FI881986A0 - Kuiva sementtikoostumus ja ferrosulfaatin käyttö kromaattia neutraloivana sementin lisäaineena - Google Patents

Kuiva sementtikoostumus ja ferrosulfaatin käyttö kromaattia neutraloivana sementin lisäaineena

Info

Publication number: FI881986A0
Authority: FI; Finland
Prior art keywords: cement; mill; dry; chromate; ferrous sulphate
Prior art date: 1980-12-17

Application number

FI881986A

Other languages

English (en)

Swedish (sv)

Other versions

FI97466C (fi

FI881986A (fi

FI97466B (fi

Inventor

Poul Lehn Rasmussen

Original Assignee

Aalborg Portland Cement

Priority date (The priority date 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 date listed.)

1980-12-17

Filing date

1988-04-27

Publication date

1988-04-27

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26067362&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI881986(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1988-04-27 Application filed by Aalborg Portland Cement filed Critical Aalborg Portland Cement

1988-04-27 Publication of FI881986A0 publication Critical patent/FI881986A0/fi

1988-04-27 Publication of FI881986A publication Critical patent/FI881986A/fi

1996-09-13 Application granted granted Critical

1996-09-13 Publication of FI97466B publication Critical patent/FI97466B/fi

1996-12-27 Publication of FI97466C publication Critical patent/FI97466C/fi

Classifications

- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/149—Iron-sulfates
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/48—Clinker treatment
- C04B7/52—Grinding ; After-treatment of ground cement
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/10—Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
- C04B2111/1075—Chromium-free or very low chromium-content materials
- C04B2111/1081—Chromium VI, e.g. for avoiding chromium eczema

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Ceramic Engineering (AREA)
Materials Engineering (AREA)
Structural Engineering (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Curing Cements, Concrete, And Artificial Stone (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Soil Conditioners And Soil-Stabilizing Materials (AREA)
Paints Or Removers (AREA)
Golf Clubs (AREA)
Bulkheads Adapted To Foundation Construction (AREA)
Graft Or Block Polymers (AREA)
Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Analysing Materials By The Use Of Radiation (AREA)
Sampling And Sample Adjustment (AREA)

FI881986A 1980-12-17 1988-04-27 Kuiva sementtikoostumus ja ferrosulfaatin käyttö kromaattia neutraloivana sementin lisäaineena FI97466C (fi)

Applications Claiming Priority (8)

Application Number	Priority Date	Filing Date	Title
DK538080		1980-12-17
DK538080		1980-12-17
DK414081		1981-09-17
DK414081		1981-09-17
PCT/DK1981/000115 WO1982002040A1 (en)	1980-12-17	1981-12-16	A method and a plant for producing a dry cement composition
DK8100115		1981-12-16
FI822844A FI822844A0 (fi)	1980-12-17	1982-08-16	Foerfarande och anlaeggning foer framstaellning av en torr cementkomposition
FI822844		1982-08-16

Publications (4)

Publication Number	Publication Date
FI881986A0 true FI881986A0 (fi)	1988-04-27
FI881986A FI881986A (fi)	1988-04-27
FI97466B FI97466B (fi)	1996-09-13
FI97466C FI97466C (fi)	1996-12-27

Family

ID=26067362

Family Applications (3)

Application Number	Title	Priority Date	Filing Date
FI822844A FI822844A0 (fi)	1980-12-17	1982-08-16	Foerfarande och anlaeggning foer framstaellning av en torr cementkomposition
FI845157A FI845157L (fi)	1980-12-17	1984-12-28	Foerfarande och anlaeggning foer framstaellning av en torr cementkomposition.
FI881986A FI97466C (fi)	1980-12-17	1988-04-27	Kuiva sementtikoostumus ja ferrosulfaatin käyttö kromaattia neutraloivana sementin lisäaineena

Family Applications Before (2)

Application Number	Title	Priority Date	Filing Date
FI822844A FI822844A0 (fi)	1980-12-17	1982-08-16	Foerfarande och anlaeggning foer framstaellning av en torr cementkomposition
FI845157A FI845157L (fi)	1980-12-17	1984-12-28	Foerfarande och anlaeggning foer framstaellning av en torr cementkomposition.

