RU2010114101A - METHOD FOR PRODUCING POLYALKYLENE POLYAMINPOLYMETHYL PHOSPHONIC ACIDS - Google Patents
METHOD FOR PRODUCING POLYALKYLENE POLYAMINPOLYMETHYL PHOSPHONIC ACIDS Download PDFInfo
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- RU2010114101A RU2010114101A RU2010114101/04A RU2010114101A RU2010114101A RU 2010114101 A RU2010114101 A RU 2010114101A RU 2010114101/04 A RU2010114101/04 A RU 2010114101/04A RU 2010114101 A RU2010114101 A RU 2010114101A RU 2010114101 A RU2010114101 A RU 2010114101A
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- methylphosphorylation
- formalin
- formaldehyde
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Abstract
1. Способ получения полиалкиленполиаминполиметилфосфоновых кислот метилфосфорилированием аминов или аммонийных соединений формальдегидом и фосфористой кислотой в солянокислом растворе при кипении с последующим охлаждением реакционной массы и выделением целевого продукта в твердом виде, отличающийся тем, что формальдегид (в виде формалина) используют в 5-7%-ном избытке по сравнению со стехиометрией, а процесс метилфосфорилирования проводят при определенном режиме введения исходных реагентов, при котором сначала вводят фосфористую и соляную кислоты и формалин, а затем к образовавшейся реакционной смеси при перемешивании в течение 3-5 мин добавляют амин или аммонийное соединение. ! 2. Способ по п.1, отличающийся тем, что в качестве аминов используют химические соединения из группы: гексаметилендиамин, этилендиамин, диэтилентриамин, триэтилентетрамин. ! 3. Способ по п.1, отличающийся тем, что в качестве аммонийного соединения используют гидроокись аммония. 1. The method of producing polyalkylene polyamine polymethylphosphonic acids by methylphosphorylation of amines or ammonium compounds with formaldehyde and phosphorous acid in a hydrochloric acid solution during boiling, followed by cooling of the reaction mixture and isolation of the target product in solid form, characterized in that formaldehyde (in the form of formalin) is used in 5-7% - excess in comparison with stoichiometry, and the process of methylphosphorylation is carried out under a certain mode of introduction of the starting reagents, in which phosphorous and Brine acid and formalin, and then to the resultant reaction mixture with stirring for 3-5 min, the amine or ammonium compound. ! 2. The method according to claim 1, characterized in that as amines use chemical compounds from the group: hexamethylenediamine, ethylenediamine, diethylene triamine, triethylenetetramine. ! 3. The method according to claim 1, characterized in that the ammonium compound is ammonium hydroxide.
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RU2010114101/04A RU2434875C1 (en) | 2010-04-12 | 2010-04-12 | Polyalkylene polyamine polymethylphosphonic acid synthesis method |
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RU2010114101/04A RU2434875C1 (en) | 2010-04-12 | 2010-04-12 | Polyalkylene polyamine polymethylphosphonic acid synthesis method |
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RU2010114101A true RU2010114101A (en) | 2011-10-20 |
RU2434875C1 RU2434875C1 (en) | 2011-11-27 |
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RU2010114101/04A RU2434875C1 (en) | 2010-04-12 | 2010-04-12 | Polyalkylene polyamine polymethylphosphonic acid synthesis method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110981908A (en) * | 2019-11-08 | 2020-04-10 | 山东泰和水处理科技股份有限公司 | Production method of water treatment agent amino trimethylene phosphonic acid |
WO2021088457A1 (en) * | 2019-11-08 | 2021-05-14 | 山东泰和水处理科技股份有限公司 | Method for producing diethylenetriaminepenta(methylene-phosphonic acid) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2015185548A1 (en) * | 2014-06-02 | 2015-12-10 | Zschimmer & Schwarz Gmbh & Co.Kg | Process for producing crystalline dtpmp |
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2010
- 2010-04-12 RU RU2010114101/04A patent/RU2434875C1/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110981908A (en) * | 2019-11-08 | 2020-04-10 | 山东泰和水处理科技股份有限公司 | Production method of water treatment agent amino trimethylene phosphonic acid |
WO2021088459A1 (en) * | 2019-11-08 | 2021-05-14 | 山东泰和水处理科技股份有限公司 | Method for producing amino trimethylene phosphonic acid as water treatment agent |
WO2021088457A1 (en) * | 2019-11-08 | 2021-05-14 | 山东泰和水处理科技股份有限公司 | Method for producing diethylenetriaminepenta(methylene-phosphonic acid) |
CN110981908B (en) * | 2019-11-08 | 2021-10-12 | 山东泰和水处理科技股份有限公司 | Production method of water treatment agent amino trimethylene phosphonic acid |
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RU2434875C1 (en) | 2011-11-27 |
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