TW297020B - - Google Patents
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- TW297020B TW297020B TW084110225A TW84110225A TW297020B TW 297020 B TW297020 B TW 297020B TW 084110225 A TW084110225 A TW 084110225A TW 84110225 A TW84110225 A TW 84110225A TW 297020 B TW297020 B TW 297020B
- Authority
- TW
- Taiwan
- Prior art keywords
- crude
- solution
- tower
- glycol solution
- heavy fractions
- Prior art date
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C33/00—Unsaturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C33/04—Acyclic alcohols with carbon-to-carbon triple bonds
- C07C33/042—Acyclic alcohols with carbon-to-carbon triple bonds with only one triple bond
- C07C33/044—Alkynediols
- C07C33/046—Butynediols
-
- 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
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
- C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
- C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
經濟部中央標隼局員工消費合作社印製 A7 B7 五、發明説明(1 ) 本發明係關於由業已除去乙炔、甲醛、炔丙醇或類Μ 之不欲成份的粗製紫鉚素二醇溶液分離重餾份之方法。 由紫_素二醇合成所得粗製紫鉚素二醇溶液,仍含有 物理上溶化之乙炔、未反應甲醛、炔丙醇,以及輕餾份 和重餾份。已知利用於提塔去除乙炔,然後將粗製紫鉚 素二醇溶液引進前後串聯之二真空蒸餾塔内。在第一真 空蒸餾塔内,粗製紫鉚素二醇溶液脫除甲醛和輕餾份, 而在第二真空蒸餾塔内,分離重餾份,從塔頂取出純紫 鉚素二醇溶液(參見例如化學系統公司:紫鉚素二醇/ 四氫呋喃報告*91S15號,1993年4月,第22頁,圖Κ. B . 1 )。第二真空蒸餾塔是在溫度小於1 4 5 和壓力為5至 20毫巴下進行蒸餾。此等參數係有其必要,以達成較佳 蒸餾,即盡量減少紫鉚素二醇的進一步形成聚合物。在 此方法中所用真空蒸餾Μ分離甲醛,則釋出甲醛的粗製 紫_素二醇溶液留在第一真空蒸餾塔底,幾乎不含水份 。粗製紫鉚素二醇溶液經煮佛,會強化重餾份的形成。 因此,有礙加氫的重餾份量高到比前所述,必須藉另一 真空蒸餾塔加Μ分離。在由紫鉚素二醇經催化合成並在 隨後製法步驟中形成的重餾份,必須在紫鉚素二醇催化 加氫之前除去,不然會導致產品劣化,且有害於加氫觸 媒。由於粗製紫鉚素二醇溶液在第二真空蒸餾塔内停留 時間較長,會促成額外形成聚合物和重餾份。真空蒸餾 所需塔一方面造價昂貴,另方面操作較難。 本發明之目的,在於以較簡單方式,從粗製紫鉚素二 -3- 本紙張尺度適用中國國家標準(CNS ) Α4規格(210Χ 297公釐) 1 UK In «^1— «n I I nn i TV "i (請先閱讀背面之注意事項再填寫本頁) 29702 -沖充 五、發明説明(q A7 B7 經濟部中央樣準局員工消費合作社印变 醇溶液分離重豳份。 按照本發明可如此達成,即在閃蒸塔内,由粗製紫铆 素二醇溶液分離重餾份。迄今所用真空蒸餾塔,則改用 閃蒸塔。導入閃蒸塔内的粗製紫_素二醇溶液.>乂及在 閃蒸塔頂和塔底所得部分,在閃蒸塔内停留時間遠較真 空蒸餾塔情形為短。因此,蓠質上可減少聚合物和重餾份 的形成。由於絜挪素二醇和重餾份間的沸點相差夠大, 重餾份可在閃蒸塔内到達塔頂取出的紫鉚素二醇中,為 随後加氫階段所能容許的程度。 本發明方法之簧豳特激為:引進閃蒸塔的粗製紫_素 二醇溶液,溫度在1 2 0和1 7 Ο π間,壓力在5和5 0毫巴間 0 實驗室試驗结果,當閃蒸塔内溫度140它和壓力5橐 巴時,塔頂生成的·紫剔I素二醇餾份,含99. 5質量%紫_ 素二醇,R有0 . 1質量%重餾份。 綜上所述,本發明方法相對於已知方法,具有許多優 點。比較而言,閃蒸塔可以免除昂貴的真空蒸豳塔。而 且,閃蒸塔較真空蒸餾塔便利控制,因為閃蒸塔無底盤或 填充物等構件,可降低必要的搡作成本。因為這些構件 在現今蒸餾塔内久而久之會黏著重餾份,而造成不可忽 視的壓力損失。因此,必須時時清潔構件。採用閃蒸塔 分離重餾份,_則不需此種清潔操作。 (請先閲讀背面之注意事項再填寫本頁) 裝.
*1T —— 本紙張尺度適用中國國家標隼(CNS ) A4規格(210X 297公釐)
Claims (1)
- 597020 ABCD 六、申請專利範圍 1. 一種由業已除去乙炔、甲醛、炔丙醇或類似之不欲成 份的粗製紫鉚素二醇溶液分離重餾份之方法,其特徵 為:在閃蒸塔内,由粗製紫鉚素二醇溶液分離重餾份 者0 2 .如申請專利範圍第1項之方法,其中引進閃蒸塔内之 粗製紫鉚素二醇溶液,溫度在1 2 0和1 7 0 1C間而壓力在 5和50毫巴間者。 m ml n In I n^i 1—* (請先閱讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 -5- 本紙張尺度適用中國國家標準(CNS ) A4規格(210 X 297公釐)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4432581A DE4432581C2 (de) | 1994-09-13 | 1994-09-13 | Verfahren zum Abtrennen der Schwersiederfraktion aus einer Roh-Butindiollösung |
Publications (1)
Publication Number | Publication Date |
---|---|
TW297020B true TW297020B (zh) | 1997-02-01 |
Family
ID=6528102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW084110225A TW297020B (zh) | 1994-09-13 | 1995-09-30 |
Country Status (4)
Country | Link |
---|---|
KR (1) | KR100369972B1 (zh) |
CN (1) | CN1125711A (zh) |
DE (1) | DE4432581C2 (zh) |
TW (1) | TW297020B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005042185A1 (de) * | 2005-09-06 | 2007-03-08 | Basf Ag | Verfahren zur Abtrennung von polymeren Nebenprodukten aus 1,4-Butindiol |
DE102005042184A1 (de) | 2005-09-06 | 2007-03-08 | Basf Ag | Verfahren zur Abtrennung von polymeren Nebenprodukten aus 1,4-Butindiol |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1063147B (de) * | 1956-08-07 | 1959-08-13 | Basf Ag | Verfahren zur Herstellung von Butin-2-diol-1, 4 |
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1994
- 1994-09-13 DE DE4432581A patent/DE4432581C2/de not_active Expired - Fee Related
-
1995
- 1995-08-26 KR KR1019950026779A patent/KR100369972B1/ko not_active IP Right Cessation
- 1995-08-28 CN CN95115579A patent/CN1125711A/zh active Pending
- 1995-09-30 TW TW084110225A patent/TW297020B/zh active
Also Published As
Publication number | Publication date |
---|---|
DE4432581A1 (de) | 1996-03-14 |
KR100369972B1 (ko) | 2003-05-23 |
DE4432581C2 (de) | 1997-01-23 |
KR960010599A (ko) | 1996-04-20 |
CN1125711A (zh) | 1996-07-03 |
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