Country Status (17)

Country	Link
US (2)	US4572739A (fi)
EP (3)	EP0160747A1 (fi)
JP (1)	JPS57501961A (fi)
AT (2)	ATE36512T1 (fi)
AU (1)	AU545867B2 (fi)
BR (1)	BR8108922A (fi)
CA (1)	CA1178976A (fi)
DD (1)	DD201882A5 (fi)
DE (3)	DE3176847D1 (fi)
DK (1)	DK147637C (fi)
ES (1)	ES508033A0 (fi)
FI (3)	FI822844A0 (fi)
IE (3)	IE891754L (fi)
IS (2)	IS1443B6 (fi)
NO (2)	NO163223C (fi)
PL (1)	PL136035B1 (fi)
WO (1)	WO1982002040A1 (fi)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1984001942A1 (en) *	1982-11-17	1984-05-24	Aalborg Portland Cement	Methods of producing a dry cement mixture and a free flowing ferrous sulphate hydrate product and products prepared by the methods
AU2434284A (en) *	1983-01-20	1984-08-15	A.B. Cementa	Ferrogypsum in the manufacture of cement
US4962006A (en) *	1988-02-24	1990-10-09	Color-Crete	Method of coloring cement
US5268159A (en) *	1990-01-30	1993-12-07	Bayer Aktiengesellschaft	Process for the production of storable, free-flowing hydrated ferrous sulfate
DK93690D0 (da) *	1990-04-11	1990-04-11	Aalborg Portland Cement	Cementkomposition
JPH07115895B2 (ja) *	1990-07-19	1995-12-13	株式会社ネオテック	生コンクリート等の洗い残渣再利用法及びその装置
DE4321077A1 (de)	1993-06-24	1995-01-05	Dyckerhoff Ag	Verfahren zur Depression der Allergien verursachenden Wirkung von wasserlöslichem Cr·V··I· in Zementen und/oder zementhaltigen Zubereitungen
IT1274718B (it) *	1994-08-19	1997-07-24	Italcementi Spa	Cementi esenti da cromati e un procedimento per la loro preparazione
US5792384A (en) *	1997-01-31	1998-08-11	Warren; James R.	Concrete masons' hand rinse
DE19744035C2 (de) *	1997-10-06	2000-09-28	Verein Deutscher Zementwerke E	Verfahren zur Zugabe eines Zusatzmittels zu einem Zement, der Hautekzeme verursachendes Chromat enthält und dem Eisen(II)-sulfat zugemischt wird
DE19833603C2 (de) *	1998-07-25	2000-06-15	Economic Versicherungs Vermitt	Verwendung von Zinn(II)sulfat
SK282086B6 (sk) *	1999-10-12	2001-10-08	Pova�Sk� Cement�Re�, A. S.	Spôsob výroby cementu so zníženým obsahom chrómu
BG64752B1 (bg) *	1999-12-14	2006-02-28	Cementarny A Vapenky Prachovice, A.S.	Метод за обогатяване на сух цимент
TW576825B (en)	2000-08-10	2004-02-21	Iner Ae	Method for liquid chromate ion and oxy-metal ions removal and stabilization
FR2844448B1 (fr) *	2002-09-17	2006-06-23	Lcw Les Colorants Wackherr	Methode de preparation extemporanee de compositions cosmetiques ayant la texture d'une creme, et compositions pour la mise en oeuvre de cette methode
FR2844800B1 (fr) *	2002-09-19	2006-07-21		Pigments d'oxyde de chrome a teneur reduite en chrome(vi)
DE20311049U1 (de) *	2003-07-17	2003-09-18	Ferro Duo GmbH, 47053 Duisburg	Hydraulisches Bindemittel
DE10332530A1 (de)	2003-07-17	2005-02-10	Kerr-Mcgee Pigments Gmbh	Verfahren zur Reduktion des löslichen Chromatgehaltes in Zement sowie eine Zubereitung aus Zement und wasserlöslichen Metallsulfaten
CN100441531C (zh) *	2003-11-21	2008-12-10	格雷斯公司	硫酸盐分散体铬酸盐还原剂
JP4712719B2 (ja) *	2003-11-21	2011-06-29	ダブリュー・アール・グレイス・アンド・カンパニー−コネチカット	硫酸塩分散クロム酸塩還元剤
EP1544182B2 (de) *	2003-12-12	2016-04-06	Kehrmann Alexander	Hydraulisches Bindemittel
KR101168878B1 (ko) *	2004-02-04	2012-07-30	더블유.알. 그레이스 앤드 캄파니-콘.	시멘트 분쇄용 액체 첨가제
US7232483B2 (en)	2005-02-01	2007-06-19	W. R. Grace & Co.-Conn.	Cement composition having chromium reducer
KR101265569B1 (ko) *	2005-06-02	2013-05-21	더블유.알. 그레이스 앤드 캄파니-콘.	바이오매스-유도된 분쇄 보조제
CZ300050B6 (cs) *	2005-09-30	2009-01-21	Peringer@František	Zpusob úpravy manipulacních vlastností heptahydratovaného síranu železnatého, zejména snížení jeho hygroskopických vlastností
US7296626B2 (en)	2005-11-08	2007-11-20	Halliburton Energy Services, Inc.	Liquid additive for reducing water-soluble chromate
FR2894956A1 (fr) *	2005-12-20	2007-06-22	Lafarge Sa	Particules de sulfate de fer enrobees et leur utilisation dans la preparation de ciments
US20070237493A1 (en) *	2006-03-24	2007-10-11	I-Sho Limited	Providing user access to digital content data
PL1886979T3 (pl)	2006-08-11	2013-02-28	Gcp Applied Tech Inc	Związki koordynacyjne metali do redukcji chromu
