公开(公告)号：US20160340301A1

公开(公告)日：2016-11-24

申请号：US15228568

申请日：2016-08-04

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C303/32 ,  C07C303/44 ,  C07C303/02

CPC classification number: C07C303/32 ,  C07C303/02 ,  C07C303/44 ,  C07C309/14

Abstract: A cyclic process is disclosed for the production of taurine from alkali vinyl sulfonate in a high overall yield by continuously converting the byproducts of the ammonolysis reaction, sodium ditaurinate and sodium tritaurinate, to sodium taurinate. Sodium sulfate and residual taurine in the crystallization mother liquor are efficiently separated by converting taurine into a highly soluble form of sodium taurinate or ammonium taurinate while selectively crystallizing sodium sulfate.

Abstract translation: 公开了通过连续地将氨解反应副产物，二月桂酸钠和三十三酸钠转化为牛磺酸钠的方法，以高的总产率从碱金属乙烯基磺酸盐生产牛磺酸的循环方法。 通过将牛磺酸转化为高度可溶形式的牛磺酸钠或牛磺酸铵，同时选择性结晶硫酸钠，可以有效地分离结晶母液中的硫酸钠和残余牛磺酸。

公开(公告)号：US09061978B1

公开(公告)日：2015-06-23

申请号：US14120045

申请日：2014-04-18

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C305/00 ,  C07C313/12

CPC classification number: C07C303/24 ,  C07C303/06 ,  C07C305/06 ,  C07C309/12

Abstract: The present invention discloses a process for the production of ethionic acid by reacting ethanol with sulfur trioxide in a molar ratio of 1:2 at a temperature from 40 to 100° C. in a falling film reactor while cooling the reactor with a cooling means.

Abstract translation: 本发明公开了一种通过乙醇与三氧化硫在摩尔比为1:2的温度下在降膜反应器中在40〜100℃下反应生产乙酸的方法，同时用冷却装置冷却反应器。

公开(公告)号：US20160355470A1

公开(公告)日：2016-12-08

申请号：US15238621

申请日：2016-08-16

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C303/02

CPC classification number: C07C303/02 ,  C07C303/32 ,  C07C303/44 ,  C07C309/14

Abstract: There is disclosed a process for producing taurine by the ammonolysis of alkali isethionate in the presence of alkali ditaurinate or alkali tritaurinate, or their mixture, to inhibit the formation of byproducts and to continuously convert the byproducts of the ammonolysis reaction to alkali taurinate. Alkali taurinate is neutralized with isethionic acid to obtain taurine and to regenerate alkali isethionate. The production yield is increased to from 90% to nearly quantitative. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate.

Abstract translation: 公开了通过碱金属羟乙基磺酸盐在碱金属二硫酸盐或三氯硝酸碱或其混合物的存在下的氨解生产牛磺酸的方法，以抑制副产物的形成，并将氨解反应的副产物连续转化成碱金牛磺酸盐。 碱性牛磺酸钠用羟乙磺酸中和，得到牛磺酸，再生碱羟乙基磺酸盐。 生产产量从90％提高到接近数量。 氨解反应由氢氧化物，硫酸盐，亚硫酸盐，磷酸盐或碳酸盐的碱金属盐催化。

公开(公告)号：US20150210633A1

公开(公告)日：2015-07-30

申请号：US13999203

申请日：2014-01-29

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C303/22

CPC classification number: C07C303/32 ,  C07C309/08

Abstract: The present invention discloses a process for the preparation of taurine from ethionic acid and ethanol by way of ethanol-derived ethionic acid by the ammonolysis of ethionic acid and by the ammonolysis of sodium isethionate and sodium vinyl sulfonate, key intermediates prepared from ethionic acid.

公开(公告)号：US09145359B2

公开(公告)日：2015-09-29

申请号：US13998958

申请日：2013-12-30

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C303/02 ,  C07C303/42 ,  C07C303/24

CPC classification number: C07C303/02 ,  C07C303/24 ,  C07C303/42 ,  C07C309/14 ,  C07C305/06

Abstract: A method is disclosed for the production of taurine in high yield by a cyclic process of reacting monoethanolamine, sulfuric acid, and ammonium sulfite in the presence of additives to inhibit the hydrolysis of 2-aminoethyl hydrogen sulfate intermediate. The cyclic process is economical and little waste is generated.

公开(公告)号：US09061976B1

公开(公告)日：2015-06-23

申请号：US14120491

申请日：2014-05-27

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C309/00 ,  C07C309/14 ,  C07C309/10

CPC classification number: C07C303/22 ,  C07C303/32 ,  C07C303/44 ,  C07C309/08 ,  C07C309/14

Abstract: The present invention discloses a cyclic process for the production of taurine from ethylene oxide in a high yield of greater than 95% by continuously converting the byproducts of the ammonolysis reaction, sodium ditaurinate and sodium tritaurinate, to sodium taurinate. The cyclic process is completed by using sulfur dioxide or sulfurous acid to neutralize sodium taurinates to recover taurine and to regenerate sodium bisulfite, which is then reacted with ethylene oxide.

