CN115010231A - Stabilizer of polyferric coagulant and application thereof - Google Patents
Stabilizer of polyferric coagulant and application thereof Download PDFInfo
- Publication number
- CN115010231A CN115010231A CN202210801974.4A CN202210801974A CN115010231A CN 115010231 A CN115010231 A CN 115010231A CN 202210801974 A CN202210801974 A CN 202210801974A CN 115010231 A CN115010231 A CN 115010231A
- Authority
- CN
- China
- Prior art keywords
- polyferric
- stabilizer
- coagulant
- lignosulfonate
- sodium
- 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.)
- Granted
Links
- 239000000701 coagulant Substances 0.000 title claims abstract description 51
- 239000003381 stabilizer Substances 0.000 title claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000008367 deionised water Substances 0.000 claims abstract description 29
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 29
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 17
- 229940070710 valerate Drugs 0.000 claims abstract description 16
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims abstract description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- SZHQPBJEOCHCKM-UHFFFAOYSA-N 2-phosphonobutane-1,2,4-tricarboxylic acid Chemical compound OC(=O)CCC(P(O)(O)=O)(C(O)=O)CC(O)=O SZHQPBJEOCHCKM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000002360 preparation method Methods 0.000 claims description 18
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 6
- 229920000141 poly(maleic anhydride) Polymers 0.000 claims description 6
- 229920005646 polycarboxylate Polymers 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 229960003975 potassium Drugs 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 claims description 6
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 229920001577 copolymer Polymers 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 4
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims description 4
- 239000005695 Ammonium acetate Substances 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 235000019257 ammonium acetate Nutrition 0.000 claims description 4
- 229940043376 ammonium acetate Drugs 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- -1 magnesium 2-phosphonobutane-1, 2, 4-tricarboxylate Chemical compound 0.000 claims description 4
- 229940091250 magnesium supplement Drugs 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 4
- YWYZEGXAUVWDED-UHFFFAOYSA-N triammonium citrate Chemical compound [NH4+].[NH4+].[NH4+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O YWYZEGXAUVWDED-UHFFFAOYSA-N 0.000 claims description 4
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 3
- 229920005550 ammonium lignosulfonate Polymers 0.000 claims description 3
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 3
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 3
- 235000011056 potassium acetate Nutrition 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000001632 sodium acetate Substances 0.000 claims description 3
- 235000017281 sodium acetate Nutrition 0.000 claims description 3
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 3
- CCUJQAYWGVMIMO-UHFFFAOYSA-K trisodium;3-carboxy-6-hydroxy-6-oxo-3-phosphonatohexanoate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(C([O-])=O)(P(O)(=O)O)CCC([O-])=O CCUJQAYWGVMIMO-UHFFFAOYSA-K 0.000 claims description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- CBHNGGONXSATPZ-UHFFFAOYSA-N [NH4+].[NH4+].[NH4+].P(=O)(O)(O)C(CC(=O)[O-])(CCC(=O)[O-])C(=O)[O-] Chemical compound [NH4+].[NH4+].[NH4+].P(=O)(O)(O)C(CC(=O)[O-])(CCC(=O)[O-])C(=O)[O-] CBHNGGONXSATPZ-UHFFFAOYSA-N 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- FNAQSUUGMSOBHW-UHFFFAOYSA-H calcium citrate Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O FNAQSUUGMSOBHW-UHFFFAOYSA-H 0.000 claims description 2
- 239000001354 calcium citrate Substances 0.000 claims description 2
- 229960004256 calcium citrate Drugs 0.000 claims description 2
- 229960002413 ferric citrate Drugs 0.000 claims description 2
- NPFOYSMITVOQOS-UHFFFAOYSA-K iron(III) citrate Chemical compound [Fe+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NPFOYSMITVOQOS-UHFFFAOYSA-K 0.000 claims description 2
- 239000004337 magnesium citrate Substances 0.000 claims description 2
- 229960005336 magnesium citrate Drugs 0.000 claims description 2
- 235000002538 magnesium citrate Nutrition 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims description 2
- 239000001508 potassium citrate Substances 0.000 claims description 2
- 229960002635 potassium citrate Drugs 0.000 claims description 2
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 claims description 2
- 235000011082 potassium citrates Nutrition 0.000 claims description 2
- 229920005614 potassium polyacrylate Polymers 0.000 claims description 2
- 239000001509 sodium citrate Substances 0.000 claims description 2
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 2
- 159000000000 sodium salts Chemical class 0.000 claims description 2
- 235000013337 tricalcium citrate Nutrition 0.000 claims description 2
- PLSARIKBYIPYPF-UHFFFAOYSA-H trimagnesium dicitrate Chemical compound [Mg+2].[Mg+2].[Mg+2].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O.[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O PLSARIKBYIPYPF-UHFFFAOYSA-H 0.000 claims description 2
