Process for the preparation of cationic paper sizing agents
    2.
    发明授权
    Process for the preparation of cationic paper sizing agents 失效
    制备阳离子纸上浆剂的方法

    公开(公告)号:US4065608A

    公开(公告)日:1977-12-27

    申请号:US730032

    申请日:1976-10-06

    CPC分类号: C08F8/44

    摘要: A process for the preparation of cationic paper sizing agents is disclosed. A copolymer of maleic anhydride and an .alpha.-olefin containing 10 to 26 carbon atoms is first reacted with from 0.1 to 1.0 mol, per mol of anhydride, of a monoprimary/monotertiary alkylene diamine, subsequently reacting the copolymer with more than 0.2 and less than 1.5 mols, per mol of anhydride, of a low-molecular weight polyamine, with the proviso that the total amount of amine reacted be less than 2.0 mols per mol of anhydride, and converting the resultant product to a salt.

    摘要翻译: 公开了一种制备阳离子纸上胶剂的方法。 首先使马来酸酐与含有10-26个碳原子的α-烯烃的共聚物与每摩尔酸酐为0.1-1.0摩尔的单原子/一元亚烷基二胺反应,随后使共聚物反应大于0.2并小于 1.5摩尔,每摩尔酐,低分子量多胺,条件是反应的胺的总量小于2.0摩尔/摩尔酐,并将所得产物转化成盐。

    Process for the de-inking of printed waste paper
    3.
    发明授权
    Process for the de-inking of printed waste paper 失效
    印刷废纸脱墨的工艺

    公开(公告)号:US4586982A

    公开(公告)日:1986-05-06

    申请号:US644655

    申请日:1984-08-27

    IPC分类号: D21C5/02

    CPC分类号: D21C5/027 Y02W30/648

    摘要: There is disclosed an improvement to the process for the de-inking of printed waste paper which comprises (1) treating the waste paper in a pulper at an alkaline pH with alkali silicate, an oxidatively active bleaching agent, one or more acid components selected from the group consisting of fatty acids and resinic acids containing more than 10 carbon atoms, and mixtures thereof, and a dispersing agent, and (2) separating the detached printing ink particles from the fiber suspension by either flotation, washing, or a combination thereof. The improvement comprises employing the acid and the dispersing agent in the form of an oil-in-water emulsion.

    摘要翻译: 公开了对印刷废纸的脱墨方法的改进,其包括(1)用碱性硅酸盐,氧化活性漂白剂,一种或多种酸成分在碱性pH下处理碎纸机中的废纸, 由脂肪酸和含有10个以上碳原子的树脂酸组成的组,以及它们的混合物和分散剂,和(2)通过浮选,洗涤或其组合将脱模的印刷油墨颗粒与纤维悬浮液分离。 该改进包括以水包油乳液的形式使用酸和分散剂。

    Fuel briquettes
    4.
    发明授权
    Fuel briquettes 失效
    燃煤压块

    公开(公告)号:US4863485A

    公开(公告)日:1989-09-05

    申请号:US287643

    申请日:1988-12-20

    IPC分类号: C10L5/14 C10L5/10 C10L9/10

    CPC分类号: C10L5/10 Y02E50/30

    摘要: The process is disclosed for the manufacture of briquettes in which an essentially solid fuel material such as hard coal, coke, soft coal, charcoal or more particularly, anthracite, and other coals of low volatility are mixed in the presence of polyvinyl alcohol and calcium oxide and/or magnesium oxide, as well as at least 1 percent by weight of water, and formed into briquettes. The calcium oxide is preferably caustic lime. The polyvinyl alcohol is preferably applied as an aqueous solution. The briquettes so formed are characterized by high initial crush resistance, i.e. the solidity shortly after the briquetting process, by high abrasion resistance, easy handling and, in the event that anthracite is employed, a carbon tar index of less than 50. The waste gases emitted during the burning of these briquettes have a distinctly reduced SO.sub.2 content.

