CN106744719A - A kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed - Google Patents
A kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed Download PDFInfo
- Publication number
- CN106744719A CN106744719A CN201611092649.6A CN201611092649A CN106744719A CN 106744719 A CN106744719 A CN 106744719A CN 201611092649 A CN201611092649 A CN 201611092649A CN 106744719 A CN106744719 A CN 106744719A
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- CN
- China
- Prior art keywords
- sulfuric acid
- organic phase
- reclaimed
- waste sulfuric
- waste
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/88—Concentration of sulfuric acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/92—Recovery from acid tar or the like, e.g. alkylation acids
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention belongs to chemical field, and in particular to a kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed, it is comprised the following steps：(1) Waste Sulfuric Acid is pre-processed by filtering, and removes suspended particulate substance；(2) by by pretreated Waste Sulfuric Acid, by filling the adsorption tower of resin, organic phase absorption is reclaimed organic phase on resin in making Waste Sulfuric Acid；(3) regenerated as the resin that desorbing agent will adsorb organic matter with the alkaline aqueous solution that mass concentration is 4 16%；(4) high concentration desorption liquid being desorbed, neutralisation treatment is carried out with acid again, reclaims organic phase；(5) the dilute sulfuric acid waste liquid obtained after absorption in step (2) carries out concentration, and carries out adsorption bleaching with activated carbon, can obtain the concentrated sulfuric acid of water white transparency.A kind of waste sulfuric acid from alkylation treatment that the present invention is provided and the method that organic phase is reclaimed, can effectively reclaim the organic matter in acid, and three-waste free discharge, and the POV for obtaining is recycling.
Description
Technical field
The invention belongs to chemical field, and in particular to a kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed.
Background technology
Catalyst is made frequently with sulfuric acid in alkylation process, the industrial sulfuric acid concentration for using is 86-99%, when circulation sulphur
When acid concentration is less than 86%, eo-acid need to be changed.Sulfuric acid consumption in sulfuric acid process alkylation process substantially accounts for the 5%- of alkylate oil
15%, 60,000 tons/year of alkyl plant year acid discharge amount can not be such as dealt carefully between 3000~9000 tons, and environment can be caused
Greatly harm.
The content of the invention
It is an object of the invention to provide a kind of waste sulfuric acid from alkylation treatment and organic phase reclaim method, to spent acid and its
Middle organic matter carries out effective recycling.
A kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed, it is comprised the following steps：
(1) Waste Sulfuric Acid is pre-processed by filtering, and removes suspended particulate substance；
(2) by by pretreated Waste Sulfuric Acid, by filling the adsorption tower of resin, organic phase absorption is in tree in making Waste Sulfuric Acid
On fat, organic phase is reclaimed；
(3) carried out again as the resin that desorbing agent will adsorb organic matter with the alkaline aqueous solution that mass concentration is 4-16%
It is raw；
(4) high concentration desorption liquid being desorbed, neutralisation treatment is carried out with acid again, reclaims organic phase；
(5) the dilute sulfuric acid waste liquid obtained after absorption in step (2) carries out concentration, and it is de- that absorption is carried out with activated carbon
Color, can obtain the concentrated sulfuric acid of water white transparency.
A kind of waste sulfuric acid from alkylation treatment that the present invention is provided and the method that organic phase is reclaimed, in effectively having reclaimed acid
Organic matter, and three-waste free discharge, the POV for obtaining are recycling.
Specific embodiment
A kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed, it is comprised the following steps：
(1) Waste Sulfuric Acid is pre-processed by filtering, and removes suspended particulate substance；
(2) by by pretreated Waste Sulfuric Acid, by filling the adsorption tower of resin, organic phase absorption is in tree in making Waste Sulfuric Acid
On fat, organic phase is reclaimed；
(3) carried out again as the resin that desorbing agent will adsorb organic matter with the alkaline aqueous solution that mass concentration is 4-16%
It is raw；
(4) high concentration desorption liquid being desorbed, neutralisation treatment is carried out with acid again, reclaims organic phase；
(5) the dilute sulfuric acid waste liquid obtained after absorption in step (2) carries out concentration, and it is de- that absorption is carried out with activated carbon
Color, can obtain the concentrated sulfuric acid of water white transparency.
Claims (1)
1. a kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed, it is characterised in that it is comprised the following steps：
(1) Waste Sulfuric Acid is pre-processed by filtering, and removes suspended particulate substance；
(2) by by pretreated Waste Sulfuric Acid by filling the adsorption tower of resin, in making Waste Sulfuric Acid organic phase absorption on resin,
Organic phase is reclaimed；
(3) regenerated as the resin that desorbing agent will adsorb organic matter with the alkaline aqueous solution that mass concentration is 4-16%；
(4) high concentration desorption liquid being desorbed, neutralisation treatment is carried out with acid again, reclaims organic phase；
(5) the dilute sulfuric acid waste liquid obtained after absorption in step (2) carries out concentration, and carries out adsorption bleaching with activated carbon, can
Obtain the concentrated sulfuric acid of water white transparency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092649.6A CN106744719A (en) | 2016-12-01 | 2016-12-01 | A kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611092649.6A CN106744719A (en) | 2016-12-01 | 2016-12-01 | A kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106744719A true CN106744719A (en) | 2017-05-31 |
Family
ID=58915664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611092649.6A Pending CN106744719A (en) | 2016-12-01 | 2016-12-01 | A kind of method that waste sulfuric acid from alkylation treatment and organic phase are reclaimed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106744719A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460974A (en) * | 2021-08-14 | 2021-10-01 | 淄博点石环保科技有限公司 | Purification treatment process for high-concentration waste sulfuric acid |
-
2016
- 2016-12-01 CN CN201611092649.6A patent/CN106744719A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113460974A (en) * | 2021-08-14 | 2021-10-01 | 淄博点石环保科技有限公司 | Purification treatment process for high-concentration waste sulfuric acid |
| CN113460974B (en) * | 2021-08-14 | 2024-05-17 | 武威合才化工有限责任公司 | Purification treatment process for high-concentration waste sulfuric acid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170531 |