- BJZOJDVXMSHAMP-UHFFFAOYSA-K tripotassium 2-phosphonobutane-1,2,4-tricarboxylate Chemical compound [K+].P(=O)(O)(O)C(CC(=O)[O-])(CCC(=O)[O-])C(=O)[O-].[K+].[K+] BJZOJDVXMSHAMP-UHFFFAOYSA-K 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 7
- 229910019142 PO4 Inorganic materials 0.000 abstract description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 abstract description 5
- 239000010452 phosphate Substances 0.000 abstract description 5
- 239000003814 drug Substances 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 3
- 229910052816 inorganic phosphate Inorganic materials 0.000 abstract description 3
- 238000005063 solubilization Methods 0.000 abstract description 3
- 230000007928 solubilization Effects 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000013329 compounding Methods 0.000 abstract description 2
- 239000011574 phosphorus Substances 0.000 abstract description 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 20
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 18
- 238000010907 mechanical stirring Methods 0.000 description 18
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 14
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- SURQXAFEQWPFPV-UHFFFAOYSA-L iron(2+) sulfate heptahydrate Chemical compound O.O.O.O.O.O.O.[Fe+2].[O-]S([O-])(=O)=O SURQXAFEQWPFPV-UHFFFAOYSA-L 0.000 description 12
- 229940044631 ferric chloride hexahydrate Drugs 0.000 description 7
- NQXWGWZJXJUMQB-UHFFFAOYSA-K iron trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].Cl[Fe+]Cl NQXWGWZJXJUMQB-UHFFFAOYSA-K 0.000 description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 102100036218 DNA replication complex GINS protein PSF2 Human genes 0.000 description 4
- 101000736065 Homo sapiens DNA replication complex GINS protein PSF2 Proteins 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229940032296 ferric chloride Drugs 0.000 description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- AMVQGJHFDJVOOB-UHFFFAOYSA-H aluminium sulfate octadecahydrate Chemical compound O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O AMVQGJHFDJVOOB-UHFFFAOYSA-H 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000403 monosodium phosphate Inorganic materials 0.000 description 2
- 235000019799 monosodium phosphate Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 2
- PHIQPXBZDGYJOG-UHFFFAOYSA-N sodium silicate nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Na+].[Na+].[O-][Si]([O-])=O PHIQPXBZDGYJOG-UHFFFAOYSA-N 0.000 description 2
- LHYPLJGBYPAQAK-UHFFFAOYSA-M sodium;pentanoate Chemical compound [Na+].CCCCC([O-])=O LHYPLJGBYPAQAK-UHFFFAOYSA-M 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- HKOFYHZIMHRMSJ-UHFFFAOYSA-K trichloroalumane nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Al+3].[Cl-].[Cl-].[Cl-] HKOFYHZIMHRMSJ-UHFFFAOYSA-K 0.000 description 2
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 1
- 101100242958 Arabidopsis thaliana PCFS1 gene Proteins 0.000 description 1
- 101100277795 Arabidopsis thaliana PFC1 gene Proteins 0.000 description 1
- 101100060007 Caenorhabditis elegans mig-22 gene Proteins 0.000 description 1
- 101100049641 Caenorhabditis elegans pfs-2 gene Proteins 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 101100269308 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) PFS1 gene Proteins 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- LOGBRYZYTBQBTB-UHFFFAOYSA-N butane-1,2,4-tricarboxylic acid Chemical compound OC(=O)CCC(C(O)=O)CC(O)=O LOGBRYZYTBQBTB-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 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
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229960004887 ferric hydroxide Drugs 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 description 1
- 229910052935 jarosite Inorganic materials 0.000 description 1
- OPCDHYPGIGFJGH-UHFFFAOYSA-M potassium;pentanoate Chemical compound [K+].CCCCC([O-])=O OPCDHYPGIGFJGH-UHFFFAOYSA-M 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a stabilizer of a polyferric coagulant and application thereof, belonging to the technical field related to industrial auxiliaries. The water-based paint comprises, by weight, 20-50% of lignosulfonate, 0-20% of acetate, 0-20% of a water reducing agent, 0-30% of citrate, 0-15% of 2-phosphonobutane-1, 2, 4-tricarboxylate, 0-15% of 1,3, 3-triphosphonyl valerate and 0-70% of deionized water. The stabilizer can be endowed with higher chelating solubilization effect through the compounding effect, and can effectively prevent the formation and precipitation of iron insoluble substances in the polyferric coagulant. Compared with common inorganic phosphate stabilizers, the inorganic phosphate stabilizer has the advantages of less dosage, better stabilizing effect, non-phosphate medicament and environment-friendly phosphorus with extremely low content. When the stabilizer is used as a stabilizer of a polyferric coagulant, the polyferric coagulant can obtain very good stability performance through chelating solubilization and dispersion effects, and the shelf life of the polyferric coagulant can be greatly prolonged.
