NO167161B - Fremgangsmaate for aa rense harpiksholdig avlut ved fremstilling av cellulosemasse. - Google Patents
Fremgangsmaate for aa rense harpiksholdig avlut ved fremstilling av cellulosemasse. Download PDFInfo
- Publication number
- NO167161B NO167161B NO885720A NO885720A NO167161B NO 167161 B NO167161 B NO 167161B NO 885720 A NO885720 A NO 885720A NO 885720 A NO885720 A NO 885720A NO 167161 B NO167161 B NO 167161B
- Authority
- NO
- Norway
- Prior art keywords
- percent
- per cent
- manganese
- iron
- welding rod
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract description 6
- 238000004140 cleaning Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 29
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 239000011651 chromium Substances 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- 239000010955 niobium Substances 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 229910052715 tantalum Inorganic materials 0.000 claims description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 4
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- -1 alkaline earth metal carbonate Chemical class 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000010433 feldspar Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims 1
- PJUWKGOVRGAPNG-UHFFFAOYSA-N aluminum;potassium;sodium;silicate Chemical compound [Na+].[Al+3].[K+].[O-][Si]([O-])([O-])[O-] PJUWKGOVRGAPNG-UHFFFAOYSA-N 0.000 claims 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims 1
- 239000000356 contaminant Substances 0.000 claims 1
- 239000010436 fluorite Substances 0.000 claims 1
- 229910052747 lanthanoid Inorganic materials 0.000 claims 1
- 150000002602 lanthanoids Chemical class 0.000 claims 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 1
- 239000004408 titanium dioxide Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract 6
- 239000011347 resin Substances 0.000 abstract 4
- 229920005989 resin Polymers 0.000 abstract 4
- 229920002678 cellulose Polymers 0.000 abstract 3
- 239000001913 cellulose Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 229920000620 organic polymer Polymers 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- D21C11/0014—Combination of various pulping processes with one or several recovery systems (cross-recovery)
-
- 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
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S210/00—Liquid purification or separation
- Y10S210/928—Paper mill waste, e.g. white water, black liquor treated
Description
Omhyllet svelsestav.
Foreliggende oppfinnelse angår en omhyllet sveieestav sam skal tjene til å frembringe et umagnetisk sveisegods som inne-holder
maksimalt 0,1 procent carbon
0,5 - 2,5 procent ailicium ;, 2 - 10 procent mangan
16 - 25 procent krom
10 - 25 procent nikkel i
1-5 procent molybden i 0,1 - 0,5 procent nitrogen idet resten er jern med de vanlige forurensninger. Sveisegodset skal oppvise en permeabilitet på hbyst 1,01 Gauss/<i >Oersted, d.v.s. det må være stabilt austenitisk. Bet kan også
inneholde inntil 1 procent av hvert av metallene vanadium, zirkonium, titan og niob/tantal. Por på kjent vis å nedsette varme-risstilboyeligheten ved stabilt austenitisk sveisegods er der til-satt mangan.
Det er kjent ved fremstillingen av slike sveisegods å anvende sveisestaver med omhylling som er kalkbasiske, men med slike sveisestaver oppstår der vanskeligheter når der må sveises i så-kalte tvangsstillinger, for eksempel over hodet.
Målet ved foreliggende oppfinnelse er å fremskaffe en sveisestav for fremstilling av slikt sveisegods som sikrer en upåklagelig sveising og forer til sommer som er rissfrie og porefrie. Slaggen skal la seg fjerne godt fra sveisesbmmen. Med sveisestaven skal der kunne sveises i alle stillinger. Dessuten skal det være like-gyldig om der arbeides med vekselstrora eller med likestrom under tilslutning til pluss- eller minuspol.
Oppgaven loses idet der anvendes en kjernetråd av et stål med
idet resten er jern med de vanlige forurensninger, såvel
som eventuelt også inntil 1 prosent av hvert av metallene vanadium, zirkonium, titan og niob/tantal, med en omhylling av folgende sammensetning:
Som særlig hensiktsmessig har det vist seg å anvende som kjernetråd et stål med
0,015 procent carbon
0,6 procent silicium
7,3 procent mangan
2,8 procent molybden
20,8 procent krom
15,5 procent nikkel
0,14 procent nitrogen
idet resten er jern med de vanlig forurensninger.
