Systems and methods for unipolar separation of emulsions and other mixtures
US-9975064-B2 · May 22, 2018 · US
Methods for the separation of at least one emulsion by applying an electrical field and device for carrying out said method
US10918972B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10918972-B2 |
| Application number | US-201716073394-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 27, 2017 |
| Priority date | Jan 29, 2016 |
| Publication date | Feb 16, 2021 |
| Grant date | Feb 16, 2021 |
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Abstract
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Disclosed is a method for the break-up of at least one emulsion and separation of the light and heavy phase with at least an de-emulsification rate of more than 9% in only one apparatus within less than 5 min by applying at least one time dependent electrical field. The electrical field is a high frequency singular alternating current field with an electrical field strength between 2,000 and 100,000 V/m and a frequency between 12,000 Hz and 200,000 Hz. The present invention relates furthermore to a method for the treatment of at least one emulsion by applying at least one direct current field and at least one high frequency alternating current field.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for the separation of at least one liquid/liquid (L/L) emulsion with a water content of up to 70 mass % comprising applying at least one time dependent electrical field, wherein the at least one electrical field is a singular alternating current (AC) field with an electrical field strength between 2,000 and 100,000 V/m and a frequency (HF) between >10,000 Hz and 200,000 Hz, and wherein separation of the at least one L/L emulsion performed with a de-emulsification rate of at least 95% is achieved in less than 5 minutes. 2. The method according to claim 1 , wherein the at least one AC-field is applied with an electrical field strength between 4,000 and 70,000 V/m. 3. The method according to claim 1 , wherein the at least one AC-field is applied with a frequency between 12,000 and 150,000 Hz. 4. The method according to claim 1 , wherein the emulsion to be separated is a phenolic water emulsion of the Hock-synthesis with an equimolar Phenol/Acetone-ratio and water contents up to 70 wt. %. 5. The method according to claim 1 , wherein the at least one AC-field is applied with an electrical field strength between 30,000 and 50,000 V/m and a frequency between 16,000 and 40,000 Hz. 6. The method according to claim 1 , wherein separation of the at least one L/L emulsion performed with a de-emulsification rate of at least 95% is achieved in less than 3 minutes. 7. The method according to claim 1 , wherein separation of the at least one L/L emulsion performed with a de-emulsification rate of at least 95% is achieved in less than 2 minutes.
Assignees
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Classifications
Separation by high-voltage electrical fields, not provided for in other groups of this subclass · CPC title
Electrostatic separation of liquids from liquids · CPC title
- B01D17/06Primary
Separation of liquids from each other by electricity · CPC title
with electrical or magnetic means · CPC title
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- What does patent US10918972B2 cover?
- Disclosed is a method for the break-up of at least one emulsion and separation of the light and heavy phase with at least an de-emulsification rate of more than 9% in only one apparatus within less than 5 min by applying at least one time dependent electrical field. The electrical field is a high frequency singular alternating current field with an electrical field strength between 2,000 and 10…
- Who is the assignee on this patent?
- Borealis Ag
- What technology area does this patent fall under?
- Primary CPC classification B01D17/06. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 16 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).