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    Liquid enrichment and/or separation by absorption processes
    1.
    发明授权
    Liquid enrichment and/or separation by absorption processes 失效
    通过吸收过程进行液体富集和/或分离

    公开(公告)号：US2974178A

    公开(公告)日：1961-03-07

    申请号：US61577956

    申请日：1956-10-15

    申请人： ROHM & HAAS

    发明人： HWA JESSE C H ,  MCBURNEY CHARLES H ,  MEITZNER ERICH F

    IPC分类号： B01D15/04 ,  B01D15/08 ,  B01J20/22 ,  C02F1/28 ,  C07B61/00 ,  C07C7/12 ,  C07C17/38 ,  C07C45/79 ,  C07C67/48 ,  C07C201/16 ,  C08F36/20 ,  C10G25/02

    CPC分类号： C10G25/02 ,  B01D15/08 ,  B01D15/265 ,  B01J20/22 ,  C07C7/12 ,  C07C17/38 ,  C07C17/389 ,  C07C29/76 ,  C07C29/82 ,  C07C45/79 ,  C07C45/84 ,  C07C67/56 ,  C07C201/16 ,  C07C253/34 ,  C07C2601/14 ,  C08F36/20 ,  C07C205/06 ,  C07C19/045 ,  C07C9/21 ,  C07C13/18 ,  C07C19/041 ,  C07C25/06 ,  C07C15/04 ,  C07C255/08 ,  C07C49/08 ,  C07C33/03 ,  C07C69/24 ,  C07C69/50

