ES355394A1 - Process for Selective Crystallization by Direct Thermal Exchange - Google Patents
Process for Selective Crystallization by Direct Thermal ExchangeInfo
- Publication number
- ES355394A1 ES355394A1 ES355394A ES355394A ES355394A1 ES 355394 A1 ES355394 A1 ES 355394A1 ES 355394 A ES355394 A ES 355394A ES 355394 A ES355394 A ES 355394A ES 355394 A1 ES355394 A1 ES 355394A1
- Authority
- ES
- Spain
- Prior art keywords
- mixture
- direct thermal
- thermal exchange
- selective crystallization
- per cent
- 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
-
- 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
- B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Selective crystallization of a hydrocarbon from a mixture of hydrocarbons is carried out by direct thermal exchange using as cooling liquid a mixture of water, one or more mono-alcohols and one or more poly-alcohols. Particularly suitable is a mixture of 20-40 wt. per cent water, 15-50 wt. per cent methanol and 25-50 wt. per cent ethylene glycol. Countercurrent contact is preferred. Para-xylene may be crystallized from a xylene mixture optionally containing ethyl benzene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR111961 | 1967-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES355394A1 true ES355394A1 (en) | 1969-11-16 |
Family
ID=8633850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES355394A Expired ES355394A1 (en) | 1967-06-26 | 1968-06-24 | Process for Selective Crystallization by Direct Thermal Exchange |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE716932A (en) |
| DE (1) | DE1768716A1 (en) |
| ES (1) | ES355394A1 (en) |
| FR (1) | FR1568747A (en) |
| GB (1) | GB1165299A (en) |
| NL (1) | NL6808969A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758601A (en) * | 1971-11-17 | 1973-09-11 | R Wylie | Three-phase organics separation process |
-
1967
- 1967-06-26 FR FR1568747D patent/FR1568747A/fr not_active Expired
-
1968
- 1968-06-21 DE DE19681768716 patent/DE1768716A1/en active Pending
- 1968-06-21 BE BE716932D patent/BE716932A/xx unknown
- 1968-06-24 ES ES355394A patent/ES355394A1/en not_active Expired
- 1968-06-25 GB GB3023768A patent/GB1165299A/en not_active Expired
- 1968-06-26 NL NL6808969A patent/NL6808969A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1165299A (en) | 1969-09-24 |
| DE1768716A1 (en) | 1971-11-18 |
| FR1568747A (en) | 1969-05-30 |
| BE716932A (en) | 1968-12-02 |
| NL6808969A (en) | 1968-12-27 |
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