EP1992595A1 (en) *	2007-05-10	2008-11-19	Lafarge	Process to reduce the amount of Cr (VI) in a cement-containing composition and a composition comprising cement and coated metallic sulphate particles
DE102009002916A1 (de)	2009-05-07	2010-11-11	Mig Material Innovative Gesellschaft Mbh	Reduktionsverstärker für Zinn-II-Verbindungen
DE102009036848B4 (de)	2009-08-10	2012-02-02	Bauer Spezialtiefbau Gmbh	Verfahren zur Herstellung eines Bauwerkelementes im Boden sowie Bodenmörtel
DE202010002838U1 (de)	2010-02-23	2010-05-12	Mig Material Innovative Gesellschaft Mbh	Zusammensetzung für die Reduktion von Cr(VI)-Ionen in Zement oder zementhaltigen Produkten
DE102010009444A1 (de)	2010-02-23	2011-08-25	MIG Material Innovative Gesellschaft mbH, 33154	Zusammensetzung für die Reduktion von Cr(VI)-Ionen in Zement oder zementhaltigen Produkten
EP2363386A1 (de)	2010-02-23	2011-09-07	Mig Material Innovative Gesellschaft MBH	Reduktion von Cr(VI)-Ionen in Zement oder zementhaltigen Produkten
DE102011008967B4 (de) *	2011-01-12	2014-10-30	Khd Humboldt Wedag Gmbh	Anlage zur Herstellung von Zement mit zentraler Mahleinheit
KR101046557B1 (ko)	2011-03-15	2011-07-05	(유)코리아레미콘	음이온을 함유하는 용수를 이용한 친환경 레미콘 조성물
ITMI20120764A1 (it)	2012-05-07	2013-11-08	Mapei Spa	Additivo per cemento portland costituito da un riducente incapsulato in una matrice polimerica
CN104386506A (zh) *	2014-10-24	2015-03-04	广德县瑞龙新型材料有限公司	一种萤石储料计量装置
CN108274641A (zh) *	2018-01-22	2018-07-13	扬州扬工机械有限公司	一种新型商混站外加剂输送管路
CN113307528A (zh) *	2021-06-02	2021-08-27	龙蟒佰利联集团股份有限公司	一种水泥降铬剂及制备、使用方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US931884A (en) *	1908-09-14	1909-08-24	Meramec Portland Cement & Material Company	Waterproof portland cement and process of making same.
GB191021315A (en) *	1909-10-15	1910-10-27	Thorrand Durandy Et Cie Soc	Improvements in and relating to the Preparation of Cement.
US2316039A (en) *	1940-04-04	1943-04-06	Du Pont	Cement composition
US2307270A (en) *	1940-08-04	1943-01-05	Mellon Inst Of Ind Res	Building material
US3035985A (en) *	1959-09-30	1962-05-22	Merck & Co Inc	Chewable fatty coating of iron particles
CH427620A (de) *	1961-10-24	1966-12-31	Licencia Talalmanyokat	Verfahren zur Erhöhung der Endfestigkeit von zementhaltigen, hydraulisch bindenden Massen, insbesondere von Beton
GB970897A (en) *	1962-06-26	1964-09-23	Smidth & Co As F L	Improvements relating to grinding cement clinker and similar materials
AT260772B (de) *	1965-01-25	1968-03-25	Polysius Gmbh	Verfahren zur Herstellung thermisch stabiler und abriebfester Granalien aus unplastischem Zementrohmehl
US3425892A (en) *	1965-10-22	1969-02-04	Grace W R & Co	Cement set retarder
DE2042227B2 (de) *	1970-08-26	1978-03-30	Loesche Hartzerkleinerungs- Und Zementmaschinen Kg, 4000 Duesseldorf	Einrichtung für die automatische Proportionierung von Rohstoffkomponenten, insbesondere für die Zementproduktion
CH534643A (fr) *	1971-02-16	1973-03-15	Service Neuchatelois De Medeci	Procédé de fabrication d'un ciment
JPS4823479U (fi) *	1971-07-26	1973-03-17
DE2221454A1 (de) *	1972-05-02	1973-11-15	Aloys Dr Wuestefeld	Verfahren zur verbesserung der verwendbarkeit von metallpulver als treibmittel in alkalischen medien durch schichtbildung auf der metalloberflaeche
JPS5144535A (ja) *	1974-10-15	1976-04-16	Matsushita Electric Ind Co Ltd	Maisetsukinzokutaiboshokusochi
US4122059A (en) *	1976-03-10	1978-10-24	World Chemical Industry, Inc.	Refractory compositions
GB1581539A (en) *	1976-10-07	1980-12-17	Laporte Industries Ltd	Making plaster from ferrous sulphate
JPS53144872A (en) *	1977-05-25	1978-12-16	Takenaka Komuten Co	Solidification method* solidifying agent and additive aid for wastes
DE2817080C3 (de) *	1978-04-19	1985-04-04	Skw Trostberg Ag, 8223 Trostberg	Feste Zusatzmittel für mit Wasser erhärtende Bindemittel und deren Verwendung
US4415367A (en) *	1978-09-18	1983-11-15	The Dow Chemical Company	Pumpable thixotropic cement slurries for use in cementing pipes in a well