Description
Technical Field
The invention relates to the technical field of industrial auxiliary agents, in particular to a stabilizer of a polyferric coagulant and application thereof.
Background
The water shortage problem in China is serious, and the treatment of sewage is urgent.
The coagulant is one of the most common medicaments in the field of sewage treatment, wherein the polyferric coagulant occupies an important position in the coagulant, but the coagulant has the problem of poor stability, a large amount of precipitates are generated after several months, the use effect and the service life of the coagulant are seriously influenced, and a large amount of polyferric coagulants with reduced performance or even failure influence the use effect and cause certain economic loss.
In order to increase the stability of the polyferric coagulant, a stabilizer is often required to be added in the industrial production, but the conventional phosphate stabilizer is large in dosage and easy to cause secondary pollution to water, the required dosage of the phosphate stabilizer is also large, the environment is also affected to a certain extent, and the addition of disodium hydrogen phosphate can improve the stability of the product to a certain extent, but the stability requirement of the product cannot be met. The research and development of a high-efficiency and phosphorus-free (low) polyferric coagulant stabilizer has important practical significance.
Disclosure of Invention
In order to solve the technical problem, the invention provides a stabilizer of a polyferric coagulant, which comprises, by weight, 20-50% of lignosulfonate, 0-20% of acetate, 0-20% of modified polycarboxylate, 0-30% of citrate, 0-15% of 2-phosphonobutane-1, 2, 4-tricarboxylate, 0-15% of 1,3, 3-triphosphonato valerate and 0-70% of deionized water.
Preferably or optionally, the lignosulfonate is one or more of sodium lignosulfonate, potassium lignosulfonate, ammonium lignosulfonate, calcium lignosulfonate, magnesium lignosulfonate, iron lignosulfonate, aluminum lignosulfonate and zinc lignosulfonate.
Preferably or alternatively, the acetate is a combination of one or more of sodium acetate, potassium acetate, and ammonium acetate.
Preferably or optionally, the modified polycarboxylate is one or more of sodium polyacrylate, potassium polyacrylate, ammonium polyacrylate, sodium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, potassium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, polymaleic anhydride, hydrolyzed polymaleic anhydride, potassium polymaleate and sodium polymaleate.
Preferably or optionally, the citrate is a combination of one or more of sodium citrate, potassium citrate, ammonium citrate, calcium citrate, magnesium citrate, ferric citrate.
Preferably or alternatively, the salt of 2-phosphonobutane-1, 2, 4-tricarboxylic acid is a combination of one or more of sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, potassium 2-phosphonobutane-1, 2, 4-tricarboxylate, ammonium 2-phosphonobutane-1, 2, 4-tricarboxylate, magnesium 2-phosphonobutane-1, 2, 4-tricarboxylate, calcium 2-phosphonobutane-1, 2, 4-tricarboxylate.
Preferably or optionally, the 1,3, 3-triphosphonyl valerate is one or more of sodium 1,3, 3-triphosphonyl valerate, potassium 1,3, 3-triphosphonyl valerate, ammonium 1,3, 3-triphosphonyl valerate, calcium 1,3, 3-triphosphonyl valerate, and magnesium 1,3, 3-triphosphonyl valerate.
