2 (en) * | 2005-11-08 | 2007-11-20 | Halliburton Energy Services, Inc. | Liquid additive for reducing water-soluble chromate |
| ITMI20120764A1 (it) | 2012-05-07 | 2013-11-08 | Mapei Spa | Additivo per cemento portland costituito da un riducente incapsulato in una matrice polimerica |
| CN113087428B (zh) * | 2021-03-26 | 2022-06-07 | 唐山冀东水泥外加剂有限责任公司 | 一种降铬剂及其制备方法和水泥 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE224840C (da) * | 1909-05-11 | 1910-07-29 | ||
| US1865021A (en) * | 1929-11-08 | 1932-06-28 | Yosemite Portland Cement Corp | Cement and process of making |
| IS1443B6 (is) * | 1980-12-17 | 1990-12-14 | Aalborg Portland A/S | thurr sementsblanda |
| US4584691A (en) * | 1983-08-15 | 1986-04-22 | Herr Ernest A | Timed pulse communication system |
-
1990
- 1990-04-11 DK DK093690A patent/DK93690D0/da not_active Application Discontinuation
-
1991
- 1991-04-10 EP EP91907474A patent/EP0524999B1/en not_active Expired - Lifetime
- 1991-04-10 AU AU76710/91A patent/AU647118B2/en not_active Ceased
- 1991-04-10 DE DE69120672T patent/DE69120672T2/de not_active Expired - Fee Related
- 1991-04-10 DK DK91907474.0T patent/DK0524999T3/da active
- 1991-04-10 US US07/938,046 patent/US5362321A/en not_active Expired - Lifetime
- 1991-04-10 CA CA002080379A patent/CA2080379A1/en not_active Abandoned
- 1991-04-10 WO PCT/DK1991/000098 patent/WO1991015435A1/en active IP Right Grant
- 1991-04-10 AT AT91907474T patent/ATE139987T1/de not_active IP Right Cessation
- 1991-04-11 IE IE122291A patent/IE76464B1/en not_active IP Right Cessation
- 1991-04-11 IS IS3689A patent/IS1722B/is unknown
-
1992
- 1992-10-09 FI FI924585A patent/FI103504B1/fi active
- 1992-10-09 NO NO923937A patent/NO309977B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US5362321A (en) | 1994-11-08 |
| NO923937L (no) | 1992-10-09 |
| DE69120672D1 (de) | 1996-08-08 |
| FI924585A0 (fi) | 1992-10-09 |
| NO923937D0 (no) | 1992-10-09 |
| FI103504B (fi) | 1999-07-15 |
| FI103504B1 (fi) | 1999-07-15 |
| AU7671091A (en) | 1991-10-30 |
| WO1991015435A1 (en) | 1991-10-17 |
| EP0524999B1 (en) | 1996-07-03 |
| DK0524999T3 (da) | 1996-10-28 |
| IE911222A1 (en) | 1991-10-23 |
| IS1722B (is) | 1999-07-26 |
| AU647118B2 (en) | 1994-03-17 |
| FI924585A (fi) | 1992-10-09 |
| CA2080379A1 (en) | 1991-10-12 |
| IE76464B1 (en) | 1997-10-22 |
| EP0524999A1 (en) | 1993-02-03 |
| IS3689A7 (is) | 1991-10-12 |
| ATE139987T1 (de) | 1996-07-15 |
| DE69120672T2 (de) | 1997-03-06 |
| DK93690D0 (da) | 1990-04-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK1K | Patent expired |