1981
- 1981-10-28 IS IS3024A patent/IS1443B6/is unknown
- 1981-12-15 DK DK557081A patent/DK147637C/da not_active IP Right Cessation
- 1981-12-16 CA CA000392389A patent/CA1178976A/en not_active Expired
- 1981-12-16 BR BR8108922A patent/BR8108922A/pt unknown
- 1981-12-16 ES ES508033A patent/ES508033A0/es active Granted
- 1981-12-16 AU AU79362/82A patent/AU545867B2/en not_active Expired
- 1981-12-16 WO PCT/DK1981/000115 patent/WO1982002040A1/en active IP Right Grant
- 1981-12-16 US US06/617,835 patent/US4572739A/en not_active Expired - Lifetime
- 1981-12-16 JP JP57500213A patent/JPS57501961A/ja active Pending
- 1981-12-17 DD DD81235902A patent/DD201882A5/de not_active IP Right Cessation
- 1981-12-17 EP EP84115414A patent/EP0160747A1/en not_active Withdrawn
- 1981-12-17 EP EP81110557A patent/EP0054314B1/en not_active Expired
- 1981-12-17 AT AT84115413T patent/ATE36512T1/de not_active IP Right Cessation
- 1981-12-17 IE IE891754A patent/IE891754L/xx unknown
- 1981-12-17 DE DE19813176847 patent/DE3176847D1/de not_active Expired
- 1981-12-17 IS IS2693A patent/IS1487B/is unknown
- 1981-12-17 IE IE1754/89A patent/IE54583B1/en not_active IP Right Cessation
- 1981-12-17 IE IE2979/81A patent/IE54582B1/en not_active IP Right Cessation
- 1981-12-17 DE DE8181110557T patent/DE3174944D1/de not_active Expired
- 1981-12-17 PL PL1981234277A patent/PL136035B1/pl unknown
- 1981-12-17 EP EP84115413A patent/EP0160746B1/en not_active Expired
- 1981-12-17 AT AT81110557T patent/ATE20731T1/de not_active IP Right Cessation
- 1981-12-17 DE DE198181110557T patent/DE54314T1/de active Pending
1982
- 1982-08-13 NO NO822759A patent/NO163223C/no not_active IP Right Cessation
- 1982-08-16 FI FI822844A patent/FI822844A0/fi not_active Application Discontinuation
1984
- 1984-12-28 FI FI845157A patent/FI845157L/fi not_active Application Discontinuation
1987
- 1987-07-21 US US07/077,004 patent/US4784691A/en not_active Expired - Lifetime
1988
- 1988-04-27 FI FI881986A patent/FI97466C/fi not_active IP Right Cessation
- 1988-11-03 NO NO884903A patent/NO164769C/no not_active IP Right Cessation

