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公开(公告)号：US20090095660A1
公开(公告)日：2009-04-16
申请号：US12250200
申请日：2008-10-13
CPC分类号： B03D1/02 , B03D1/008 , B03D1/1406 , B03D1/24 , B03D2203/005
摘要： A process is described for the separation of fluorinated plastic particles from a mixture of solid particles of similar specific gravity. The process comprises mixing the particles with water, adding air to create bubbles, and generating two or more product streams, one of which floats and the other which sinks. The floating stream is enriched in fluoropolymer particles. Per pass yield and selectivity of fluorinated plastics are enhanced by the addition of a carboxylic acid to the froth flotation medium.
摘要翻译： 描述了从具有相似比重的固体颗粒的混合物中分离氟化塑料颗粒的方法。 该方法包括将颗粒与水混合，加入空气以产生气泡，并产生两个或多个产物流，其中一个产生流动而另一个产生流动。 浮游物流富含含氟聚合物颗粒。 通过向泡沫浮选介质中加入羧酸来提高氟化塑料的通过率和选择性。
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公开(公告)号：US07497335B2
公开(公告)日：2009-03-03
申请号：US11301003
申请日：2005-12-12
IPC分类号： B03B5/00
CPC分类号： B29B17/02 , B03B5/28 , B03B5/442 , B03B9/061 , B29B17/04 , B29B17/0412 , B29B2017/0015 , B29B2017/0203 , B29B2017/0224 , B29B2017/0244 , B29K2023/06 , B29K2023/12 , B29K2027/06 , B29K2069/00 , B29K2075/00 , B29K2077/00 , B29K2105/065 , B29K2705/00 , B29K2705/02 , B29K2705/06 , B29K2705/08 , B29K2705/10 , B29K2705/12 , B29K2711/12 , B29K2711/14 , B29L2009/00 , B29L2031/10 , B29L2031/265 , B29L2031/3005 , B29L2031/302 , B29L2031/3044 , B29L2031/3055 , B29L2031/3462 , B29L2031/707 , B29L2031/712 , B29L2031/7322 , B29L2031/7544 , Y02W30/523 , Y02W30/524 , Y02W30/622 , Y02W30/625
摘要： Hydrogravity separation of a multiple domain solid feedstock is disclosed which comprises granulating the feedstock to produce particles each of substantially a single domain, with each type of particle having a different density. The particles are slurried into a suitable fluid. A dispersion mixer having a high shear and/or turbulent zone is utilized to disperse agglomerated particles and a quiescent hydrogravity tank is utilized to effect binary separation of the mixture of particles into a stream with a higher average specific gravity, and a stream with a lower average specific gravity. A high degree of product purity is obtained by feeding one or both of the initial product streams to a collection of dispersion mixer/hydrogravity tank units using a fluid of substantially the same specific gravity.
摘要翻译： 公开了多结构域固体原料的水力重分离，其包括造粒原料以产生基本上单个结构域的颗粒，每种类型的颗粒具有不同的密度。 将颗粒浆化成合适的流体。 使用具有高剪切和/或湍流区域的分散混合器来分散附聚颗粒，并且使用静态水力重力槽来实现颗粒混合物二次分离成具有较高平均比重的流和具有较低平均比重的流 平均比重。 通过使用基本上相同比重的流体将一种或两种初始产物流进料到分散混合器/水力重力罐单元的集合中来获得高度的产品纯度。
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公开(公告)号：US20090065404A1
公开(公告)日：2009-03-12
申请号：US12264977
申请日：2008-11-05
CPC分类号： B03B5/28 , B03B5/442 , B03B9/061 , B03B2009/068 , B29B17/02 , B29B17/04 , B29B2017/0015 , B29B2017/0203 , B29B2017/0248 , B29K2021/00 , B29K2023/06 , B29K2025/00 , B29K2027/06 , B29K2055/02 , B29K2067/00 , B29K2069/00 , B29K2077/00 , B29K2705/00 , Y02W30/524 , Y02W30/622 , Y02W30/625
摘要： A process for the separation of a multiple domain solid feedstock such as that derived from ASR, WSR, and/or ESR is disclosed which comprises granulating the feedstock to produce particles each of substantially a single domain, with each type of particle having a different density. The particles are introduced into a suitable aqueous salt solution. Aqueous salt solutions containing cations comprising sodium, calcium and ammonium, and anions comprising nitrate, bromide, and chloride are useful. A dispersion mixer having a high shear and/or turbulent zone is utilized to disperse agglomerated particles and a quiescent hydrogravity tank is utilized to effect binary separation of the mixture of particles into a stream with a higher average specific gravity, and a stream with a lower average specific gravity. A higher degree of product purity can be obtained by subjecting either of the product streams from the first hydrogravity stage to additional stages of hydrogravity separation. Froth flotation may be used to further separate particles of similar specific gravity but different chemical composition.
