US20060102563A1 - Treating slurries - Google Patents
Treating slurries Download PDFInfo
- Publication number
- US20060102563A1 US20060102563A1 US10/542,432 US54243205A US2006102563A1 US 20060102563 A1 US20060102563 A1 US 20060102563A1 US 54243205 A US54243205 A US 54243205A US 2006102563 A1 US2006102563 A1 US 2006102563A1
- Authority
- US
- United States
- Prior art keywords
- slurry
- tetrakis
- hydroxymethyl
- phosphonium
- salt
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/34—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-halogen bonds; Phosphonium salts
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/20—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing acyclic or cycloaliphatic radicals
-
- 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
- C04B16/00—Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/02—Compounds of alkaline earth metals or magnesium
- C09C1/021—Calcium carbonates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/40—Compounds of aluminium
- C09C1/42—Clays
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/08—Treatment with low-molecular-weight non-polymer organic compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Abstract
This invention relates to a composition for treating inorganic slurries and to a method of treating inorganic slurries with the aforesaid composition so as to maintain the slurries in a substantially homogeneous phase. The composition comprises a THP+ salt and a dispersant selected from the group consisting of: (i) phosphonated compound containing at least one tertiary nitrogen atom; (ii) phosphonated oligomers of unsaturated acids; (iii) homopolymers of unsaturated acids; and (iv) Polyphosphates The THP+ salt is preferably THPS
Description
- This invention relates to a composition for treating inorganic slurries and to a method of treating inorganic slurries with the aforesaid composition so as to maintain the slurries in a substantially homogeneous phase.
- The present invention will be described herein with particular reference to calcium carbonate-based slurries, especially those used in paper-making processes, although it is not to be construed as being limited thereto.
- Most inorganic slurries contain about 70% to 80% by weight of solids. Many inorganic slurries (particularly those based on calcium carbonate) are known to be susceptible to bacterial contamination and it has been the practice to add one or more biocidally-active materials to the slurries in order to minimise such contamination.
- Phosphorus-containing compounds, in particular tetrakis(hydroxyorgano)phosphonium salts (THP+ salts) are known to be effective biocides. Experimental work carried out by the applicants has shown, for example, that the addition of a solution of tetrakis(hydroxymethyl)phosphonium sulphate (THPS) to a calcium carbonate-based slurry can give rise to a reduction in bacterial count of 104 in 2 hours.
- However, it is also known that addition of THPS alone to a slurry results in instantaneous heterogeneous thickening and aggregation of the slurry.
- The applicants have found that the use of a composition comprising a THP+ salt and a dispersant will provide continuing preservation against bacterial contamination, while at the same time maintaining the slurry in a substantially homogeneous phase.
- Accordingly, in a first aspect, the present invention provides a composition for treating an inorganic slurry, the composition comprising:
- (a) a tetrakis(hydroxyorgano)phosphonium salt (hereinafter THP+ salt); and
- (b) a dispersant selected from the group consisting of:
- (i) phosphonated compounds containing at least one tertiary nitrogen atom;
- (ii) phosphonated oligomers of unsaturated acids;
- (iii) homopolymers of unsaturated acids;
- and (iv) polyphosphates.
- In accordance with the present invention, the THP+ salt is preferably tetrakis(hydroxymethyl)phosphonium sulphate.
- Alternatively, the THP+ salt may be tetrakis(hydroxymethyl)phosphonium chloride, phosphate, nitrate or oxalate.
- A preferred example of a dispersant of the type (b)(i) is a compound having one tertiary nitrogen atom, such as a sodium salt of nitrilo-tris(methylene phosphate), particularly the tetra-sodium salt.
- Preferred examples of dispersants of the type (b) (ii) include those oligomers having the general H(CH2OM.CH2OM).PO3M3, wherein M is a cationic species such that the oligomer is soluble in water and n is a number greater than 1.
- Other suitable oligomers are disclosed in the applicant's European Patent Specification 0 491 391.
