Treatment of solid containing material derived from effluent or waste
from wastepaper treating process
    1.
    发明授权
    Treatment of solid containing material derived from effluent or waste from wastepaper treating process 失效
    从废纸处理过程中处理来自废水或废物的含固体物质

    公开(公告)号:US6063237A

    公开(公告)日:2000-05-16

    申请号:US750481

    申请日:1997-02-27

    IPC分类号: C01F11/18 D21H17/67 D21C11/00

    摘要: A method of treating solid-containing material contained in or produced from an effluent or waste from a process for the treating of waste paper. The solid-containing material includes constituents of the waste paper and organic material including cellulose fibers and inorganic particulate material including calcium carbonate and other inorganic particulate material included in the waste paper. The solid-containing material is subjected to a heat treatment that incinerates the organic material present and forms from the inorganic particulate material present a calcined product including calcium oxide from thermal decomposition of calcium carbonate. The calcined product is formed into an aqueous suspension wherein calcium oxide is converted to calcium hydroxide. The calcined product in the suspension is comminuted and a reagent is added to the suspension to form a salt-forming anionic species to form an insoluble calcium salt precipitate mixed or aggregated with other inorganic particulate material derived from the waste paper constituents.

    摘要翻译: PCT No.PCT / GB96 / 00884 Sec。 371日期1997年2月27日 102(e)日期1997年2月27日PCT提交1996年4月11日PCT公布。 公开号WO96 / 32354 日期1996年10月17日一种处理含废弃物废物处理过程中流出物或废物中含有的含固体物质的方法。 含固体材料包括废纸的成分和包括纤维素纤维和包括在废纸中的碳酸钙和其它无机颗粒材料的无机颗粒材料的有机材料。 对含固体材料进行热处理,其对存在的有机材料进行焚烧,并且从无机颗粒材料形成含有来自碳酸钙热分解的氧化钙的煅烧产物。 煅烧产物形成水性悬浮液,其中将氧化钙转化为氢氧化钙。 将悬浮液中的煅烧产物粉碎并将试剂加入到悬浮液中以形成形成盐的阴离子物质,以形成与源自废纸成分的其它无机颗粒材料混合或聚集的不溶性钙盐沉淀物。

    Treatment of solid containing material derived from effluent
    2.
    发明授权
    Treatment of solid containing material derived from effluent 有权
    处理从流出物得到的含固体物质

    公开(公告)号:US07300539B2

    公开(公告)日:2007-11-27

    申请号:US10300913

    申请日:2002-11-21

    IPC分类号: D21B1/08

    摘要: A method of treating solid containing material derived from effluent or sludge from a plant for deinking paper, the material containing calcium in the form of one or more insoluble calcium compounds, the method including the steps of treating the material with an acid to cause dissolution of the calcium thereby forming a calcium ion-containing solution in which insoluble solids are suspended, separating the solution from the insoluble solids and incinerating the separated solids. The solution containing calcium ions may be treated by adding one or more reagents to form a calcium compound precipitate, eg calcium carbonate. The particulate solids produced following the incineration step and following the precipitate formation may be employed as pigments or fillers in paper making or paper coating.

    摘要翻译: 一种处理来自植物的流出物或污泥的固体含量物质的脱墨纸的方法,所述材料含有一种或多种不溶性钙化合物形式的钙,所述方法包括以下步骤:用酸处理材料以引起溶解 由此形成其中悬浮有不溶性固体的含钙离子的溶液,将溶液与不溶性固体分离并焚化分离的固体。 含有钙离子的溶液可以通过加入一种或多种试剂来形成钙化合物沉淀,例如碳酸钙来处理。 在焚烧步骤之后产生并在沉淀物形成之后产生的颗粒状固体可用作造纸或纸张涂布中的颜料或填料。

    Treatment of solid containing material derived from effluent
    3.
    发明授权
    Treatment of solid containing material derived from effluent 失效
    处理从流出物得到的含固体物质

    公开(公告)号:US06425973B1

    公开(公告)日:2002-07-30

    申请号:US09148685

    申请日:2000-11-22

    IPC分类号: D21B108

    CPC分类号: D21H17/675 C01F11/18

    摘要: A method of treating solid containing material derived from effluent or sludge from a plant for de-inking paper, the material containing calcium in the form of one or more insoluble calcium compounds, the method including the steps of treating the material with an acid to cause dissolution of the calcium thereby forming a calcium ion-containing solution in which insoluble solids are suspended, separating the solution from the insoluble solids and incinerating the separated solids. The solution containing calcium ions may be treated by adding one or more reagents to form a calcium compound precipitate, eg calcium carbonate. The particulate solids produced following the incineration step and following the precipitate formation may be employed as pigments or fillers in paper making or paper coating.

