CN101028928B - 在硅酸盐生产中从硅酸盐源中去除重金属的方法 - Google Patents
在硅酸盐生产中从硅酸盐源中去除重金属的方法 Download PDFInfo
- Publication number
- CN101028928B CN101028928B CN2006101624722A CN200610162472A CN101028928B CN 101028928 B CN101028928 B CN 101028928B CN 2006101624722 A CN2006101624722 A CN 2006101624722A CN 200610162472 A CN200610162472 A CN 200610162472A CN 101028928 B CN101028928 B CN 101028928B
- Authority
- CN
- China
- Prior art keywords
- silicate
- metal
- water glass
- sodium
- heavy metal
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 65
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 49
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 title claims description 32
- 238000004519 manufacturing process Methods 0.000 title abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 94
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 61
- 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 claims abstract description 44
- 229910052914 metal silicate Inorganic materials 0.000 claims abstract description 43
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 35
- 239000001506 calcium phosphate Substances 0.000 claims abstract description 22
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 19
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 claims abstract description 18
- 235000019731 tricalcium phosphate Nutrition 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910000391 tricalcium phosphate Inorganic materials 0.000 claims abstract description 16
- 229940078499 tricalcium phosphate Drugs 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 11
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 239000003518 caustics Substances 0.000 claims abstract description 7
- 235000019353 potassium silicate Nutrition 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 38
- 239000011575 calcium Substances 0.000 claims description 25
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 22
- 229910052791 calcium Inorganic materials 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 16
- 229960001866 silicon dioxide Drugs 0.000 claims description 15
- 150000003839 salts Chemical class 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 9
- 239000010452 phosphate Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- JYIMWRSJCRRYNK-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4] JYIMWRSJCRRYNK-UHFFFAOYSA-N 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- 150000004696 coordination complex Chemical class 0.000 claims description 6
- 239000000391 magnesium silicate Substances 0.000 claims description 6
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 6
- 235000019792 magnesium silicate Nutrition 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 5
- 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 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- ZADYMNAVLSWLEQ-UHFFFAOYSA-N magnesium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[Mg+2].[Si+4] ZADYMNAVLSWLEQ-UHFFFAOYSA-N 0.000 claims 5
- NEMFQSKAPLGFIP-UHFFFAOYSA-N magnesiosodium Chemical compound [Na].[Mg] NEMFQSKAPLGFIP-UHFFFAOYSA-N 0.000 claims 4
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims 1
- 239000004115 Sodium Silicate Substances 0.000 abstract description 17
- 229910052911 sodium silicate Inorganic materials 0.000 abstract description 17
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 229910052793 cadmium Inorganic materials 0.000 abstract description 11
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract description 9
- 238000001914 filtration Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 239000000376 reactant Substances 0.000 abstract description 4
- 238000011109 contamination Methods 0.000 abstract description 2
- 235000019739 Dicalciumphosphate Nutrition 0.000 abstract 4
- NEFBYIFKOOEVPA-UHFFFAOYSA-K dicalcium phosphate Chemical compound [Ca+2].[Ca+2].[O-]P([O-])([O-])=O NEFBYIFKOOEVPA-UHFFFAOYSA-K 0.000 abstract 4
- 229910000390 dicalcium phosphate Inorganic materials 0.000 abstract 4
- 229940038472 dicalcium phosphate Drugs 0.000 abstract 4
- 229910052588 hydroxylapatite Inorganic materials 0.000 abstract 3
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 2
- 235000011010 calcium phosphates Nutrition 0.000 abstract 2
- 238000005202 decontamination Methods 0.000 abstract 1
- 230000003588 decontaminative effect Effects 0.000 abstract 1
- 238000007429 general method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000009877 rendering Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 40
