FR783569A - Produits de concentration de l'aldéhyde formique - Google Patents

Produits de concentration de l'aldéhyde formique

Info

Publication number
FR783569A
FR783569A FR783569DA FR783569A FR 783569 A FR783569 A FR 783569A FR 783569D A FR783569D A FR 783569DA FR 783569 A FR783569 A FR 783569A
Authority
FR
France
Prior art keywords
formaldehyde concentration
concentration products
products
formaldehyde
concentration
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)
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Application granted granted Critical
Publication of FR783569A publication Critical patent/FR783569A/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00—Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08—Polymerisation of formaldehyde
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
FR783569D 1933-11-17 1934-11-17 Produits de concentration de l'aldéhyde formique Expired FR783569A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE783569X 1933-11-17

Publications (1)

Publication Number Publication Date
FR783569A true FR783569A (fr) 1935-07-16

Family

ID=6697499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR783569D Expired FR783569A (fr) 1933-11-17 1934-11-17 Produits de concentration de l'aldéhyde formique

Country Status (1)

Country Link
FR (1) FR783569A (fr)

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