- A method for reducing betaine free acid in the process method of the (by machine translation)
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This invention discloses a method for reducing free acid betaine in the process, firstly on the fatty acid with a batch of reaction distilled N, N - dimethyl - 1, 3 - propanediamines waste liquid reaction, then in the system by adding pure N, N - dimethyl - 1, 3 - propylene diamine reaction, to obtain the intermediate alkyl amide propyl dimethylamine, then the alkyl amide propyl dimethylamine and chloroethyl acid reaction, to prepare amide propyl betaine, reduces the betaine in the free acid. Compared with the prior art, the present invention through improved technology, the repeated use of reflux, the raw material is improved N, N - dimethyl - 1, 3 - propanediamines utilization rate, through the added raw materials under high temperature conditions N, N - dimethyl - 1, 3 - propylene diamine, reflux circulating reflux use, not only promote the condensation reaction degree, reduce the consumption of the raw materials, so that the content of free acid in the product is reduced, improving the product quality, and reduce environmental pollution, and improves the economic problem of cost-effectiveness, favorable to commercial production. (by machine translation)
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Paragraph 0024; 0027
(2017/11/08)
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- Compounds and Relative use for the Control of Phytopathogens
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Amphoteric compounds are described, having a zwitterionic structure of the betainic type having general formula (I) and their use for the control of phytopathogen fungi and/or the mitigation of abiotic and biotic stress.
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Page/Page column 7
(2009/05/29)
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- COMPOUNDS AND RELATIVE USE FOR THE CONTROL OF PHYTOPATHOGENS
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Amphoteric compounds are described, having a zwitterionic structure of the betainic type having general formula (I) and their use for the control of phytopathogen fungi and/or the mitigation of abiotic and biotic stress.
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Page/Page column 32
(2008/06/13)
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