Also Published As

Publication number	Publication date
NO884903L (no)	1982-08-13
IS2693A7 (is)	1982-06-18
NO884903D0 (no)	1988-11-03
IE54583B1 (en)	1989-12-06
PL234277A1 (fi)	1982-08-16
AU7936282A (en)	1982-07-01
FI97466C (fi)	1996-12-27
WO1982002040A1 (en)	1982-06-24
DE3176847D1 (fi)	1988-09-22
IS1487B (is)	1992-06-30
PL136035B1 (en)	1986-01-31
NO822759L (no)	1982-08-13
CA1178976A (en)	1984-12-04
FI881986A (fi)	1988-04-27
EP0160746B1 (en)	1988-08-17
FI845157A0 (fi)	1984-12-28
DK557081A (da)	1982-06-18
DK147637B (da)	1984-10-29
BR8108922A (pt)	1982-11-30
FI822844L (fi)	1982-08-16
AU545867B2 (en)	1985-08-01
IE54582B1 (en)	1989-12-06
JPS57501961A (fi)	1982-11-04
NO163223C (no)	1998-06-09
ES8304046A1 (es)	1983-02-16
EP0160746A1 (en)	1985-11-13
US4784691A (en)	1988-11-15
ATE36512T1 (de)	1988-09-15
ATE20731T1 (de)	1986-08-15
IS3024A7 (is)	1982-06-18
NO163223B (no)	1990-01-15
EP0160747A1 (en)	1985-11-13
FI845157L (fi)	1984-12-28
NO164769B (no)	1990-08-06
IS1443B6 (is)	1990-12-14
IE812979L (en)	1982-06-17
IE811754L (en)	1982-02-04
DK147637C (da)	1985-05-13
EP0054314A1 (en)	1982-06-23
FI822844A0 (fi)	1982-08-16
FI97466B (fi)	1996-09-13
DE54314T1 (de)	1983-04-14
IE891754L (en)	1982-06-17
US4572739A (en)	1986-02-25
NO164769C (no)	1998-06-09
EP0054314B1 (en)	1986-07-16
DD201882A5 (de)	1983-08-17
DE3174944D1 (en)	1986-08-21
ES508033A0 (es)	1983-02-16

Publication	Publication Date	Title
FI881986A0 (fi)	1988-04-27	Kuiva sementtikoostumus ja ferrosulfaatin käyttö kromaattia neutraloivana sementin lisäaineena
NZ335593A (en)	2001-06-29	Pesticidal anisotropic aggregate compositions and method for treating plants with exogenous chemicals
ES8606223A1 (es)	1986-04-01	Procedimiento para preparar una composicion de cemento homogenea
JPS56163213A (en)	1981-12-15	Desulfurizer powder composition for molten iron
JPS5656298A (en)	1981-05-18	Preparation of mini pellet
JPS56100920A (en)	1981-08-13	Improvement of water content poorsoil
JPS55165828A (en)	1980-12-24	Slurry conveying method
JPS5738701A (en)	1982-03-03	Germinating and rooting preventive
JPS5647525A (en)	1981-04-30	Compounding method for lime-containing slurry into sintering base material
JPS5548576A (en)	1980-04-07	Manufacturing method of grinding wheel
JPS5718792A (en)	1982-01-30	Granulation of coal
JPS5472882A (en)	1979-06-11	Method of transporting slurry
DK256984A (da)	1984-05-24	Toer cementsammensaetning
PL127383B2 (en)	1983-10-31	Soil stabilization method
CZ46795A3 (cs)	1996-09-11	Stabilizační směs pro sanaci a rekultivaci kalojemů a způsob výroby této směsi
PT72745A (en)	1981-04-01	Process for filling and compacting surface storage yards with waste material from power plants
YU45716B (sh)	1992-07-20	Deponovanje pepela i šljake iz termoelektrana na ugalj u vidu guste pulpe

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2004-08-31	MA	Patent expired	Owner name: AALBORG PORTLAND A/S