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    • 11. 发明公开
    • 압력 변동 정류에 의해 트리옥산/포름알데히드/물 혼합물로부터 트리옥산을 분리하는 방법
    • 通过压力变化方法从三氧化硅/甲醛/水混合物中分离三氧化二锑的方法
    • KR1020090113363A
    • 2009-10-30
    • KR1020097015612
    • 2008-01-23
    • 바스프 에스이
    • 랑,네펜틸,요아힘슈트뢰퍼,에크하르트키르쉬바움,율리아지게르트,마르쿠스
    • B01D3/14C07D323/06
    • C07D323/06B01D3/146B01D3/148
    • The invention relates to a method for separating trioxane from an inlet flow (I) consisting of formaldehyde, trioxane and water. Said method consists in a) preparing an inlet flow (I), which contains formaldehyde as the main component and trioxane and water as auxiliary components, b) feeding the inlet flow (I), a return flow (V) and a return flow (VII), containing formaldehyde as the main component and trioxane and water auxiliary components, into a first distillation step and distilling it at a pressure of between 0.1 to 2.5 bars, thus enabling a flow (II), which contains formaldehyde as the main component and water as the auxiliary component, and a flow (III), which contains trioxane as the main component and water and formaldehyde as the auxiliary components, and a flow (X), which contains water, trioxane and formaldehyde to be obtained, c) distilling the flow (III), optionally after separating materials at a low-boiling point from the flow (III) in a low-boiling separation step and in a second distillation step at a pressure of between 0.2 to 17. 5 bars, whereby the pressure in the second distillation step is 0.1 to 15 bars higher that the pressure in the first distillation step. A flow (IV) is obtained which is essentially made of trioxane, and also a return flow (V), which contains trioxane as the main component and water and formaldehyde as the auxiliary components, d) feeding the flow (X) and optionally a flow (IX), which contains water as the main component, into a third distillation step and distilling it at a pressure of between 1 to 10 bars, whereby a flow (VI), which is essentially made of water, and a return flow (VII), which contains formaldehyde as the main component and water and trioxane as the auxiliary components, are obtained.
    • 本发明涉及从甲醛,三恶烷和水组成的入口流(I)分离三恶烷的方法。 所述方法包括:a)制备以甲醛为主要成分的入口流(I),以及三恶烷和水为辅助成分,b)进料入口流(I),回流(V)和回流 VII),其以甲醛为主要成分和三恶烷和水辅助成分,分成第一蒸馏步骤,并在0.1至2.5巴之间的压力下蒸馏,从而使得能够含有甲醛作为主要成分的流动(II)和 水作为辅助成分,含有三恶烷作为主要成分的水(III)和作为辅助成分的水和甲醛,以及含有水,三恶烷和甲醛的流动(X),c)蒸馏 流动(III),任选地在低沸点分离步骤和第二蒸馏步骤中在低于沸点(III)的沸点下在0.2至17.5巴之间的压力下分离材料,由此压力 在第二蒸馏步骤中 比第一蒸馏步骤中的压力高0.1至15巴。 获得基本上由三恶烷制成的流动(IV),以及含有三恶烷作为主要成分的回流(V),以及作为辅助成分的水和甲醛,d)进料流(X)和任选的 以水为主要成分的流(Ⅸ)进入第三蒸馏步骤,并在1至10巴之间的压力下蒸馏,由此基本上由水制成的流动(VI)和回流( VII),其中含有甲醛作为主要成分,并以水和三恶烷为辅助成分。
    • 12. 发明公开
    • 포름알데히드로부터 트리옥산의 통합 제조 방법
    • 用于从甲醛生产三氧化二铁的综合方法
    • KR1020080033364A
    • 2008-04-16
    • KR1020087003041
    • 2006-08-01
    • 바스프 에스이
    • 랑,네펜스트뢰퍼,에크하르트스타머,아힘프리제,토르스텐시게르트,마르쿠스하세,한스그뤼츠너,토마스블라고프,세르게이
    • C07D323/06
    • C07D323/06Y02P20/125
    • The invention relates to an integrated method for producing trioxane from formaldehyde. According to said method, a flow A1 containing water and formaldehyde as well as a recirculation flow B2 substantially composed of water and formaldehyde are delivered to a trioxane synthesis reactor in which the formaldehyde is reacted to trioxane such that a product flow A2 containing trioxane, water, and formaldehyde is obtained. Flow A2 and a recirculation flow D1 containing trioxane, water, and formaldehyde are fed to a first distillation column and are distilled at a pressure ranging from 0.1 to 2.5 bar such that a trioxane-enriched flow B1 and flow B2, which is essentially composed of water and formaldehyde, are obtained. Flow B1 is delivered to a second distillation column and is distilled at a pressure ranging from 0.2 to 17.5 bar such that a product flow substantially comprising trioxane and a flow C1 containing trioxane, water, and formaldehyde are obtained. Flow C1 is fed to a third distillation column and is distilled at a pressure ranging from 1 to 10 bar such that the recirculation flow D1 containing trioxane, water, and formaldehyde as well as a flow D2 that is substantially composed of water are obtained.
