RU96124244A - METHOD FOR CONTINUOUS PRODUCTION OF PETROL ALCOHOL - Google Patents
METHOD FOR CONTINUOUS PRODUCTION OF PETROL ALCOHOLInfo
- Publication number
- RU96124244A RU96124244A RU96124244/04A RU96124244A RU96124244A RU 96124244 A RU96124244 A RU 96124244A RU 96124244/04 A RU96124244/04 A RU 96124244/04A RU 96124244 A RU96124244 A RU 96124244A RU 96124244 A RU96124244 A RU 96124244A
- Authority
- RU
- Russia
- Prior art keywords
- hydrochloric acid
- benzyl alcohol
- distillation unit
- benzyl chloride
- benzyl
- Prior art date
Links
- 238000010924 continuous production Methods 0.000 title 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title 1
- WVDDGKGOMKODPV-UHFFFAOYSA-N benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 12
- 235000019445 benzyl alcohol Nutrition 0.000 claims 6
- 229940073608 benzyl chloride Drugs 0.000 claims 5
- 238000004821 distillation Methods 0.000 claims 5
- KCXMKQUNVWSEMD-UHFFFAOYSA-N Benzyl chloride Chemical compound ClCC1=CC=CC=C1 KCXMKQUNVWSEMD-UHFFFAOYSA-N 0.000 claims 4
- 239000008346 aqueous phase Substances 0.000 claims 2
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 claims 2
- 239000012074 organic phase Substances 0.000 claims 2
- 239000000047 product Substances 0.000 claims 2
- 239000002904 solvent Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 150000005524 benzylchlorides Chemical class 0.000 claims 1
- 239000006227 byproduct Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 238000005660 chlorination reaction Methods 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 239000012141 concentrate Substances 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 238000006460 hydrolysis reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 125000003944 tolyl group Chemical group 0.000 claims 1
Claims (1)
а) бензилхлорид и воду в молярном соотношении 1 : (10 - 70) подают в реактор с диспергирующими приспособлениями, где имеется температура 80 - 180oC, и смеси дают реагировать до достижения степени конверсии бензилхлорида, равной 30 - 90%,
б) продукт реакции после выхода из реактора разделяют на водную и органическую фазы,
в) органическую фазу в первом перегонном узле разделяют на бензилхлорид и сырой бензиловый спирт,
г) данный бензилхлорид возвращают в реактор,
д) сырой бензиловый спирт во втором перегонном узле рафинируют до высокочистого бензилового спирта, при этом получается содержащий побочные продукты (в частности дибензиловый эфир) кубовый продукт,
е) содержащую разбавленную соляную кислоту водную фазу из сепаратора в экстракторе обрабатывают растворителем, поглощающим еще растворенные в разбавленной соляной кислоте органические компоненты, в частности бензиловый спирт,
ж) экстракт в третьем перегонном узле освобождают от растворителя, возвращающегося в экстрактор,
з) кубовый продукт третьего перегонного узла подают в первый перегонный узел для получения бензилового спирта, и
и) разбавленную водную соляную кислоту из стадии экстракции после удаления остаточных органических компонентов подают в установку абсорбции соляной кислоты, чтобы концентрировать ее и в качестве высокочистой соляной кислоты подавать ее на дальнейшее употребление или на электролиз соляной кислоты с целью получения хлора, используемого для хлорирования в боковую цепь толуола,
при этом процесс осуществляют непрерывно.The method of obtaining benzyl alcohol by hydrolysis of benzyl chloride with water at elevated temperature, characterized in that
a) benzyl chloride and water in a molar ratio of 1: (10–70) are fed to a reactor with dispersing devices, where there is a temperature of 80–180 o C, and the mixture is allowed to react to achieve a benzyl chloride conversion level of 30–90%,
b) the reaction product after leaving the reactor is separated into aqueous and organic phases,
