CN105523888A - Method for using cation exchange resin for catalytic synthesis of isopropanol - Google Patents
Method for using cation exchange resin for catalytic synthesis of isopropanol Download PDFInfo
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- CN105523888A CN105523888A CN201511035266.0A CN201511035266A CN105523888A CN 105523888 A CN105523888 A CN 105523888A CN 201511035266 A CN201511035266 A CN 201511035266A CN 105523888 A CN105523888 A CN 105523888A
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- Prior art keywords
- exchange resin
- gas
- cation exchange
- water
- reactor
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/03—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2
- C07C29/04—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
Abstract
The present invention relates to the field of chemistry, and in particular relates to a method for using cation exchange resin for catalytic synthesis of isopropanol. The method comprises the following steps: a liquid water and gas propylene mixture first enters from the top of reactors in parallel connection, and passes through the reactors according to the same direction; process water for full gas and liquid phase mixing and contacting with a catalyst comes out from an alcohol purification section, then sodium sulfate and iron ions are completely removed by ion-exchange, and the process water is recycled; the recycled water is separated into two parts, one small part is cooled and sent into a pressurization pump for quenching, and one larger part passes through another heat exchanger for heat exchange with crude isopropanol, and then quantitatively beaten into a reactor. Inorganic acid corrosion caused by dilute acid concentration can be reduced, because no concentrated acid is used, energy cost is saved, the amount of high COD wastewater can be reduced, and air pollution caused by sulfur dioxide and organic sulfur compounds can be reduced.
Description
Technical field
The present invention relates to chemical field, especially a kind of method of catalyzing cation exchange resin petrohol.
Background technology
Ion exchange resin is the reticular polymer compound of a class with active group.In its molecular structure, a part is the matrix skeleton of resin, and another part is the active group be made up of non diffusible ion and exchangable ion.Ion exchange resin has the functions such as exchange, selection, absorption and catalysis, is obtained for applies widely in fields such as industrial preparation of high-purity water, medical and health, metallurgy industry, biotechnology.In recent years, ion exchange resin is from kind, structure or performance, all occurred very large change, and it is produced and application is also obtained for very large development.
China has started produce and answer spent ion exchange resin since the 1950's.Through the development of over half a century, the Synthesis and applications technology of domestic conventional ion exchange resin is comparatively ripe, and level is with quite external.Ion exchange resin is mainly used in the industries such as electric power, food, medicine, electronics and metallurgy, along with oiler feed, tap water and electronic water etc. improve day by day to the purity requirement of ion-exchange water outlet, impel conventional ion exchange resin to produce and utilisation technology constantly perfect, expedite the emergence of many novel production technique to continue to bring out simultaneously, the paces of ion exchange resin product up-gradation and technical progress are also accelerated day by day.
Summary of the invention
The invention provides a kind of method of catalyzing cation exchange resin petrohol.
For realizing above-mentioned goal of the invention, the embodiment that the present invention takes is as follows:
A method for catalyzing cation exchange resin petrohol, comprises the following steps:
First liquid water and gas propylene mixtures are entered by the reactor head of parallel connection, and pass through reactor by same direction.It is from alcohol purification workshop section out then that gas phase and liquid phase fully mix the process water used with catalyst exposure, remove sodium sulfate completely, and iron ion recycles by ion-exchange.This recirculated water is divided into two strands, and sub-fraction, through overcooling, sends reactor to for chilling by force (forcing) pump.Larger part quantitatively squeezes into reactor after carrying out heat exchange by another one heat exchanger and thick Virahol.
Raw material propylene flows out from basin, throws in preheated water, after the gasification of this propylene, sends reactor to as gas one liquid mixture.
Bottom water alcohol out and residual gas, enter high-pressure separator.After this high-pressure separator liquid phase and process water carry out heat exchange, send into sodium hydroxide neutralizing well.
Low pressure unreacting gas, merges with high pressure unreacting gas after compression, through cooling, delivers to propylene concentration section.
Distillation: first distillation goes out diisopropyl ether from stripped overhead, and send to further processing, tower bottoms goes azeotrope column, obtains 87% Virahol from tower top.
Activity is the performance that catalyzer must have.Acidic catalyst hydration is particularly suitable for containing sulfonic ion exchange resin.These resins can make gelinite or microporous type.The activity of this catalyzer and the proportional relation of its Nitrogen ion concentration.Ion exchange resin expands in polar solvent, depends on their crosslinking degree.So the volume that sulfonic group contains basin and exchange resin has much relations.Crosslinking degree also affects adsorptive power.Strong cross-linking resin hampers macromole migration and enters granules of catalyst, and result activity is lower.
Reaction mechanism:
The invention has the beneficial effects as follows: the corruption decreasing the mineral acid caused when diluted acid concentrates is touched; Owing to saving energy cost without concentrated acid; Decrease the wastewater flow rate of high COD; Decrease the topsoil that sulfurous gas and organic sulfide cause.