    • 本发明涉及从甲醛生产三恶烷的综合方法。 根据所述方法,将含有水和甲醛的流动A1以及基本上由水和甲醛组成的再循环流B2输送到三恶烷合成反应器,其中甲醛与三恶烷反应,使得含有三恶烷的产物流A2,水 ,得到甲醛。 将流动A2和含有三恶烷,水和甲醛的再循环流D1加入到第一蒸馏塔中,并在0.1至2.5巴的压力下蒸馏,使得富含三恶烷的流B1和流B2基本上由 水和甲醛。 将流量B1输送到第二蒸馏塔,并在0.2至17.5巴的压力下蒸馏,使得获得基本上包含三恶烷的产物流和含有三恶烷,水和甲醛的流动C1。 将流C1加入到第三蒸馏塔中并在1至10巴的压力下蒸馏,从而获得含有三恶烷,水和甲醛的再循环流D1以及基本上由水组成的流动D2。
    • 13. 发明公开
    • 포름알데히드로부터 트리옥산의 통합 제조 방법
    • 用于从甲醛生产三氧化二铁的综合方法
    • KR1020080033363A
    • 2008-04-16
    • KR1020087003039
    • 2006-08-04
    • 바스프 에스이
    • 랑,네펜스트뢰퍼,에크하르트스타머,아힘프리제,토르스텐시게르트,마르쿠스하세,한스그뤼츠너,토마스블라고프,세르게이
    • C07D323/06
    • C07D323/06Y02P20/125
    • The invention relates to an integrated method for producing trioxane from formaldehyde. According to said method, a flow A1 containing water and formaldehyde and a return flow B2 consisting essentially of water and formaldehyde are introduced into a trioxane synthesis reactor in which the formaldehyde is converted into trioxane, forming a product flow A2 containing trioxane, water and formaldehyde; the flow A2 is introduced into a first distillation column and distilled at a pressure of between 0. 1 and 2.5 bar, forming a trioxane-enriched flow B1 and the flow B2 consisting essentially of water and formaldehyde; the flow B1 and a return flow D1 containing trioxane, water and formaldehyde are introduced into a second distillation column and distilled at a pressure of between 0.2 and 17.5 bar, forming a product flow C2 consisting essentially of trioxane and a flow C1 containing trioxane, water and formaldehyde; and the flow C1 is introduced into a third distillation column and distilled at a pressure of between 0.1 and 2.5 bar, forming the return flow D1 containing trioxane, water and formaldehyde and a flow D2 consisting essentially of water and formaldehyde.
    • 本发明涉及从甲醛生产三恶烷的综合方法。 根据所述方法,将含有水和甲醛的流动A1和基本上由水和甲醛组成的回流B2引入三氧化硅合成反应器中,其中甲醛被转化成三恶烷,形成含有三恶烷,水和甲醛的产物流A2 ; 将流动A2引入第一蒸馏塔并在0.1至2.5巴之间的压力下蒸馏,形成富含三恶烷的流量B1和基本上由水和甲醛组成的流量B2; 将流动B1和含有三恶烷,水和甲醛的回流D1引入第二蒸馏塔中并在0.2至17.5巴之间的压力下蒸馏,形成基本上由三恶烷组成的产物流C2和含有三恶烷的流C1,水 和甲醛; 并且将流C1引入第三蒸馏塔并在0.1至2.5巴之间的压力下蒸馏,形成含有三恶烷,水和甲醛的回流流D1和基本上由水和甲醛组成的流动D 2。
    • 19. 发明公开
    • 포름알데히드로부터 트리옥산의 통합 제조 방법
    • 用于从甲醛制备三氧化二铁的综合方法
    • KR1020090029258A
    • 2009-03-20
    • KR1020097000464
    • 2007-06-11
    • 바스프 에스이
    • 지게르트,마르쿠스랑,네펜스트뢰퍼,에크하르트지크바르트,크리스토프
    • C08G2/10C08G8/08C07D323/06
    • C07D323/06Y02P20/125
    • Integrated method for the preparation of trioxane from formaldehyde, comprising the steps: a) introduction of a feeding flow A1 containing formaldehyde and water and a return flow B3 consisting essentially of formaldehyde and trioxane into a formaldehyde concentration unit, wherein said flows are separated into a formaldehyde-rich flow A2 and a flow A3 consisting essentially of water; b) introduction of a product flow C1, containing trioxane, water, and formaldehyde, a return flow E1 containing trioxane, water, and formaldehyde, and possibly flow A2 into a first low-pressure distillation column, wherein said flows are distilled at a pressure of from 0.1 to 1.5 atmospheres, with a trioxane-enriched flow B1 containing predominantly trioxane, and also water and formaldehyde, a slough removal flow B2 consisting essentially of formaldehyde and water, and the return flow B3 containing predominantly water, and also formaldehyde and trioxane removed as a side removal flow; c) introduction of a slough removal flow B2 and possibly the flow A2 into a trioxane synthesis reactor, wherein said flows are allowed to react, and wherein the flow C1 containing trioxane, water, and formaldehyde is obtained; d) introduction of a flow B1 into a mid-pressure distillation column, wherein said flow is distilled at a pressure of from 1.0 to 3.0 atmospheres, wherein a low boiler stream D1 containing methanol, methylal, and methylformate,and a stream D2 containing predominantly trioxane and also formaldehyde and water are obtained; e) introduction of a stream D2 into a high-pressure distillation column, wherein said stream is distilled at a pressure of from 2.5 to 10.0 atmospheres, wherein the return flow E1 contains trioxane, water, and formaldehyde, and a product flow E2 consisting essentially of trioxane is obtained; wherein flow A2 can be introduced into either the low-pressure distillation column or into the trioxane-35 synthesis reactor, or into both.