The invention also provides application of the stabilizer based on the polyferric coagulant, which is characterized by being applied to preparation of the polyferric coagulant or used as a component of the polyferric coagulant.
Has the advantages that: according to the stabilizer of the polyferric coagulant, provided by the invention, by compounding and adding lignosulfonate, acetate, citrate, 2-phosphonic butane-1, 2, 4-tricarboxylate and 1,3, 3-triphosphonic valerate, a large number of carboxyl, hydroxyl and other groups are contained, so that the stabilizer can have a higher chelating and solubilizing effect, and can effectively prevent formation and precipitation of iron insoluble substances such as jarosite, ferric hydroxide and the like in the polyferric coagulant. The modified polycarboxylate with the molecular weight of 1000-5000 adopted by the invention can provide a large amount of carboxyl, hydroxyl and other groups, and the modified polycarboxylate with the lower molecular weight and the lignosulfonate also have a very good synergistic dispersion effect, so that the formed iron insoluble substances are not easy to aggregate or agglomerate and can be stably dispersed in a coagulant system. When the stabilizing agent is used as a stabilizing agent of the polyferric coagulant, the polyferric coagulant can obtain very good stability performance through chelating solubilization and dispersion effects, and the quality guarantee period of the polyferric coagulant can be greatly prolonged. Compared with common inorganic phosphate medicaments, the invention has the advantages of less dosage, better stabilizing effect, belonging to non-phosphate medicaments, extremely low phosphorus content and more environmental protection.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
The invention will now be further described with reference to the following examples, which are intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples, where specific techniques and reaction conditions are not indicated, can be carried out according to the techniques or conditions or product specifications described in the literature in the field. Reagents, instruments or equipment of any manufacturer not indicated are commercially available.
Wherein, because the pH value of the aqueous solution of the polyferric coagulant product is acidic, each weak acid salt added into the stabilizing agent in each embodiment can generate corresponding weak acid through hydrolysis.
Example 1
A stabilizer FPW1 suitable for producing high-stability polyferric coagulant is a black brown aqueous solution in appearance, and comprises the following components: 20 percent of sodium lignosulphonate, 8 percent of sodium acetate, 10 percent of polymaleic anhydride with the viscosity average molecular weight of about 2100, 5 percent of 2-phosphonobutane-1, 2, 4-tricarboxylic acid and 57 percent of deionized water.
Preparation of polymeric ferric sulfate PFS 1:
27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added into a 250mL four-neck flask equipped with a mechanical stirring device, after the ferrous sulfate heptahydrate, the deionized water and the concentrated sulfuric acid are fully stirred and dissolved, 5.5mL of 30% hydrogen peroxide is dropwise added under stirring, and after the reaction is carried out for 2 hours, the mixture is aged for 4 hours at normal temperature.
Preparation of polyferric sulfate PFS1 +:
27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added into a 250mL four-neck flask equipped with a mechanical stirring device, 1.5g of stabilizer FPW1 is added after full stirring and dissolution, 5.5mL of 30% hydrogen peroxide is added dropwise under the stirring condition, and after 2 hours of reaction, the mixture is aged for 4 hours at normal temperature.
Example 2
A stabilizer FPW2 suitable for producing high-stability polyferric coagulant is dark brown solid powder in appearance, and comprises the following components: 50% of calcium lignosulphonate, 5% of sodium polyacrylate with the viscosity-average molecular weight of about 5000, 30% of ammonium citrate and 15% of sodium 2-phosphonobutane-1, 2, 4-tricarboxylate.
Preparation of PFSS 1:
adding 7g of sodium silicate nonahydrate and 25mL of deionized water into a 250mL four-neck flask with a mechanical stirring device, then dropwise adding 2mL of concentrated sulfuric acid, uniformly stirring, then adjusting the pH to 3.0 with sodium hydroxide, and activating in a constant-temperature water bath kettle at 45 ℃ for 2 hours to obtain a solution A.
And adding 7g of ferrous sulfate heptahydrate and 20mL of deionized water into another 250mL four-neck flask with a mechanical stirring device, then adding 0.5mL of concentrated sulfuric acid, uniformly stirring, then adding the solution A, dropwise adding 5.5mL of 30% hydrogen peroxide under the condition of vigorous stirring, and curing in a 40 ℃ water bath kettle for 3 hours.