    摘要： In a method of concentrating or separating a component of a homogenous liquid mixture of at least two substantially non-ionogenic compounds, at least one of which is organic, the mixture is contacted with a resin absorbent having a large surface area per unit weight, the resin absorbent being (a) a crosslinked addition polymer other than an ionexchange resin, (b) insoluble in the liquid mixture and (c) having a preferential absorptive capacity for the component to be concentrated. Absorption may be tested for by agitating the resin with a mixture for a given time and analysing the mixture before and after absorption. The separatory capacity of a resin is defined as where m is the weight of the resin in grams, V is the volume of liquid mixture added in ml., and c0 and c are the volume fractions of the preferentially absorbed component in the liquid phase before and after absorption respectively. Separatory capacities of various specified resins are given for each of the following in admixture with iso-octane: 4-vinylcyclohexene, cyclohexanol, toluene, ethyl acetate, methyl ethyl ketone, styrene, chlorobenzene, ethylene dichloride, chloroform, dioxane, pyridine, naphthalene, nitrobenzene and pyrrole; for each of ethylene dichloride, styrene, and chlorobenzene in admixture with toluene; and for the first named component of each of the following mixtures: ethylene dichloride-ethyl acetate, styrene-4-vinylcyclohexene, chlorobenzene-allyl alcohol, benzene-acrylonitrile, allyl alcohol-water, chloroform-acetone. The treatment of hydrocarbon mixtures such as paraffin/naphthene, olefin/paraffin and solvent mixtures containing alcohols, ketones, hydrocarbons and esters; and also mixtures of capryl alcohol with methyl hexyl ketone and n-butanol with water is referred to. The absorption process can be carried out batchwise or continuously. In the former the liquid mixture is passed through a column packed with resin particles, or the resin particles may pass countercurrent to the liquid. When a two-component mixture A and B, of which A is preferentially absorbed, is passed over the resin, B issues first from the resin until the limit of the absorption capacity for A is reached, after which the original mixture A and B will issue. Enriched A is separated from the resin e.g. by heat, steam distillation, extraction or desorption with another solvent. In the continuous treatment the use of a desorbent C allows complete separation of A and B, and the resin supported in a column is fed alternately with liquid mixture and with desorbent. The desorbent consists of one or more liquids, is completely miscible with A and B, and has a swelling power for the resin of the same order as that of one of the components of the liquid mixture to be separated. Examples describe batch methods for partially separating tolueneiso-octane, dimethyl sebacate-iso-octane, methyl caprate-iso-octane, ethylene dichloride-cyclohexane mixtures using copolymers of divinyl benzene with 2-ethylhexyl acrylate, n-butyl acrylate, n-butyl methacrylate, ethoxyethyl acrylate, and methyl acrylate as absorbents. Examples also describe continuous methods for completely separating toluene from isooctane using n-pentane as desorbent; dimethyl sebacate from methyl stearate and/or methyl caprate using iso-octane as desorbent; ethylene dichloride from cyclohexane and chloroform from acetone using toluene as desorbent in each case; also chlorobenzene from allyl alcohol, benzene from acrylonitrile, and nitrobenzene from iso-octane using as desorbents methanol, methylene dichloride and benzene respectively. Resins used in the examples of continuous methods are n-butyl and methyl acrylates copolymerized with divinylbenzene. Specifications 786,755, 846,890 and 858,865 are referred to.ALSO:In a method of concentrating or separating a component of a homogeneous liquid mixture of at least two substantially non-ionogenic compounds, at least one of which is organic, the mixture is contacted with a resin absorbent having a large surface area per unit weight, the resin absorbent being (a) a cross-linked addition polymer other than an ion-exchange resin, (b) insoluble in the liquid mixture and (c) having a preferential absorptive capacity for the component to be concentrated. Absorption may be tested for by agitating the resin with a mixture for a given time and analysing the mixture before and after absorption. The separatory capacity of a resin is defined as where m is the weight of the resin in grams, V is the volume of liquid mixture added in ml., and Co and C are the Volume fractions of the preferentially absorbed component in the liquid phase before and after absorption respectively. Separatory capacities of various specified resins are given for each of the following in admixture with iso-octane: 4-vinylcyclohexene, cyclohexanol, toluene, ethyl acetate, methylethylketone, styrene, chlorobenzene, ethylene dichloride, chloroform dioxane, pyridine, naphthalene, nitrobenzene, and pyrrole; for each of ethylene dichloride, styrene, and chlorobenzene in admixture with toluene; and for the first named component of each of the following mixtures: ethylene dichloride-ethyl acetate, styrene, 4-vinylcyclohexene, chlorobenzene-allyl alcohol, benzene-acrylonitrile, allyl alcohol-water, chloroform-acetone. The treatment of hydrocarbon mixtures such as paraffin/naphthene, olefin/paraffin and solvent mixtures containing alcohols. Ketones, hydrocarbons and esters; and also mixtures of capryl alcohol with methylhexyl ketone and n-butanol with water is referred to. The absorption process can be carried out batchwise or continuously. In the former the liquid mixture is passed through a column packed with resin particles, or the resin particles may pass countercurrent to the liquid. When a two-component mixture A and B, of which A is preferentially absorbed, is passed over the resin, B issues first from the resin until the limit of the absorption capacity for A is reached, after which the original mixture A and B will issue. Enriched A is separated from the resin e.g. by heat, steam distallition, extraction or desorption with another solvent. In the continuous treatment the use of a desorbent C allows complete separation of A and B and the resin supported in a column is fed alternately with liquid mixture and with desorbent. The desorbent consists of one or more liquids, is completely miscible with A and B, and has a swelling power for the resin of the same order as that of one of the components of the liquid mixture to be separated. Examples describe batch methods for partially separating toluene-iso - octane, dimethyl sebacate-iso-octane, p methyl caprate-iso-octane, ethylene dichloride-cyclohexane mixtures using copolymers of divinyl benzene with 2-ethylhexyl acrylate, n-butyl acrylate, n-butyl methacrylate, ethoxy-ethyl acrylate, and methyl acrylate as absorbents. Examples also describe continuous methods for completely separating toluene from iso-octane using n-pentane as desorbent: dimethyl sebacate from methyl stearate and/or methyl caprate using iso-octane as desorbent; ethylene dichloride from cyclohexane and chloroform from acetone using toluene as desorbent in each case; also chlorobenzene from allyl alcohol, benzene from acrylonitrile, and nitrobenzene from iso-octane using as desorbents methanol, methylene dichloride and benzene respectively. Resins used in the examples of continuous methods are n-butyl and methyl acrylates copolymerized with divinyl-benzene. Specifications 786,755, 846,890 and 858,865 are referred to.

