JP6014256B2 - パルプ化薬品の回収、及びパルプ化薬品中のカリウムと塩化物の濃度を低下する方法 - Google Patents
パルプ化薬品の回収、及びパルプ化薬品中のカリウムと塩化物の濃度を低下する方法 Download PDFInfo
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- JP6014256B2 JP6014256B2 JP2015524298A JP2015524298A JP6014256B2 JP 6014256 B2 JP6014256 B2 JP 6014256B2 JP 2015524298 A JP2015524298 A JP 2015524298A JP 2015524298 A JP2015524298 A JP 2015524298A JP 6014256 B2 JP6014256 B2 JP 6014256B2
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims description 51
- 238000000034 method Methods 0.000 title claims description 50
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 title claims description 34
- 239000011591 potassium Substances 0.000 title claims description 34
- 229910052700 potassium Inorganic materials 0.000 title claims description 34
- 239000000126 substance Substances 0.000 title claims description 30
- 238000004537 pulping Methods 0.000 title claims description 22
- 238000011084 recovery Methods 0.000 claims description 36
- 239000000243 solution Substances 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 23
- 239000011734 sodium Substances 0.000 claims description 23
- 239000002023 wood Substances 0.000 claims description 21
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 19
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 19
- 235000011152 sodium sulphate Nutrition 0.000 claims description 19
- 239000013078 crystal Substances 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 17
- 238000010926 purge Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 229910052708 sodium Inorganic materials 0.000 claims description 9
- 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 8
- 239000007864 aqueous solution Substances 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- OTYBMLCTZGSZBG-UHFFFAOYSA-L potassium sulfate Chemical compound [K+].[K+].[O-]S([O-])(=O)=O OTYBMLCTZGSZBG-UHFFFAOYSA-L 0.000 claims description 7
- 229910052939 potassium sulfate Inorganic materials 0.000 claims description 7
- 235000011151 potassium sulphates Nutrition 0.000 claims description 7
- 239000012452 mother liquor Substances 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims 4
- 230000001376 precipitating effect Effects 0.000 claims 2
- 230000008020 evaporation Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000002956 ash Substances 0.000 description 32
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 241001062472 Stokellia anisodon Species 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 235000011941 Tilia x europaea Nutrition 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 239000004571 lime Substances 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 239000003518 caustics Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 150000001805 chlorine compounds Chemical class 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000010828 elution Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 238000009993 causticizing Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- 101100493706 Caenorhabditis elegans bath-38 gene Proteins 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000003112 potassium compounds Chemical class 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
- D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
- D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0042—Fractionating or concentration of spent liquors by special methods
