EP2946005A1 - System zum entfernen von eisenoxid von oberflächen - Google Patents
System zum entfernen von eisenoxid von oberflächenInfo
- Publication number
- EP2946005A1 EP2946005A1 EP14700562.3A EP14700562A EP2946005A1 EP 2946005 A1 EP2946005 A1 EP 2946005A1 EP 14700562 A EP14700562 A EP 14700562A EP 2946005 A1 EP2946005 A1 EP 2946005A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- removal
- iron oxide
- hedp
- treatment
- reducing agent
- 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.)
- Withdrawn
Links
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000004744 fabric Substances 0.000 claims abstract description 33
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 239000004753 textile Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 11
- XQRLCLUYWUNEEH-UHFFFAOYSA-N diphosphonic acid Chemical compound OP(=O)OP(O)=O XQRLCLUYWUNEEH-UHFFFAOYSA-N 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910003439 heavy metal oxide Inorganic materials 0.000 claims abstract description 6
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 18
- 239000011668 ascorbic acid Substances 0.000 claims description 9
- 235000010323 ascorbic acid Nutrition 0.000 claims description 9
- 229960005070 ascorbic acid Drugs 0.000 claims description 9
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 3
- 239000008103 glucose Substances 0.000 claims description 3
- 238000011109 contamination Methods 0.000 claims description 2
- 239000002759 woven fabric Substances 0.000 claims 5
- 239000004745 nonwoven fabric Substances 0.000 claims 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 27
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 10
- 235000006408 oxalic acid Nutrition 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- QXDMQSPYEZFLGF-UHFFFAOYSA-L calcium oxalate Chemical compound [Ca+2].[O-]C(=O)C([O-])=O QXDMQSPYEZFLGF-UHFFFAOYSA-L 0.000 description 5
- 238000004061 bleaching Methods 0.000 description 4
- 239000008139 complexing agent Substances 0.000 description 4
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000536 complexating effect Effects 0.000 description 2
- 238000009990 desizing Methods 0.000 description 2
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 description 2
- BXLLINKJZLDGOX-UHFFFAOYSA-N dimethoxyphosphorylmethanamine Chemical compound COP(=O)(CN)OC BXLLINKJZLDGOX-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 229910001448 ferrous ion Inorganic materials 0.000 description 2
- 235000003891 ferrous sulphate Nutrition 0.000 description 2
- 239000011790 ferrous sulphate Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 phosphor compound Chemical class 0.000 description 2
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000012028 Fenton's reagent Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229940028356 diethylene glycol monobutyl ether Drugs 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- MGZTXXNFBIUONY-UHFFFAOYSA-N hydrogen peroxide;iron(2+);sulfuric acid Chemical compound [Fe+2].OO.OS(O)(=O)=O MGZTXXNFBIUONY-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- JCGNDDUYTRNOFT-UHFFFAOYSA-N oxolane-2,4-dione Chemical compound O=C1COC(=O)C1 JCGNDDUYTRNOFT-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009999 singeing Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/267—Heterocyclic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/26—Organic compounds containing oxygen
- C11D7/268—Carbohydrates or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/36—Organic compounds containing phosphorus
Definitions
- the instant invention pertains to a new and more effective system for the removal of heavy metal oxides, especially of iron oxide, from textiles or fabrics.
- the contaminated fabric after singeing process which is a process to remove undesirable protruding fibers, is padded (pick-up 100 %) with oxalic acid and batched for 4 to 6 hours under rotation.
- the treated fabric is then washed to remove impurities that may have been dissolved as a result of the treatment.
- the washed fabric is then padded with alkaline solution of hydrogen peroxide to get a bleached fabric with varying degree of whiteness.
- US 278,176 describes oxalic acid in combination with terpentine or benzene for removing rust spots or stains from fabric.
- US 4,828,734 describes the use of oxalic acid together with ferrous ions and mineralic acids to remove rust from sold surfaces like toilet bowls, tubes, sinks etc.
- GB 2,157,322 describes the removal of iron oxide particles from surfaces by treatment with a solution of sequestring agent at pH of from 1 to 7.5, whereby the sequestring agent is an organic or inorganic phosphor compound.
- the object of the instant invention was to find a system for a better protection against iron pin holes during the peroxide bleaching of cellulosic fabric and simultaneously to find a suitable way to eliminate the formation of undesirable insoluble salt.
- the organic reducing agent is thereby selected from the group consition of ascorbic acid and glucose.
- the composition for the treatment comprises at least 50 wt.-% of HEDP, preferably at least 60 wt.-% and more preferred at least 70 wt.%, based on dry content of the composition, and the reducing agent in an amount of from 5 to 50 wt.-%, preferably from 10 to 40 wt.-%, based on dry content of the composition.
- the instant invention pertains additionally to a method for the removal of heavy metal oxides, especially of iron oxide, from surfaces, especially from textiles or fabrics, in which the surface or the textile or fabric is treated with a solution of Ethane-1 -hydroxy- 1 ,1 'diphosphonic acid (HEDP) in combination with an organic reducing agent in water.
- HEDP Ethane-1 -hydroxy- 1 ,1 'diphosphonic acid
- the method of the instant invention is preferably a one step process which replaces traditional desizing process. However, it may be performed also in two or more steps.
- the surface or textile or fabric is treated with the solution of Ethane-1 -hydroxy-1 ,1 'diphosphonic acid (HEDP) and an organic reducing agent in water at a temperature in the range of from 20 to 100 °C, preferably from 60 to 100 °C, most preferred from 80 to 100 °C.
