CH444485A - Verfahren zum Herstellen von freifliessendem Paraformaldehyd - Google Patents

Verfahren zum Herstellen von freifliessendem Paraformaldehyd

Info

Publication number
CH444485A
CH444485A CH1078764A CH1078764A CH444485A CH 444485 A CH444485 A CH 444485A CH 1078764 A CH1078764 A CH 1078764A CH 1078764 A CH1078764 A CH 1078764A CH 444485 A CH444485 A CH 444485A
Authority
CH
Switzerland
Prior art keywords
paraformaldehyde
preparation
free flowing
flowing
free
Prior art date
Application number
CH1078764A
Other languages
English (en)
Inventor
Hans-Joachim Dr Mann
Walter Dr Pohl
Simon Klaus
Original Assignee
Degussa
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 filed Critical Degussa
Publication of CH444485A publication Critical patent/CH444485A/de

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2/00Addition polymers of aldehydes or cyclic oligomers thereof or of ketones; Addition copolymers thereof with less than 50 molar percent of other substances
    • C08G2/08Polymerisation of formaldehyde
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/16Evaporating by spraying
    • B01D1/18Evaporating by spraying to obtain dry solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/30Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00Drying solid materials or objects by processes involving the application of heat
    • F26B3/02Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/10Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it
    • F26B3/12Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour carrying the materials or objects to be dried with it in the form of a spray, i.e. sprayed or dispersed emulsions or suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH1078764A 1963-11-14 1964-08-18 Verfahren zum Herstellen von freifliessendem Paraformaldehyd CH444485A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED42931A DE1208887B (de) 1963-11-14 1963-11-14 Verfahren zum Herstellen von freifliessendem Paraformaldehyd

Publications (1)

Publication Number Publication Date
CH444485A true CH444485A (de) 1967-09-30

Family

ID=7047223

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1078764A CH444485A (de) 1963-11-14 1964-08-18 Verfahren zum Herstellen von freifliessendem Paraformaldehyd

Country Status (8)

Country Link
US (1) US3316309A (de)
BE (1) BE655767A (de)
CH (1) CH444485A (de)
DE (1) DE1208887B (de)
GB (1) GB1019486A (de)
NL (1) NL6411707A (de)
NO (1) NO116521B (de)
SE (1) SE320354B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1720472B1 (de) * 1967-05-09 1971-10-07 Degussa Verfahren zum herstellen von freifliessendem paraformaldehyd
US4036891A (en) * 1975-12-29 1977-07-19 Moller Jens C T Process for preparing paraformaldehyde
US4550213A (en) * 1984-06-29 1985-10-29 Celanese Corporation Method of manufacture for paraformaldehyde prills
DD272576A3 (de) * 1987-01-30 1989-10-18 Leuna Werke Veb Verfahren zur herstellung von koernigem paraformaldehyd
DE10256531A1 (de) * 2002-12-04 2004-06-24 Degussa Ag Verfahren zur Herstellung von wasserfreiem Alkalisulfid
DE10256530A1 (de) * 2002-12-04 2004-06-24 Degussa Ag Verfahren zur Herstellung von wasserfreiem Alkalisulfid
CN104130360A (zh) * 2014-07-21 2014-11-05 江苏凯茂石化科技有限公司 一种多聚甲醛生产工艺方法
CN104130359B (zh) * 2014-07-21 2016-11-23 江苏凯茂石化科技有限公司 一种多聚甲醛生产工艺装置
CN104591984A (zh) * 2014-12-12 2015-05-06 北京东方红升新能源应用技术研究院有限公司 一种以浓缩甲醛为原料制备聚甲氧基二甲醚的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568017A (en) * 1949-10-18 1951-09-18 Celanese Corp Paraformaldehyde from formaldehyde
US2568018A (en) * 1949-10-28 1951-09-18 Celanese Corp Treatment of paraformaldehyde
US2992277A (en) * 1959-04-28 1961-07-11 Du Pont Paraformaldehyde manufacture

Also Published As

Publication number Publication date
SE320354B (de) 1970-02-09
NO116521B (de) 1969-04-08
GB1019486A (en) 1966-02-09
NL6411707A (de) 1965-05-17
DE1208887B (de) 1966-01-13
US3316309A (en) 1967-04-25
BE655767A (de) 1965-03-01

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