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
- D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/10—Concentrating spent liquor by evaporation
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/10—Concentrating spent liquor by evaporation
- D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/12—Combustion of pulp liquors
- D21C11/122—Treatment, e.g. dissolution, of the smelt
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/12—Combustion of pulp liquors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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- Paper (AREA)
Description
Claims (10)
- 黒液中のカリウム及び塩化物の濃度を低下させながら、木材からパルプを除去し且つ黒液からパルプ化薬品を回収する方法であって、
蒸解釜において前記木材を分解し、前記木材からパルプを分離し且つ前記黒液を生成する工程と、
前記黒液を濃縮する工程と、
回収ボイラーに前記黒液を導き、及び前記黒液を燃焼させる工程であって、前記工程においてカリウム、塩化物及びナトリウムを含む灰を生成する工程と、
i.水性溶液と前記灰を混合し、且つ溶解灰溶液を形成するために前記水性溶液に前記灰を溶解する工程、
ii.前記溶解水性溶液から硫酸ナトリウム及び炭酸ナトリウムを分離する工程、
iii.晶析装置に前記溶解灰溶液を導き、且つグラセライトスラリー及び塩化物を含むパージストリームを生成するために少なくとも35℃の温度まで前記溶解灰溶液を断熱的に冷却する工程、
iv.前記グラセライトスラリーを固体―液体分離器に導き、且つ前記グラセライトスラリーからグラセライト結晶を分離する工程、及び
v.前記グラセライト結晶から硫酸ナトリウムを分離し、且つ硫酸カリウムを形成する工程、により
前記灰からナトリウムを回収しながら、前記灰の少なくとも一部においてカリウム及び塩化物の前記濃度を低下させる工程と、
を有する方法。 - 前記溶解水性溶液から硫酸ナトリウム及び炭酸ナトリウムを分離する工程は、硫酸ナトリウムを生成する蒸発器内において溶解灰溶液を蒸発させる工程を含む、ことを特徴とする請求項1に記載の方法。
- 前記溶解灰溶液を前記晶析装置に導き前記溶解灰溶液を断熱的に冷却する工程の前に、前記溶解灰溶液を1つ以上の蒸発器に導き、且つ前記溶解灰溶液を硫酸ナトリウムを生成する蒸発プロセスに供する工程を含む、ことを特徴とする請求項1に記載の方法。
- 前記グラセライトスラリーからグラセライト結晶を分離する前記固体―液体分離器は、前記晶析装置に再循環される塩化物を含む液体再循環ストリームを生成することを特徴とする、請求項1に記載の方法。
- (1)塩化物を含む前記パージストリームの少なくとも一部を、前記晶析装置の上流に配置される1つ以上の蒸発器に再循環する工程、及び(2)前記グラセライトから溶出した硫酸ナトリウムを前記晶析装置に再循環する工程を含み、前記蒸発器は前記溶解灰溶液から硫酸ナトリウム及び炭酸ナトリウムを分離することを特徴とする、請求項1に記載の方法。
- パルプ工場の木材パルプ化プロセスにおいて生成される黒液から木材パルプ化薬品を回収する方法であって、
回収ボイラーにおいて前記黒液を燃焼し、及びナトリウム、カリウム及び塩化物を含む灰を形成する工程と、
溶解灰溶液を形成するために前記灰の少なくとも一部を溶解する工程と、
前記溶解灰溶液を1つ以上の蒸発器に導き、そして前記溶解灰溶液を濃縮し且つ硫酸ナトリウムを沈殿する工程と、
前記沈殿した硫酸ナトリウムを回収する工程と、
前記濃縮溶解灰溶液を晶析装置に導き、グラセライトスラリーと、塩化物を含むパージストリームとを形成するために、前記濃縮溶解灰溶液を少なくとも35℃の温度まで冷却することを特徴とする工程と、
前記晶析装置から前記グラセライトスラリーを導く工程とを有し、
前記晶析装置において前記濃縮溶解灰溶液を冷却することは、前記濃縮溶解灰溶液からグラセライトを沈殿させ、且つグラセライトと母液を形成する
ことを特徴とする、方法。 - 前記グラセライトスラリーは少なくともいくらかの塩化物を含み、且つ前記方法は前記晶析装置から前記グラセライトスラリーを導くことにより前記濃縮溶解灰溶液から塩化物を除去する工程を含むことを特徴とする、請求項6に記載の方法。
- 前記母液は、少なくともいくらかの塩化物を含み、且つ前記方法は前記母液を前記1つ以上の蒸発器に再循環する工程を含む、請求項6に記載の方法。
- 前記グラセライトスラリーを固体―液体分離器に導き、且つ前記グラセライトスラリーをグラセライト結晶と液体ストリームとに分離する工程、及び前記液体ストリームを前記晶析装置に再循環する工程を含むことを特徴とする、請求項6に記載の方法。
- 水性溶液を前記グラセライト結晶と混合する工程、及び硫酸カリウムを形成するために前記グラセライト結晶から硫酸ナトリウムを溶出する工程を含むことを特徴とする、請求項9に記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US201261676102P | 2012-07-26 | 2012-07-26 | |
US61/676,102 | 2012-07-26 | ||
US13/709,140 | 2012-12-10 | ||
US13/709,140 US8721837B2 (en) | 2012-07-26 | 2012-12-10 | Method for recovering pulping chemicals and reducing the concentration of potassium and chloride therein |
PCT/US2013/049293 WO2014018239A1 (en) | 2012-07-26 | 2013-07-03 | Method for recovering pulping chemicals and reducing the concentration of potassium and chloride therein |
Publications (2)
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JP2015522726A JP2015522726A (ja) | 2015-08-06 |
JP6014256B2 true JP6014256B2 (ja) | 2016-10-25 |
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JP2015524298A Active JP6014256B2 (ja) | 2012-07-26 | 2013-07-03 | パルプ化薬品の回収、及びパルプ化薬品中のカリウムと塩化物の濃度を低下する方法 |
Country Status (9)
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US (1) | US8721837B2 (ja) |
JP (1) | JP6014256B2 (ja) |
CN (1) | CN104603357B (ja) |
