GB923138A - Process and apparatus for crystallising solutions - Google Patents
Process and apparatus for crystallising solutionsInfo
- Publication number
- GB923138A GB923138A GB11418/61A GB1141861A GB923138A GB 923138 A GB923138 A GB 923138A GB 11418/61 A GB11418/61 A GB 11418/61A GB 1141861 A GB1141861 A GB 1141861A GB 923138 A GB923138 A GB 923138A
- Authority
- GB
- United Kingdom
- Prior art keywords
- container
- cylindrical pipe
- space
- conical
- treatment
- 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.)
- Expired
Links
Classifications
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/36—Regeneration of waste pickling liquors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0004—Crystallisation cooling by heat exchange
- B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/14—Sulfates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Removal Of Specific Substances (AREA)
- Physical Water Treatments (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
<PICT:0923138/III/1> In a process for the continuous crystallization of heptahydrate of iron sulphate from sulphuric acid pickling solutions, the liquid to be treated is introduced into a container 2 having a circular cross-section and a conical lower portion, flows downwards in said container outside a cylindrical pipe 9 disposed concentrically inside the container and separating the two treatment spaces from each other, as far as the zone of the conical container portion, and from there rises again through the treatment space disposed inside the cylindrical pipe, air being blown into the inner treatment space by means of a ring of nozzles 14 at the lower extremity of said space so as to secure a rapid upward movement. The crystals, cooled also by coils 10, collect in container 2 and via automatic pneumatic conveyer system 12 are taken off at 15.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEO7351A DE1114793B (en) | 1960-04-13 | 1960-04-13 | Process and device for the continuous crystallization of iron sulfate heptahydrate from sulfuric acid pickling solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB923138A true GB923138A (en) | 1963-04-10 |
Family
ID=7351125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11418/61A Expired GB923138A (en) | 1960-04-13 | 1961-03-28 | Process and apparatus for crystallising solutions |
Country Status (3)
Country | Link |
---|---|
US (1) | US3193361A (en) |
DE (1) | DE1114793B (en) |
GB (1) | GB923138A (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1527945A (en) * | 1967-04-05 | 1968-06-07 | Commissariat Energie Atomique | Method and device for water purification |
JPS5544644B2 (en) * | 1971-09-23 | 1980-11-13 | ||
JPS5131239B2 (en) * | 1974-09-13 | 1976-09-06 | ||
US4308236A (en) * | 1979-09-11 | 1981-12-29 | Hilda Garcia | Heat exchangers for crystallization of crystallizable suspensions while in motion |
IT1232987B (en) * | 1989-09-13 | 1992-03-13 | Tmci Padovan S P A | WINE STABILIZATION DEVICE BEFORE BOTTLING |
WO1992012392A1 (en) * | 1991-01-07 | 1992-07-23 | Comalco Aluminium Limited | Heating and/or cooling of vessels |
US5523064A (en) * | 1994-11-02 | 1996-06-04 | Swenson Process Equipment, Inc., A Delaware Corp. | Crystallization apparatus |
CA3041545C (en) | 2016-11-14 | 2023-04-18 | William H. Mitchell, Jr. | Systems and methods for separating soluble solutions |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US15119A (en) * | 1856-06-17 | Saw-set | ||
US1256068A (en) * | 1915-09-20 | 1918-02-12 | First Trust And Savings Company | Method of recovering sulfate crystals. |
US1693786A (en) * | 1924-09-17 | 1928-12-04 | Krystal As | Process for the crystallization of solid substances in a coarse granular form from solutions |
US1997277A (en) * | 1932-09-06 | 1935-04-09 | American Potash & Chem Corp | Crystallization apparatus |
US2288667A (en) * | 1938-08-15 | 1942-07-07 | American Potash & Chem Corp | Method of crystallizing substances from solution |
US2492333A (en) * | 1945-05-15 | 1949-12-27 | Swindin Norman | Apparatus for continuously purifying and concentrating acid pickling liquors |