I omhyllingen skal jordalkalimetallcarbonater være tilstede
og ået er hensiktsmessig å velge bariumcarbonat og calciumcarbonat, og da i et forhold på ca. 1:4. Silikatene innfores fortrinns-vis i form av feltspat. Metallene, og da spesielt nikkel og krom, oker de gunstige sveiseegenskaper. Mangan og nikkel i omhyllingen sikrer i forbindelse med nitrogeninnholdet i kjernetråden stabili-seringen av austeniten i sveisegodset.
Med en omhyllet sveisestav i hvilken kjernen og omhyllingen
er avstemt med hverandre ifblge foreliggende oppfinnelse, fåes en upåklagelig sveising i alle sveisestillinger idet sveisestaven ved anvendelse av likestrbm kan tilsluttes såvel minus- som plusspolen. Dette er særlig viktig ved skipsbygning hvor der i alminnelighet arbeides med ulegerte stål og tilslutningen av sveisestaven folgelig skjer til minuspolen.. Med sveisestaven ifblge oppfinnelsen er tilslutning til minuspolen mulig selv om det dreier seg om en ulegert sveisestav, slik at de temmelig omfangsrike sveiseinnretninger i verftene også kan anvendes for disse sveisestaver.
Dessuten er tilslutningen til vekselstrbm mulig. Der fåes sveisesbmmer som er riss- og porefrie, og der kan utfores for-bindelsessveiser og påfbringssveiser på det samme eller lignende stål ved platetykkelser på 1,5 - 30 mm. Skjbtene er stabilt austenitisk og sikker mot varmeriss.
Det lykkes å gi sveisegodset teknologiske egenskaper som til-fredsstiller aller fordringer. Således er materialet sikkert mot angrep av havvann og mot kornnedbrytning. Oarboninnholdet i sveisegodset er på grunn av den lave carbontilbrenning så lavt at der også ved kortvarig opptredende temperaturer mellom 550 og>850°C kan utfores varmformgivning uten skade på seighetsegenskapene og de fcorrosjonskjemiske egenskaper.
Sveisestavene ifblge oppfinnelsen kan også anvendes der hvor
de sveisede gjenstander utsettes for ytterst lave temperaturer,
spesielt i kjbleteknikken, og derfor må bibeholde en tilstrekkelig slagseighet.
Claims (4)
1. Omhyllet sveisestav til fremstilling av sveisegods av fbl-gende sammensetning:
maksimalt 0,1 procent carbon 0,5 - 2,5 procent silicium 2 - 10 procent mangan 16 - 25 procent krom 10 - 25 procent nikkel 1 - 5 procent molybden 0,1 - 0,5 procent nitrogen idet resten er jern med de vanlige forurensninger, og eventuelt dessuten inntil 1 procent av hvert av metallene vanadium, zirkonium, titan og niob/tantal, karakterisert ved at kjernetråden består av et stål med maksimalt 0,05 procent carbon 0,4 - 1,2 procent silicium, 2, - 9 procent mangan, 2,5 - 3,5 procent molybden 19 - 23 procent krom 14 - 17 procent nikkel 0,1 - 0,5 procent nitrogen idet resten er jern med de vanlige forurensninger, og eventuelt dessuten inntil 1 procent av hvert av metallene vanadium, zirkonium, titan og niob/tantal, og at omhyllingen er sammensatt som fblger: 3 - 6 procent flusspat 28 - 37 procent jordalkalicarbonat 20-40 procent titandioxyd 5 - 9 procent kalium-natrium-aluminium-silikat 3-6 procent mangan 5-9 procent nikkel 6 - 11 procent krom
inntil 10 procent jern, såvel som eventuelt 0,5 - 10 procent carbonater av lanthanidene.
2. Sveisestav ifdlge krav 1, karakterisert ved at der som kjernetråd anvendes et stål med: 0,015 procent carbon 0,6 procent silicium 7,3 procent mangan 2,8 procent molybden 20,8 procent krom 15,5 procent nikkel 0,14 procent nitrogen
idet resten er jern med de vanlige forurensninger .
3. Sveisestav ifblge krav 1 eller 2, karakterisert v e d at der i omhyllingen som jordalkalimetallcarbonat anvendes bariumcarbonat og calciumcarbonat i forholdet ca. 1:4.