AU (1) | AU2013203860B2 (ja) |
BR (1) | BR112015001412B1 (ja) |
CA (1) | CA2880041C (ja) |
CL (1) | CL2015000196A1 (ja) |
WO (1) | WO2014018239A1 (ja) |
ZA (1) | ZA201500458B (ja) |
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SE1451569A1 (sv) * | 2014-12-17 | 2015-12-01 | Aprotech Engineering Ab | Process for production of a fertilizer comprising potassium sulfate |
US9574303B2 (en) * | 2015-06-01 | 2017-02-21 | Veolia Water Technologies, Inc. | Method of recovering pulping chemicals from dissolved ash having a high carbonate content |
EP3228743A1 (en) * | 2016-04-05 | 2017-10-11 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Selective removal of k+ and cl- from recovery boiler electrostatic precipitator ashes in a kraft process |
WO2024123962A1 (en) * | 2022-12-08 | 2024-06-13 | Veolia Water Technologies, Inc. | Process for producing sulfate of potash from a wood pulping operation |
WO2024151589A1 (en) | 2023-01-10 | 2024-07-18 | Veolia Water Technologies, Inc. | System and process for reducing chemical losses in treating ash produced in a recovery boiler of a wood pulping process |
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---|---|---|---|---|
JPS4943482B2 (ja) * | 1971-11-02 | 1974-11-21 | ||
US3954552A (en) | 1974-08-05 | 1976-05-04 | Erco Envirotech Ltd. | Removal of sodium chloride from pulp mill systems |
US3966541A (en) * | 1975-02-20 | 1976-06-29 | Abraham Sadan | Concentration of underground brines in situ by solar evaporation |
JP2637573B2 (ja) * | 1989-10-12 | 1997-08-06 | 三菱重工業株式会社 | パルプ蒸解薬品中の食塩及びカリウム塩の除去方法 |
US5549788A (en) * | 1992-07-30 | 1996-08-27 | A. Ahlstrom Corporation | Minimal effluents discharge pulp mill with chemical recovery |
JPH08170288A (ja) * | 1994-12-15 | 1996-07-02 | Mitsubishi Heavy Ind Ltd | ソーダ回収ボイラの捕集灰からの食塩及びカリウム塩の除去方法 |
SE9502583D0 (sv) * | 1995-07-12 | 1995-07-12 | Eka Chemicals Ab | Leaching process |
US5922171A (en) | 1997-01-24 | 1999-07-13 | Eco-Tec Limited | Method and apparatus for removing sodium chloride from pulping chemicals using an amphoteric ion-exchange resin |
US8052763B2 (en) * | 2008-05-29 | 2011-11-08 | Hpd, Llc | Method for removing dissolved solids from aqueous waste streams |
BRPI0924612B1 (pt) | 2009-05-06 | 2018-08-07 | Metso Power Ab | Processo aperfeiçoado para lixiviação de cinza de precipitador eletrostático proveniente de caldeira de recuperação |
US8246779B2 (en) | 2009-09-24 | 2012-08-21 | Noram Engineering And Constructors Ltd. | Maintenance of sulfur concentration in Kraft pulp processes |
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- 2013-07-03 CN CN201380039538.7A patent/CN104603357B/zh active Active
- 2013-07-03 JP JP2015524298A patent/JP6014256B2/ja active Active
- 2013-07-03 WO PCT/US2013/049293 patent/WO2014018239A1/en active Application Filing
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BR112015001412B1 (pt) | 2021-05-18 |
WO2014018239A1 (en) | 2014-01-30 |
CN104603357A (zh) | 2015-05-06 |
CN104603357B (zh) | 2017-03-29 |
JP2015522726A (ja) | 2015-08-06 |
ZA201500458B (en) | 2016-09-28 |
CL2015000196A1 (es) | 2015-08-28 |
AU2013203860A1 (en) | 2014-02-13 |
AU2013203860B2 (en) | 2015-01-29 |
CA2880041A1 (en) | 2014-01-30 |
CA2880041C (en) | 2017-02-14 |
BR112015001412A2 (pt) | 2017-07-04 |
US8721837B2 (en) | 2014-05-13 |
US20140027076A1 (en) | 2014-01-30 |
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