IL101509A - Automatic control system for phosphoric acid production plants - Google Patents
Automatic control system for phosphoric acid production plantsInfo
- Publication number
- IL101509A IL101509A IL10150992A IL10150992A IL101509A IL 101509 A IL101509 A IL 101509A IL 10150992 A IL10150992 A IL 10150992A IL 10150992 A IL10150992 A IL 10150992A IL 101509 A IL101509 A IL 101509A
- Authority
- IL
- Israel
- Prior art keywords
- reactor
- sulfuric acid
- acid
- feed rate
- rock
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title claims description 119
- 229910000147 aluminium phosphate Inorganic materials 0.000 title claims description 57
- 239000002253 acid Substances 0.000 claims description 192
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 161
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 152
- 239000011435 rock Substances 0.000 claims description 149
- 238000000034 method Methods 0.000 claims description 41
- 238000005070 sampling Methods 0.000 claims description 34
- 239000002367 phosphate rock Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 239000000126 substance Substances 0.000 claims description 21
- 230000008859 change Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 11
- LEHOTFFKMJEONL-UHFFFAOYSA-N Uric Acid Chemical compound N1C(=O)NC(=O)C2=C1NC(=O)N2 LEHOTFFKMJEONL-UHFFFAOYSA-N 0.000 claims 2
- TVWHNULVHGKJHS-UHFFFAOYSA-N Uric acid Natural products N1C(=O)NC(=O)C2NC(=O)NC21 TVWHNULVHGKJHS-UHFFFAOYSA-N 0.000 claims 2
- 229940116269 uric acid Drugs 0.000 claims 2
- 235000011007 phosphoric acid Nutrition 0.000 description 52
- 238000004364 calculation method Methods 0.000 description 30
- 238000005259 measurement Methods 0.000 description 17
- 230000006870 function Effects 0.000 description 15
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 14
- 230000003247 decreasing effect Effects 0.000 description 14
- 230000008569 process Effects 0.000 description 14
- 239000002002 slurry Substances 0.000 description 11
- 230000007423 decrease Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000010440 gypsum Substances 0.000 description 9
- 229910052602 gypsum Inorganic materials 0.000 description 9
- 235000011149 sulphuric acid Nutrition 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 229910019142 PO4 Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 6
- 229910052791 calcium Inorganic materials 0.000 description 6
- 239000011575 calcium Substances 0.000 description 6
- 230000010354 integration Effects 0.000 description 6
- 239000010452 phosphate Substances 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003070 Statistical process control Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002288 cocrystallisation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013479 data entry Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000013461 intermediate chemical Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 235000019731 tricalcium phosphate Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0033—Optimalisation processes, i.e. processes with adaptive control systems
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Feedback Control In General (AREA)
- Control Of Non-Electrical Variables (AREA)
- Removal Of Specific Substances (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/723,259 US5262963A (en) | 1991-06-28 | 1991-06-28 | Automatic control system for phosphoric acid plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL101509A0 IL101509A0 (en) | 1992-12-30 |
| IL101509A true IL101509A (en) | 1996-08-04 |
Family
ID=24905509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL10150992A IL101509A (en) | 1991-06-28 | 1992-04-06 | Automatic control system for phosphoric acid production plants |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5262963A (fr) |
