gonggong 2011-12-31 21:55 IP:重庆
一、糠醛两步法生产工艺研究 糠醛是一种重要的化工原料,具有广阔的应用前景。目前,我公司生产糠醛主要采用一步法生产,一步法蒸汽消耗量大,一般吨醛消耗蒸汽18~25t,且该法糠醛收率最高只有6O%,原料得不到充分利用,并产生大量的废渣。随着糠醛工业的发展,以及原料综合利用要求的提高,发展两步法糠醛生产工艺,分离原料中的纤维素和半纤维素并分别加以利用,是糠醛工业的必然发展趋势,但是两步法工艺较为复杂,设备投资高,第二步脱水工艺条件不十分成熟, 因此公司希望可以与其他单位合作,共同研究糠醛两步法生产工艺,以达到提高收率,抑制生成的糠醛发生副反应,并提高原料综合利用率。 二、糠醛生产中纤维素的深度开发 1、生物基材料---糠醛生产中纤维素的深度开发; 2、二氧化硫脲漂白高岭土的应用技术; 3、二氧化硫脲在靛蓝印染上的应用 三、糠醛渣制造生物柴油深度开发研究 我公司水解釜排出来的废渣,经过锅炉烟道气流化干燥后直接进入锅炉去燃烧。锅炉燃烧所产生的烟道气经旋风除尘,湿法脱硫,硫化干燥水解废渣,最后再进入高空烟囱排放。但是由于糠醛渣含水率高,发热值低,燃烧处理时利用率较低。因此,糠醛渣深度开发、有效利用成为糠醛生产企业的一大难题。 由于生物柴油具有优良的环保特性,良好的燃料性能,并具有可再生性,开发糠醛渣制造生物柴油新技术,解决企业糠醛渣废固利用,增加效益,提升企业技术水平和经济效益。 因此公司希望可以与其他单位合作,共同研发布   [更多]
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¥20000.00
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xjhww淘 2017-01-23 10:42 IP:重庆
求购药品电子监管码,即药品包装上的条形码,是药品的商品条码,以下为具体要求: 1.基本包含所有国内上市药品和药品的全套信息,包括:每类药品的所有厂家,每个厂家不同的剂型和不同包装规格的条形码 2.提供格式以EXCEL电子版本格式   [更多]
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悬赏
¥20000.00
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xiaomaguohe 2015-05-25 10:20 IP:济南
合理的大生产工艺即可或中试工艺   [更多]
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¥20000.00
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lyj19721101 2015-01-27 15:01 IP:马鞍山
抑制细胞外神经信号的作用可以通过抑制受体或去除配位体来产生。我们需要一个实例或证据来证明抑制受体和损耗配体是怎么阻断信号的,比如可以变构小分子或大分子或竞争性抑制。具体看下面链接: https://www.innocentive.com/ar/challenge/9933720 AWARD: $20,000 USD | DEADLINE: 2/25/15 | ACTIVE SOLVERS: 19 | POSTED: 1/26/15 Inhibition of extracellular signaling can occur through an inhibition of a receptor or removal of a ligand. What evidence is there that one method of inhibition is more efficient or efficacious than the other at blocking signaling? The Seeker is specifically looking for well-supported examples of receptor/ligand inhibition where both methods of inhibition exist. This Challenge requires only a written proposal. Source: InnoCentive Challenge ID: 9933720 Challenge Overview Inhibition of extracellular neuronal signaling can occur through the inhibition of a receptor or removal of a ligand. What evidence is there (or lack of) that one method of inhibition (inhibition of the receptor versus depletion of the ligand) is more efficient or efficacious than the other at blocking signaling? Inhibition can be allosteric or competitive, small molecule or large molecule. The Seeker is specifically looking for well-supported examples of receptor/ligand inhibition where both methods of inhibition exist. Submissions to this Challenge must be received by 11:59 PM (US Eastern Time) on February 25, 2015. Late submissions will not be considered.   [更多]
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¥20000.00
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13815927572ph633 2019-10-24 15:23 IP:未知
我公司拟生产如下产品:医用棉签,医用薄膜手套,医用绷带,医用棉球,一次性口罩,一次性帽子,一次性使用止血带,一次性使用引流袋,一次性使用负压引流袋,液体敷料,医用冷敷贴。 如有全套备案资料者请联系。   [更多]
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¥20000.00
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corxing 2018-04-19 17:53 IP:未知
实单求购伐昔洛韦杂质N 10mg/20mg/100mg 能提供的请联系17621899918   [更多]
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¥20000.00
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z109030487 2017-05-25 14:34 IP:郑州
产品要求: 1.产品量25g,90%以上纯度 2.需提供HNMR谱图及其他确定纯度和结构的谱图 3.可以签署购买协议 4.一经核对信息及产品符合要求,可以直接获得悬赏金额1.8万元   [更多]
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¥20000.00
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xjhww淘 2016-11-04 15:33 IP:重庆
求购药品电子监管码,即药品包装上的条形码,是药品的商品条码,以下为具体要求: 1.基本包含所有国内上市药品和药品的全套信息,包括:每类药品的所有厂家,每个厂家不同的剂型和不同包装规格的条形码 2.提供格式以EXCEL电子版本格式   [更多]
悬赏:
悬赏
¥20000.00
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管理员 2011-09-06 10:37 IP:重庆
  Enriching Low-Abundance Serum & Plasma Proteins   AWARD: $30,000 USD | DEADLINE: 10/01/11 | ACTIVE SOLVERS: 254 | POSTED: 8/01/11   Source: InnoCentive Challenge ID: 9932714 Type: Theoretical-licensing   Detailed Description & Requirements   Concentrations of proteins in serum and plasma span up to 10 orders of magnitude – e.g. from serum albumin (50 mg/ml) to some cytokines and chemokines (<5 pg/ml)   Protein molecules most useful to researchers exist at levels that are approximately at or below the 10,000 pg/ml range. Detection and quantification of these low-abundance proteins is obscured by the presence of high abundance proteins. Current methods for reducing the concentration of high-abundance proteins are either inefficient, targeted at certain proteins, or introduce bias and other artifacts.   The Seeker is looking to identify novel methods to reliably reduce or eliminate high abundance proteins so that detection of protein analytes present at the 1-10 ng/ml scale or lower may be accurately detected.   The Seeker envisages that a sample preparation techniques may be the most likely route to a solution. However, alternative approaches are also welcomed. The Seeker is highly experienced in sample preparation technologies for reduction of high-abundance proteins & is not interested in simple proposals of commercially available, or published, technologies and techniques.   The Seeker is aware of the following ‘sample enrichment’ technologies for reducing the concentration of high abundance proteins from serum & plasma. The techniques are listed together with their limitations for the Seeker:   Immunoaffinity depletions– depletions are extremely specific to the antigens the antibodies target. Commercially available kits commonly deplete 6-20 high abundance proteins with more than 90% efficiency. Although this enables detection of more low-abundance proteins, the column-based process induces some bias in low-abundance protein   [更多]
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¥20000.00
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tan1990 2016-07-05 10:05 IP:重庆
标题:求 维生素D滴剂或维生素D2软胶囊一致性评价 详细要求: 需求名称:维生素D滴剂或维生素D2软胶囊一致性评价专家 具体要求:寻找一个维生素D滴剂或维生素D2软胶囊一致性评价方面的专家或团队,要求擅长一致性评价相关工作和法规,有维生素D的研究背景,能够满足一致性评价方面的要求,有一致性评价成功案例的优先。 交稿方式:直接点击交稿在线交稿就是了,我会每天过来看的,谢谢各位   [更多]
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¥20000.00
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