- A preferred example of a dispersant of the type (b)(iii) is a homopolymer of acrylic acid, especially a homopolymer having a molecular weight in the range 2000 to 5000.
- Preferred examples of dispersants of the type b(iv) include sodium tripolyphosphate.
- In a second aspect, the present invention provides a method of treating an inorganic slurry to maintain the slurry in a substantially homogeneous phase, the method comprising the addition to the slurry of an effective amount of a composition according to the first aspect of the present invention.
- The inorganic slurry may, for example, comprise a calcium carbonate-based slurry.
- Alternatively, the inorganic slurry may comprise a pigment slurry, a clay slurry or a cement slurry.
- Preferably, the ratio of THP+ salt to dispersant in the composition is about 2:1 (as active ingredients).
- Suitably, the composition may be added to the slurry in an amount in the range 10 ppm to 1000 ppm (by weight of the slurry), for example about 750 ppm (by weight of the slurry).
- The present invention will be illustrated by way of the following examples.
- In the examples, a 75% calcium carbonate slurry (commercially known as Setacarb) was treated with:
- The amounts of each additive used, and the results, are given in the TABLE below.
TABLE Example THP+ salt Dispersant No. (ppm) (ppm) Result 1 (a) THPS (b) (nil) Instant heterogeneous 750 ppm thickening 2 (a) THPS b(i) No thickening 750 ppm 375 ppm 3 (a) THPS b(ii) No thickening 750 ppm 375 ppm - Notes to TABLE
-
- (a) An aqueous solution of tetrakis(hydroxymethyl)phosphonium sulphate (75% a.i.), available as TOLCIDE®-PS75.
- (b) (i) An aqueous solution of the tetra sodium salt of nitrilo-tris(methylene phosphonic acid), available as BRIQUEST® 301-32S.
- (b)(ii) A homopolymer of polyacrylic acid, having a molecular weight in the range 2000-5000 and available as BEVALOID®211.
Claims (20)
1-19. (canceled)
20. A method for treating an inorganic slurry to maintain the slurry in a substantially homogeneous phase and to preserve the slurry against bacterial contamination, which comprises the addition to the slurry of an effective amount of a composition comprising:
(a) a tetrakis(hydroxyorgano)phosphonium salt (herein THP+ salt) selected from tetrakis(hydroxymethyl)phosphonium sulphate, tetrakis(hydroxymethyl)phosphonium chloride, tetrakis(hydroxymethyl)phosphonium phosphate, tetrakis(hydroxymethyl)phosphonium nitrate and tetrakis(hydroxymethyl)phosphonium oxalate; and
(b) a dispersant selected from the group consisting of:
(i) phosphonated compounds containing at least one tertiary nitrogen atom; and
(ii) homopolymers of unsaturated acids.
21. A method according to claim 20 , in which the THP+ salt is tetrakis(hydroxymethyl)phosphonium sulphate.
22. A method according to claim 20 , in which the THP+ salt is tetrakis(hydroxymethyl)phosphonium chloride, phosphate, nitrate or oxalate.
23. A method according to claim 20 , in which the dispersant (b(i)) is a phosphonated compound containing one tertiary nitrogen atom.
24. A method according to claim 4, in which the dispersant (b(i)) is a sodium salt of nitrilo-tris(methylene phosphonate).
25. A method according to claim 5, in which the salt is the tetra-sodium salt.
26. A method according to claim 20 , in which the dispersant (b(ii)) is a homopolymer of acrylic acid.
27. A method according to claim 26 , in which the homopolymer has a molecular weight in the range 2000 to 5000.
28. A method according to claim 20 , in which the ratio of THP+ salt to dispersant in the composition is about 2:1 (as active ingredients).
29. A method according to claim 20 , in which the composition is added to the slurry in an amount in the range 10 ppm to 1000 ppm (by weight of the slurry).
