CH461809A - Verfahren zum Herstellen von Paraformaldehyd - Google Patents
Verfahren zum Herstellen von ParaformaldehydInfo
- Publication number
- CH461809A CH461809A CH652864A CH652864A CH461809A CH 461809 A CH461809 A CH 461809A CH 652864 A CH652864 A CH 652864A CH 652864 A CH652864 A CH 652864A CH 461809 A CH461809 A CH 461809A
- Authority
- CH
- Switzerland
- Prior art keywords
- paraformaldehyde
- production
- Prior art date
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0042220 | 1963-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH461809A true CH461809A (de) | 1968-08-31 |
Family
ID=7046674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH652864A CH461809A (de) | 1963-08-10 | 1964-05-20 | Verfahren zum Herstellen von Paraformaldehyd |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3351668A (de) |
| BE (1) | BE651600A (de) |
| CH (1) | CH461809A (de) |
| DE (1) | DE1495465B2 (de) |
| GB (1) | GB1017191A (de) |
| NL (1) | NL6405986A (de) |
| SE (1) | SE310661B (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3436423A (en) * | 1965-07-02 | 1969-04-01 | Sir Soc Italiana Resine Spa | Process for preparing formaldehyde |
| US5801453A (en) * | 1996-06-11 | 1998-09-01 | United Technologies Corporation | Process for preparing spherical energetic compounds |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2529622A (en) * | 1947-05-22 | 1950-11-14 | Stanolind Oil & Gas Co | Formaldehyde purification and polymerization with selective condensation of water vapor |
| US2593862A (en) * | 1948-11-19 | 1952-04-22 | Allen G Eickmeyer | Method for polymerization of formaldehyde and recovery of paraformaldehyde |
| US2704765A (en) * | 1949-11-18 | 1955-03-22 | Celanese Corp | Formaldehyde polymers |
-
1963
- 1963-08-10 DE DE19631495465 patent/DE1495465B2/de not_active Withdrawn
-
1964
- 1964-05-20 CH CH652864A patent/CH461809A/de unknown
- 1964-05-27 SE SE6431/64A patent/SE310661B/xx unknown
- 1964-05-28 NL NL6405986A patent/NL6405986A/xx unknown
- 1964-07-16 US US383208A patent/US3351668A/en not_active Expired - Lifetime
- 1964-08-04 GB GB31451/64A patent/GB1017191A/en not_active Expired
- 1964-08-07 BE BE651600D patent/BE651600A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3351668A (en) | 1967-11-07 |
| GB1017191A (en) | 1966-01-19 |
| DE1495465B2 (de) | 1970-11-05 |
| DE1495465A1 (de) | 1970-03-19 |
| BE651600A (de) | 1964-12-01 |
| SE310661B (de) | 1969-05-12 |
| NL6405986A (de) | 1965-02-11 |
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