| IL (1) | IL101509A (fr) |
| JO (1) | JO1712B1 (fr) |
| MA (1) | MA22579A1 (fr) |
| MX (1) | MX9203435A (fr) |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5696696A (en) * | 1994-10-11 | 1997-12-09 | Betzdearborn, Inc. | Apparatus and method for automatically achieving and maintaining congruent control in an industrial boiler |
| US5923571A (en) * | 1994-10-11 | 1999-07-13 | Betzdearborn, Inc. | Apparatus and method for automatic congruent control of multiple boilers sharing a common feedwater line and chemical feed point |
| WO2001098558A2 (fr) | 2000-06-22 | 2001-12-27 | United States Filter Corporation | Protection contre la corrosion utilisant un donneur de peroxyde d'hydrogene |
| US6716359B1 (en) | 2000-08-29 | 2004-04-06 | United States Filter Corporation | Enhanced time-based proportional control |
| US6620315B2 (en) | 2001-02-09 | 2003-09-16 | United States Filter Corporation | System for optimized control of multiple oxidizer feedstreams |
| US6776926B2 (en) | 2001-08-09 | 2004-08-17 | United States Filter Corporation | Calcium hypochlorite of reduced reactivity |
| US7108781B2 (en) | 2002-02-26 | 2006-09-19 | Usfilter Corporation | Enhanced air and water purification using continuous breakpoint halogenation with free oxygen radicals |
| US6991735B2 (en) | 2002-02-26 | 2006-01-31 | Usfilter Corporation | Free radical generator and method |
| US7099679B2 (en) * | 2002-07-18 | 2006-08-29 | Intel Corporation | Method of saving power by reducing active reception time in standby mode |
| 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 |
| US12103874B2 (en) | 2006-06-06 | 2024-10-01 | Evoqua Water Technologies Llc | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water |
| US10343939B2 (en) | 2006-06-06 | 2019-07-09 | Evoqua Water Technologies Llc | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water |
| WO2007146671A2 (fr) | 2006-06-06 | 2007-12-21 | Fluid Lines | Procédé d'oxydation activé par la lumière ultaviolette destiné à la réduction de carbone organique dans l'eau de traitement de semiconducteurs |
| US9365436B2 (en) * | 2007-04-03 | 2016-06-14 | Evoqua Water Technologies Llc | Method of irradiating a liquid |
| US9365435B2 (en) * | 2007-04-03 | 2016-06-14 | Evoqua Water Technologies Llc | Actinic radiation reactor |
| US8753522B2 (en) * | 2007-04-03 | 2014-06-17 | Evoqua Water Technologies Llc | System for controlling introduction of a reducing agent to a liquid stream |
| US8961798B2 (en) * | 2007-04-03 | 2015-02-24 | Evoqua Water Technologies Llc | Method for measuring a concentration of a compound in a liquid stream |
| US9725343B2 (en) | 2007-04-03 | 2017-08-08 | Evoqua Water Technologies Llc | System and method for measuring and treating a liquid stream |
| US8741155B2 (en) * | 2007-04-03 | 2014-06-03 | Evoqua Water Technologies Llc | Method and system for providing ultrapure water |
| WO2009021216A2 (fr) * | 2007-08-08 | 2009-02-12 | Bountiful Applied Research Corp. | Procédé de déshydratation de la lignine |
| US8591730B2 (en) * | 2009-07-30 | 2013-11-26 | Siemens Pte. Ltd. | Baffle plates for an ultraviolet reactor |
| EP2527301B1 (fr) | 2011-05-26 | 2016-04-27 | Evoqua Water Technologies GmbH | Procédé et dispositif pour le traîtement de l'eau |
| CN104460731A (zh) * | 2014-12-26 | 2015-03-25 | 苏州莱测检测科技有限公司 | 一种ph测控装置 |
| US11161762B2 (en) | 2015-01-21 | 2021-11-02 | Evoqua Water Technologies Llc | Advanced oxidation process for ex-situ groundwater remediation |
| US10494281B2 (en) | 2015-01-21 | 2019-12-03 | Evoqua Water Technologies Llc | Advanced oxidation process for ex-situ groundwater remediation |
| FI126505B (en) * | 2015-07-08 | 2017-01-13 | Upm Kymmene Corp | Method and system for reducing residual sludge in crude tall oil |
