NL87214C - - Google Patents

Info

Publication number: NL87214C
Authority: NL; Netherlands

Application number

NL175337A

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.)

1952-01-17

Filing date

1953-01-16

Publication date

1958-01-15

1953-01-16 Application filed filed Critical

1953-09-18 Priority claimed from US381128A external-priority patent/US2760961A/en

1958-01-15 Application granted granted Critical

1958-01-15 Publication of NL87214C publication Critical patent/NL87214C/xx

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C3/00—Cyanogen; Compounds thereof
- C01C3/16—Cyanamide; Salts thereof

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Phenolic Resins Or Amino Resins (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Catalysts (AREA)
Silicon Compounds (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

NL175337A 1952-01-17 1953-01-16 NL87214C (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US317446XA	1952-01-17	1952-01-17
US381128A US2760961A (en)	1953-09-18	1953-09-18	Preparation of melamine

Publications (1)

Publication Number	Publication Date
NL87214C true NL87214C (de)	1958-01-15

Family

ID=31980755

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL175337A NL87214C (de)	1952-01-17	1953-01-16

Country Status (6)

Country	Link
BE (2)	BE516995A (de)
CH (1)	CH317446A (de)
DE (2)	DE942991C (de)
FR (1)	FR1112418A (de)
GB (2)	GB718934A (de)
NL (1)	NL87214C (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3009914A (en) *		1961-11-21		Melamine process
US3210352A (en) *		1965-10-05		Preparation of melamine
US3095416A (en) *		1963-06-25		Urea to melamine process
US3093644A (en) *		1963-06-11		Preparation of melamine
US3179664A (en) *		1965-04-20		Processes for preparing melamine
US3152128A (en) *		1964-10-06		Preparation of melamine
DE1216316B (de) *	1960-07-14	1966-05-12	Stamicarbon	Verbessertes Verfahren zur kontinuierlichen Herstellung von Melamin
US3054796A (en) *	1960-07-18	1962-09-18	Grace W R & Co	Melamine process
DE1138785B (de) *	1960-09-27	1962-10-31	Suddeutsche Kalkstickstoff Werke Aktiengesellschaft, Trostberg (Obb )	Verfahren zur Herstellung von melamin.
DE1215722B (de) *	1961-02-09	1966-05-05	Stamicarbon	Verfahren zur kontinuierlichen Herstellung von Melamin
DE1294386B (de) *	1961-09-29	1969-05-08	Lentia Gmbh Chem Und Pharm Erz	Verfahren zur Herstellung von Melamin
DE1209570B (de) *	1964-03-28	1966-01-27	Basf Ag	Verfahren zur Herstellung von Melamin
NL8400717A (nl) *	1984-03-06	1985-10-01	Stamicarbon	Werkwijze voor het bereiden van cyanamide.
FR2852011B1 (fr) *	2003-03-07	2006-07-07		Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete
CN107840811A (zh) *	2017-12-15	2018-03-27	黄河三角洲京博化工研究院有限公司	一种双氰胺的制备方法
CN115944942B (zh) *	2022-12-06	2024-04-12	四川金象赛瑞化工股份有限公司	一种氰胺类物质的制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2566228A (en) *		1951-08-28		Production of melamine
US2566224A (en) *		1951-08-28		Production of melamine
US2649446A (en) *		1953-08-18		Peocess for producing melamine
US2550659A (en) *		1951-04-24		Process for producing melamine
US2615018A (en) *		1952-10-21		Preparation of melamine
GB639962A (en) *	1946-03-27	1950-07-12	Du Pont	Process for the production of melamine

1953
- 1953-01-13 GB GB989/53A patent/GB718934A/en not_active Expired
- 1953-01-16 NL NL175337A patent/NL87214C/xx active
- 1953-01-16 CH CH317446D patent/CH317446A/de unknown
- 1953-01-17 BE BE516995D patent/BE516995A/xx unknown
- 1953-01-18 DE DEA17296A patent/DE942991C/de not_active Expired
1954
- 1954-09-17 GB GB26988/54A patent/GB767344A/en not_active Expired
- 1954-09-18 DE DEA21161A patent/DE1028126B/de active Pending
- 1954-09-18 FR FR1112418D patent/FR1112418A/fr not_active Expired
- 1954-09-18 BE BE531929D patent/BE531929A/xx unknown

Also Published As

Publication number	Publication date
DE942991C (de)	1956-05-09
FR1112418A (fr)	1956-03-14
GB718934A (en)	1954-11-24
GB767344A (en)	1957-01-30
BE531929A (de)	1958-01-03
BE516995A (de)	1954-11-26
DE1028126B (de)	1958-04-17
CH317446A (de)	1956-11-30

Publication	Publication Date	Title
FR999427A (de)	1952-01-30
FR999123A (de)	1952-01-25
FR1094651A (de)	1955-05-23
FR999293A (de)	1952-01-29
FR999182A (de)	1952-01-25
FR55286E (de)	1952-01-09
BE518447A (de)
BE519060A (de)
BE516136A (de)
BE516660A (de)	1953-01-15
BE516710A (de)
BE516863A (de)
BE524727A (de)
NL87214C (de)	1958-01-15
BE517286A (de)
BE517382A (de)
BE517409A (de)
BE523677A (de)
BE517821A (de)
BE517972A (de)
BE517992A (de)
BE518071A (de)
BE518105A (de)
BE518136A (de)
BE520435A (de)