- the time period for the treatment depends upon the contamination of the surface with heavy metal impurities. Preferably, the treatment is maintained over a time period of from
- the treatment according to the instant invention may take place in an open stirred vessel.
- other inorganic reducing agents like sodium dithionite or sodium sulphite, may be present during the treatment.
- pungent and irritating smell of some sulfur containing additives is not favourable for open production areas.
- ascorbic acid is the best choice according to the invention.
- Fabric treated with HEDP and ferrous sulphate was not able to yield the desired level of whiteness upon bleaching and hence the effectiveness is limited. Similary, being an open system for treatment, the use of sodium dithionite and sodium sulphite is restricted due to the unpleasant, penetrating odor.
- Fabric treated with HEDP and ascorbic acid yields the desired level of whitenss in the subsequent bleaching process. The bleached fabric yields the desired level of whiteness without localized catalytic damage.
- DTPMP Diethylene-triamine pentamethylene phosphonic acid
- ATMP Amino-trimethyl phosphonic acid
- Oxalic acid (analytica grade) was taken as a reference as it is widely reported to be effective in iron oxide dissolution.
- Ethane-1 -hydroxy-1 ,1 'diphosphonic acid is commercially available in liquid with 60 % active content and as 98 % white crystalline powder. Both forms were experimented and found effective in the current study. By the subsequently following experimental part the invention will be disclosed and illustrated in more detail for the artisan without to establish any limitation to the specified embodiments.
- Working examples 1 to 6 are commercially available in liquid with 60 % active content and as 98 % white crystalline powder. Both forms were experimented and found effective in the current study. By the subsequently following experimental part the invention will be disclosed and illustrated in more detail for the artisan without to establish any limitation to the specified embodiments.
- example 3 comprising the combiantion of HEDP with ascorbic acid as the reducing agent did approach the best result.
- HOSTAPAL MRN liq Cone is a non-ionic wetting agent to improve fabric pick-up. It is a mixture of 75 to 85 % ethoxylated fatty alcohols and 4 to 8 % diethylene glycol monobutyl ether with 1 to 2 % cloud point anti-foam.
- STABILIZER SIFA liq** is a modified polyacrylate and is used to stabilize the depletion of hydrogen peroxide under alkaline conditions.
- TEGEWA * * * is a measure to access the presence of starch on the fabric. 2
- CAPILLARY **** is an indicative of fabric absorbancy (a desired feature after bleaching) 3
- Example 15 is able to achieve or surpass the performance of conventional processes using oxalic acid (example 13).
- System based on Ferrous Sulphate and HEDP is not able to achieve the desired level of whiteness. This is attributed to poor stability of hydrogen peroxide in presence of ferrous ions.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Molecular Biology (AREA)
- Inorganic Chemistry (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP14700562.3A EP2946005A1 (de) | 2013-01-17 | 2014-01-17 | System zum entfernen von eisenoxid von oberflächen |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13000245 | 2013-01-17 | ||
| PK13713 | 2013-03-07 | ||
| EP14700562.3A EP2946005A1 (de) | 2013-01-17 | 2014-01-17 | System zum entfernen von eisenoxid von oberflächen |
| PCT/EP2014/000129 WO2014111267A1 (en) | 2013-01-17 | 2014-01-17 | System for the removal of iron oxide from surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2946005A1 true EP2946005A1 (de) | 2015-11-25 |
Family
ID=51209040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14700562.3A Withdrawn EP2946005A1 (de) | 2013-01-17 | 2014-01-17 | System zum entfernen von eisenoxid von oberflächen |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2946005A1 (de) |
| WO (1) | WO2014111267A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017203087A (ja) * | 2016-05-10 | 2017-11-16 | ユシロ化学工業株式会社 | さび除去剤組成物 |
| DE102018101060A1 (de) | 2018-01-18 | 2019-07-18 | CHT Germany GmbH | Verfahren zur Entfernung von Manganoxid-Ablagerungen von textilen Oberflächen |
| EP3662105A1 (de) * | 2017-10-25 | 2020-06-10 | CHT Germany GmbH | Verfahren zur entfernung von manganoxid-ablagerungen von textilen oberflächen |
| DE102017125010A1 (de) | 2017-10-25 | 2019-04-25 | CHT Germany GmbH | Verfahren zur Entfernung von Manganoxid-Ablagerungen von textilen Oberflächen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US278176A (en) | 1883-05-22 | Compound for removing rust spots or stains from fabrics | ||
| GB2157322B (en) | 1984-03-29 | 1987-10-21 | Diversey Limited | Removal of iron oxide deposits |
| US4828734A (en) | 1985-08-27 | 1989-05-09 | Mobil Oil Corporation | Grease compositions containing borated oxazoline compounds and hydroxy-containing soap thickeners |
| US4810405A (en) * | 1987-10-21 | 1989-03-07 | Dearborn Chemical Company, Limited | Rust removal and composition thereof |
| WO2002036504A2 (en) * | 2000-11-03 | 2002-05-10 | Ge Betz, Inc. | Method for cleaning blinded filter media and preventing filter blinding |
| US6846788B2 (en) * | 2001-06-07 | 2005-01-25 | Ecolab Inc. | Methods for removing silver-oxide |
| EP1652969A1 (de) * | 2004-10-28 | 2006-05-03 | Henkel Kommanditgesellschaft auf Aktien | Entrostungszusammensetzung und Entrostungsverfahren |
-
2014
- 2014-01-17 EP EP14700562.3A patent/EP2946005A1/de not_active Withdrawn
- 2014-01-17 WO PCT/EP2014/000129 patent/WO2014111267A1/en not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2014111267A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014111267A1 (en) | 2014-07-24 |
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