Embodiment
Below in conjunction with embodiment, to according to embodiment provided by the invention, details are as follows:
Embodiment 1
A method for catalyzing cation exchange resin petrohol, comprises the following steps:
First liquid water and gas propylene mixtures are entered by the reactor head of parallel connection, and pass through reactor by same direction.It is from alcohol purification workshop section out then that gas phase and liquid phase fully mix the process water used with catalyst exposure, remove sodium sulfate completely, and iron ion recycles by ion-exchange.This recirculated water is divided into two strands, and sub-fraction, through overcooling, sends reactor to for chilling by force (forcing) pump.Larger part quantitatively squeezes into reactor after carrying out heat exchange by another one heat exchanger and thick Virahol.
Raw material propylene flows out from basin, throws in preheated water, after the gasification of this propylene, sends reactor to as gas one liquid mixture.
Bottom water alcohol out and residual gas, enter high-pressure separator.After this high-pressure separator liquid phase and process water carry out heat exchange, send into sodium hydroxide neutralizing well.
Low pressure unreacting gas, merges with high pressure unreacting gas after compression, through cooling, delivers to propylene concentration section.
Distillation: first distillation goes out diisopropyl ether from stripped overhead, and send to further processing, tower bottoms goes azeotrope column, obtains 87% Virahol from tower top.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (5)
1. by a method for catalyzing cation exchange resin petrohol, it is characterized in that: comprise the following steps: first liquid water and gas propylene mixtures are entered by the reactor head of parallel connection, and pass through reactor by same direction; It is from alcohol purification workshop section out then that gas phase and liquid phase fully mix the process water used with catalyst exposure, remove sodium sulfate completely, and iron ion recycles by ion-exchange; This recirculated water is divided into two strands, and sub-fraction, through overcooling, sends reactor to for chilling by force (forcing) pump, and larger part quantitatively squeezes into reactor after carrying out heat exchange by another one heat exchanger and thick Virahol.
2. the method for a kind of catalyzing cation exchange resin petrohol according to claim 1, is characterized in that: raw material propylene flows out from basin, throws in preheated water, after the gasification of this propylene, sends reactor to as gas one liquid mixture.
3. the method for a kind of catalyzing cation exchange resin petrohol according to claim 2, is characterized in that: bottom water alcohol out and residual gas, enter high-pressure separator.After this high-pressure separator liquid phase and process water carry out heat exchange, send into sodium hydroxide neutralizing well.
4. the method for a kind of catalyzing cation exchange resin petrohol according to claim 3, is characterized in that: low pressure unreacting gas, merges after compression with high pressure unreacting gas, through cooling, delivers to propylene concentration section.
5. the method for a kind of catalyzing cation exchange resin petrohol according to claim 4, it is characterized in that: distillation: first distillation goes out diisopropyl ether from stripped overhead, send to further processing, tower bottoms goes azeotrope column, obtains 87% Virahol from tower top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035266.0A CN105523888A (en) | 2015-12-31 | 2015-12-31 | Method for using cation exchange resin for catalytic synthesis of isopropanol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511035266.0A CN105523888A (en) | 2015-12-31 | 2015-12-31 | Method for using cation exchange resin for catalytic synthesis of isopropanol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105523888A true CN105523888A (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511035266.0A Pending CN105523888A (en) | 2015-12-31 | 2015-12-31 | Method for using cation exchange resin for catalytic synthesis of isopropanol |
Country Status (1)
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| CN (1) | CN105523888A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112771016A (en) * | 2018-10-03 | 2021-05-07 | 株式会社德山 | High-purity isopropyl alcohol and method for producing same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670006A (en) * | 2004-03-15 | 2005-09-21 | 中国科学院大连化学物理研究所 | Process for producing lower alcohol by direct hydration of low carbon olefin |
| CN103910601A (en) * | 2014-04-22 | 2014-07-09 | 凯瑞化工股份有限公司 | Method for producing monohydric alcohol from water and olefins |
-
2015
- 2015-12-31 CN CN201511035266.0A patent/CN105523888A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1670006A (en) * | 2004-03-15 | 2005-09-21 | 中国科学院大连化学物理研究所 | Process for producing lower alcohol by direct hydration of low carbon olefin |
| CN103910601A (en) * | 2014-04-22 | 2014-07-09 | 凯瑞化工股份有限公司 | Method for producing monohydric alcohol from water and olefins |
Non-Patent Citations (1)
| Title |
|---|
| 李兵: "用阳离子交换树脂作催化剂制取异丙醇", 《辽宁化工》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112771016A (en) * | 2018-10-03 | 2021-05-07 | 株式会社德山 | High-purity isopropyl alcohol and method for producing same |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |
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| RJ01 | Rejection of invention patent application after publication |