Preparation of PFSS1 +:
adding 7g of sodium silicate nonahydrate and 25mL of deionized water into a 250mL four-neck flask with a mechanical stirring device, then dropwise adding 2mL of concentrated sulfuric acid, uniformly stirring, then adjusting the pH to 3.0 with sodium hydroxide, and activating in a constant-temperature water bath kettle at 45 ℃ for 2 hours to obtain a solution A.
And adding 7g of ferrous sulfate heptahydrate and 20mL of deionized water into another 250mL four-neck flask equipped with a mechanical stirring device, then adding 0.5mL of concentrated sulfuric acid, uniformly stirring, then adding 0.9g of stabilizer FPW2, then adding solution A, dropwise adding 5.5mL of 30% hydrogen peroxide under the condition of vigorous stirring, and curing for 3 hours in a 40 ℃ water bath kettle.
Example 3
A stabilizer FPW3 suitable for producing high-stability polyferric coagulant is a black brown aqueous solution in appearance, and comprises the following components: 22% of calcium lignosulphonate, 5% of potassium acetate, 15% of 1,3, 3-triphosphonyl sodium valerate and 58% of deionized water.
Preparation of polyferric chloride PFC 1:
27g of ferric chloride hexahydrate and 53g of deionized water were added to a 250mL four-necked flask equipped with a mechanical stirring device, sufficiently stirred and dissolved, and then 2.65g of sodium carbonate was added thereto, sufficiently stirred and reacted for 2 hours, followed by aging at a constant temperature for 2 hours in a 50 ℃ water bath.
Preparation of polyferric chloride PFC1 +:
27g of ferric chloride hexahydrate and 53g of deionized water were charged into a 250mL four-necked flask equipped with a mechanical stirring device, sufficiently stirred and dissolved, and then 2.65g of sodium carbonate and 1.2g of stabilizer FPW3 were added, and after sufficiently stirred and reacted for 2 hours, they were matured for 2 hours at a constant temperature in a 50 ℃ water bath.
Example 4
A stabilizer FPW4 suitable for producing high-stability polyferric coagulant is dark brown solid powder in appearance, and comprises the following components: 50% of ammonium lignosulphonate, 20% of ammonium acetate, 15% of ammonium citrate and 15% of 1,3, 3-triphosphonyl potassium valerate.
Preparation of polyaluminum ferric chloride PCFC 1:
32g of ferric chloride hexahydrate, 10g of aluminum chloride nonahydrate and 46g of deionized water were added to a 250mL four-necked flask equipped with a mechanical stirring device, and the mixture was sufficiently stirred and dissolved, and then 4g of sodium carbonate was added thereto, and after the mixture was sufficiently stirred and reacted for 2 hours, the mixture was aged in a 40 ℃ water bath for 3 hours at a constant temperature.
Preparation of polyaluminum ferric chloride PCFC1 +:
32g of ferric chloride hexahydrate, 10g of aluminum chloride nonahydrate and 46g of deionized water were added to a 250mL four-necked flask equipped with a mechanical stirring device, and after fully stirring and dissolving, 4g of sodium carbonate and 0.4g of stabilizer FPW4 were added and fully stirring and reacting for 2 hours, the mixture was aged in a 40 ℃ water bath for 3 hours at a constant temperature.
Example 5
A stabilizer FPW5 suitable for producing high-stability polyferric coagulant has a dark brown aqueous solution appearance, and comprises the following components: 30% of sodium lignosulfonate, 8% of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer (AA/AMPS) with viscosity average molecular weight of about 3500, 12% of 2-phosphonobutane-1, 2, 4-tricarboxylic acid and 50% of deionized water.
Preparation of polyaluminum ferric sulfate PCFS 1:
adding 23g of ferrous sulfate heptahydrate, 32g of deionized water and 0.8mL of concentrated sulfuric acid into a 250mL four-neck flask equipped with a mechanical stirring device, stirring fully to dissolve, dropwise adding 5.2mL of 30% hydrogen peroxide, reacting for 2 hours, adding 8g of aluminum sulfate octadecahydrate, stirring for 1 hour, and curing for 8 hours at 30 ℃.