Abstract translation: 本发明公开了通过将氨解反应副产物，二月桂酸钠和三十三酸钠连续转化成牛磺酸钠，从而以大于95％的高产率从环氧乙烷生产牛磺酸的循环方法。 循环过程是通过使用二氧化硫或亚硫酸来中和牛磺酸钠来回收牛磺酸和再生亚硫酸氢钠，然后与环氧乙烷反应完成的。

公开(公告)号：US08609890B1

公开(公告)日：2013-12-17

申请号：US13573076

申请日：2012-08-20

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C309/00

CPC classification number: C07C303/02 ,  C07C303/32 ,  C07C309/14

Abstract: A method is disclosed for the production of taurine by a cyclic process of reacting ethylene oxide with sodium bisulfite and ammonium to obtain sodium taurinate. After excess ammonia is removed from the reaction mixture, sodium taurinate is neutralized with sulfur dioxide or sulfurous acid to recover taurine and to regenerate sodium bisulfate, which is then reacted with ethylene oxide.

Abstract translation: 公开了通过使环氧乙烷与亚硫酸氢钠和铵反应的环状方法生产牛磺酸的方法，以获得牛磺酸钠。 从反应混合物中除去过量的氨后，用二氧化硫或亚硫酸中和牛磺酸钠，以回收牛磺酸，再生亚硫酸氢钠，再与环氧乙烷反应。

公开(公告)号：US20160340300A1

公开(公告)日：2016-11-24

申请号：US15228539

申请日：2016-08-04

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C303/32 ,  C07C303/44 ,  C07C303/02

CPC classification number: C07C303/32 ,  C07C303/02 ,  C07C303/22 ,  C07C303/44 ,  C07C309/14

Abstract: There is disclosed a process for producing taurine by the ammonolysis of alkali isethionate in the presence of alkali ditaurinate or alkali tritaurinate, or their mixture, to inhibit the formation of byproducts and to continuously convert the byproducts of the ammonolysis reaction to alkali taurinate. The production yield is increased to from 90% to nearly quantitative. The ammonolysis reaction is catalyzed by alkali salts of hydroxide, sulfate, sulfite, phosphate, or carbonate.

Abstract translation: 公开了通过碱金属羟乙基磺酸盐在碱金属二硫酸盐或三氯硝酸碱或其混合物的存在下的氨解生产牛磺酸的方法，以抑制副产物的形成，并将氨解反应的副产物连续转化成碱金牛磺酸盐。 生产产量从90％提高到接近数量。 氨解反应由氢氧化物，硫酸盐，亚硫酸盐，磷酸盐或碳酸盐的碱金属盐催化。

公开(公告)号：US09428451B2

公开(公告)日：2016-08-30

申请号：US14120651

申请日：2014-06-12

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C303/32 ,  C07C303/02 ,  C07C303/44

CPC classification number: C07C303/32 ,  C07C303/02 ,  C07C303/44 ,  C07C309/14

Abstract: A cyclic process is disclosed for the production of taurine from alkali isethionate in a high overall yield by continuously converting the byproducts of the ammonolysis reaction, sodium ditaurinate and sodium tritaurinate, to sodium taurinate. Sodium sulfate and residual taurine in the crystallization mother liquor are efficiently separated by converting taurine into a highly soluble form of sodium taurinate or ammonium taurinate while selectively crystallizing sodium sulfate.

Abstract translation: 公开了通过连续地将氨解反应副产物，二月桂酸钠和三十三酸钠转化为牛磺酸钠的方法，以高的总产率从碱性羟乙基磺酸盐生产牛磺酸的循环方法。 通过将牛磺酸转化为高度可溶形式的牛磺酸钠或牛磺酸铵，同时选择性结晶硫酸钠，可以有效地分离结晶母液中的硫酸钠和残余牛磺酸。

公开(公告)号：US20150299113A1

公开(公告)日：2015-10-22

申请号：US14120046

申请日：2014-04-18

Applicant: Songzhou Hu

Inventor： Songzhou Hu

IPC: C07C303/32 ,  C07C303/44 ,  C07C303/02

CPC classification number: C07C303/32 ,  C07C303/02 ,  C07C303/44 ,  C07C309/14

Abstract: The present invention discloses a cyclic process for the production of taurine from alkali isethionate and alkali vinyl sulfonate in a high overall yield of greater than 95% by continuously converting the byproducts of the ammonolysis reaction, sodium ditaurinate and sodium tritaurinate, to sodium taurinate. Pure sodium ditaurinate and sodium tritaurinate are prepared from diethanolamine and triethanolamine as starting materials, respectively, and are subjected to the ammonolysis reaction to yield a mixture of sodium taurinate, sodium ditaurinate, and sodium tritaurinate.

Abstract translation: 本发明公开了通过将氨解反应副产物，二月桂酸钠和三十三酸钠连续转化成牛磺酸钠，从而使碱金属乙醇酸盐和碱金属乙烯基磺酸盐以大于95％的高产率生产牛磺酸的循环方法。 分别由二乙醇胺和三乙醇胺作为原料制备纯二磺酸钠和三十三酸钠，并进行氨解反应，得到牛磺酸钠，二月桂酸钠和三十三酸钠的混合物。