4. Sveisestav ifblge krav 1-3 , karakterisert ved at der i omhyllingen anvendes feltspat.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8705141A SE459925B (sv) | 1987-12-23 | 1987-12-23 | Avskiljning av harts ur massaavlutar |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| NO885720D0 NO885720D0 (no) | 1988-12-22 |
| NO885720L NO885720L (no) | 1989-06-26 |
| NO167161B true NO167161B (no) | 1991-07-01 |
| NO167161C NO167161C (no) | 1991-10-09 |
Family
ID=20370697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO885720A NO167161C (no) | 1987-12-23 | 1988-12-22 | Fremgangsmaate for aa rense harpiksholdig avlut ved fremstilling av cellulosemasse. |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US4921613A (no) |
| EP (1) | EP0321989B1 (no) |
| JP (1) | JP2649399B2 (no) |
| AT (1) | ATE72848T1 (no) |
| AU (1) | AU607028B2 (no) |
| CA (1) | CA1307879C (no) |
| DE (1) | DE3868610D1 (no) |
| FI (1) | FI91004C (no) |
| NO (1) | NO167161C (no) |
| SE (1) | SE459925B (no) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5076937A (en) * | 1990-07-26 | 1991-12-31 | Unitog Rental Services, Inc. | Method for removal of fat, oil and grease from laundry wash water |
| SE500783C2 (sv) * | 1992-05-05 | 1994-09-05 | Eka Nobel Ab | Sätt att rena vedhartsinnehållande process- eller avloppsvatten |
| US5368742A (en) * | 1993-06-01 | 1994-11-29 | B. G. Roberts Chemicals Inc. | Method of removing toxic resin acids and fatty acids from pulp and paper effluent and other streams |
| US5635024A (en) * | 1993-08-20 | 1997-06-03 | Bountiful Applied Research Corporation | Process for separating lignins and dissolved organic compounds from kraft spent liquor |
| SE504789C2 (sv) * | 1994-02-21 | 1997-04-28 | Kemira Kemi Ab | Förfarande för tungmetalleliminering från bakvattensystem inom pappers- och pappersmassaindustrien |
| US5679221A (en) * | 1994-08-26 | 1997-10-21 | Westvaco Corporation | Method for aluminum reduction in recycled pulp and paper |
| US6063747A (en) * | 1995-07-25 | 2000-05-16 | The Procter & Gamble Company | Detergent compositions in compacted solid form |
| US6830696B1 (en) | 2003-12-01 | 2004-12-14 | University Of Florida Research Foundation, Inc. | Treatment of spent pulping liquor with lignin separation to recover alkali pulping chemicals in manufacture of paper pulp |
| AT7873U1 (de) * | 2004-08-11 | 2005-10-17 | Hammerschmid Andrea | Verfahren zur herstellung von holzfaserplatten im nassverfahren |
| US20070284068A1 (en) * | 2006-05-19 | 2007-12-13 | The Research Foundation Of State University Of New York | Methods for carbonate pretreatment and pulping of cellulosic material |
| US8470172B2 (en) | 2007-01-09 | 2013-06-25 | Siemens Industry, Inc. | System for enhancing a wastewater treatment process |
| US20100213123A1 (en) | 2007-01-09 | 2010-08-26 | Marston Peter G | Ballasted sequencing batch reactor system and method for treating wastewater |
| EP2107947B1 (en) | 2007-01-09 | 2016-03-16 | Evoqua Water Technologies LLC | A system and method for removing dissolved contaminants, particulate contaminants, and oil contaminants from industrial waste water |
| US20110036771A1 (en) | 2007-01-09 | 2011-02-17 | Steven Woodard | Ballasted anaerobic system and method for treating wastewater |
| US8613781B2 (en) * | 2007-08-08 | 2013-12-24 | Harrison R. Cooper | Lignin dewatering process |
| US8303767B2 (en) * | 2008-03-18 | 2012-11-06 | The Research Foundation Of State University Of New York | Methods of pretreating comminuted cellulosic material with carbonate-containing solutions |
| EP2858954A1 (en) | 2012-06-11 | 2015-04-15 | Evoqua Water Technologies LLC | Treatment using fixed film processes and ballasted settling |