30. A method according to claim 20 , in which the composition is added to the slurry in an amount of about 750 ppm (by weight of the slurry).
31. A method, according to claim 20 , in which the slurry comprises a calcium carbonate-based slurry.
32. A method according to claim 20 , in which the slurry comprises a pigment slurry, a clay slurry or a cement slurry.
33. A composition for treating an inorganic slurry, the composition comprising:
(a) tetrakis(hydroxyorgano)phosphonium salt (herein THP+ salt) selected from tetrakis(hydroxymethyl)phosphonium sulphate, tetrakis(hydroxymethyl)phosphonium chloride, tetrakis(hydroxymethyl)phosphonium phosphate, tetrakis(hydroxymethyl)phosphonium nitrate and tetrakis(hydroxymethyl)phosphonium oxalate; and
(b) a dispersant which is the tetra sodium salt of nitrilo-tris (methylene phosphonate).
34. A composition according to claim 33 , wherein the THP+ salt is tetrakis(hydroxymethyl)phosphonium sulphate.
35. A method of treating an inorganic slurry to maintain the slurry in a substantially homogeneous phase and to preserve the slurry against bacterial contamination, comprising the addition to the slurry of an effective amount of a composition according to claim 33 .
36. A composition for treating an inorganic slurry, the composition comprising:
(a) a tetrakis(hydroxymethyl)phosphonium salt (herein THP+ salt) selected from tetrakis(hydroxymethyl)phosphonium sulphate, tetrakis (hydroxymethyl)phosphonium chloride, tetrakis(hydroxymethyl)phosphonium phosphate, tetrakis(hydroxymethyl)phosphonium nitrate and tetrakis(hydroxymethyl)phosphonium oxalate; and
(b) a dispersant which is a homopolymer of acrylic acid, the homopolymer having a molecular weight in the range of 2,000 to 5,000.
37. A composition according to claim 36 , wherein the THP+ salt is tetrakis(hydroxymethyl)phosphonium sulphate.
38. A method of treating an inorganic slurry to maintain the slurry in a substantially homogeneous phase and to preserve the slurry against bacterial contamination, comprising the addition to the slurry of an effective amount of a composition according to claim 36.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/586,012 US20120309718A1 (en) | 2003-01-29 | 2012-08-15 | Methods for treating an inorganic slurry |
US13/856,058 US8772356B2 (en) | 2003-01-29 | 2013-04-03 | Methods for treating an inorganic slurry |
US14/285,973 US20140256686A1 (en) | 2003-01-29 | 2014-05-23 | Composition for treating an inorganic slurry |
US15/412,800 US20170127681A1 (en) | 2003-01-29 | 2017-01-23 | Composition for treating an inorganic slurry |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0301975A GB0301975D0 (en) | 2003-01-29 | 2003-01-29 | Treating slurries |
GB03019759 | 2003-01-29 | ||
PCT/GB2004/000056 WO2004066731A1 (en) | 2003-01-29 | 2004-01-12 | Treating slurries |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2004/000056 A-371-Of-International WO2004066731A1 (en) | 2003-01-29 | 2004-01-12 | Treating slurries |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/586,012 Continuation US20120309718A1 (en) | 2003-01-29 | 2012-08-15 | Methods for treating an inorganic slurry |
Publications (1)
Publication Number | Publication Date |
---|---|
US20060102563A1 true US20060102563A1 (en) | 2006-05-18 |
Family
ID=9951976
