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    2,2-dibromo-3-nitrilopropionamide and hexachlorodimethylsulfone as a slime control composition
    27.
    发明授权
    2,2-dibromo-3-nitrilopropionamide and hexachlorodimethylsulfone as a slime control composition 失效
    2,2-DIBROMO-3-NITRILOPROPIONAMIDE和HEXACHLORFETETHYLSULFONE作为SLIME控制组合物

    公开(公告)号：US3896231A

    公开(公告)日：1975-07-22

    申请号：US37458273

    申请日：1973-06-28

    Applicant: BETZ LABORATORIES

    Inventor： SHEMA BERNARD F ,  BRINK JR ROBERT H ,  SWERED PAUL

    IPC: A01N47/02 ,  C02F1/50 ,  A01N9/06

    CPC classification number: C02F1/50 ,  A01N47/02 ,  A01N37/34 ,  A01N2300/00

    Abstract: The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water and, in particular, water used for industrial purposes; for example, in the manufacture of pulp paper, in the manufacture of paper, in cooling water systems and in effluent water treatment. The novel processes and compositions of the present invention are processes or mixtures which show unexpected synergistic activity against microorganisms, including bacteria, fungi and algae, which produce slime in aqueous systems or bodies which are objectionable from either an operational or aesthetic point of view. Specifically the invention is directed to the use of compositions comprising a combination of 2-2-dibromo-3nitrilopropionamide and hexachlorodimethyl sulfone.

    Beneficiation of lignin solutions and pulp mill wastes
    28.
    发明授权
    Beneficiation of lignin solutions and pulp mill wastes 失效
    木质素溶液和纸浆厂废物的利用

    公开(公告)号：US3895996A

    公开(公告)日：1975-07-22

    申请号：US37288973

    申请日：1973-06-22

    Applicant: BETZ LABORATORIES

    Inventor： LANGE K ROBERT ,  STERN ARTHUR M ,  GASNER LAWRENCE L ,  HSU YUAN TSUN

    IPC: C02F5/10 ,  D21C11/00 ,  C07G1/00

    CPC classification number: C02F5/10

    Abstract: The present disclosure is directed primarily to a method of producing valuable products from aqueous solutions of lignin and lignin derivatives. Aqueous solutions of the lignin and derivatives thereof are available as commercial solutions, can be made from solids or semi-solid mixtures thereof or are available as waste effluents from pulp producing mills. With respect to the latter source, the inventive method not only permits the obtention of valuable products therefrom, but also reduces the amount of non-biodegradable and toxic materials normally contained therein to be eliminated prior to discharge. In addition, the method reduces the color of the final discharge. Basically, the method entails the addition to the lignin or lignin derivative solution of a polyvalent metal salt, the cation of which will react with a portion of the lignin solution to produce a water-insoluble precipitate, acidification of the precipitate and final treatment with a basic solution. The final products possess utilities as scale and precipitate agents for aqueous systems, namely steam producing and cooling water systems.

    Abstract translation: 本公开主要涉及从木质素和木质素衍生物的水溶液中生产有价值的产物的方法。 木质素及其衍生物的水溶液可作为商业溶液获得，可以由其固体或半固体混合物制备，或作为废纸浆从纸浆生产厂获得。

    Method for scrubbing gases derived from basic oxygen furnaces
    29.
    发明授权
    Method for scrubbing gases derived from basic oxygen furnaces 失效
    用于洗涤由碱性氧气炉产生的气体的方法

    公开(公告)号：US3887340A

    公开(公告)日：1975-06-03

    申请号：US50157474

    申请日：1974-08-29

    Applicant: BETZ LABORATORIES

    Inventor： HSU YUAN TSUN ,  LANGE K ROBERT

    IPC: B01D47/00 ,  B01D53/68 ,  B01D47/06

    CPC classification number: B01D47/00 ,  B01D53/68 ,  Y02P70/34

    Abstract: The present invention is directed to a method of scrubbing waste flue gases derived from basic oxygen furnace steel producing operations. The invention specifically calls for the spraying of the flue gases with an aqueous medium containing the combination comprising in a weight ratio basis of 1:10 to 10:1 of a substantially linear watersoluble sulfonated polystyrene and an organo-phosphonic acid derivative having the structural formula (X)2N-R-N(X)2 where R is a lower alkyl of from 1 to 7 carbon atoms, X is hydrogen or the group - CH2PO3M2, where M is a watersoluble cation, the compound being further characterized in that at least one but preferably all X''s are - CH2PO3M2. In certain instances it is desirable to use in conjunction with the invention a water-soluble lignosulfonate.

    Abstract translation: 本发明涉及一种洗涤源自碱性氧气炉钢生产操作的废烟气的方法。 本发明特别要求用含有基本上为1:10至10:1重量比的基本上直链的水溶性磺化聚苯乙烯和具有结构式的有机膦酸衍生物的含水介质的含水介质喷雾烟道气 （X）2N-RN（X）2其中R是1至7个碳原子的低级烷基，X是氢或基团-CH 2 PO 3 M 2，其中M是水溶性阳离子，该化合物的进一步特征在于至少一种 但优选所有X是-CH 2 PO 3 M 2。 在某些情况下，期望与本发明结合使用水溶性木素磺酸盐。

    Alumina as a cold-end additive
    30.
    发明授权
    Alumina as a cold-end additive 失效
    氧化铝作为冷端添加剂

    公开(公告)号：US3886261A

    公开(公告)日：1975-05-27

    申请号：US41237673

    申请日：1973-11-01

    Applicant: BETZ LABORATORIES

    Inventor： LIBUTTI BRUCE L

    IPC: B01D53/50 ,  C23F15/00 ,  C01B17/00 ,  B01J9/04 ,  B01J9/08 ,  B01J9/12 ,  B01J9/16 ,  B01J9/20

    CPC classification number: B01D53/508 ,  C23F15/00

    Abstract: The present invention is directed to a method of controlling the condensation of sulfur trioxide in flue gases to thereby inhibit the corrosion of metallic parts because of the sulfuric acid inherently formed. Basically, the requirements on the addition of particulate alumina (Al2O3) to the flue gas at a place where it is experiencing turbulence, and where its temperature is below 1000* F, and preferably within the range of 450* F. to 650* F.

    Abstract translation: 本发明涉及一种控制烟道气中三氧化硫冷凝的方法，从而由于硫酸本身形成而抑制金属部件的腐蚀。 基本上，要求在其经受湍流的地方向烟道气中加入颗粒状氧化铝（Al2O3），其温度低于1000°F，优选在450°F至650°F范围内 。

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