CA2330409A1 - Metal extraction prior to chelation in chemical pulp production - Google Patents
Metal extraction prior to chelation in chemical pulp production Download PDFInfo
- Publication number
- CA2330409A1 CA2330409A1 CA002330409A CA2330409A CA2330409A1 CA 2330409 A1 CA2330409 A1 CA 2330409A1 CA 002330409 A CA002330409 A CA 002330409A CA 2330409 A CA2330409 A CA 2330409A CA 2330409 A1 CA2330409 A1 CA 2330409A1
- Authority
- CA
- Canada
- Prior art keywords
- practiced
- recited
- slurry
- metal
- cooking
- 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.)
- Abandoned
Links
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 80
- 239000002184 metal Substances 0.000 title claims abstract description 80
- 238000000605 extraction Methods 0.000 title claims abstract description 24
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 230000009920 chelation Effects 0.000 title description 2
- 239000013522 chelant Substances 0.000 claims abstract description 60
- 238000010411 cooking Methods 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 49
- 238000005470 impregnation Methods 0.000 claims abstract description 48
- 239000002002 slurry Substances 0.000 claims abstract description 47
- 239000002738 chelating agent Substances 0.000 claims abstract description 41
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 22
- 238000004061 bleaching Methods 0.000 claims abstract description 16
- 230000029087 digestion Effects 0.000 claims abstract description 12
- 239000002657 fibrous material Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 76
- 150000001875 compounds Chemical class 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 7
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 claims description 6
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- 230000002411 adverse Effects 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 3
- 235000002906 tartaric acid Nutrition 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 239000002023 wood Substances 0.000 abstract description 34
- 150000002739 metals Chemical class 0.000 abstract description 24
- 238000011282 treatment Methods 0.000 description 61
- 230000008569 process Effects 0.000 description 34
- 239000011572 manganese Substances 0.000 description 27
- 239000003513 alkali Substances 0.000 description 17
- 238000012360 testing method Methods 0.000 description 14
- 239000011575 calcium Substances 0.000 description 11
- 238000004537 pulping Methods 0.000 description 11
- 239000011122 softwood Substances 0.000 description 11
- 239000011777 magnesium Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 229910052791 calcium Inorganic materials 0.000 description 8
- 239000011121 hardwood Substances 0.000 description 8
- 239000002655 kraft paper Substances 0.000 description 8
- 229910052749 magnesium Inorganic materials 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- 238000010025 steaming Methods 0.000 description 8
- 229910001428 transition metal ion Inorganic materials 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 101150016456 Hexa gene Proteins 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229960003330 pentetic acid Drugs 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- -1 hydroxycarboxyl compounds Chemical class 0.000 description 3
- 150000002736 metal compounds Chemical class 0.000 description 3
- 239000011368 organic material Substances 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 150000004696 coordination complex Chemical class 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000272517 Anseriformes Species 0.000 description 1
- 101100521055 Mus musculus Prl7d1 gene Proteins 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000003352 sequestering agent Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/479,051 | 2000-01-07 | ||
| US09/479,051 US20020139497A1 (en) | 1996-06-05 | 2000-01-07 | Metal extraction prior to chelation in chemical pulp production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2330409A1 true CA2330409A1 (en) | 2001-07-07 |
Family
ID=23902464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002330409A Abandoned CA2330409A1 (en) | 2000-01-07 | 2001-01-05 | Metal extraction prior to chelation in chemical pulp production |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2001295189A (fi) |
| CA (1) | CA2330409A1 (fi) |
| FI (1) | FI20010008A (fi) |
| SE (1) | SE0100039L (fi) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5114629B2 (ja) * | 2008-02-06 | 2013-01-09 | サンノプコ株式会社 | リグノセルロース物質蒸解用蒸解助剤及びパルプの製造方法 |
-
2001
- 2001-01-03 FI FI20010008A patent/FI20010008A/fi unknown
- 2001-01-04 SE SE0100039A patent/SE0100039L/xx not_active Application Discontinuation
- 2001-01-05 JP JP2001000631A patent/JP2001295189A/ja not_active Withdrawn
- 2001-01-05 CA CA002330409A patent/CA2330409A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| SE0100039D0 (sv) | 2001-01-04 |
| FI20010008A0 (fi) | 2001-01-03 |
| FI20010008A (fi) | 2001-07-08 |
| JP2001295189A (ja) | 2001-10-26 |
| SE0100039L (sv) | 2001-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |