CA952424A - Separation by crystallization in presence of water - Google Patents
Separation by crystallization in presence of waterInfo
- Publication number
- CA952424A CA952424A CA127,827A CA127827A CA952424A CA 952424 A CA952424 A CA 952424A CA 127827 A CA127827 A CA 127827A CA 952424 A CA952424 A CA 952424A
- Authority
- CA
- Canada
- Prior art keywords
- crystallization
- separation
- water
- 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
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/07—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms
- C07C205/11—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings
- C07C205/12—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings the six-membered aromatic ring or a condensed ring system containing that ring being substituted by halogen atoms
-
- 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)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US9047670A | 1970-11-17 | 1970-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA952424A true CA952424A (en) | 1974-08-06 |
Family
ID=22222934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA127,827A Expired CA952424A (en) | 1970-11-17 | 1971-11-16 | Separation by crystallization in presence of water |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE775337A (en) |
| CA (1) | CA952424A (en) |
| DE (1) | DE2156880A1 (en) |
| FR (1) | FR2114772A5 (en) |
| GB (1) | GB1319870A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TR23271A (en) * | 1987-02-06 | 1989-08-09 | Krupp Koppers Gmbh | PROCEDURE FOR THE GAIN OF P-KSILOL AT THE MINIMUM OF 95.5% PURITY |
| DE58902934D1 (en) * | 1988-05-05 | 1993-01-21 | Krupp Koppers Gmbh | METHOD FOR OBTAINING P-XYLOL WITH A PURITY OF AT LEAST 99.5%. |
| CN113845506B (en) | 2021-10-18 | 2022-09-23 | 惠州市宙邦化工有限公司 | Dynamic crystallization purification method of ethylene carbonate |
-
1971
- 1971-11-16 GB GB5312971A patent/GB1319870A/en not_active Expired
- 1971-11-16 BE BE775337A patent/BE775337A/en unknown
- 1971-11-16 FR FR7141031A patent/FR2114772A5/fr not_active Expired
- 1971-11-16 CA CA127,827A patent/CA952424A/en not_active Expired
- 1971-11-16 DE DE19712156880 patent/DE2156880A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2156880A1 (en) | 1972-05-25 |
| FR2114772A5 (en) | 1972-06-30 |
| GB1319870A (en) | 1973-06-13 |
| BE775337A (en) | 1972-05-16 |
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