| US9970869B2 (en) * | 2015-07-24 | 2018-05-15 | Chevron Phillips Chemical Company Lp | Use of turbidimeter for measurement of solid catalyst system component in a reactor feed |
| CN110872106A (zh) * | 2018-08-31 | 2020-03-10 | 贵州芭田生态工程有限公司 | 一种各环节处理速度均衡的磷矿制备系统 |
| EP4603226A3 (fr) | 2019-11-27 | 2025-10-22 | Diversified Fluid Solutions, LLC | Mélange en ligne et fourniture de produits chimiques à la demande |
| CN118458715A (zh) * | 2024-04-02 | 2024-08-09 | 贵州开磷集团股份有限公司 | 一种湿法磷酸的磷酸萃取预分解方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3086849A (en) * | 1951-12-20 | 1963-04-23 | Lubrizol Corp | Apparatus for carrying out chemical process |
| US3104946A (en) * | 1959-12-28 | 1963-09-24 | Phillips Petroleum Co | Manufacture of wet process phosphoric acid |
| US3130187A (en) * | 1960-07-11 | 1964-04-21 | Phillips Petroleum Co | Automatic process control method and apparatus |
| US3309507A (en) * | 1963-01-17 | 1967-03-14 | North American Aviation Inc | Optimal controller computer |
| GB1182786A (en) * | 1966-11-18 | 1970-03-04 | Ici Ltd | Control or Alarm Method and Apparatus. |
| SU597632A1 (ru) * | 1974-12-19 | 1978-03-15 | Московское Пуско-Наладочное Управление, Специализированное | Способ автоматического регулировани процесса подготовки разбавленной серной кислоты |
| DE2652766A1 (de) * | 1976-03-09 | 1977-09-22 | Robert Dr Michel | Verfahren zur herstellung von phosphorsaeure aus phosphatgestein |
| US4188366A (en) * | 1977-11-18 | 1980-02-12 | Societe De Prayon | Manufacture of phosphoric acid |
| GB2059277B (en) * | 1979-09-25 | 1983-02-16 | Coal Industry Patents Ltd | Controlling the treatment of mixtures comprising solid and liquid |
| US4402923A (en) * | 1980-10-20 | 1983-09-06 | Davy Mckee Corporation | Process for making phosphoric acid |
| US4332590A (en) * | 1981-02-20 | 1982-06-01 | Phillips Petroleum Company | Reactor control |
| US4485078A (en) * | 1982-03-16 | 1984-11-27 | Agrico Chemical Company | Process for producing wet process phosphoric acid from phosphate rocks containing fluochlorapatite and related minerals |
| US4543637A (en) * | 1982-07-16 | 1985-09-24 | Phillips Petroleum Company | Generation of a set point for process control |
| SU1112025A1 (ru) * | 1982-12-28 | 1984-09-07 | Государственный Всесоюзный Центральный Ордена Трудового Красного Знамени Научно-Исследовательский Институт Комплексной Автоматизации | Способ управлени процессом нейтрализации экстракционной фосфорной кислоты газообразным аммиаком в реакторе |
| US4616308A (en) * | 1983-11-15 | 1986-10-07 | Shell Oil Company | Dynamic process control |
| US4501724A (en) * | 1984-02-01 | 1985-02-26 | Goers Associates Inc. | Method for the wet process manufacture of phosphoric acid |
| EP0181029B1 (fr) * | 1984-11-05 | 1991-06-12 | Prayon Développement Société anonyme | Procédé continu de préparation d'acide phosphorique et de sulfate de calcium |
| SU1411276A1 (ru) * | 1985-10-17 | 1988-07-23 | Предприятие П/Я А-1846 | Способ автоматического управлени производством экстракционной фосфорной кислоты |
| SU1511248A1 (ru) * | 1987-12-01 | 1989-09-30 | Государственный всесоюзный центральный научно-исследовательский институт комплексной автоматизации | Способ управлени производством аммофоса |
-
1991
- 1991-06-28 US US07/723,259 patent/US5262963A/en not_active Expired - Lifetime
-
1992
- 1992-04-06 IL IL10150992A patent/IL101509A/en not_active IP Right Cessation
- 1992-06-26 MX MX9203435A patent/MX9203435A/es active IP Right Grant
- 1992-06-26 MA MA22858A patent/MA22579A1/fr unknown
- 1992-06-28 JO JO19921712A patent/JO1712B1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| MX9203435A (es) | 1993-08-01 |
| US5262963A (en) | 1993-11-16 |
| JO1712B1 (en) | 1992-12-15 |
| MA22579A1 (fr) | 1993-04-01 |
| IL101509A0 (en) | 1992-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Patent granted | ||
| KB | Patent renewed | ||
| RH | Patent void |