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/542,432 Abandoned US20060102563A1 (en) | 2003-01-29 | 2004-01-12 | Treating slurries |
US13/586,012 Abandoned US20120309718A1 (en) | 2003-01-29 | 2012-08-15 | Methods for treating an inorganic slurry |
US13/856,058 Expired - Fee Related US8772356B2 (en) | 2003-01-29 | 2013-04-03 | Methods for treating an inorganic slurry |
US14/285,973 Abandoned US20140256686A1 (en) | 2003-01-29 | 2014-05-23 | Composition for treating an inorganic slurry |
US15/412,800 Abandoned US20170127681A1 (en) | 2003-01-29 | 2017-01-23 | Composition for treating an inorganic slurry |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/586,012 Abandoned US20120309718A1 (en) | 2003-01-29 | 2012-08-15 | Methods for treating an inorganic slurry |
US13/856,058 Expired - Fee Related US8772356B2 (en) | 2003-01-29 | 2013-04-03 | Methods for treating an inorganic slurry |
US14/285,973 Abandoned US20140256686A1 (en) | 2003-01-29 | 2014-05-23 | Composition for treating an inorganic slurry |
US15/412,800 Abandoned US20170127681A1 (en) | 2003-01-29 | 2017-01-23 | Composition for treating an inorganic slurry |
Country Status (14)
Country | Link |
---|---|
US (5) | US20060102563A1 (en) |
EP (1) | EP1592303B1 (en) |
JP (1) | JP4568269B2 (en) |
KR (1) | KR101076579B1 (en) |
CN (2) | CN101851439B (en) |
AT (1) | ATE430476T1 (en) |
CA (1) | CA2514400C (en) |
DE (1) | DE602004020971D1 (en) |
DK (1) | DK1592303T3 (en) |
ES (1) | ES2324711T3 (en) |
GB (1) | GB0301975D0 (en) |
TW (1) | TWI334855B (en) |
WO (1) | WO2004066731A1 (en) |
ZA (1) | ZA200505601B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7838854B2 (en) | 2005-02-25 | 2010-11-23 | Cymer, Inc. | Method and apparatus for EUV plasma source target delivery |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PT2377900E (en) * | 2010-04-16 | 2013-11-07 | Omya Int Ag | Process to prepare surface-modified mineral material, resulting products and uses thereof |
WO2012122708A1 (en) * | 2011-03-16 | 2012-09-20 | Rhodia (China) Co., Ltd. | Method for biological treatment of sewage |
WO2018183637A1 (en) * | 2017-03-31 | 2018-10-04 | Dow Global Technologies Llc | Microbicidal composition |
CN111848015A (en) * | 2020-07-21 | 2020-10-30 | 蚌埠龙淮建筑科技有限公司 | Method for preparing foaming wall material by using municipal sludge |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2877848A (en) * | 1956-06-11 | 1959-03-17 | Gulf Oil Corp | Process for cleaning permeable formations |
US3336221A (en) * | 1964-11-05 | 1967-08-15 | Calgon Corp | Method of inhibiting precipitation and scale formation |
US3597251A (en) * | 1968-11-19 | 1971-08-03 | Wyandotte Chemical Corp | Calcium carbonate product |
US3832302A (en) * | 1972-01-17 | 1974-08-27 | Halliburton Co | Methods for inhibiting scale formation |
US3945843A (en) * | 1974-07-22 | 1976-03-23 | Nalco Chemical Company | Acrylic acid copolymer as pigment dispersant |
US4673509A (en) * | 1983-08-26 | 1987-06-16 | Albright & Wilson Limited | Biocidal water treatment |
US4874526A (en) * | 1981-05-30 | 1989-10-17 | Ciba-Geigy Corporation | Treatment of water |
US5386038A (en) * | 1990-12-18 | 1995-01-31 | Albright & Wilson Limited | Water treatment agent |
US5741757A (en) * | 1985-08-06 | 1998-04-21 | Albright & Wilson Limited | Biocidal mixture of tetrakis (hydroxymethyl) phosphonium salt and a surfactant |
