Abstract:
The present invention relates to heat-stable anion exchangers based on at least one aromatic monomer and at least one crosslinker having structural elements of the general formula (I) where Ak, Ak′, Ak″ are in each case independently of one another identically or differently a C1-C18-alkyl radical, n is an even number between 5 and 18, x+y=2 and X is Cl, Br, OH, HCO3, HSO4, ½ (SO4), ½ CO3, NO3, F, H2PO4, ½ HPO4, ⅓ PO4 with the result that these anion exchangers, preferably in the OH form, withstand a working temperature of at least 60° C., preferably of at least 80° C., over a relatively long time, a process for production thereof and also use thereof.
Abstract translation:本发明涉及基于至少一种芳族单体和至少一种具有通式(I)的结构元件的交联剂的热稳定阴离子交换剂,其中Ak,Ak',Ak“在每种情况下彼此独立地彼此独立地 或者不同的是C 1 -C 18 - 烷基,n是5至18之间的偶数,x + y = 2,X是Cl,Br,OH, HCO 3,HSO 4,½(SO 4 S),1/3 CO 3,NO 3, / SUB,F,H 2 PO 4,1/2 HPO 4,1/3 PO 4,和 结果是这些阴离子交换剂优选为OH形式,在相当长的时间内经受至少60℃,优选至少80℃的工作温度,其制备方法及其用途。
Abstract:
The present application relates to novel monodisperse, gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, where R1 is an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, R2 is a radical —(CH2)q—COOR3, R3 is a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2, q is an integer from 1 to 5 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating.
Abstract:
The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having aminomethylphosphonic acid groups and iminodimethylphosphonic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, and a markedly lengthened loading duration of the chelating resin, to the chelating exchangers themselves, and also to uses thereof.
Abstract:
The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) but also —(CH2)mNR1R2 groups and/or if appropriate —(CH2)mNR1R2R3 groups, wherein m is an integer from 1 to 4 and R1, R2, R3 in each case independently of one another are hydrogen, —CH3, —CH2CH3, —CH2CH2CH3, benzyl, —OCH2CH3 or —CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.
Abstract translation:本发明涉及新型的两性离子交换剂,其不仅具有式(I)的邻苯二甲酰胺基团,而且还具有 - (CH 2)m N R 1 R 2基团和/或如果合适的 - (CH 2)m N R 21 R 3基团,其中m是1至4的整数 R 1,R 2,R 3各自独立地为氢,-CH 3,-CH 2 CH 3,-CH 2 CH 2 CH 3,苄基,-OCH 2 CH 3或-CH 2 CH 2 OH,X为H或Na或K,为其制备方法,并且还使用 其中。
Abstract:
The present invention relates to a method of producing novel monodisperse chelate resins based on crosslinked polymer beads containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups that have a high uptake capacity for heavy metals and rapid kinetics.
Abstract:
The present application relates to novel gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, where R1 is an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, R2 is —CH2—S—CH2COOR3 or —CH2—S—C1-C4-alkyl or —CH2—S—CH2CH(NH2)COOR3 or —CH2—S—CH2—CH(OH)—CH2(OH) or or derivatives thereof or —C═S(NH2), R3 is a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating.
Abstract:
The present invention relates to a method of producing novel chelate resins based on crosslinked polymer beads starting with methacrylic compounds, containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups as functional groups, that have a high uptake capacity for heavy metals and rapid kinetics.
Abstract:
The present application relates to novel chelate resins which contain, as a functional group, quaternary nitrogen atoms in structures of the general formula (I) in which at least one of the radicals R1 to R3 represents an optionally substituted radical of the series consisting of picolyl, methylquinoline or methylpiperidine, m represents an integer from 1 to 4 and M represents the polymer matrix and X represents a counterion of the series consisting of hydroxide OH−, halide, preferably Cl−, Br−, or sulphate SO42−, a process for their preparation and the use thereof, in particular the use of the novel chelate resins in hydrometallurgy and electroplating.
Abstract:
The present invention relates to a method of producing novel chelate resins based on crosslinked polymer beads starting with methacrylic compounds, containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups as functional groups, that have a high uptake capacity for heavy metals and rapid kinetics.
Abstract:
The present invention relates to heat-stable anion exchangers based on at least one aromatic monomer and at least one crosslinker having structural elements of the general formula (I) where Ak, Ak′, Ak″ are in each case independently of one another identically or differently a C1-C18-alkyl radical, n is an even number between 5 and 18, x+y=2, where x is equal to 0 or 1, and X is Cl, Br, OH, HCO3, HSO4, ½ (SO4), ½ CO3, NO3, F, H2PO4, ½ HPO4, ⅓ PO4 with the result that these anion exchangers, preferably in the OH form, withstand a working temperature of at least 60° C., preferably of at least 80° C., over a relatively long time, a process for production thereof and also use thereof.
Abstract translation:本发明涉及基于至少一种芳族单体和至少一种具有通式(I)结构单元的交联剂的热稳定阴离子交换剂,其中Ak,Ak',Ak“在每种情况下彼此独立地相同或相同 不同的是C 1 -C 18烷基,n是5和18之间的偶数,x + y = 2,其中x等于0或1,X是Cl,Br,OH,HCO 3,HSO 4,½(SO 4 ),½CO 3,NO 3,F,H 2 PO 4,½HPO 4,1 PO 4,结果这些阴离子交换剂优选为OH形式,耐受至少60℃,优选至少80℃的工作温度。 在相当长的时间内,其生产方法及其用途。