CA1096295A - Procede de cristallisation en continu - Google Patents

Procede de cristallisation en continu

Info

Publication number: CA1096295A
Authority: CA; Canada
Prior art keywords: stage; stream; suspension; crystals; partially
Prior art date: 1976-05-28
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

CA291,483A

Other languages

English (en)

Inventor

Tore B. Muller

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.)

Institutt for Energiteknikk IFE

Original Assignee

Institutt for Energiteknikk IFE

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.)

1976-05-28

Filing date

1977-11-22

Publication date

1981-02-24

1977-11-22 Application filed by Institutt for Energiteknikk IFE filed Critical Institutt for Energiteknikk IFE

1977-11-22 Priority to CA291,483A priority Critical patent/CA1096295A/fr

1981-02-24 Application granted granted Critical

1981-02-24 Publication of CA1096295A publication Critical patent/CA1096295A/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 34
230000008569 process Effects 0.000 title claims abstract description 34
238000002425 crystallisation Methods 0.000 title claims abstract description 21
230000008025 crystallization Effects 0.000 title claims abstract description 21
239000013078 crystal Substances 0.000 claims abstract description 104
239000000725 suspension Substances 0.000 claims abstract description 55
238000000926 separation method Methods 0.000 claims abstract description 9
239000000463 material Substances 0.000 claims abstract description 4
239000007788 liquid Substances 0.000 claims description 21
238000009826 distribution Methods 0.000 claims description 17
239000000243 solution Substances 0.000 claims description 12
239000002245 particle Substances 0.000 claims description 6
230000006872 improvement Effects 0.000 abstract description 2
239000000047 product Substances 0.000 description 50
238000001556 precipitation Methods 0.000 description 10
238000001816 cooling Methods 0.000 description 9
PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 8
238000004364 calculation method Methods 0.000 description 5
WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 4
229910021502 aluminium hydroxide Inorganic materials 0.000 description 4
238000004519 manufacturing process Methods 0.000 description 4
230000009467 reduction Effects 0.000 description 3
238000006722 reduction reaction Methods 0.000 description 3
238000004131 Bayer process Methods 0.000 description 2
230000002844 continuous effect Effects 0.000 description 2
238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 2
230000000694 effects Effects 0.000 description 2
238000001704 evaporation Methods 0.000 description 2
230000008020 evaporation Effects 0.000 description 2
239000000706 filtrate Substances 0.000 description 2
229910001679 gibbsite Inorganic materials 0.000 description 2
239000012716 precipitator Substances 0.000 description 2
230000001105 regulatory effect Effects 0.000 description 2
238000004062 sedimentation Methods 0.000 description 2
238000004088 simulation Methods 0.000 description 2
239000012798 spherical particle Substances 0.000 description 2
239000000126 substance Substances 0.000 description 2
230000004075 alteration Effects 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
239000004411 aluminium Substances 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
230000008859 change Effects 0.000 description 1
239000011362 coarse particle Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
235000019628 coolness Nutrition 0.000 description 1
230000003247 decreasing effect Effects 0.000 description 1
239000012527 feed solution Substances 0.000 description 1
239000010419 fine particle Substances 0.000 description 1
230000002452 interceptive effect Effects 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
238000005185 salting out Methods 0.000 description 1
150000003839 salts Chemical class 0.000 description 1
239000011343 solid material Substances 0.000 description 1

Classifications

- 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
- 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
- B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/005—Selection of auxiliary, e.g. for control of crystallisation nuclei, of crystal growth, of adherence to walls; Arrangements for introduction thereof
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/267—Separation of sediment aided by centrifugal force or centripetal force by using a cyclone

Landscapes

Chemical & Material Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

CA291,483A 1976-05-28 1977-11-22 Procede de cristallisation en continu Expired CA1096295A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA291,483A CA1096295A (fr)	1976-05-28	1977-11-22	Procede de cristallisation en continu

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NO761805A NO140226C (no)	1976-05-28	1976-05-28	Framgangsmaate for kontinuerlig krystallisasjon
CA291,483A CA1096295A (fr)	1976-05-28	1977-11-22	Procede de cristallisation en continu

Publications (1)

Publication Number	Publication Date
CA1096295A true CA1096295A (fr)	1981-02-24

Family

ID=19882924

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA291,483A Expired CA1096295A (fr)	1976-05-28	1977-11-22	Procede de cristallisation en continu

Country Status (4)