US6180056B1 (en) * | 1998-12-10 | 2001-01-30 | Buckman Laboratories International Inc. | Method and compositions for minimizing biological and colloidal fouling |
US6315867B1 (en) * | 1996-11-02 | 2001-11-13 | Imerys Minerals Limited | Dispersing agents and their use |
US6402824B1 (en) * | 2000-05-26 | 2002-06-11 | J. M. Huber Corporation | Processes for preparing precipitated calcium carbonate compositions and the products thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9105481A (en) * | 1990-12-18 | 1992-09-01 | Albright & Wilson | WATER TREATMENT AGENT |
KR970706850A (en) | 1994-11-04 | 1997-12-01 | 리키 알렉산더 디 | Synergistic biocidal combinations < RTI ID = 0.0 > |
DE69808968T2 (en) * | 1997-12-23 | 2003-09-11 | Rhodia Cons Spec Ltd | BIOCIDAL COMPOSITIONS AND TREATMENTS |
CN1313728A (en) * | 1998-07-22 | 2001-09-19 | 卡尔贡公司 | Co-antimicroorgan composition of peroxide acetic acid and phosphorous compounds |
GB0017675D0 (en) | 2000-07-20 | 2000-09-06 | Rhodia Cons Spec Ltd | Treatment of iron sulphide deposits |
-
2003
- 2003-01-29 GB GB0301975A patent/GB0301975D0/en not_active Ceased
-
2004
- 2004-01-12 DE DE200460020971 patent/DE602004020971D1/en not_active Expired - Lifetime
- 2004-01-12 WO PCT/GB2004/000056 patent/WO2004066731A1/en active Search and Examination
- 2004-01-12 CN CN201010179516.9A patent/CN101851439B/en not_active Expired - Fee Related
- 2004-01-12 AT AT04701396T patent/ATE430476T1/en active
- 2004-01-12 JP JP2006502183A patent/JP4568269B2/en not_active Expired - Fee Related
- 2004-01-12 ES ES04701396T patent/ES2324711T3/en not_active Expired - Lifetime
- 2004-01-12 DK DK04701396T patent/DK1592303T3/en active
- 2004-01-12 CA CA 2514400 patent/CA2514400C/en not_active Expired - Fee Related
- 2004-01-12 CN CN2004800031771A patent/CN1744820B/en not_active Expired - Fee Related
- 2004-01-12 US US10/542,432 patent/US20060102563A1/en not_active Abandoned
- 2004-01-12 EP EP20040701396 patent/EP1592303B1/en not_active Expired - Lifetime
- 2004-01-12 KR KR1020057013366A patent/KR101076579B1/en not_active IP Right Cessation
- 2004-01-16 TW TW93101227A patent/TWI334855B/en not_active IP Right Cessation
-
2005
- 2005-07-12 ZA ZA200505601A patent/ZA200505601B/en unknown
-
2012
- 2012-08-15 US US13/586,012 patent/US20120309718A1/en not_active Abandoned
-
2013
- 2013-04-03 US US13/856,058 patent/US8772356B2/en not_active Expired - Fee Related
-
2014
- 2014-05-23 US US14/285,973 patent/US20140256686A1/en not_active Abandoned
-
2017
- 2017-01-23 US US15/412,800 patent/US20170127681A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2877848A (en) * | 1956-06-11 | 1959-03-17 | Gulf Oil Corp | Process for cleaning permeable formations |
US3336221A (en) * | 1964-11-05 | 1967-08-15 | Calgon Corp | Method of inhibiting precipitation and scale formation |
US3597251A (en) * | 1968-11-19 | 1971-08-03 | Wyandotte Chemical Corp | Calcium carbonate product |
US3832302A (en) * | 1972-01-17 | 1974-08-27 | Halliburton Co | Methods for inhibiting scale formation |
US3945843A (en) * | 1974-07-22 | 1976-03-23 | Nalco Chemical Company | Acrylic acid copolymer as pigment dispersant |
US4874526A (en) * | 1981-05-30 | 1989-10-17 | Ciba-Geigy Corporation | Treatment of water |
US4673509A (en) * | 1983-08-26 | 1987-06-16 | Albright & Wilson Limited | Biocidal water treatment |
US5741757A (en) * | 1985-08-06 | 1998-04-21 | Albright & Wilson Limited | Biocidal mixture of tetrakis (hydroxymethyl) phosphonium salt and a surfactant |
