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1. 发明授权

US10494448B2 Apparatus for continuously producing chemically-modified cellulose and method used in same 有权
公开(公告)号：US10494448B2
公开(公告)日：2019-12-03
申请号：US15762256
申请日：2016-09-30
申请人： THE JAPAN STEEL WORKS, LTD.
发明人： Satoru Nakamura , Ryo Ishiguro , Mariko Yoshioka , Yoshiyuki Kushizaki
IPC分类号： C08B17/02 , B01J19/20 , B01F7/00 , B01F15/00 , B01F15/02 , B29C48/03 , C08B3/12 , C08B3/16 , H01M2/16 , B29C48/505 , B82Y40/00 , B29K1/00
CPC分类号： C08B17/02 , B01F7/00416 , B01F15/00993 , B01F15/0235 , B01J19/20 , B29C48/03 , B29C48/505 , C08B3/12 , C08B3/16 , H01M2/16 , H01M2/1626 , B29K2001/08 , B82Y40/00
摘要： An apparatus for continuously producing chemically-modified cellulose, the apparatus having a first mechanism for transporting a fine-powder cellulose fiber starting material and a hydrophobizing chemical substance, a specific extruder, a solvent tank connected to the extruder, and a dryer connected to the solvent tank, and a method for continuously producing chemically-modified cellulose, the method having a step of washing, in the solvent tank, chemically-modified cellulose having been produced out of the fine-powder cellulose fiber starting material and the hydrophobizing chemical substance in the extruder, and then drying the chemically-modified cellulose in the dryer, in order to remove any unreacted hydrophobizing chemical substance.

2. 发明申请

US20190218312A1 CELLULOSE ACETATE AND PRODUCING METHOD THEREFOR 审中-公开
公开(公告)号：US20190218312A1
公开(公告)日：2019-07-18
申请号：US16327054
申请日：2017-08-21
申请人： DAICEL CORPORATION
发明人： Maiko TSUDA , Akihiro HIGUCHI
IPC分类号： C08B3/06 , C08B1/02 , C08B17/02
CPC分类号： C08B3/06 , B02C7/16 , B02C13/04 , C08B1/02 , C08B17/02
摘要： The purpose of the present invention is to provide a cellulose acetate which can be used to obtain an optical film having a very small amount of bright spot foreign matters, with excellent production efficiency, even when cellulose containing a small amount of hemicellulose components and having a high degree of crystallinity is used as a raw material. A cellulose acetate in which a content ratio by mole of mannose units to a sum of xylose units, mannose units and glucose units, which are sugar chain components, is 0.04 mol % or less, and a filtration index K measured by the following measurement method is 30 mL−1 or less. (Measurement method) The cellulose acetate is dissolved in a mixed solvent containing methylene chloride and methanol at a weight ratio of methylene chloride/methanol of 9/1 to obtain a solution with a solid concentration of 16% by weight. The temperature of the solution is adjusted to 25° C., and the solution is subjected to constant-pressure filtration under a pressure of 3 kg/cm2 using a cloth obtained by stacking three sheets of calico (s 618) (diameter: 15 mm, filtration area: 1.77 cm2). At this time, the filtration index k (mL−1) is calculated from the following expression, where P1 represents the amount of filtration (mL) up to 20 minutes after the start of filtration, and P2 represents the amount of filtration (mL) from 0 to 60 minutes. Filtration   index   K = 2 - P 2 / P 1 P 1 + P 2 × 10 4 [ Mathematical   Formula   1 ]

3. 发明授权

US3785775A Plant for continuous production of cellulose triacetate in a heterogeneous phase 失效
标题翻译：在异质相中连续生产三乙酸纤维素的工厂
公开(公告)号：US3785775A
公开(公告)日：1974-01-15
申请号：US3785775D
申请日：1971-07-19
申请人： MIKHALSKY F , LEVI M , LEVI Y , RYABTSEV A , RUDENKO P , KULESH P , PURLOV J , GASPARIANTS A
发明人： MIKHALSKY F , GASPARIANTS A , PURLOV J , KULESH P , RUDENKO P , RYABTSEV A , LEVI Y , LEVI M
IPC分类号： C08B1/02 , C08B3/06 , C08B3/22 , C08B17/02 , B01J3/02 , B01J4/00
CPC分类号： C08B3/22 , C08B1/02 , C08B3/06 , C08B17/02
摘要： A plant for continuous production of cellulose triacetate in a heterogeneous phase, comprising consecutively arranged apparatus for activating, acetylation and benzene washings, benzene stripping, partial saponification, water washings and final product drying. The apparatus for activating, the apparatus for acetylation and benzene washings, the apparatus for benzene stripping and the partial saponification apparatus are interconnected by connecting adaptors for conveying the fibrous reaction mass from one apparatus to another and provided with means for creating therein a sealing plug from the conveyed reaction mass. Said means for the creation of the sealing plug is in the form of a screw conveyer with a valve arranged at its discharge orifice and spring-loaded in the direction opposite to the direction of the fibrous reaction mass conveying.
摘要翻译：一种用于连续生产不均一相的三醋酸纤维素的设备，包括用于活化，乙酰化和苯洗涤的连续排列的装置，苯汽提，部分皂化，水洗和最后的产品干燥。用于激活的装置，用于乙酰化和苯洗涤的装置，用于苯汽提的装置和部分皂化装置通过用于将纤维反应物料从一个装置输送到另一装置的连接适配器相互连接并且设置有用于在其中形成密封塞的装置传达的反应物质。用于产生密封塞的所述装置是螺旋输送机的形式，其中阀设置在其排放孔处，并且沿与纤维反应物质输送方向相反的方向弹簧加载。

