GB1433123A – Process for inhibiting scale
– Google Patents
GB1433123A – Process for inhibiting scale
– Google Patents
Process for inhibiting scale
Info
Publication number
GB1433123A
GB1433123A
GB2097172A
GB2097172A
GB1433123A
GB 1433123 A
GB1433123 A
GB 1433123A
GB 2097172 A
GB2097172 A
GB 2097172A
GB 2097172 A
GB2097172 A
GB 2097172A
GB 1433123 A
GB1433123 A
GB 1433123A
Authority
GB
United Kingdom
Prior art keywords
group
naphth
groups
optionally
caso
Prior art date
1972-05-05
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.)
Expired
Application number
GB2097172A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fisons Ltd
Original Assignee
Fisons Ltd
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.)
1972-05-05
Filing date
1972-05-05
Publication date
1976-04-22
1972-05-05
Application filed by Fisons Ltd
filed
Critical
Fisons Ltd
1972-05-05
Priority to GB2097172A
priority
Critical
patent/GB1433123A/en
1976-04-22
Publication of GB1433123A
publication
Critical
patent/GB1433123A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B25/00—Phosphorus; Compounds thereof
C01B25/16—Oxyacids of phosphorus; Salts thereof
C01B25/18—Phosphoric acid
C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
C01B25/2235—Anhydrite processes
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
C01B25/00—Phosphorus; Compounds thereof
C01B25/16—Oxyacids of phosphorus; Salts thereof
C01B25/18—Phosphoric acid
C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
C01B25/226—Hemihydrate process
C—CHEMISTRY; METALLURGY
C01—INORGANIC CHEMISTRY
C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
C01F11/00—Compounds of calcium, strontium, or barium
C01F11/46—Sulfates
C—CHEMISTRY; METALLURGY
C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
C23F15/00—Other methods of preventing corrosion or incrustation
C23F15/005—Inhibiting incrustation
Abstract
1433123 Reducing calcium sulphate scale formation FISONS Ltd 16 April 1973 [5 May 1972 (4)] 20968/72 20969/72 20970/72 and 20971/72 Heading C1A Calcium sulphate deposition from wash liquors during washing of CaSO 4 or CaSO 4 .¢H 2 O is reduced by bringing the anhydrite or hemihydrite crystals after then havebeen formed, but before or during washing thereof, into contact with an anionic surface-active agent of the empirical general formula wherein n has a value of 0 or 1; M represents hydrogen, an alkali-metal cation or an ammonium cation; X represents a lignin group, a group R, a group COR
GB2097172A
1972-05-05
1972-05-05
Process for inhibiting scale
Expired
GB1433123A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB2097172A
GB1433123A
(en)
1972-05-05
1972-05-05
Process for inhibiting scale
Applications Claiming Priority (4)
Application Number
Priority Date
Filing Date
Title
GB2096872
1972-05-05
GB2097172A
GB1433123A
(en)
1972-05-05
1972-05-05
Process for inhibiting scale
GB2097072
1972-05-05
GB2096972
1972-05-05
Publications (1)
Publication Number
Publication Date
GB1433123A
true
GB1433123A
(en)
1976-04-22
Family
ID=27448509
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2097172A
Expired
GB1433123A
(en)
1972-05-05
1972-05-05
Process for inhibiting scale
Country Status (1)
Country
Link
GB
(1)
GB1433123A
(en)
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4842842A
(en)
*
1984-09-17
1989-06-27
Kureha Kagaku Kogyo Kabushiki Kaisha
Process for producing α-form gypsum hemihydrate
WO2011038167A1
(en)
*
2009-09-25
2011-03-31
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
WO2012128755A1
(en)
*
2011-03-22
2012-09-27
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
US8900539B2
(en)
2011-03-22
2014-12-02
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
US9028787B2
(en)
2009-09-25
2015-05-12
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
WO2015123294A1
(en)
2014-02-11
2015-08-20
Cytec Industries Inc.
Primary amine-containing polymers useful as scale inhibitors
WO2016130817A1
(en)
2015-02-11
2016-08-18
Cytec Industries Inc.
Modified amines useful as scale inhibitors in wet process phosphoric acid production
US10759662B2
(en)
2018-03-12
2020-09-01
Solenis Technologies, L.P.
Systems and methods for reducing formation of scale in phosphoric acid production
1972
1972-05-05
GB
GB2097172A
patent/GB1433123A/en
not_active
Expired
Cited By (17)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4842842A
(en)
*
1984-09-17
1989-06-27
Kureha Kagaku Kogyo Kabushiki Kaisha
Process for producing α-form gypsum hemihydrate
AP3403A
(en)
*
2009-09-25
2015-08-31
Cytec Tech Corp
Preventing or reducing scale in wet-process phosphoric acid production
WO2011038167A1
(en)
*
2009-09-25
2011-03-31
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
EA028289B1
(en)
*
2009-09-25
2017-10-31
Сайтек Текнолоджи Корп.
Preventing or reducing scale in wet-process phosphoric acid production
CN102712476A
(en)
*
2009-09-25
2012-10-03
塞特克技术公司
Preventing or reducing scale in wet-process phosphoric acid production
US9028787B2
(en)
2009-09-25
2015-05-12
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
US9242863B2
(en)
2009-09-25
2016-01-26
Cytec Technology Corp.
Process and reagents for the inhibition or reduction of scale formation during phosphoric acid production
US8900539B2
(en)
2011-03-22
2014-12-02
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
EA025200B1
(en)
*
2011-03-22
2016-11-30
Сайтек Текнолоджи Корп.
Preventing or reducing scale in wet-process phosphoric acid production
WO2012128755A1
(en)
*
2011-03-22
2012-09-27
Cytec Technology Corp.
Preventing or reducing scale in wet-process phosphoric acid production
WO2015123294A1
(en)
2014-02-11
2015-08-20
Cytec Industries Inc.
Primary amine-containing polymers useful as scale inhibitors
US9902617B2
(en)
2014-02-11
2018-02-27
Cytec Industries Inc.
Primary amine-containing polymers useful as scale inhibitors
US10214421B2
(en)
2014-02-11
2019-02-26
Cytec Industries Inc.
Primary amine-containing polymers useful as scale inhibitors
EP3623500A1
(en)
2014-02-11
2020-03-18
Cytec Industries Inc.
Primary amine-containing polymers useful as scale inhibitors
WO2016130817A1
(en)
2015-02-11
2016-08-18
Cytec Industries Inc.
Modified amines useful as scale inhibitors in wet process phosphoric acid production
US10906828B2
(en)
2015-02-11
2021-02-02
Cytec Industries Inc.
Modified amines useful as scale inhibitors in wet process phosphoric acid production
US10759662B2
(en)
2018-03-12
2020-09-01
Solenis Technologies, L.P.
Systems and methods for reducing formation of scale in phosphoric acid production
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Legal Events
Date
Code
Title
Description
1976-12-31
CSNS
Application of which complete specification have been accepted and published, but patent is not sealed