GB623446A (en) * | 1946-06-06 | 1949-05-18 | Norman Swindin | Improvements in and relating to processes and apparatus for the regeneration of spent iron and steel acid pickle liquors |
US2470822A (en) * | 1947-08-16 | 1949-05-24 | American Potash & Chem Corp | Process for manufacturing coarse granular potassium chloride |
US2664349A (en) * | 1948-08-07 | 1953-12-29 | Electro Chimie Metal | Method of precipitating solid particles from a suspension of the particles in a liquor |
US2631926A (en) * | 1949-10-03 | 1953-03-17 | Blaw Knox Co | Apparatus for concentrating a solution and separating crystals therefrom |
US2827366A (en) * | 1954-03-04 | 1958-03-18 | Olin Mathieson | Crystallization apparatus |
US2983589A (en) * | 1956-09-24 | 1961-05-09 | Phillips Petroleum Co | Process for the purification of crystals |
US3071447A (en) * | 1958-09-09 | 1963-01-01 | Whiting Corp | Hydraulic classifier |
-
1960
- 1960-04-13 DE DEO7351A patent/DE1114793B/en active Pending
-
1961
- 1961-03-28 GB GB11418/61A patent/GB923138A/en not_active Expired
- 1961-04-07 US US101478A patent/US3193361A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3193361A (en) | 1965-07-06 |
DE1114793B (en) | 1961-10-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES394778A1 (en) | System for the liquid-phase removal of a component from the gas stream especially the absorption of sulfur trioxide in sulfuric acid | |
GB923138A (en) | Process and apparatus for crystallising solutions | |
FR1237951A (en) | Process for the separation of carbon dioxide from gas mixtures | |
FR1137173A (en) | Process for separating and recovering carbon dioxide from gas mixtures | |
GB1285588A (en) | Improvements in or relating to the purification of gaseous effluents | |
GB895740A (en) | Process and apparatus for continuously detoxicating waste liquors | |
BE796201A (en) | PROCESS FOR PREPARING A GAS CONTAINING SULFUROUS ANHYDRIDE FROM A SULFURIC ACID CONTAINING IRON (II) SULPHATE | |
GB1478429A (en) | Process for effecting mass transfer between liquids and gases | |
GB1074580A (en) | Chemical processing apparatus useful for crystallization processes | |
FR1226740A (en) | Process for separating carbon dioxide from sulfur compounds | |
BE577205A (en) | A process and apparatus for the continuous separation, by crystallation, of a water-poor iron sulphate from pickling solutions containing sulfuric acid. | |
FR1205615A (en) | Process for removing carbon dioxide from gases containing it | |
FR1180050A (en) | Process of separating microscopic particles from a liquid, especially removing bacteria from milk | |
GB823366A (en) | Improvements in or relating to the removal of hydrogen sulphide from gases | |
BE585149A (en) | Process for the rapid production of a liquid, highly reactive and very calcareous slag, using air, oxygen-enriched air, or pure oxygen, blown out during the treatment of iron baths. | |
GB592551A (en) | Improvements in a process of and means for continuously purifying and concentrating acid pickle liquors for the treatment of iron and steel | |
GB761877A (en) | Improvements in or relating to crystallizing processes and apparatus | |
FR1251280A (en) | Process for the purification of waste liquors from the beet sugar industry | |
FR1128503A (en) | Two-stage process for the removal of carbon dioxide | |
FR1163122A (en) | Process for the purification of liquids such as industrial water, vinasse, cidrasse and others and equipment allowing the implementation of such a process | |
GB565728A (en) | Improvements in or relating to the absorption of nitrogen oxides contained in gases | |
FR1213065A (en) | Process for separating and recovering carbon dioxide from gas mixtures | |
GB810926A (en) | An improved method and vessel for the treatment of a bath by the introduction of a gas | |
BE560642A (en) | PROCESS FOR OBTAINING PURE EPSILON-CAPROLACTAM FROM THE BECKMANN REACTION MIXTURE. | |
GB769403A (en) | Improvements in or relating to methods of and apparatus for contacting liquids with gases |