4. 发明授权

US3534434A Apparatus for producing low-density pellets from slurries containing film-forming materials 失效
标题翻译：用于生产包含成膜材料的薄膜的低密度颗粒的装置
公开(公告)号：US3534434A
公开(公告)日：1970-10-20
申请号：US3534434D
申请日：1968-08-01
申请人： PHILLIPS PETROLEUM CO
发明人： ZAVASNIK FRED J
IPC分类号： B01J2/22 , B29C44/34 , C08B3/22 , C08B9/00 , C08B11/20 , C08B17/02 , C08J9/16 , B29F3/12
CPC分类号： B29C44/461 , B01J2/22 , B29C44/3461 , C08B3/22 , C08B9/00 , C08B11/20 , C08B17/02 , C08J9/16

5. 发明授权

US3432579A Process for producing low-density pellets from slurries containing film-forming materials 失效
标题翻译：用于生产包含成膜材料的薄膜的低密度颗粒的方法
公开(公告)号：US3432579A
公开(公告)日：1969-03-11
申请号：US3432579D
申请日：1966-07-11
申请人： PHILLIPS PETROLEUM CO
发明人： ZAVASNIK FRED J
IPC分类号： B01J2/22 , B29C44/34 , C08B3/22 , C08B9/00 , C08B11/20 , C08B17/02 , C08J9/16 , C08F47/10 , B22D23/08 , C08G53/08
CPC分类号： B29C44/461 , B01J2/22 , B29C44/3461 , C08B3/22 , C08B9/00 , C08B11/20 , C08B17/02 , C08J9/16 , Y10S521/917

6. 发明授权

US3331099A Apparatus for manufacturing continuously cellulose esters from cellulose ester solution 失效
标题翻译：用于从纤维素酯溶液连续生产纤维素酯的设备
公开(公告)号：US3331099A
公开(公告)日：1967-07-18
申请号：US45849765
申请日：1965-04-05
申请人： TEIKOKU JINZO KENSHI KK
发明人： SOHEI SAITO , YUTAKA YAGI , SATORU TSUNODA , NAOSHIGE FUYIMOTO , KENICHI IRIE , YAHIRO HATANO
IPC分类号： B29B9/00 , C08B3/28 , C08B17/02
CPC分类号： B29B9/00 , C08B3/28 , C08B17/02

7. 发明授权

US2478383A Manufacture of cellulose esters 失效
公开(公告)号：US2478383A
公开(公告)日：1949-08-09
申请号：US65722346
申请日：1946-03-26
申请人： EASTMAN KODAK CO
发明人： FORDYCE CHARLES R , CRANE CARLTON L
IPC分类号： C08B17/02
CPC分类号： C08B17/02

8. 发明申请

US20070249824A1 Method of manufacturing cellulose acetate, high temperature steam reactor vessel used in the same method, and superheated steam generator used in the same method 审中-公开
标题翻译：制造醋酸纤维素的方法，以相同方法使用的高温蒸汽反应器容器和以相同方法使用的过热蒸汽发生器
公开(公告)号：US20070249824A1
公开(公告)日：2007-10-25
申请号：US11510725
申请日：2006-08-28
申请人： Teruyuki Shikata
发明人： Teruyuki Shikata
IPC分类号： C08B1/02 , F01N3/10
CPC分类号： C08B3/06 , C08B1/02 , C08B17/02
摘要： The present invention relates to a method of manufacturing cellulose acetate by use of a high temperature steam reactor vessel and a superheated steam generator. According to this method, a material to which solid catalyst added is subject to a steaming process so as to cause cellulose content to be separated from the material, followed by carrying out an acetylating process of the separated cellulose content together with solid acid in the state of being pressurized so as to obtain cellulose acetate. The high temperature steam reactor vessel employs a system that there is arranged in a reactor vessel body 1 a cartridge 2 filled with collective chips 100, whereby enabling the material subjected to the process to be readily handled and processed, and also resulting in that there is no need to carry out in a later process separation between useful content and residue produced in hydrolysis with high temperature steam. The superheated steam generator comprises a heat-exchange line 3 having line parts P1, P2, P3 sectioned into plural stages and so adapted that a sectional area of the line part on a stage at a downstream side is larger than that of the line part on a stage at an upstream side, whereby superheated steam having ultra high temperature is able to be generated while or although pressure proof properties can be designed to be relatively lower.
摘要翻译：本发明涉及使用高温蒸汽反应器容器和过热蒸汽发生器制造乙酸纤维素的方法。根据该方法，加入固体催化剂的材料进行蒸汽处理，以使纤维素含量与材料分离，然后在该状态下进行分离的纤维素含量与固体酸的乙酰化过程被加压以获得醋酸纤维素。高温蒸汽反应堆容器采用在反应器容器主体1中设置有填充有集合芯片100的盒2的系统，由此能够容易地处理和处理经过该处理的材料，并且还导致存在不需要在稍后的过程中进行有用含量与用高温蒸汽水解产生的残留物之间的分离。过热蒸汽发生器包括热交换管线3，其具有分段成多级的管线部分P 1，P 2，P 3，并且适于使下游侧的工作台上的管线部分的截面面积大于在上游侧的台阶上，能够产生具有超高温的过热蒸汽，或者虽然耐压性能可以设计得相对较低。

