RU97120973A - METHOD OF OBTAINING HYPOCHLORITE BLEACHING COMPOSITIONS - Google Patents
METHOD OF OBTAINING HYPOCHLORITE BLEACHING COMPOSITIONSInfo
- Publication number
- RU97120973A RU97120973A RU97120973/12A RU97120973A RU97120973A RU 97120973 A RU97120973 A RU 97120973A RU 97120973/12 A RU97120973/12 A RU 97120973/12A RU 97120973 A RU97120973 A RU 97120973A RU 97120973 A RU97120973 A RU 97120973A
- Authority
- RU
- Russia
- Prior art keywords
- sodium
- preceding paragraphs
- heavy metal
- chelating agent
- composition
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims 15
- WQYVRQLZKVEZGA-UHFFFAOYSA-N Hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 title claims 6
- 238000004061 bleaching Methods 0.000 title claims 2
- 239000002738 chelating agent Substances 0.000 claims 7
- 229910001385 heavy metal Inorganic materials 0.000 claims 6
- 150000002500 ions Chemical class 0.000 claims 6
- -1 alkali metal hypochlorite Chemical class 0.000 claims 5
- 229910052783 alkali metal Inorganic materials 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 3
- 230000001376 precipitating Effects 0.000 claims 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims 3
- 239000011780 sodium chloride Substances 0.000 claims 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 claims 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims 2
- 229910052708 sodium Inorganic materials 0.000 claims 2
- 239000011734 sodium Substances 0.000 claims 2
- ABLZXFCXXLZCGV-UHFFFAOYSA-L CHEBI:8154 Chemical class [O-]P([O-])=O ABLZXFCXXLZCGV-UHFFFAOYSA-L 0.000 claims 1
- WJJMNDUMQPNECX-UHFFFAOYSA-N Dipicolinic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=N1 WJJMNDUMQPNECX-UHFFFAOYSA-N 0.000 claims 1
- 239000004115 Sodium Silicate Substances 0.000 claims 1
- CMZUMMUJMWNLFH-UHFFFAOYSA-N Sodium metavanadate Chemical compound [Na+].[O-][V](=O)=O CMZUMMUJMWNLFH-UHFFFAOYSA-N 0.000 claims 1
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L Sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims 1
- VPQBLCVGUWPDHV-UHFFFAOYSA-N Sodium selenide Chemical compound [Na+].[Na+].[Se-2] VPQBLCVGUWPDHV-UHFFFAOYSA-N 0.000 claims 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims 1
- MQRWPMGRGIILKQ-UHFFFAOYSA-N Sodium telluride Chemical compound [Na][Te][Na] MQRWPMGRGIILKQ-UHFFFAOYSA-N 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 125000003277 amino group Chemical group 0.000 claims 1
- 150000001642 boronic acid derivatives Chemical class 0.000 claims 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 238000010908 decantation Methods 0.000 claims 1
- CIMFXUNKOJVRNC-UHFFFAOYSA-L disodium;(4-nonylphenyl)-dioxido-oxo-$l^{5}-phosphane Chemical compound [Na+].[Na+].CCCCCCCCCC1=CC=C(P([O-])([O-])=O)C=C1 CIMFXUNKOJVRNC-UHFFFAOYSA-L 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 125000005843 halogen group Chemical group 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 125000004435 hydrogen atoms Chemical group [H]* 0.000 claims 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 150000003346 selenoethers Chemical class 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 150000004760 silicates Chemical class 0.000 claims 1
- 239000001187 sodium carbonate Substances 0.000 claims 1
- 229910000029 sodium carbonate Inorganic materials 0.000 claims 1
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 claims 1
- 235000018341 sodium sesquicarbonate Nutrition 0.000 claims 1
- 229910052911 sodium silicate Inorganic materials 0.000 claims 1
- 235000010339 sodium tetraborate Nutrition 0.000 claims 1
- 150000004772 tellurides Chemical class 0.000 claims 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 claims 1
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims 1
Claims (10)
когда n=1, К>105, предпочтительно К>5•105 и более предпочтительно К>106,
когда n=2, К>106, предпочтительно К>5•106 и более предпочтительно К>107,
когда n=3, К>107, предпочтительно К>5•107 и более предпочтительно К>108,
где n является числом молекул хелатообразующего агента на ион тяжелого металла и где K=(MLn)/(M) (L)n и (MLn) является концентрацией комплексов ионов тяжелого металла/хелатообразующий агент, (М) является концентрацией свободных ионов тяжелого металла, (L) является концентрацией свободных хелатообразующих агентов.2. The method according to p. 1, characterized in that the said chelating agent or its mixture has a binding constant for with respect to heavy metal ions, defined as follows:
when n = 1, K> 10 5 , preferably K> 5 • 10 5 and more preferably K> 10 6 ,
when n = 2, K> 10 6 , preferably K> 5 • 10 6 and more preferably K> 10 7 ,
when n = 3, K> 10 7 , preferably K> 5 • 10 7 and more preferably K> 10 8 ,
where n is the number of molecules of a chelating agent per heavy metal ion and where K = (MLn) / (M) (L) n and (MLn) is the concentration of complexes of heavy metal ions / chelating agent, (M) is the concentration of free ions of heavy metal, (L) is the concentration of free chelating agents.
в которых R является водородом, атомом галогена, гидроксильной группой, амино группой, карбоксильной группой или короткоцепочечной алкильной группой (C1-C4) и n равно 1 или 2 или их смеси; и предпочтительно выбирают из группы дипиколиновой кислоты, ее производных, или их смесей.3. The method according to any of the preceding paragraphs, characterized in that the chelating agent mentioned is a pyridine polycarboxylic acid, or its salt, having one of the following formulas:
in which R is hydrogen, a halogen atom, a hydroxyl group, an amino group, a carboxyl group or a short-chain alkyl group (C 1 -C 4 ) and n is 1 or 2, or a mixture thereof; and is preferably selected from the group of dipicolinic acid, its derivatives, or mixtures thereof.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95870055.1 | 1995-05-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
RU97120973A true RU97120973A (en) | 1999-11-10 |
Family
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