摘要:
The invention provides a process for preparing polyetheramines of the formula (1), R2 (NR1R3)n, in which n is a number from 1 to 20, R2 represents an organic radical that contains between 2 and 600 oxalkylene groups, and R1 and R3 are alike or different and represent hydrogen or an organic radical having 1 to 400 carbon atoms, by combining a compound of the formula (2), H(NR1R3), with a compound of the formula (3), R2 (OH)n, in the presence of hydrogen with a metal-containing catalyst whose metal content, based on the dry, reduced catalyst excluding any support material that may be present, is composed either of at least 80% by mass of cobalt or, in the case of Raney catalysts, of at least 80% by mass of metals from the group consisting of cobalt and aluminium, the catalyst containing less than 5% by mass of copper.
摘要翻译:本发明提供一种制备式(1)的聚醚胺,R2(NR1R3)n,其中n为1至20的数,R2表示含有2至600个氧亚烷基的有机基团,R1和R3 通过将式(2),H(NR 1 R 3)的化合物与式(3)的化合物,R2(OH)n, 在含有金属的催化剂的存在下,其金属含量(基于干燥的还原催化剂,不包括任何可能存在的载体材料)由至少80质量%的钴组成,或者在阮内 催化剂,至少80质量%的来自钴和铝的金属,所述催化剂含有小于5质量%的铜。
摘要:
The invention relates to a method for producing amines of formula (1), wherein R3 is an organic group containing from 2 to 600 alkoxy groups and R1 and R3 groups are similar or different and represent a hydrogen atom or an organic group containing from 1 to 400 carbon atoms. The inventive method consists in bringing a compound of formula (2) into contact a compound of formula (3) in the presence of hydrogen with a metal-containing catalyst, wherein the metal content in cobalt is equal to or greater than 80% by weight.
摘要:
The invention provides a process for preparing polyetheramines of the formula (1), R2 (NR1R3)n, in which n is a number from 1 to 20, R2 represents an organic radical that contains between 2 and 600 oxalkylene groups, and R1 and R3 are alike or different and represent hydrogen or an organic radical having 1 to 400 carbon atoms, by combining a compound of the formula (2), H(NR1R3), with a compound of the formula (3), R2 (OH)n, in the presence of hydrogen with a metal-containing catalyst whose metal content, based on the dry, reduced catalyst excluding any support material that may be present, is composed either of at least 80% by mass of cobalt or, in the case of Raney catalysts, of at least 80% by mass of metals from the group consisting of cobalt and aluminium, the catalyst containing less than 5% by mass of copper.
摘要翻译:本发明提供一种制备式(1)的聚醚胺,R2(NR1R3)n,其中n为1至20的数,R2表示含有2至600个氧亚烷基的有机基团,R1和R3 通过将式(2),H(NR 1 R 3)的化合物与式(3)的化合物,R2(OH)n, 在含有金属的催化剂的存在下,其金属含量(基于干燥的还原催化剂,不包括任何可能存在的载体材料)由至少80质量%的钴组成,或者在阮内 催化剂,至少80质量%的来自钴和铝的金属,所述催化剂含有小于5质量%的铜。
摘要:
The invention relates to a method for producing amines of formula (1), wherein R3 is an organic group containing from 2 to 600 alkoxy groups and R1 and R3 groups are similar or different and represent a hydrogen atom or an organic group containing from 1 to 400 carbon atoms. The inventive method consists in bringing a compound of formula (2) into contact a compound of formula (3) in the presence of hydrogen with a metal-containing catalyst, wherein the metal content in cobalt is equal to or greater than 80% by weight.
摘要:
The invention relates to a method for producing 1,2-propanediol, in that a liquid phase comprising at least 95 wt.-% glycerin is reacted with hydrogen in the presence of a copper-containing, powdered catalyst in a continuously operated stirred reactor at a pressure of 50 to 90 bar, wherein the stationary yield of the reaction is at least 60%.
摘要:
A method of stabilization of a melt viscosity of aliphatic- and/or aromatic homo- and/or co-polyesters containing catalysts and/or initiators, involves adding a masking agent which is tropon, .alpha.-tropolon, thujaplicin, pupurogallin or mixtures thereof to a melt resulting during synthesis of polyesters or during regeneration of polyesters.
摘要:
Process and apparatus for the continuous preparation of polymers Two reaction partners (starting materials) are stored in separate reservoirs 2, 3, 4 and 5 and are transported using overpressure via heated heat exchangers 11, 12 into a micromixer 18 by means of control and metering devices 6, 7, which can be metering pumps. In the heat exchangers 11, 12, the starting materials are heated, separately in each case, to the extent that during the mixing operation in the micromixer 18 the required reaction temperature is immediately reached. The polymerization takes place in a downstream tube reactor 20 which consists of tubes 21, 22, 23 which are connected in series.