摘要翻译： 公开了用于分离多结构域固体原料的方法，例如衍生自ASR，WSR和/或ESR的多结构域固体原料的方法，其包括将原料造粒以产生基本上单个结构域的颗粒，每种类型的颗粒具有不同的密度 。 将颗粒引入合适的盐水溶液中。 含有包含钠，钙和铵的阳离子的含水盐溶液以及包含硝酸盐，溴化物和氯化物的阴离子是有用的。 使用具有高剪切和/或湍流区域的分散混合器来分散附聚颗粒，并且使用静态水力重力槽来实现颗粒混合物二次分离成具有较高平均比重的流和具有较低平均比重的流 平均比重。 可以通过将来自第一水力重力阶段的产物流中的任何一种进入水力重分离的附加阶段来获得更高程度的产物纯度。 泡沫浮选可用于进一步分离类似比重但不同化学成分的颗粒。
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公开(公告)号：US08864057B2
公开(公告)日：2014-10-21
申请号：US13289703
申请日：2011-11-04
IPC分类号： B02C21/00 , B02C17/00 , C08J11/08 , C08J11/04 , D01B9/00 , B29B17/02 , B29K105/06 , B29L31/00
CPC分类号： B02C19/186 , B29B17/02 , B29B17/021 , B29B2017/0217 , B29B2017/0255 , B29K2067/003 , B29K2077/00 , B29K2105/06 , B29K2105/065 , B29K2105/26 , B29K2313/00 , B29L2031/7322 , C08G63/183 , C08G69/02 , C08J11/04 , C08J11/08 , D01B9/00 , D06N7/0071 , Y02P20/582 , Y02W30/622 , Y10S241/38 , Y10T225/12
摘要： Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
摘要翻译： 公开了生产适用于工业用途的清洁面纤维的地毯回收方法。 该方法允许从包括面纤维材料和背衬材料的地毯中回收面纤维材料，例如聚酯或聚酰胺，并且包括以下步骤：将地毯加热到低于面部熔点的温度 纤维材料，但高于背衬材料的初始热分解温度，时间和温度足以热分解，热解或氧化至少一部分背衬材料，使得背衬材料易碎，即更多 比未经处理的背部脆弱; 并将机械力施加到地毯上，以便从面纤维材料中释放易碎背衬材料。
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公开(公告)号：US20130112727A1
公开(公告)日：2013-05-09
申请号：US13289703
申请日：2011-11-04
IPC分类号： B26F3/00
CPC分类号： B02C19/186 , B29B17/02 , B29B17/021 , B29B2017/0217 , B29B2017/0255 , B29K2067/003 , B29K2077/00 , B29K2105/06 , B29K2105/065 , B29K2105/26 , B29K2313/00 , B29L2031/7322 , C08G63/183 , C08G69/02 , C08J11/04 , C08J11/08 , D01B9/00 , D06N7/0071 , Y02P20/582 , Y02W30/622 , Y10S241/38 , Y10T225/12
摘要： Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
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