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 21
- 239000000523 sample Substances 0.000 description 19
- 239000010949 copper Substances 0.000 description 15
- 239000004576 sand Substances 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 10
- 230000007423 decrease Effects 0.000 description 10
- 150000003016 phosphoric acids Chemical class 0.000 description 10
- 239000000047 product Substances 0.000 description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 239000002689 soil Substances 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 7
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 239000011701 zinc Substances 0.000 description 6
- 239000000356 contaminant Substances 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052785 arsenic Inorganic materials 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 150000004760 silicates Chemical class 0.000 description 4
- 239000011343 solid material Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000013019 agitation Methods 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000003556 assay Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052745 lead Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-D Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- MPNNOLHYOHFJKL-UHFFFAOYSA-N peroxyphosphoric acid Chemical compound OOP(O)(O)=O MPNNOLHYOHFJKL-UHFFFAOYSA-N 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000012488 sample solution Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NHORPIRSHBGRQJ-UHFFFAOYSA-N [Ca].[Ca].OP(O)(O)=O Chemical compound [Ca].[Ca].OP(O)(O)=O NHORPIRSHBGRQJ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 231100000734 genotoxic potential Toxicity 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000546 pharmaceutical excipient Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- XJKVPKYVPCWHFO-UHFFFAOYSA-N silicon;hydrate Chemical compound O.[Si] XJKVPKYVPCWHFO-UHFFFAOYSA-N 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 229910021654 trace metal Inorganic materials 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/32—Alkali metal silicates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/282,073 | 2005-11-17 | ||
| US11/282,073 US7201885B1 (en) | 2005-11-17 | 2005-11-17 | Method of removing heavy metals from silicate sources during silicate manufacturing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028928A CN101028928A (zh) | 2007-09-05 |
| CN101028928B true CN101028928B (zh) | 2012-03-28 |
Family
ID=37853045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101624722A Active CN101028928B (zh) | 2005-11-17 | 2006-11-15 | 在硅酸盐生产中从硅酸盐源中去除重金属的方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7201885B1 (enExample) |
| EP (1) | EP1787961B1 (enExample) |
| JP (1) | JP5257864B2 (enExample) |
| CN (1) | CN101028928B (enExample) |
| ES (1) | ES2706582T3 (enExample) |
| PL (1) | PL1787961T3 (enExample) |
| TR (1) | TR201900516T4 (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7297318B2 (en) * | 2005-11-17 | 2007-11-20 | J.M. Huber Corporation | Method of removing heavy metals from silicate sources during silicate manufacturing |
| US20080175801A1 (en) * | 2007-01-18 | 2008-07-24 | The Procter & Gamble Company | Stable peroxide containing personal care compositions |
| US20110083684A1 (en) * | 2009-10-09 | 2011-04-14 | Philip Morris Usa Inc. | Methods for removing heavy metals from aqueous extracts of tobacco |
| US9592253B1 (en) * | 2015-10-14 | 2017-03-14 | ZS Pharma, Inc. | Extended use zirconium silicate compositions and methods of use thereof |
| CN110420985B (zh) * | 2019-06-21 | 2022-02-08 | 湖南大学 | 一种采用复合土壤修复剂修复镉污染土壤的方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032429A (zh) * | 1987-07-28 | 1989-04-19 | 埃维罗加德股份有限公司 | 由生物二氧化硅生产可溶性硅酸盐 |
| US5106510A (en) * | 1991-03-08 | 1992-04-21 | Enviroguard, Inc. | Combined filtration and fixation of heavy metals |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE26585E (en) * | 1959-10-28 | 1969-05-27 | Concentration of phosphoric acid | |
| JPS5452862A (en) * | 1977-08-25 | 1979-04-25 | Blue Circle Ind Ltd | Method of removing heavy metal by silicate |
| FR2499540A2 (fr) * | 1980-07-11 | 1982-08-13 | Rhone Poulenc Ind | Procede d'obtention de silice et silicates metalliques a partir de solutions de silicates alcalins, produits obtenus et applications, notamment en verrerie |
| US6214233B1 (en) | 1989-07-28 | 2001-04-10 | Lewis, Iii Tom | Process for simultaneous oxidation of cyanide and recovery of heavy metals from waste water |