Country	Link
CA (1)	CA1096295A (fr)
DE (1)	DE2752856C2 (fr)
HU (1)	HU181401B (fr)
NO (1)	NO140226C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN107098416A (zh) *	2017-06-29	2017-08-29	合众高科（北京）环保技术股份有限公司	一种具有缓冲装置的废水处理系统及其废水处理方法
CN111498929A (zh) *	2020-04-20	2020-08-07	内蒙古久科康瑞环保科技有限公司	分级结晶系统和分级结晶方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NL8200075A (nl) *	1982-01-11	1983-08-01	Tno	Werkwijze voor het continu gedeeltelijk kristaliseren en het scheiden van een vloeibaar mengsel en een inrichting voor het uitvoeren van deze werkwijze.
JPS5966305A (ja) *	1982-10-05	1984-04-14	Tsukishima Kikai Co Ltd	向流式溶融物冷却精製法
SE500965C2 (sv) *	1993-03-31	1994-10-10	Flaekt Ab	Sätt och anordning för utvinning av kristaller ur en lösning

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1107200B (de) *	1959-06-12	1961-05-25	Wintershall Ag	Verfahren und Vorrichtung zur Gewinnung grobkoerniger Salze durch Vakuumkuehlung in mehreren Stufen

1976
- 1976-05-28 NO NO761805A patent/NO140226C/no unknown
1977
- 1977-11-18 HU HU77AO456A patent/HU181401B/hu unknown
- 1977-11-22 CA CA291,483A patent/CA1096295A/fr not_active Expired
- 1977-11-26 DE DE2752856A patent/DE2752856C2/de not_active Expired

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN107098416A (zh) *	2017-06-29	2017-08-29	合众高科（北京）环保技术股份有限公司	一种具有缓冲装置的废水处理系统及其废水处理方法
CN111498929A (zh) *	2020-04-20	2020-08-07	内蒙古久科康瑞环保科技有限公司	分级结晶系统和分级结晶方法
CN111498929B (zh) *	2020-04-20	2023-08-22	内蒙古久科康瑞环保科技有限公司	分级结晶系统和分级结晶方法

Also Published As

Publication number	Publication date
NO140226B (no)	1979-04-17
NO140226C (no)	1983-12-07
HU181401B (en)	1983-07-28
NO761805L (no)	1977-11-29
DE2752856A1 (de)	1979-05-31
DE2752856C2 (de)	1984-09-27

Legal Events

Date	Code	Title	Description
1998-02-24	MKEX	Expiry

Publication	Publication Date	Title
US4332592A (en)	1982-06-01	Process for continuous crystallization
US4294807A (en)	1981-10-13	System for removing solids from a used lime or limestone slurry scrubbing liquor in flue gas desulfurization
US7056356B2 (en)	2006-06-06	Process for producing crystals
WO2000045959A1 (fr)	2000-08-10	Classificateur à reflux
US4049773A (en)	1977-09-20	Process for precipitation of aluminum hydroxide from aluminate solution
CA1096295A (fr)	1981-02-24	Procede de cristallisation en continu
RU2203854C2 (ru)	2003-05-10	Способ обогащения необработанной соли
US3774759A (en)	1973-11-27	Separation of particulate solids of varying densities in a fluidized bed
US3607104A (en)	1971-09-21	Apparatus for intensified contacting of plural fluids
US4174382A (en)	1979-11-13	Process for the production of coarse K2 SO4 in crystallizers and classifiers
EP1124759B1 (fr)	2002-12-18	Procede et appareil destines a precipiter et a classifier des solides dans des concentrations elevees
US5215672A (en)	1993-06-01	Purification of FGD gypsum product
CS200474B2 (en)	1980-09-15	Method of transfer of the substance between heterogenous systems and device for executing the same
US3607113A (en)	1971-09-21	Continuous precipitation of alumina hydrate
HU184225B (en)	1984-07-30	Process for precipitating aluminium-hydroxide from supersaturated aluminate liquor
WO2014044593A1 (fr)	2014-03-27	Procédé de préparation de produit sulfate d'ammonium cristallin
US4301001A (en)	1981-11-17	Process for concentrating mica in a mixture of sand and mica
US5034196A (en)	1991-07-23	Particle fractionator employing multiple fluidized bed modules
GB1589012A (en)	1981-05-07	Processes for continuous crystallization
US5075001A (en)	1991-12-24	Method and apparatus for recovering fibrous material from a paper/pulp process water stream
GB2050201A (en)	1981-01-07	Process for concentrating mica
US5158577A (en)	1992-10-27	Process for precipitating alumina from Bayer process liquor
JPH0411959A (ja)	1992-01-16	湿式分級装置
US2436745A (en)	1948-02-24	Precipitation of basic calcium hypochlorite
US3647398A (en)	1972-03-07	Process for removing gangue from sulfur-bearing materials