    摘要翻译: 一种处理来源于来自植物的流出物或污泥的固体含量物质的方法,所述设备用于脱墨纸,所述材料含有一种或多种不溶性钙化合物形式的钙,所述方法包括以酸处理所述材料以引起 钙的溶解,从而形成其中悬浮有不溶性固体的含钙离子的溶液,将溶液与不溶性固体分离并焚化分离的固体。 含有钙离子的溶液可以通过加入一种或多种试剂来形成钙化合物沉淀,例如碳酸钙来处理。 在焚烧步骤之后产生并在沉淀物形成之后产生的颗粒状固体可用作造纸或纸张涂布中的颜料或填料。

    Pigment materials and their preparation and use
    6.
    发明授权
    Pigment materials and their preparation and use 失效
    颜料的制备和使用

    公开(公告)号:US06579410B1

    公开(公告)日:2003-06-17

    申请号:US08957280

    申请日:1997-10-24

    IPC分类号: D21C900

    摘要: A new composite material which is useful as a pigment in paper making or paper coating is produced by precipitating a white insoluble pigment compound, eg calcium carbonate, in an aqueous suspension containing a mixture of fine particulate material eg titanium dioxide particles and fibers, eg cellulosic fibers. These suspended solids in the mixture are derived from separate stocks and added together to produce the composite pigment material. The new material is a bonded matrix of the fibers and the white pigment compound having particles of the fine particulate material, eg TiO2, dispersed and bonded within the matrix. The new material may exist in the form of particles in dry or wet form which may be further treated in a known way prior to use in paper making or paper coating. Use of the new material allows expensive fine particulate material such as TiO2 particles to be better retained in a paper making composition whilst at the same time avoiding the known problem of agglomeration or ‘crowding’ of the fine particles which is known to affect adversely the optical properties of the composition produced using the fine particles.

    摘要翻译: 在造纸或纸张涂布中用作颜料的新型复合材料通过在含有细颗粒材料(例如二氧化钛颗粒和纤维)的混合物的水性悬浮液中沉淀出白色不溶性颜料化合物,例如碳酸钙,例如纤维素 纤维。 混合物中的这些悬浮固体衍生自单独的原料并加入到一起以产生复合颜料。 新材料是纤维的键合基质和具有细颗粒材料(例如TiO 2)的颗粒的白色颜料化合物,其分散并结合在基质内。 新材料可以干燥或湿形式的颗粒形式存在,在用于造纸或纸张涂布之前可以以已知的方式进一步处理。 使用新材料可使昂贵的细颗粒材料如TiO 2颗粒更好地保留在造纸组合物中,同时避免已知的已知会对光学不利地影响的细颗粒的聚集或“拥挤”的已知问题 使用细颗粒产生的组合物的性质。

    Treatment of waste paper
    7.
    发明授权
    Treatment of waste paper 失效
    处理废纸

    公开(公告)号:US5683590A

    公开(公告)日:1997-11-04

    申请号:US644554

    申请日:1996-05-10

    摘要: A process for recovering inorganic material from an effluent suspension produced in the treatment of waste paper. The effluent suspension, in the form of an aqueous suspension containing at least 2% by weight of dry solids, is contacted with an oxygen-containing gas at an elevated temperature, and at an elevated pressure sufficient to keep the water component of the sludge in the liquid phase, for a time sufficient to effect substantially complete oxidation of the organic material in the suspension. The resulting product is dewatered and then resuspended in water, whereafter there is separated from the suspension water containing fine carbon particles in suspension to leave the desired inorganic material.

    摘要翻译: 从处理废纸中产生的流出物悬浮液中回收无机材料的方法。 以含有至少2重量%干固体的水悬浮液的形式的流出物悬浮液在升高的温度下与含氧气体接触,并且在足以将污泥的水分含量保持在的高压下 液相,足以实现悬浮液中有机材料的基本上完全氧化的时间。 将所得产物脱水,然后重悬浮在水中,然后与悬浮液中含有细小碳颗粒的悬浮水分离出留下所需的无机材料。

    Treatment of solid containing material derived from effluent of
wastepaper treating plant
    9.
    发明授权
    Treatment of solid containing material derived from effluent of wastepaper treating plant 失效
    处理来自废纸处理厂废水的固体含量物质

    公开(公告)号:US5846378A

    公开(公告)日:1998-12-08

    申请号:US822420

    申请日:1997-03-21

    摘要: A method is described for the treatment of a solid containing material obtained from effluent from an industrial plant or process, eg. a plant for the de-inking of waste paper. Such effluent comprises an aqueous suspension of solids comprising organic material and inorganic particulate material. The inorganic particulate material contains a substantial amount of calcium carbonate and is likely also to contain kaolin or metakaolin. The solids may also contain carbon particles. The method includes subjecting the solid containing material to a heat treatment process such that the temperature is controlled to be maintained in the range 600.degree. C. to 800.degree. C. preferably 600.degree. C. to 750.degree. C., to cause burning of the organic material without decomposition of more than about 50% by weight, preferably not more than about 10% by weight, of the calcium carbonate present to produce a particulate calcium carbonate-containing inorganic material substantially free of organic material. The particulate product is preferably white and useful as a pigment or filler material, eg. in paper making.

    摘要翻译: 描述了一种用于处理从工厂或过程的流出物获得的含固体材料的方法,例如, 用于废纸脱墨的设备。 这种流出物包含含有机材料和无机颗粒材料的固体含水悬浮液。 无机颗粒材料含有大量的碳酸钙,并且也可能含有高岭土或偏高岭土。 固体也可以含有碳颗粒。 该方法包括使含固体材料经受热处理过程,使得将温度控制在600℃至800℃,优选600℃至750℃的温度范围内,从而引起燃烧 有机材料不分解大于约50重量%,优选不超过约10重量%的碳酸钙,以产生基本上不含有机材料的含碳酸钙颗粒的无机材料。 颗粒产物优选是白色的,可用作颜料或填料,例如。 在造纸。