Preparation of polyaluminum ferric sulfate PCFS1 +:
adding 23g of ferrous sulfate heptahydrate, 32g of deionized water and 0.8mL of concentrated sulfuric acid into a 250mL four-neck flask equipped with a mechanical stirring device, stirring fully to dissolve, dropwise adding 5.2mL of 30% hydrogen peroxide, reacting for 2 hours, adding 8g of aluminum sulfate octadecahydrate and 2g of stabilizer FPW5, stirring for 1 hour, and curing for 8 hours at 30 ℃.
Example 6
A stabilizer FPW6 suitable for producing high-stability polyferric coagulant has a dark brown aqueous solution appearance, and comprises the following components: 25% of calcium lignosulphonate, 2% of ammonium acetate, 10% of hydrolyzed polymaleic anhydride with viscosity average molecular weight of about 4000, 5% of citric acid, 5% of 2-phosphonobutane-1, 2, 4-tricarboxylic acid, 3% of 1,3, 3-triphosphonyl sodium valerate and 50% of deionized water.
Preparation of polyferric sulfate PFS 2:
27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added into a 250mL four-neck flask equipped with a mechanical stirring device, after the ferrous sulfate heptahydrate, the deionized water and the concentrated sulfuric acid are fully stirred and dissolved, 5.5mL of 30% hydrogen peroxide is dropwise added under stirring, and after the reaction is carried out for 2 hours, the mixture is aged for 4 hours at normal temperature.
Preparation of polyferric sulfate PFS2 +:
27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added into a 250mL four-neck flask equipped with a mechanical stirring device, 1.3g of stabilizer FPW6 is added after the ferrous sulfate heptahydrate, the deionized water and the concentrated sulfuric acid are fully stirred and dissolved, 5.5mL of 30% hydrogen peroxide is added dropwise under the condition of stirring, and after the mixture reacts for 2 hours, the mixture is aged for 4 hours at normal temperature.
Preparation of polyferric sulfate PFS2+ P:
27g of ferrous sulfate heptahydrate, 40g of deionized water and 0.9mL of concentrated sulfuric acid are added into a 250mL four-neck flask equipped with a mechanical stirring device, 1.3g of stabilizer sodium dihydrogen phosphate is added after fully stirring and dissolving, 5.5mL of 30% hydrogen peroxide is added dropwise under the stirring condition, and after 2 hours of reaction, the mixture is aged for 4 hours at normal temperature.
Example 7
A stabilizer FPW7 suitable for producing high-stability polyferric coagulant is a black brown aqueous solution in appearance, and comprises the following components: 50% of calcium lignosulfonate and 50% of deionized water.
Preparation of polyferric chloride PFC 2:
27g of ferric chloride hexahydrate and 53g of deionized water were added to a 250mL four-necked flask equipped with a mechanical stirring device, sufficiently stirred and dissolved, and then 2.65g of sodium carbonate was added thereto, sufficiently stirred and reacted for 2 hours, followed by aging at a constant temperature for 2 hours in a 50 ℃ water bath.
Preparation of polyferric chloride PFC2 +:
27g of ferric chloride hexahydrate and 53g of deionized water were added to a 250mL four-necked flask equipped with a mechanical stirring device, sufficiently stirred and dissolved, then 2.65g of sodium carbonate and 1.4g of stabilizer FPW7 were added, and after sufficiently stirred and reacted for 2 hours, the mixture was incubated in a water bath at 50 ℃ for 2 hours.
Preparation of poly-ferric chloride PFC2+ P:
27g of ferric chloride hexahydrate and 53g of deionized water were added to a 250mL four-necked flask equipped with a mechanical stirring device, and the mixture was sufficiently stirred and dissolved, then 2.65g of sodium carbonate and 1.4g of sodium dihydrogen phosphate as a stabilizer were added, and after a reaction was sufficiently stirred for 2 hours, the mixture was aged in a 50 ℃ water bath for 2 hours at a constant temperature.