c) the organic phase in the first distillation unit is divided into benzyl chloride and crude benzyl alcohol,
g) this benzyl chloride is returned to the reactor,
e) the crude benzyl alcohol in the second distillation unit is refined to high-purity benzyl alcohol, and a bottom product containing by-products (in particular, dibenzyl ether) is obtained,
e) the aqueous phase containing the diluted hydrochloric acid from the separator in the extractor is treated with a solvent that absorbs the organic components still dissolved in dilute hydrochloric acid, in particular benzyl alcohol,
g) the extract in the third distillation unit is freed from the solvent returning to the extractor,
h) the bottom product of the third distillation unit is fed to the first distillation unit to obtain benzyl alcohol, and
i) diluted aqueous hydrochloric acid from the extraction stage after removing the residual organic components is fed to the hydrochloric acid absorption unit in order to concentrate it and to supply it as further pure hydrochloric acid for further use or for the electrolysis of hydrochloric acid to produce chlorine used for chlorination in the lateral toluene chain
however, the process is carried out continuously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19548876.8 | 1995-12-27 | ||
| DE19548876A DE19548876A1 (en) | 1995-12-27 | 1995-12-27 | Process for the continuous production of benzyl alcohol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU96124244A true RU96124244A (en) | 1999-02-10 |
| RU2176237C2 RU2176237C2 (en) | 2001-11-27 |
Family
ID=7781520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU96124244/04A RU2176237C2 (en) | 1995-12-27 | 1996-12-26 | Method of continuous synthesis of benzyl alcohol |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US5750801A (en) |
| EP (1) | EP0781748B1 (en) |
| JP (1) | JP3835871B2 (en) |
| AT (1) | ATE183490T1 (en) |
| BR (1) | BR9606172A (en) |
| CA (1) | CA2193922A1 (en) |
| CZ (1) | CZ291086B6 (en) |
| DE (2) | DE19548876A1 (en) |
| ES (1) | ES2135155T3 (en) |
| HU (1) | HU219766B (en) |
| IL (1) | IL119888A (en) |
| PL (1) | PL186077B1 (en) |
| RU (1) | RU2176237C2 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7838708B2 (en) | 2001-06-20 | 2010-11-23 | Grt, Inc. | Hydrocarbon conversion process improvements |
| US20050171393A1 (en) | 2003-07-15 | 2005-08-04 | Lorkovic Ivan M. | Hydrocarbon synthesis |
| WO2005021468A1 (en) | 2003-07-15 | 2005-03-10 | Grt, Inc. | Hydrocarbon synthesis |
| US20060100469A1 (en) | 2004-04-16 | 2006-05-11 | Waycuilis John J | Process for converting gaseous alkanes to olefins and liquid hydrocarbons |
| US8173851B2 (en) | 2004-04-16 | 2012-05-08 | Marathon Gtf Technology, Ltd. | Processes for converting gaseous alkanes to liquid hydrocarbons |
| US7244867B2 (en) | 2004-04-16 | 2007-07-17 | Marathon Oil Company | Process for converting gaseous alkanes to liquid hydrocarbons |
| US8642822B2 (en) | 2004-04-16 | 2014-02-04 | Marathon Gtf Technology, Ltd. | Processes for converting gaseous alkanes to liquid hydrocarbons using microchannel reactor |
| US7674941B2 (en) | 2004-04-16 | 2010-03-09 | Marathon Gtf Technology, Ltd. | Processes for converting gaseous alkanes to liquid hydrocarbons |
| US20080275284A1 (en) | 2004-04-16 | 2008-11-06 | Marathon Oil Company | Process for converting gaseous alkanes to liquid hydrocarbons |
| MY153701A (en) | 2006-02-03 | 2015-03-13 | Grt Inc | Separation of light gases from halogens |
| NZ570522A (en) | 2006-02-03 | 2011-08-26 | Grt Inc | Continuous process for converting natural gas to liquid hydrocarbons |
| US7998438B2 (en) | 2007-05-24 | 2011-08-16 | Grt, Inc. | Zone reactor incorporating reversible hydrogen halide capture and release |