9. 发明授权

US5928613A Apparatus for acetylating cellulose 失效
标题翻译：纤维素乙酰化装置
公开(公告)号：US5928613A
公开(公告)日：1999-07-27
申请号：US92979
申请日：1998-06-08
申请人： Mitsuru Yamashita
发明人： Mitsuru Yamashita
IPC分类号： B01J19/00 , C08B3/06 , C08B17/02 , B01J8/04 , B01J10/00
CPC分类号： C08B3/06 , B01J19/0006 , C08B17/02 , B01J2219/00162
摘要： In a production process of a cellulose acetate which comprises (a) a reduced pressure-acetylation step of acetylating a cellulose under a reduced pressure in the presence of sulfuric acid or other acidic catalyst, with distilling off a gaseous phase component of the reaction system out of the system, and (b) a post-acetylation step of allowing the acetylation to further proceed by increasing the pressure as compared with the pressure of the reduced pressure-acetylation step by means of release of the pressure reduction of the reaction system or the like, the shift operation from the reduced pressure-acetylation step to the post-acetylation step is conducted by taking a distilling rate of a distillate in the reduced pressure-acetylation step as an index to control the reaction temperature of the post-acetylation step. The shift operation from the reduced pressure-acetylation step to the post-acetylation step may also be conducted by taking a distilling rate after the distilling rate in the reduced pressure-acetylation step has reached a maximum value.
摘要翻译：在乙酸纤维素的生产方法中，其包括（a）在硫酸或其它酸性催化剂存在下，在减压下乙酰化纤维素的减压乙酰化步骤，将反应体系的气相成分蒸出和（b）通过减轻反应体系的压力降低或减压乙酰化步骤的压力与减压乙酰化步骤相比通过增加压力使乙酰化进一步进行的后乙酰化步骤，或通过将减压乙酰化步骤中的馏出物的蒸馏速度作为控制后乙酰化步骤的反应温度的指标进行从减压乙酰化步骤到后乙酰化步骤的转移操作。从减压乙酰化步骤到后乙酰化步骤的转移操作也可以通过在减压 - 乙酰化步骤中的蒸馏速率达到最大值之后进行蒸馏速率。

10. 发明授权

US5869646A Method and apparatus for acetylating cellulose 失效
标题翻译：乙酰化纤维素的方法和装置
公开(公告)号：US5869646A
公开(公告)日：1999-02-09
申请号：US787565
申请日：1997-01-22
申请人： Mitsuru Yamashita
发明人： Mitsuru Yamashita
IPC分类号： B01J19/00 , C08B3/06 , C08B17/02
CPC分类号： C08B3/06 , B01J19/0006 , C08B17/02 , B01J2219/00162
摘要： In a production process of a cellulose acetate which comprises (a) a reduced pressure-acetylation step of acetylating a cellulose under a reduced pressure in the presence of sulfuric acid or other acidic catalyst, with distilling off a gaseous phase component of the reaction system out of the system, and (b) a post-acetylation step of allowing the acetylation to further proceed by increasing the pressure as compared with the pressure of the reduced pressure-acetylation step by means of release of the pressure reduction of the reaction system or the like, the shift operation from the reduced pressure-acetylation step to the post-acetylation step is conducted by taking a distilling rate of a distillate in the reduced pressure-acetylation step as an index to control the reaction temperature of the post-acetylation step. The shift operation from the reduced pressure-acetylation step to the post-acetylation step may also be conducted by taking a distilling rate after the distilling rate in the reduced pressure-acetylation step has reached a maximum value.
摘要翻译：在乙酸纤维素的生产方法中，其包括（a）在硫酸或其它酸性催化剂存在下，在减压下乙酰化纤维素的减压乙酰化步骤，蒸馏出反应体系的气相成分和（b）通过减轻反应体系的压力降低或减压乙酰化步骤的压力与减压乙酰化步骤相比通过增加压力使乙酰化进一步进行的后乙酰化步骤，或通过将减压乙酰化步骤中的馏出物的蒸馏速度作为控制后乙酰化步骤的反应温度的指标进行从减压乙酰化步骤到后乙酰化步骤的转移操作。从减压乙酰化步骤到后乙酰化步骤的转移操作也可以通过在减压 - 乙酰化步骤中的蒸馏速率达到最大值之后进行蒸馏速率。

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