    Cellulosic paper containing ion exchange resin and process of making the same
    4.
    发明授权
    Cellulosic paper containing ion exchange resin and process of making the same 失效
    含有离子交换树脂的纤维素纸及其制造方法

    公开(公告)号：US2955067A

    公开(公告)日：1960-10-04

    申请号：US46362454

    申请日：1954-10-20

    申请人： ROHM & HAAS

    发明人： MCBURNEY CHARLES H ,  MEITZNER ERICH F

    IPC分类号： A24B3/14 ,  A24D3/12 ,  A61L15/46 ,  B01J47/00 ,  C08J5/22 ,  C25B13/04 ,  D21H17/42

    CPC分类号： A61L15/46 ,  A24B3/14 ,  A24D3/12 ,  A61L2300/00 ,  B01J47/018 ,  C08J5/2212 ,  C08J2301/00 ,  C25B13/04 ,  D21H17/42

    摘要： Ion-exchange paper in which at least 10 per cent, based on the dry weight of pulp, of discrete, preferably pulverized, particles of one or more ion-exchange resins passing U.S. Standard sieve No. 50 are uniformly distributed (see Group VIII) can be used e.g. to remove acidic impurities from lubricating oils. Paper containing mixed particles of cation-and anion-exchange resins is particularly suitable for purifying water.ALSO:Ion-exchange paper in which at least 10 per cent, based on the dry weight of pulp, of discrete, preferably micropulverized, particles of one or more ion-exchange resins passing U.S. Standard Sieve No. 50 are uniformly distributed (see Group VIII), is used for wrapping and preserving foodstuffs, in filter tips and cartridges for cigarettes and tobacco pipes and in catamenial appliances. Anion-exchange and/or cation-exchange resins may be used. Suitable cation-exchange resins are the sulphonated copolymers of styrene and divinylbenzene and copolymers of methacrylic acid and divinylbenzene. The anion-exchange resin may be a copolymer of styrene and divinylbenzene having quaternary ammonium groups joined by means of methylene groups to the aromatic nuclei. Anion-exchange resins made by reacting diethylenetriamine with an insoluble copolymer of ethyl acrylate and divinylbenzene or by reacting trimethylamine with a chloromethylated copolymer of styrene and divinylbenzene may be used. Alum or sulphuric acid, fillers, dyes, pigments and wet-strength resins such as urea - formaldehyde and melamine - aldehyde resins may be incorporated in the paper pulp. The paper may be rendered greaseproof by parchmentizing.

    摘要翻译： 离子交换纸，其中至少10％，基于纸浆的干重，通过美国标准筛号50的一种或多种离子交换树脂的离散的，优选粉碎的颗粒的颗粒是均匀分布的（参见第VIII组） 可以使用例如 从润滑油中除去酸性杂质。 含有阳离子和阴离子交换树脂的混合颗粒的纸特别适用于净化水。等离子交换纸，其中至少10％，基于纸浆的干重，离散的，优选微粉碎的颗粒 或更多的通过美国标准筛50号的离子交换树脂均匀分布（参见第VIII组），用于包装和保存食品，用于香烟和烟草管道以及月经器具的过滤嘴和药筒中。 可以使用阴离子交换和/或阳离子交换树脂。 合适的阳离子交换树脂是苯乙烯和二乙烯基苯的磺化共聚物和甲基丙烯酸和二乙烯基苯的共聚物。 阴离子交换树脂可以是具有通过亚甲基连接到芳族核的季铵基的苯乙烯和二乙烯基苯的共聚物。 可以使用通过二亚乙基三胺与丙烯酸乙酯和二乙烯基苯的不溶性共聚物反应或通过使三甲胺与苯乙烯和二乙烯基苯的氯甲基化共聚物反应制备的阴离子交换树脂。 可将醛或硫酸，填料，染料，颜料和湿强度树脂如脲 - 甲醛和三聚氰胺 - 醛树脂掺入纸浆中。 纸张可以通过羊皮纸化来进行防油处理。