    摘要翻译: 公开了用于制造压块的方法,其中在聚乙烯醇和氧化钙的存在下将基本上固体的燃料材料如硬煤,焦炭,软煤,木炭或更特别是无烟煤和其他低挥发性煤混合 和/或氧化镁,以及至少1重量%的水,并形成团块。 氧化钙优选为苛性石灰。 聚乙烯醇优选作为水溶液使用。 如此形成的团块的特征在于具有高的初始抗压性,即压块过程后不久的坚固性,高耐磨性,易于处理,并且在使用无烟煤的情况下,碳焦油指数小于50.废气 在这些团块燃烧过程中排出的SO2含量明显降低。

    Fuel briquets
    5.
    发明授权
    Fuel briquets 失效
    燃料砖

    公开(公告)号:US4586936A

    公开(公告)日:1986-05-06

    申请号:US546570

    申请日:1983-10-28

    IPC分类号: C08G18/08 C10L5/10 C10L5/00

    摘要: Fuel briquettes containing binding agents and additives, obtained by briquetting 80-99% by weight of an essentially solid fuel, 0.1-19% by weight of a natural or synthetic binding agent and 0.1-10% of a cationic polyurethane obtained by a monomeric aliphatic dihydroxy compound, which has at one of its two atoms bonding the two dihydroxy groups an aliphatic residue with minimum 10 carbon atoms, being reacted with a polyisocyanate and an aliphatic monomeric diol containing tertiary nitrogen which in the obtaining of the cationic polyurethane is rearranged into its ammonium phase, or obtained by reacting the monomeric aliphatic dihydroxy compound with a polyisocyanate and an appropriate aliphatic monomeric diol in which the nitrogen is present already in its ammonium state. The briquets are obtained by commingling and forming into briquets, in a known manner, the mentioned components. Preferred embodiments include use of charcoal or brown coal as solid fuel; use of brown coal containing 5-10% of a natural constituent as binding agent; the natural constituent being bitumen; colding mixing the comminuted fuel, binding agent and cationic polyurethane; and use of polyvinyl alcohol as synthetic binding agent, particularly having a viscosity from 0.003 Pas to 0.07 Pas, and particularly with a weight ratio of cationic polyurethane to polyvinyl alcohol from 1:3 to 3:1.

    摘要翻译: 含有粘结剂和添加剂的燃料团块通过压块80-99重量%的基本固体燃料,0.1-19重量%的天然或合成粘合剂和0.1-10重量%的由单体脂族 二羟基化合物,其两个原子中的一个原子键合具有最少10个碳原子的脂族残基,与多异氰酸酯和含有叔氮的脂族单体二醇反应,在获得阳离子聚氨酯中将其重排为其 铵相,或通过使单体脂族二羟基化合物与其中氮存在于其铵状态的多异氰酸酯和适当的脂族单体二醇反应获得。 通过以已知的方式将所述组分混合并成型成砖,得到这种砖块。 优选实施方案包括使用炭或褐煤作为固体燃料; 使用含有5-10%天然成分的褐煤作为粘合剂; 天然成分是沥青; 将粉碎的燃料,粘合剂和阳离子聚氨酯混合混合; 并使用聚乙烯醇作为合成粘合剂,特别是粘度为0.003Pa·s〜0.07Pa·s,特别是阳离子聚氨酯与聚乙烯醇的重量比为1:3〜3:1。

    Fuel briquets
    6.
    发明授权
    Fuel briquets 失效
    燃料砖

    公开(公告)号:US4369042A

    公开(公告)日:1983-01-18

    申请号:US289527

    申请日:1981-08-03

    IPC分类号: C10L5/14 C10L5/16 C10L5/10

    CPC分类号: C10L5/14 Y02E50/30

    摘要: Fuel briquets containing binding agents and additives are obtained by briquetting of approximately 80 to 99% by weight of an essentially solid fuel, approximately 0.1 to 19% by weight of a natural or synthetic binding agent and approximately 0.1 to 10% by weight, calculated on a dry basis, of a cationic resin obtained by reacting polyamines with halohydrin.

    摘要翻译: 含有粘合剂和添加剂的燃料砖通过压块约80至99重量%的基本固体燃料,约0.1至19重量%的天然或合成粘合剂和约0.1至10重量% 以干基计,通过使多胺与卤代醇反应获得的阳离子树脂。