| CA2881703C (en) | 2012-09-26 | 2020-12-22 | Evoqua Water Technologies Llc | System for measuring the concentration of magnetic ballast in a slurry |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1442306A (en) * | 1923-01-16 | Oil-elotation apparatus | ||
| US2382010A (en) * | 1942-01-19 | 1945-08-14 | Lillian F Hodges | Process for the treatment of paper mill effluent |
| DE1206861B (de) * | 1960-04-08 | 1965-12-16 | Metallgesellschaft Ag | Vorrichtung zur kontinuierlichen Dosierung von Flockungsmitteln |
| US3666663A (en) * | 1969-11-24 | 1972-05-30 | Chicago Bridge & Iron Co | Method and apparatus for dispersing coagulant into a water stream |
| SE357950B (no) * | 1972-02-22 | 1973-07-16 | Casco Ab | |
| US3977967A (en) * | 1973-05-10 | 1976-08-31 | Union Carbide Corporation | Ultrafiltration apparatus and process for the treatment of liquids |
| JPS525781B2 (no) * | 1973-06-06 | 1977-02-16 | ||
| US4089780A (en) * | 1975-10-21 | 1978-05-16 | Nalco Chemical Company | Color removal process |
| JPS53134901A (en) * | 1977-04-27 | 1978-11-25 | Mitsui Mining & Smelting Co | Waste material treating |
| JPS5535965A (en) * | 1978-09-06 | 1980-03-13 | Kanzaki Paper Mfg Co Ltd | Treatment of pulp mill waste water |
| SE412920B (sv) * | 1979-02-22 | 1980-03-24 | Basf Wyandotte Corp | Forfarande for utvinning av tallolja ur talloljesapa varvid en terpolymer av omettad karboxylsyra, ester av omettad karboxylsyra samt allylalkohol tillsettes talloljesapa vid surgorningssteget |
| DE3038241C2 (de) * | 1980-10-10 | 1983-01-05 | Gesellschaft für Biotechnologische Forschung mbH (GBF), 3300 Braunschweig | Verfahren zur Ausfällung von Ligninsulfonaten aus Sulfitablaugen |
| JPS57201584A (en) * | 1981-05-20 | 1982-12-10 | Shirubaaton Taanarii Ltd | Method and device for clarifying waste water |
| SE452347B (sv) * | 1984-01-16 | 1987-11-23 | Boliden Ab | Forfarande vid rening av hartskontaminerade lutar vid en pappersmassaindustri |
| AU584715B2 (en) * | 1985-03-13 | 1989-06-01 | Stone Container Corporation | Pulp decolor process |
| US4738750A (en) * | 1986-02-10 | 1988-04-19 | Stone Container Corp. | System and method for treating pulp and paper mill waste water |
-
1987
- 1987-12-23 SE SE8705141A patent/SE459925B/sv not_active IP Right Cessation
-
1988
- 1988-12-14 AU AU26842/88A patent/AU607028B2/en not_active Ceased
- 1988-12-15 CA CA000586061A patent/CA1307879C/en not_active Expired - Fee Related
- 1988-12-22 NO NO885720A patent/NO167161C/no not_active IP Right Cessation
- 1988-12-22 FI FI885951A patent/FI91004C/fi not_active IP Right Cessation
- 1988-12-22 AT AT88121538T patent/ATE72848T1/de not_active IP Right Cessation
- 1988-12-22 EP EP88121538A patent/EP0321989B1/en not_active Expired - Lifetime
- 1988-12-22 DE DE8888121538T patent/DE3868610D1/de not_active Expired - Lifetime
- 1988-12-23 JP JP63327500A patent/JP2649399B2/ja not_active Expired - Fee Related
- 1988-12-23 US US07/288,932 patent/US4921613A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AU2684288A (en) | 1989-06-29 |
| EP0321989A1 (en) | 1989-06-28 |
| SE8705141L (sv) | 1989-06-24 |
| FI91004B (fi) | 1994-01-14 |
| EP0321989B1 (en) | 1992-02-26 |
| CA1307879C (en) | 1992-09-29 |
| DE3868610D1 (de) | 1992-04-02 |
| SE8705141D0 (sv) | 1987-12-23 |
| AU607028B2 (en) | 1991-02-21 |
| NO885720L (no) | 1989-06-26 |
| ATE72848T1 (de) | 1992-03-15 |
| JP2649399B2 (ja) | 1997-09-03 |
| FI91004C (fi) | 1994-04-25 |
| US4921613A (en) | 1990-05-01 |
| JPH01201595A (ja) | 1989-08-14 |
| SE459925B (sv) | 1989-08-21 |
| NO885720D0 (no) | 1988-12-22 |
| NO167161C (no) | 1991-10-09 |
| FI885951A (fi) | 1989-06-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |