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metal5555金蟲 (小有名氣)
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[求助]
[求助]幾小段化工方面的翻譯，請求幫助！
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幾小段化工方面的翻譯，請求幫助！最好是在今天翻譯好！謝謝！ I am glad to hear JR is still considering the consultancy which I strongly recommend based on the process highlights they disclosed. regarding JR process brief description i will convey major comments that I hope will help them to recognize they will have a lot of opportunities to improve their process. My comments will be in red in their process descripton plus some major comment I detail now: a.-Reaction is the core step in the process, and reactants additon, temperature reaction control and other key variabes are key to promote the main reactions and diminish side reactions that affect all the process and of course the quality of the end products. b.-Although formals can be managed a little bit in the reactor they have to be eliminated in an additional step assuming how to managed the by products generated in that step that has to be recycled. More commnets in red down in this mail Formaldehyde mixed with acetaldehyde and gradually adding sodium hydroxide as reactor, Reaction is the main step in Pe process and affects everything downstream. Sodium acts as a catalizer and a reactant in the two main reactions, acetaldehyde in most PE processes is the limitant and Fomraldehyde is managed wi th molar excess. This means that it is better to add gradually the acetaldehyde than caustic. The way this must be done and the way reaction temperature mas be controlled i s key to each chemical reaction within the reactor. High impact can be obtained in Mo PE, DiPE, and other byporducts controllig reation variables neutralize the reaction mixture with formic acid Understood removal impurties by distillation, Evaportation and distillation are key to remove impurities and recovered excess formaldehyde fre o f those impurities, otherwise the reaction is dramatical ly affected. after colling and crystallization, Understood The solution concentrated under vacuum to get sodium formate crystallization and low purity penta, In order to obtain high-purity pentaerythritol,dissolved the low purity penta in hot water,after recrystallization, centrifugation, drying to get final product. ; Understood, but in four different technologies I know it is preffered to manage molar ratios in the raction in order to cristallize frist PE and then by fractionated crystallitazion obtain high purity Formate and low grade PE. ; ;The formals test result is 5-6%. JR is wondering whether your technical method is similar with above method or totally different? Conceptually the method is simmilar but the way the process is organized it is not neccesary the same. I forsee important opportunities for tehir process. Will you control the formals to a low spec by adjust the production mehtod? As i explained in the reactor is defined how different reaction including side reatiojs are driven, but formal will be created anyway. In order to remove formals a special treatment must be done adding specific equipments and assumig that the by products from that treatment has to be recycled to the process in order to keep overall yields under control I hope this explanation is enoug for the time being. I they see these answers I am sure they will realize waht I am talking about. In my perspective they a nice opportunity to imporve their process based on my long term expirience. I know trust is a long process in China, but they have to take a decission to start working or just close the option. I have been very open in this mail in order to encourage them to go. [ 來自科研家族 神龍魚族館 ] |
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metal5555
金蟲 (小有名氣)
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2樓2011-10-31 09:26:12
metal5555
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中間有些單詞拼寫錯誤，現(xiàn)在改過來了！ I am glad to hear JR is still considering the consultancy which I strongly recommend based on the process highlights they disclosed. regarding JR process brief description i will convey major comments that I hope will help them to recognize they will have a lot of opportunities to improve their process. My comments will be in red in their process description plus some major comment I detail now: a.-Reaction is the core step in the process, and reactants addition , temperature reaction control and other key varies are key to promote the main reactions and diminish side reactions that affect all the process and of course the quality of the end products. b.-Although formals can be managed a little bit in the reactor they have to be eliminated in an additional step assuming how to managed the by-products generated in that step that has to be recycled. More comments in red down in this mail Formaldehyde mixed with acetaldehyde and gradually adding sodium hydroxide as reactor, Reaction is the main step in Pe process and affects everything downstream. Sodium acts as a catalyzer and a reactant in the two main reactions, acetaldehyde in most PE processes is the limited and formeldehyde is managed with molar excess. This means that it is better to add gradually the acetaldehyde than caustic. The way this must be done and the way reaction temperature must be controlled i s key to each chemical reaction within the reactor. High impact can be obtained in Mo PE, DiPE, and other by-products controlling reaction varies neutralize the reaction mixture with formic acid Understood removal impurities by distillation, Evaportation and distillation are key to remove impurities and recovered excess formaldehyde free of those impurities, otherwise the reaction is dramatically affected. after cooling and crystallization, Understood The solution concentrated under vacuum to get sodium formate crystallization and low purity penta, In order to obtain high-purity pentaerythritol,dissolved the low purity penta in hot water,after recrystallization, centrifugation, drying to get final product. Understood, but in four different technologies I know it is preffered to manage molar ratios in the raction in order to crystallize first PE and then by fractionated crystallitazion obtain high purity Formate and low grade PE. The formals test result is 5-6%. JR is wondering whether your technical method is similar with above method or totally different. Conceptually the method is simmilar but the way the process is organized it is not neccesary the same. I foresee important opportunities for their process. Will you control the formals to a low spec by adjust the production method? As i explained in the reactor is defined how different reaction including side reations are driven, but formal will be created anyway. In order to remove formals a special treatment must be done adding specific equipments and assuming that the by products from that treatment has to be recycled to the process in order to keep overall yields under control I hope this explanation is enough for the time being. I they see these answers I am sure they will realize what I am talking about. In my perspective they a nice opportunity to improve their process based on my long term experience. I know trust is a long process in China, but they have to take a decission to start working or just close the option. I have been very open in this mail in order to encourage them to go. |
3樓2011-10-31 15:20:27
chembibi
銀蟲 (小有名氣)
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【答案】應(yīng)助回帖
metal5555(金幣+10): 謝謝！有人翻譯完了！ 2011-10-31 16:56:08
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前面的是客氣話就不翻譯了哈：進(jìn)入正題~ a.反應(yīng)是一個流程的核心部分，反應(yīng)物的加料，溫度的反饋控制等一些其他的因素都是促進(jìn)主反應(yīng)，抑制副反應(yīng)發(fā)生的關(guān)鍵，這些都會影響到整個流程及最后產(chǎn)品的質(zhì)量。 b.甲醛和乙醛的混合液加入反應(yīng)器，同時逐滴加入氫氧化鈉。反應(yīng)是聚乙烯流程的關(guān)鍵步驟，會影響到下游流程。鈉在這兩個主要反應(yīng)力分別作為催化劑和反應(yīng)物，在大多數(shù)的PE流程中乙醛不能過量，而甲醛是過量的。 |
4樓2011-10-31 16:32:47
chembibi
銀蟲 (小有名氣)
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5樓2011-10-31 16:39:48
metal5555
金蟲 (小有名氣)
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6樓2011-10-31 16:43:37
【答案】應(yīng)助回帖
metal5555(金幣+60, 翻譯EPI+1): 非常感謝！呵呵！不好意思，分點前面的！ 2011-10-31 16:55:44
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I am glad to hear JR is still considering the consultancy which I strongly recommend based on the process highlights they disclosed. regarding JR process brief description i will convey major comments that I hope will help them to recognize they will have a lot of opportunities to improve their process. My comments will be in red in their process description plus some major comment I detail now: 我很高興聽到關(guān)于JR過程仍在考慮我的建議，我強烈建議顧問他們說明反應(yīng)過程中的要點。 關(guān)于JR過程的簡要說明，我會把主要的意見表達(dá)給他們，希望能夠幫助他們認(rèn)識到，他們有很多的機(jī)會去提高反應(yīng)的過程。下面是我在他們的過程描述加上一些主要的細(xì)節(jié)評論（用紅色標(biāo)注）： a.-Reaction is the core step in the process, and reactants addition , temperature reaction control and other key varies are key to promote the main reactions and diminish side reactions that affect all the process and of course the quality of the end products. A.反應(yīng)是反應(yīng)過程中的核心步驟，反應(yīng)物加入量，反應(yīng)溫度控制等變量是推進(jìn)主要反應(yīng)和減少副反應(yīng)影響所有進(jìn)程和最終產(chǎn)品的質(zhì)量的關(guān)鍵因素。 b.-Although formals can be managed a little bit in the reactor they have to be eliminated in an additional step assuming how to managed the by-products generated in that step that has to be recycled. More commnets in red down in this mail B.，雖然通過一個反應(yīng)器能夠使縮醛減少一點點，假設(shè)能夠解決如何控制副產(chǎn)物產(chǎn)生在這一步，他們將要淘汰這個額外的步驟。這個步驟用于回收利用縮醛副產(chǎn)物。更多紅色標(biāo)注的評論如下郵件： Formaldehyde mixed with acetaldehyde and gradually adding sodium hydroxide as reactor, Reaction is the main step in Pe process and affects everything downstream. Sodium acts as a catalyzer and a reactant in the two main reactions, acetaldehyde in most PE processes is the limited and Fomraldehyde is managed with molar excess. 甲醛和乙醛混合，逐漸加入氫氧化鈉到反應(yīng)裝置， PE過程是反應(yīng)的主要步驟和影響的接下來的一切反應(yīng)。 鈉在兩個主要的反應(yīng)，既是催化劑又是反應(yīng)劑，在大多數(shù)PE過程中乙醛是定量的以及甲醛是摩爾相對過剩的。 This means that it is better to add gradually the acetaldehyde than caustic. The way this must be done and the way reaction temperature must be controlled i s key to each chemical reaction within the reactor. High impact can be obtained in Mo PE, DiPE, and other byporducts controlling reation varies 這意味著反應(yīng)過程中最好地逐步加入乙醛。必須采用這種方式以及控制反應(yīng)溫度，這些方式是每個反應(yīng)器內(nèi)的化學(xué)反應(yīng)的關(guān)鍵�？刂品磻�(yīng)變量能夠?qū)Λ@得單PE，雙PE和其他副產(chǎn)物有重大的影響。 neutralize the reaction mixture with formic acid Understood 反應(yīng)混合物用甲酸中和 了解 removal impurities by distillation, Evaportation and distillation are key to remove impurities and recovered excess formaldehyde free of those impurities, otherwise the reaction is dramatically affected. after cooling and crystallization, Understood 通過蒸餾去除雜質(zhì)， 水汽蒸餾去除這些雜質(zhì)和回收這些雜質(zhì)中過剩的自由甲醛是關(guān)鍵，否則反應(yīng)將受到巨大的影響。 之后冷卻和結(jié)晶， 理解 The solution concentrated under vacuum to get sodium formate crystallization and low purity penta, In order to obtain high-purity pentaerythritol,dissolved the low purity penta in hot water,after recrystallization, centrifugation, drying to get final product. Understood, but in four different technologies I know it is preffered to manage molar ratios in the raction in order to crystallize first PE and then by fractionated crystallitazion obtain high purity Formate and low grade PE. 溶液在真空狀態(tài)下的濃縮得到甲酸鈉結(jié)晶和低純度PE， 為了獲得高純度季戊四醇，熱水溶解低純度PE，后重結(jié)晶，離心，干燥得到最終產(chǎn)品。 理解，但在我知道的四個不同的技術(shù)中，較受歡迎的是控制反應(yīng)摩爾比率，來首次結(jié)晶PE，然后分部結(jié)晶獲得高純度的甲酸鹽和低純度的PE。 The formals test result is 5-6%. JR is wondering whether your technical method is similar with above method or totally different. 縮醛測試結(jié)果是5-6％。 JR想知道你的技術(shù)方法與上述方法類似還是完全不同？ Conceptually the method is simmilar but the way the process is organized it is not neccesary the same. I foresee important opportunities for their process. 概念上說方法是類似的，但過程的組織方式?jīng)]有必要的相同。我可以預(yù)見他們過程中有重要機(jī)會。 Will you control the formals to a low spec by adjust the production method? As i explained in the reactor is defined how different reaction including side reations are driven, but formal will be created anyway. 你通過調(diào)整生產(chǎn)方法來控制低濃度的縮醛嗎？ 正如我解釋的反應(yīng)機(jī)理那樣，無論怎么樣控制不同反應(yīng)方式以及副反應(yīng)，都有縮醛產(chǎn)生。 In order to remove formals a special treatment must be done adding specific equipments and assuming that the by products from that treatment has to be recycled to the process in order to keep overall yields under control I hope this explanation is enough for the time being. I they see these answers I am sure they will realize what I am talking about. In my perspective they a nice opportunity to improve their process based on my long term experience. I know trust is a long process in China, but they have to take a decission to start working or just close the option. I have been very open in this mail in order to encourage them to go. 為了除去縮醛必須進(jìn)行特殊處理，添加特定的設(shè)備。如果副產(chǎn)物在處理過程中能夠被回收的話，這樣還能夠提高整體收益。 我希望目前對此的解釋已經(jīng)足夠了。我相信他們看到這些問題的答案，他們會意識到我所談?wù)摰�。在我看來，他們一個很好的機(jī)會提高他們的過程通過我長期的經(jīng)驗。 我知道信任在中國是一個漫長的過程，但他們采取了討論開始工作或恰恰是關(guān)閉了的這個選擇。 我已經(jīng)在此郵件說的非常開放了，以鼓勵他們?nèi)プ觥? |
7樓2011-10-31 16:50:42
metal5555
金蟲 (小有名氣)
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8樓2011-10-31 16:54:40
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