US5386038A (en) * | 1990-12-18 | 1995-01-31 | Albright & Wilson Limited | Water treatment agent |
US5606105A (en) * | 1990-12-18 | 1997-02-25 | Albright & Wilson Limited | Water treatment agent |
US6315867B1 (en) * | 1996-11-02 | 2001-11-13 | Imerys Minerals Limited | Dispersing agents and their use |
US6180056B1 (en) * | 1998-12-10 | 2001-01-30 | Buckman Laboratories International Inc. | Method and compositions for minimizing biological and colloidal fouling |
US6402824B1 (en) * | 2000-05-26 | 2002-06-11 | J. M. Huber Corporation | Processes for preparing precipitated calcium carbonate compositions and the products thereof |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7838854B2 (en) | 2005-02-25 | 2010-11-23 | Cymer, Inc. | Method and apparatus for EUV plasma source target delivery |
Also Published As
Publication number | Publication date |
---|---|
JP4568269B2 (en) | 2010-10-27 |
ATE430476T1 (en) | 2009-05-15 |
US8772356B2 (en) | 2014-07-08 |
TWI334855B (en) | 2010-12-21 |
US20140256686A1 (en) | 2014-09-11 |
DE602004020971D1 (en) | 2009-06-18 |
GB0301975D0 (en) | 2003-02-26 |
TW200427637A (en) | 2004-12-16 |
KR20050114610A (en) | 2005-12-06 |
DK1592303T3 (en) | 2009-08-17 |
WO2004066731A1 (en) | 2004-08-12 |
ES2324711T3 (en) | 2009-08-13 |
US20130225534A1 (en) | 2013-08-29 |
JP2006521194A (en) | 2006-09-21 |
CA2514400C (en) | 2012-11-06 |
EP1592303B1 (en) | 2009-05-06 |
CN101851439A (en) | 2010-10-06 |
EP1592303A1 (en) | 2005-11-09 |
KR101076579B1 (en) | 2011-10-24 |
US20120309718A1 (en) | 2012-12-06 |
CN1744820A (en) | 2006-03-08 |
CN101851439B (en) | 2015-08-19 |
ZA200505601B (en) | 2006-04-26 |
US20170127681A1 (en) | 2017-05-11 |
CA2514400A1 (en) | 2004-08-12 |
CN1744820B (en) | 2011-10-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20170127681A1 (en) | Composition for treating an inorganic slurry | |
KR100816320B1 (en) | Synergistic biocidal compositions comprising a thp salt | |
EP0541318B1 (en) | Cooling water treatment composition and method | |
US5741757A (en) | Biocidal mixture of tetrakis (hydroxymethyl) phosphonium salt and a surfactant | |
US4105581A (en) | Corrosion inhibitor | |
US5565106A (en) | Stabilization of polyether polyamino methylene phosphonate scale inhibitors against degradation by bromine and chlorine biocides | |
US7252706B2 (en) | Inhibition of calcium and magnesium precipitation from wood preservatives | |
EP0628518A1 (en) | Process of inhibition oxalate scale formation | |
US5593595A (en) | Method for controlling scale using a synergistic phosphonate combination | |
US5709814A (en) | Aqueous system containing a synergistic phosphonate scale control combination | |
CZ290697A3 (en) | Preparation preventing formation of inorganic coatings in a water system | |
CA2124599C (en) | Process of inhibition oxalate scale formation | |
EP0767145A1 (en) | Use of a synergistic composition for scale control | |
KR20230107434A (en) | Multifunctional wood preservative composition and wood preservation treatment method using the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: RHODIA CONSUMER SPECIALTIES LIMITED, GREAT BRITAIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:JONES, CHRISTOPHER RAYMOND;REEL/FRAME:017291/0309 Effective date: 20050909 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |