GB1072170A - Process and apparatus for the recovery of formaldehyde - Google Patents

Process and apparatus for the recovery of formaldehyde

Info

Publication number
GB1072170A
GB1072170A GB5394365A GB5394365A GB1072170A GB 1072170 A GB1072170 A GB 1072170A GB 5394365 A GB5394365 A GB 5394365A GB 5394365 A GB5394365 A GB 5394365A GB 1072170 A GB1072170 A GB 1072170A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
gaseous mixture
water
paraformaldehyde
heat
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
GB5394365A
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.)
CB&I Technology Inc
Original Assignee
Lummus 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 Lummus Co filed Critical Lummus Co
Publication of GB1072170A publication Critical patent/GB1072170A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/0096—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/0084—Feeding or collecting the cooling medium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Formaldehyde is separated from a gaseous mixture containing formaldehyde, water vapour and gases, such as oxygen and nitrogen, by passing the gaseous mixture in indirect heat exchange with a coolant to condense and solidify the major proportion of the formaldehyde as paraformaldehyde and to condense a portion of the water vapour, separating the depleted gaseous mixture from the paraformaldehyde and condensed water, and then heating the paraformaldehyde and water together by indirect heat exchange to form an aqueous solution of formaldehyde. The formaldehydebearing gaseous mixture may be produced by a vapour-phase methanol oxidation plant employing air as oxidizing agent and a ferric oxide catalyst. The process may be carried out in an apparatus comprising two heat-exchangers associated with a system of valves whereby the flow of gaseous mixture may be switched from one heat-exchanger to the other so that the condensation of formaldehyde and water may take plac in one heat-exchanger while the paraformaldehyde and condensed water (formed in the previous cycle) are heated together in the other heat-exchanger (see Division B1). The depleted gaseous mixture may be scrubbed with water to recover residual formaldehyde.
GB5394365A 1964-12-21 1965-12-20 Process and apparatus for the recovery of formaldehyde Expired GB1072170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41981964A 1964-12-21 1964-12-21

Publications (1)

Publication Number Publication Date
GB1072170A true GB1072170A (en) 1967-06-14

Family

ID=23663899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5394365A Expired GB1072170A (en) 1964-12-21 1965-12-20 Process and apparatus for the recovery of formaldehyde

Country Status (3)

Country Link
DE (1) DE1299622B (en)
FR (1) FR1461079A (en)
GB (1) GB1072170A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110988017A (en) * 2019-12-20 2020-04-10 江苏方露检测科技服务有限公司 Method for rapidly detecting aldehyde ketone compounds in ambient air
CN117699891A (en) * 2024-01-12 2024-03-15 山东瀚圣新能源科技股份有限公司 Recovery processing device for formaldehyde production cooling water

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1263743B (en) * 1993-01-15 1996-08-27 Sapio Produzione Idrogeno Ossi PLANT FOR THE RECOVERY OF SOLVENTS OR SOLVENT MIXTURES, DISSOLVED IN AIR OR INERT GAS

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666708A (en) * 1925-06-24 1928-04-17 Ig Farbenindustrie Ag Manufacture of paraformaldehyde
US2529622A (en) * 1947-05-22 1950-11-14 Stanolind Oil & Gas Co Formaldehyde purification and polymerization with selective condensation of water vapor
GB874094A (en) * 1957-07-09 1961-08-02 Phoenix Rheinrohr Ag Improvements in or relating to a process for reducing the bore of a thick-walled pipe
DE1140921B (en) * 1960-06-02 1962-12-13 Farbenfabriken Bayer Aktiengesellschaft, Leverkusen Process for the production of highly purified formaldehyde.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110988017A (en) * 2019-12-20 2020-04-10 江苏方露检测科技服务有限公司 Method for rapidly detecting aldehyde ketone compounds in ambient air
CN117699891A (en) * 2024-01-12 2024-03-15 山东瀚圣新能源科技股份有限公司 Recovery processing device for formaldehyde production cooling water
CN117699891B (en) * 2024-01-12 2024-05-14 山东瀚圣新能源科技股份有限公司 Recovery processing device for formaldehyde production cooling water

Also Published As

Publication number Publication date
DE1299622B (en) 1969-07-24
FR1461079A (en) 1966-12-10

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