DE1057086B - Verfahren zur Herstellung von wasserfreiem Formaldehyd - Google Patents

Verfahren zur Herstellung von wasserfreiem Formaldehyd

Info

Publication number
DE1057086B
DE1057086B DEP12316A DEP0012316A DE1057086B DE 1057086 B DE1057086 B DE 1057086B DE P12316 A DEP12316 A DE P12316A DE P0012316 A DEP0012316 A DE P0012316A DE 1057086 B DE1057086 B DE 1057086B
Authority
DE
Germany
Prior art keywords
formaldehyde
water
semi
column
formal
Prior art date
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.)
Pending
Application number
DEP12316A
Other languages
German (de)
English (en)
Inventor
Dennis Light Funck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of DE1057086B publication Critical patent/DE1057086B/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/511—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups
    • C07C45/515—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition involving transformation of singly bound oxygen functional groups to >C = O groups the singly bound functional group being an acetalised, ketalised hemi-acetalised, or hemi-ketalised hydroxyl group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/85—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DEP12316A 1953-07-16 1954-07-14 Verfahren zur Herstellung von wasserfreiem Formaldehyd Pending DE1057086B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US752163XA 1953-07-16 1953-07-16

Publications (1)

Publication Number Publication Date
DE1057086B true DE1057086B (de) 1959-05-14

Family

ID=22124300

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP12316A Pending DE1057086B (de) 1953-07-16 1954-07-14 Verfahren zur Herstellung von wasserfreiem Formaldehyd

Country Status (4)

Country Link
BE (1) BE560841A (nl)
DE (1) DE1057086B (nl)
FR (1) FR1108793A (nl)
GB (1) GB752163A (nl)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1151250B (de) * 1961-06-01 1963-07-11 Leuna Werke Iawalter Ulbrichti Verfahren zur Herstellung von wasserfreiem hochreinem Formaldehyd
DE1185600B (de) * 1960-12-28 1965-01-21 Du Pont Verfahren zur Herstellung von ameisensaeurefreiem, reinem, monomerem Formaldehyd
DE1191354B (de) * 1960-12-22 1965-04-22 Du Pont Verfahren zur Konzentrierung von alkoholhaltigen Formaldehydloesungen
DE1249846B (de) * 1966-06-20 1967-09-14 Leuna Werke Veb Verfahren zur Herstellung von monomerem Formaldehyd

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1138752B (de) * 1958-12-19 1962-10-31 Hoechst Ag Verfahren zur Herstellung von reinem Formaldehyd
DE1139825B (de) * 1958-12-27 1962-11-22 Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius & Bruning Frankfurt/M Verfahren zur Herstellung von reinem alkoholfreiemFormaldehyd.
DE1109660B (de) * 1959-01-07 1961-06-29 Degussa Verfahren zum Trocknen von monomerem, gasfoermigem Formaldehyd
GB9812083D0 (en) 1998-06-05 1998-08-05 Ici Plc Removal of water
JP5698548B2 (ja) * 2011-01-26 2015-04-08 ポリプラスチックス株式会社 ヘミホルマール濃縮物の製造方法及びホルムアルデヒドガスの製造方法
CN104725203B (zh) * 2015-03-24 2016-05-11 江苏凯茂石化科技有限公司 一种气体甲醛合成聚甲氧基二甲醚及脱酸的工艺装置及方法
CN104725202A (zh) * 2015-03-24 2015-06-24 江苏凯茂石化科技有限公司 一种用于聚甲氧基二甲醚原料生产的工艺装置及工艺方法
CN110885439B (zh) * 2019-11-22 2022-03-04 山东蓝星东大有限公司 一种降低聚醚多元醇挥发性有机物含量的方法

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191354B (de) * 1960-12-22 1965-04-22 Du Pont Verfahren zur Konzentrierung von alkoholhaltigen Formaldehydloesungen
DE1185600B (de) * 1960-12-28 1965-01-21 Du Pont Verfahren zur Herstellung von ameisensaeurefreiem, reinem, monomerem Formaldehyd
DE1151250B (de) * 1961-06-01 1963-07-11 Leuna Werke Iawalter Ulbrichti Verfahren zur Herstellung von wasserfreiem hochreinem Formaldehyd
DE1249846B (de) * 1966-06-20 1967-09-14 Leuna Werke Veb Verfahren zur Herstellung von monomerem Formaldehyd

Also Published As

Publication number Publication date
GB752163A (en) 1956-07-04
FR1108793A (fr) 1956-01-17
BE560841A (nl)

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