The stability of the polyferric coagulant products obtained in examples 1-7 is tested, and the stability is determined by measuring the content of water-insoluble substances in the polyferric coagulant, wherein the more the content of the water-insoluble substances is, the worse the stability is, and the specific test method is as follows (refer to the determination of the water-insoluble substances in GB/T14591-2016):
weighing about 20g of sample to be accurate to 0.0002g, wherein the specific mass is m, placing the sample in a 250mL beaker, adding 80mL of 1+49 diluted hydrochloric acid, uniformly stirring, keeping the temperature in a water bath kettle at 50-55 ℃ for 15 minutes, drying the sample in an oven at 105-110 ℃ to constant weight, and weighing (the mass is m) 1 To the nearest 0.0002g) was filtered off with suction through a crucible filter and the residue was washed with water until the filtrate was free of chloride ions (checked with silver nitrate solution). Putting the crucible type filter into a drying oven, drying at 105-110 ℃ to constant weight, and weighing (the mass is m) 2 ) To the nearest 0.0002 g.
Water insoluble content w ═ m ═ 2 -m 1 )/m]X 100 (in% by mass)
The stability of the polyferric coagulant obtained in different embodiments of the invention is shown in the following table:
TABLE 1 Water-insoluble matter of the polyferric coagulants prepared in the examples
As can be seen from the results in Table 1, the water-insoluble substances of the polyferric coagulant added with the stabilizers FPW 1-7 are all obviously lower than those of the polyferric coagulant without the stabilizers; in comparison of PFS2+ and PFS2+ P in example 6 and PFC2+ and PFC2+ P in example 7, it is evident that the iron-containing insoluble matter content of the stabilizer prepared in this example is significantly lower than that of the conventional phosphate-based stabilizer. Therefore, the invention is suitable for producing the polyferric coagulant with high stability, and the prepared stabilizer has good stabilizing effect on the polyferric coagulant.
It should be noted that the various features described in the foregoing embodiments may be combined in any suitable manner without contradiction. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (8)
1. A stabilizer of a polyferric coagulant comprises, by weight, 20-50% of lignosulfonate, 0-20% of acetate, 0-20% of modified polycarboxylate, 0-30% of citrate, 0-15% of 2-phosphonobutane-1, 2, 4-tricarboxylate, 0-15% of 1,3, 3-triphosphonato valerate and 0-70% of deionized water.
2. The stabilizer for polyferric coagulants according to claim 1, wherein the lignosulfonate is one or more of sodium lignosulfonate, potassium lignosulfonate, ammonium lignosulfonate, calcium lignosulfonate, magnesium lignosulfonate, iron lignosulfonate, aluminum lignosulfonate and zinc lignosulfonate.
3. A stabilizer for polyferric coagulants according to claim 1, characterized in that the acetate is one or more of sodium acetate, potassium acetate and ammonium acetate in combination.
4. The stabilizer of a polyferric coagulant according to claim 1, wherein the modified polycarboxylate is one or more selected from the group consisting of sodium polyacrylate, potassium polyacrylate, ammonium polyacrylate, sodium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, potassium salt of acrylic acid-2-acrylamide-2-methylpropanesulfonic acid copolymer, polymaleic anhydride, hydrolyzed polymaleic anhydride, potassium polymaleate and sodium polymaleate.
5. A stabilizer for polyferric coagulants according to claim 1, wherein the citrate is one or more of sodium citrate, potassium citrate, ammonium citrate, calcium citrate, magnesium citrate and ferric citrate.
6. A stabilizer for polyferric coagulants according to claim 1, characterized in that the salt of 2-phosphonobutane-1, 2, 4-tricarboxylic acid is one or more combinations of sodium 2-phosphonobutane-1, 2, 4-tricarboxylate, potassium 2-phosphonobutane-1, 2, 4-tricarboxylate, ammonium 2-phosphonobutane-1, 2, 4-tricarboxylate, magnesium 2-phosphonobutane-1, 2, 4-tricarboxylate, calcium 2-phosphonobutane-1, 2, 4-tricarboxylate.
7. A stabilizer for polyferric coagulants according to claim 1, wherein the 1,3, 3-triphosphonyl valerate is one or more of sodium 1,3, 3-triphosphonyl valerate, potassium 1,3, 3-triphosphonyl valerate, ammonium 1,3, 3-triphosphonyl valerate, calcium 1,3, 3-triphosphonyl valerate, and magnesium 1,3, 3-triphosphonyl valerate.
8. Use of a stabilizer based on a polyiron coagulant according to any one of claims 1 to 7 in the preparation of or as a component of a polyiron coagulant.
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