-
公开(公告)号：US11987906B2
公开(公告)日：2024-05-21
申请号：US16962498
申请日：2019-01-14
摘要： A method of recycling a mixed textile, wherein the method comprises: i) supplying the mixed textile, wherein the mixed textile comprises cellulosic fibers and synthetic fibers, wherein the synthetic fibers comprise at least one synthetic plastic, ii) at least partially depleting the synthetic plastic from the cellulose, and iii) further processing the depleted mixed textile after depleting.
-
公开(公告)号：US20230125354A1
公开(公告)日：2023-04-27
申请号：US17784508
申请日：2020-12-03
摘要： What is shown is a method for the recovery of raw materials from blended textile wastes, which includes the following steps in the given order: a) providing blended textile waste that includes at least a cellulose component and at least a polyester component, b) treating the blended textile waste in an aqueous treatment solution in order to depolymerize the polyester component and dissolve it in the treatment solution, c) separating the cellulose component from the treatment solution and recovering a cellulose raw material, d) filtering the treatment solution in order to remove foreign substances, particularly dyes and metal ions, from the treatment solution, and e) precipitating terephthalic acid from the treatment solution, separating the precipitated terephthalic acid, and recovering a terephthalic-acid-including polyester raw material. In order to, within the scope of the mentioned method, enable the recovery of raw materials with an increased level of purity, it is proposed that filtering the treatment solution in step d) should at least comprise a filtration by an adsorbent filter medium.
-
3.发明授权公开(公告)号：US11976417B2
公开(公告)日：2024-05-07
申请号：US17416348
申请日：2019-10-24
CPC分类号： D21C5/00 , B29B17/02 , D01G11/04 , D21C5/022 , D21H11/14 , D10B2201/02 , D10B2331/04
摘要： A recycled cellulose raw material and a method for recycling a cellulose raw material from blended textile waste with high reliability and yielding high raw material quality is shown, the method comprising the steps in the given order: providing the blended textile waste containing at least one cellulose component and at least one synthetic polymer component, treating the blended textile waste in a non-oxidizing aqueous treatment medium in order to degrade the at least one synthetic polymer component, whereby the treatment is carried out at a temperature between 100° C. and 200° C., and obtaining the recycled cellulose raw material from the treated blended textile waste.
-
公开(公告)号：US11828005B2
公开(公告)日：2023-11-28
申请号：US18073941
申请日：2022-12-02
IPC分类号： B02C18/00 , B29B17/02 , B29B17/04 , D01D5/06 , D01F2/02 , D06L4/00 , D01F13/02 , C08B16/00 , C08J11/08 , D01F2/06 , B29K105/26
CPC分类号： D01F13/02 , B02C18/0084 , B02C18/0092 , C08B16/00 , C08J11/08 , D01D5/06 , D01F2/02 , D01F2/06 , B29B2017/0217 , B29B2017/0224 , B29B2017/0231 , B29B2017/0234 , B29B2017/0244 , B29B2017/0248 , B29B2017/0255 , B29B2017/0265 , B29B2017/0272 , B29B2017/044 , B29B2017/0424 , B29B2017/0468 , B29B2017/0476 , B29K2105/26
摘要： A method of producing a chemical pulp from a textile material which comprises cellulose for manufacturing regenerated cellulosic molded bodies, wherein in the method the textile material is comminuted, at least a part of non-fiber-constituents of the comminuted textile material is separated from fiber-constituents of the comminuted textile material, at least a part of non-cellulosic fibers of the fiber-constituents is mechanically separated from cellulosic fibers of the fiber-constituents, at least a further part of the non-cellulosic fibers is chemically separated from the cellulosic fibers, and producing regenerated molded bodies from the chemical pulp based on the cellulosic fibers after mechanically separating and chemically separating.
-
5.发明公开公开(公告)号：US20240240399A1
公开(公告)日：2024-07-18
申请号：US18622076
申请日：2024-03-29
CPC分类号： D21C5/00 , B29B17/02 , D01G11/04 , D21C5/022 , D21H11/14 , D10B2201/02 , D10B2331/04
摘要： A recycled cellulose raw material and a method for recycling a cellulose raw material from blended textile waste with high reliability and yielding high raw material quality is shown, the method comprising the steps in the given order: providing the blended textile waste containing at least one cellulose component and at least one synthetic polymer component, treating the blended textile waste in a non-oxidizing aqueous treatment medium in order to degrade the at least one synthetic polymer component, whereby the treatment is carried out at a temperature between 100° C. and 200° C., and obtaining the recycled cellulose raw material from the treated blended textile waste.