| US6635796B2 (en) * | 1990-03-16 | 2003-10-21 | Sevenson Environmental Services, Inc. | Reduction of leachability and solubility of radionuclides and radioactive substances in contaminated soils and materials |
| US5074916A (en) * | 1990-05-18 | 1991-12-24 | Geltech, Inc. | Alkali-free bioactive sol-gel compositions |
| DE9217040U1 (de) | 1992-12-15 | 1994-04-14 | Robert Bosch Gmbh, 70469 Stuttgart | Verpackungsschachtel für längliche Gegenstände |
| CA2111287C (en) | 1993-12-13 | 2007-07-03 | Graham Darling | Chelating resins and use thereof in selectively recovering valuable metals from acid mine drainage |
| US5849567A (en) | 1995-03-31 | 1998-12-15 | Gsf-Forschungszentrum Fur Umwelt Und Gesundheit Gmbh | Method of decontaminating solid materials contaminated with heavy metals |
| US6274045B1 (en) | 1995-05-19 | 2001-08-14 | Lawrence Kreisler | Method for recovering and separating metals from waste streams |
| CA2211481A1 (en) | 1996-07-26 | 1998-01-26 | Abdul Majid | An improved method of soil remediation, by concurrent removal of hydrocarbons and fixation of heavy metals |
| US6264720B1 (en) | 1997-01-21 | 2001-07-24 | The Procter & Gamble Co. | Separation of heavy metals and materials for use in this |
| US6610266B2 (en) * | 2001-11-28 | 2003-08-26 | Michael C. Withiam | Calcium metasilicates and methods for making |
| US7297318B2 (en) * | 2005-11-17 | 2007-11-20 | J.M. Huber Corporation | Method of removing heavy metals from silicate sources during silicate manufacturing |
-
2005
- 2005-11-17 US US11/282,073 patent/US7201885B1/en not_active Expired - Lifetime
-
2006
- 2006-11-15 EP EP06023760.9A patent/EP1787961B1/en active Active
- 2006-11-15 CN CN2006101624722A patent/CN101028928B/zh active Active
- 2006-11-15 ES ES06023760T patent/ES2706582T3/es active Active
- 2006-11-15 PL PL06023760T patent/PL1787961T3/pl unknown
- 2006-11-15 TR TR2019/00516T patent/TR201900516T4/tr unknown
- 2006-11-16 JP JP2006310289A patent/JP5257864B2/ja active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1032429A (zh) * | 1987-07-28 | 1989-04-19 | 埃维罗加德股份有限公司 | 由生物二氧化硅生产可溶性硅酸盐 |
| US5106510A (en) * | 1991-03-08 | 1992-04-21 | Enviroguard, Inc. | Combined filtration and fixation of heavy metals |
Also Published As
| Publication number | Publication date |
|---|---|
| PL1787961T3 (pl) | 2019-05-31 |
| EP1787961B1 (en) | 2018-10-24 |
| US7201885B1 (en) | 2007-04-10 |
| EP1787961A1 (en) | 2007-05-23 |
| CN101028928A (zh) | 2007-09-05 |
| JP5257864B2 (ja) | 2013-08-07 |
| TR201900516T4 (tr) | 2019-02-21 |
| ES2706582T3 (es) | 2019-03-29 |
| JP2007145708A (ja) | 2007-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101028929B (zh) | 在硅酸盐生产中从硅酸盐源中去除重金属的方法 | |
| EP2990379B1 (en) | Process and reagents for the inhibition or reduction of scale formation during phosphoric acid production | |
| CN101028928B (zh) | 在硅酸盐生产中从硅酸盐源中去除重金属的方法 | |
| WO2025045127A1 (zh) | 一种铍（ii）矿化试剂及含铍废水深度净化方法 | |
| JPH0481526B2 (enExample) | ||
| AU2002300655B2 (en) | Process for purifying sand | |
| JP2005296885A (ja) | 重金属汚染土壌の浄化剤及びそれを用いた浄化方法 | |
| WO2022056230A1 (en) | Weak acid lixiviants for selective recovery of alkaline earth metals | |
| KR101281145B1 (ko) | 정수장 슬러지로부터 염화알루미늄을 제조하는 방법 | |
| JPS6225435B2 (enExample) | ||
| US4361542A (en) | Zircon retrieval | |
| JPS6321212A (ja) | 高純度シリカの製造方法 | |
| KR101239605B1 (ko) | 수산화 알루미늄겔 입자 및 그 제조 방법 | |
| CN115155516A (zh) | 重金属废水吸附剂及其制备方法 | |
| CN109179617B (zh) | 一种除磷剂及其制备方法和使用方法 | |
| US20250340998A1 (en) | Process for regenerating chemical milling solutions | |
| CN107601509A (zh) | 碳化硅微粉中铁离子的去除方法 | |
| CN113087106B (zh) | 一种从酸液中除硅的方法 | |
| RU2351538C1 (ru) | Способ переработки металлических отходов бериллия | |
| WO2025073021A1 (pt) | Método para a remoção de impurezas de concentrado fosfático, concentrado fosfático com alto grau de pureza, e, uso de um concentrado fosfático com alto grau de pureza | |
| JP2025017708A (ja) | 鉛を含有する汚染土壌の浄化方法 | |
| KR20250001535A (ko) | 레드머드로부터 유가금속을 회수하는 공정 | |
| CS218927B1 (en) | Method of making the aluminium-silicon coagulation means |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181123 Address after: essen Patentee after: Evonik Degussa GmbH Address before: new jersey Patentee before: J.M. Huber Corporation |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Essen, Germany Patentee after: Evonik Operations Limited Address before: Essen, Germany Patentee before: EVONIK DEGUSSA GmbH |