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FR1108793A - Préparation de la formaldéhyde purifiée - Google Patents

Préparation de la formaldéhyde purifiée

Info

Publication number
FR1108793A
FR1108793A FR1108793DA FR1108793A FR 1108793 A FR1108793 A FR 1108793A FR 1108793D A FR1108793D A FR 1108793DA FR 1108793 A FR1108793 A FR 1108793A
Authority
FR
France
Prior art keywords
preparation
purified formaldehyde
formaldehyde
purified
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.)
Expired
Application number
Other languages
English (en)
French (fr)
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
Application granted granted Critical
Publication of FR1108793A publication Critical patent/FR1108793A/fr
Expired 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)
FR1108793D 1953-07-16 1954-07-05 Préparation de la formaldéhyde purifiée Expired FR1108793A (fr)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR1108793A true FR1108793A (fr) 1956-01-17

Family

ID=22124300

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1108793D Expired FR1108793A (fr) 1953-07-16 1954-07-05 Préparation de la formaldéhyde purifiée

Country Status (4)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1109660B (de) * 1959-01-07 1961-06-29 Degussa Verfahren zum Trocknen von monomerem, gasfoermigem Formaldehyd
DE1139825B (de) * 1958-12-27 1962-11-22 Farbwerke Hoechst Aktiengesellschaft vormals Meister Lucius & Bruning Frankfurt/M Verfahren zur Herstellung von reinem alkoholfreiemFormaldehyd.

Families Citing this family (10)

* 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
US3128313A (en) * 1960-12-22 1964-04-07 Du Pont Preparation of concentrated formaldehyde
GB1005439A (en) * 1960-12-28 1965-09-22 Du Pont Removal of formic acid from aqueous formaldehyde solutions containing an alcohol and/or the formal thereof
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
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
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
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
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
GB752163A (en) 1956-07-04
DE1057086B (de) 1959-05-14
BE560841A (ja)

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