| US8282810B2 (en) | 2008-06-13 | 2012-10-09 | Marathon Gtf Technology, Ltd. | Bromine-based method and system for converting gaseous alkanes to liquid hydrocarbons using electrolysis for bromine recovery |
| US8273929B2 (en) | 2008-07-18 | 2012-09-25 | Grt, Inc. | Continuous process for converting natural gas to liquid hydrocarbons |
| US8198495B2 (en) | 2010-03-02 | 2012-06-12 | Marathon Gtf Technology, Ltd. | Processes and systems for the staged synthesis of alkyl bromides |
| US8367884B2 (en) | 2010-03-02 | 2013-02-05 | Marathon Gtf Technology, Ltd. | Processes and systems for the staged synthesis of alkyl bromides |
| US8815050B2 (en) | 2011-03-22 | 2014-08-26 | Marathon Gtf Technology, Ltd. | Processes and systems for drying liquid bromine |
| US8436220B2 (en) | 2011-06-10 | 2013-05-07 | Marathon Gtf Technology, Ltd. | Processes and systems for demethanization of brominated hydrocarbons |
| US8829256B2 (en) | 2011-06-30 | 2014-09-09 | Gtc Technology Us, Llc | Processes and systems for fractionation of brominated hydrocarbons in the conversion of natural gas to liquid hydrocarbons |
| US8802908B2 (en) | 2011-10-21 | 2014-08-12 | Marathon Gtf Technology, Ltd. | Processes and systems for separate, parallel methane and higher alkanes' bromination |
| US9193641B2 (en) | 2011-12-16 | 2015-11-24 | Gtc Technology Us, Llc | Processes and systems for conversion of alkyl bromides to higher molecular weight hydrocarbons in circulating catalyst reactor-regenerator systems |
| CN102757312B (en) * | 2012-07-27 | 2015-05-13 | 湖北绿色家园精细化工有限责任公司 | High-selectivity and low-energy-consumption preparation method for benzyl alcohol |
| CN108129268A (en) * | 2018-01-12 | 2018-06-08 | 潜江新亿宏有机化工有限公司 | A kind of benzyl alcohol continuous rectification system |
| CN109665950B (en) * | 2018-11-16 | 2022-06-14 | 鲁西化工集团股份有限公司氯碱化工分公司 | Refining and purifying method of benzyl alcohol byproduct dibenzyl ether |
| CN110606798A (en) * | 2019-10-11 | 2019-12-24 | 武汉有机实业有限公司 | Method for preparing benzyl alcohol by using microchannel reactor without alkali |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8102761L (en) * | 1981-05-04 | 1982-11-05 | Eka Ab | METHOD AND APPARATUS FOR HYDROLYSIS OF ALFA-CHLORATED TOLUEN COMPOUNDS |
| DE19520612A1 (en) * | 1995-06-06 | 1996-12-12 | Bayer Ag | Process for the preparation of benzyl alcohol |
| DE19537752A1 (en) * | 1995-10-10 | 1997-04-17 | Bayer Ag | Process for the separation of a mixture of benzyl chloride, benzyl alcohol, dibenzyl ether and aqueous hydrochloric acid |
-
1995
- 1995-12-27 DE DE19548876A patent/DE19548876A1/en not_active Withdrawn
-
1996
- 1996-12-16 DE DE59602796T patent/DE59602796D1/en not_active Expired - Fee Related
- 1996-12-16 EP EP96120152A patent/EP0781748B1/en not_active Expired - Lifetime
- 1996-12-16 ES ES96120152T patent/ES2135155T3/en not_active Expired - Lifetime
- 1996-12-16 AT AT96120152T patent/ATE183490T1/en not_active IP Right Cessation
- 1996-12-16 US US08/767,729 patent/US5750801A/en not_active Expired - Lifetime
- 1996-12-20 CZ CZ19963788A patent/CZ291086B6/en not_active IP Right Cessation
- 1996-12-20 PL PL96317639A patent/PL186077B1/en not_active IP Right Cessation
- 1996-12-24 IL IL11988896A patent/IL119888A/en not_active IP Right Cessation
- 1996-12-24 CA CA002193922A patent/CA2193922A1/en not_active Abandoned
- 1996-12-25 JP JP35587396A patent/JP3835871B2/en not_active Expired - Fee Related
- 1996-12-26 BR BR9606172A patent/BR9606172A/en active Search and Examination
- 1996-12-26 RU RU96124244/04A patent/RU2176237C2/en not_active IP Right Cessation
- 1996-12-27 HU HU9603614A patent/HU219766B/en not_active IP Right Cessation
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