-
公开(公告)号：US11519104B2
公开(公告)日：2022-12-06
申请号：US16962504
申请日：2019-01-14
IPC分类号： B02C18/00 , B03D1/02 , B29B17/02 , B29B17/04 , D06L4/00 , D01F13/02 , C08B16/00 , C08J11/08 , D01F2/06 , D01D5/06 , D01F2/02 , B29K105/26
摘要： Method of recycling a textile material which comprises cellulose for manufacturing regenerated cellulosic molded bodies, wherein in the method the textile material is comminuted, at least a part of non-fiber-constituents of the comminuted textile material is separated from fiber-constituents of the comminuted textile material, at least a part of non-cellulosic fibers of the fiber-constituents is mechanically separated from cellulosic fibers of the fiber-constituents, at least a further part of the non-cellulosic fibers is chemically separated from the cellulosic fibers, and the molded bodies are generated based on the cellulosic fibers after mechanically separating and chemically separating.
-
公开(公告)号：US11321658B2
公开(公告)日：2022-05-03
申请号：US16962503
申请日：2019-01-14
摘要： Method of identifying a product which comprises cellulose, wherein in the method a data set is determined which is indicative for multiple constituents of the product or a preform of the product, and the data set which is correlated with the product or the preform is stored in a database.
-
公开(公告)号：US20210062417A1
公开(公告)日：2021-03-04
申请号：US16961732
申请日：2019-01-14
摘要： A process (1, 101, 201) for separating a fibrous target component (21) from textile waste (2, 5) is shown, said textile waste (2, 5) containing the target component (21) and at least one ancillary component (22), whereby the target component (21) consists of water-swellable textile fibers (51) with a density higher than the density of water, the process (1, 101, 201) comprising the steps: a) dispersing the comminuted textile waste (5) in an aqueous solution (7) to obtain a suspension (8) containing the textile waste (5), and b) separating the dispersed textile waste (5) into a high-density target fraction (81) comprising the target component (21), and a low-density residual fraction (82) comprising the at least one ancillary component (22), according to the respective density of said components (21, 22). In order to provide a reliable, fast process for the separation of water-swellable fibers from other textile fibers which are similar in density, it is proposed, that the aqueous solution (7) is an alkaline aqueous solution (7) and the target component fibers (51) are swelled in the alkaline aqueous solution (7) prior to step b), thereby increasing the density and weight of said target component (21) relative to the density and weight of the ancillary component (22).
-
公开(公告)号：US11952714B2
公开(公告)日：2024-04-09
申请号：US16961732
申请日：2019-01-14
摘要： A process (1, 101, 201) for separating a fibrous target component (21) from textile waste (2, 5) is shown, said textile waste (2, 5) containing the target component (21) and at least one ancillary component (22), whereby the target component (21) consists of water-swellable textile fibers (51) with a density higher than the density of water, the process (1, 101, 201) comprising the steps: a) dispersing the comminuted textile waste (5) in an aqueous solution (7) to obtain a suspension (8) containing the textile waste (5), and b) separating the dispersed textile waste (5) into a high-density target fraction (81) comprising the target component (21), and a low-density residual fraction (82) comprising the at least one ancillary component (22), according to the respective density of said components (21, 22). In order to provide a reliable, fast process for the separation of water-swellable fibers from other textile fibers which are similar in density, it is proposed, that the aqueous solution (7) is an alkaline aqueous solution (7) and the target component fibers (51) are swelled in the alkaline aqueous solution (7) prior to step b), thereby increasing the density and weight of said target component (21) relative to the density and weight of the ancillary component (22).
-
公开(公告)号：US20230025524A1
公开(公告)日：2023-01-26
申请号：US17784520
申请日：2020-12-03
摘要： The invention relates to a method for the treatment and utilization of waste liquor containing at least polyester degradation products and originating from an alkaline pulping process for the extraction of cellulose raw material from blended textile waste which contains at least a cellulose component and a polyester component. In order to make the method environmentally friendlier and more resource-efficient, it is proposed that the method comprises the following steps: the evaporation of water from the waste liquor in order to precipitate the polyester degradation product from the waste liquor and to obtain a two-phase mixture having an aqueous phase and a solid phase including the polyester degradation product, b) the separation of the solid phase from the liquid phase, and c) the thermal/energetic utilization of the solid phase.
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.019 秒)