    • 一种由甲醛制备三恶烷的综合方法,包括以下步骤:a)将含有甲醛和水的进料流A1和基本上由甲醛和三恶烷组成的回流B3引入甲醛浓缩装置,其中所述流分离成 富甲醛流A2和基本上由水组成的流量A3; b)引入含有三恶烷,水和甲醛的产物流C1,含有三恶烷,水和甲醛的回流E1和可能的流A2到第一低压蒸馏塔,其中所述流在压力下蒸馏 具有主要为三恶烷的三恶烷富集流B1以及水和甲醛,基本上由甲醛和水组成的脱水除去流B2以及主要含水的回流B3以及甲醛和三恶烷 作为侧面去除流除去; c)将脱脂流B2和可能的流A2引入三恶烷合成反应器中,其中使所述流动反应,并且其中得到含有三恶烷,水和甲醛的流C1; d)将流B1引入中压蒸馏塔,其中所述流在1.0至3.0大气压的压力下蒸馏,其中含有甲醇,甲缩醛和甲酸甲酯的低沸点物流D1和主要含有 得到三恶烷,还得到甲醛和水; e)将料流D2引入高压蒸馏塔中,其中所述料流在2.5至10.0大气压的压力下蒸馏,其中回流E1包含三恶烷,水和甲醛,产物流E2基本上组成 得到三恶烷; 其中流动A2可以被引入低压蒸馏塔或三恶烷-35合成反应器中,或两者进入。
    • 20. 发明公开
    • 트리옥산 및 1종 이상의 공단량체의 제조 방법
    • 生产三氧化物和至少一个人的过程
    • KR1020080075126A
    • 2008-08-14
    • KR1020087013040
    • 2006-10-27
    • 바스프 에스이
    • 랑,네벤뵈링,랄프스타머,아힘올덴부르크,얀지게르트,마르쿠스스트뢰퍼,에크하르트
    • C08G2/10C07D317/12C07D319/00C07D323/06
    • C08G2/10C07D317/12C07D323/06C08G2/20Y02P20/127Y02P20/582
    • The invention relates to a process for producing trioxane and at least one comonomer for producing (co)polymers on a trioxane basis, in which, in a first step, formaldehyde and at least one comonomer starting material are reacted in aqueous solution to form trioxane and comonomer, wherein a reaction mixture A1 containing trioxane, comonomer, formaldehyde, water and if appropriate comonomer starting material is obtained. In a second step, the reaction mixture A1 is distilled in a first distillation stage at a first pressure, wherein a trioxane-and comonomer-enriched stream B1 and an essentially water-, formaldehyde-and if appropriate comonomer starting material-containing stream B2 are obtained. In a third step, the stream B1 is distilled in a second distillation stage at a pressure which is above the pressure of the first distillation stage, wherein a trioxane-, comonomer-and water-containing stream C1 and a product stream C2 essentially consisting of comonomer and trioxane are obtained.
    • 本发明涉及三恶烷和至少一种用于在三恶烷基上制备(共)聚合物的共聚单体的方法,其中在第一步中,甲醛和至少一种共聚单体原料在水溶液中反应形成三恶烷, 共聚单体,其中获得含有三恶烷,共聚单体,甲醛,水和如果合适的共聚单体原料的反应混合物A1。 在第二步骤中,反应混合物A1在第一压力下在第一蒸馏阶段进行蒸馏,其中富含三恶烷和共聚单体的料流B1和基本上水,甲醛和如果合适的共聚单体起始原料流B2是 获得。 在第三步骤中,在高于第一蒸馏阶段的压力的压力下,在第二蒸馏阶段蒸馏料流B1,其中三恶烷,共聚单体和含水流C1和基本上由 共聚单体和三恶烷。