Process for the dry desulfurization of a combustion gas
    2.
    发明授权
    Process for the dry desulfurization of a combustion gas 失效
    燃烧气体干法脱硫的方法

    公开(公告)号:US5993765A

    公开(公告)日:1999-11-30

    申请号:US980716

    申请日:1997-12-01

    摘要: The process for dry desulfuration of a combustion gas includes providing an electrostatic precipitator (12) or an inertia force separator for dedusting; dedusting the combustion gas at temperatures of 100.degree. C. to 180.degree. C. in the electrostatic precipitator or at temperatures of 100.degree. C. to 700.degree. C. in the inertia force separator to form a partially dedusted combustion gas with a solids content of 5 to 40 g/Nm.sup.3 ; mixing the partially dedusted combustion gas with CaO and/or Ca(OH).sub.2 and optionally CaCO.sub.3 to form a gaseous mixture; providing a circulating fluidized bed device including a fluidized-bed reactor (8) and a downstream solids separator (7) with a return line (17) to the fluidized-bed reactor (8), the solids separator (7) being either another electrostatic precipitator or a bag filter; feeding the gaseous mixture and water into the fluidized-bed reactor (8); cooling the gaseous mixture in the fluidized-bed reactor (8) to a temperature of 50.degree. C. to 90.degree. C.; withdrawing a solids-containing gas from an upper portion of the fluidized-bed reactor (8); feeding the solids-containing gas into the solids separator (7) to form separated solids and a cleaned gas; recycling one portion of the separated solids into the fluidized-bed reactor (8) and mixing another portion of the separated solids with the combustion gas.

    摘要翻译: 燃烧气体的干式脱硫方法包括提供静电除尘器(12)或用于除尘的惯性力分离器; 在静电除尘器中在100℃至180℃的温度下或在惯性力分离器中在100℃至700℃的温度下对燃烧气体进行除尘,以形成部分除尘的燃烧气体,其固体含量为 5〜40g / Nm3; 将部分除尘的燃烧气体与CaO和/或Ca(OH)2和任选的CaCO 3混合以形成气体混合物; 提供包括流化床反应器(8)和具有到流化床反应器(8)的返回管线(17)的下游固体分离器(7)的循环流化床装置,固体分离器(7)是另一个静电 除尘器或袋式过滤器; 将气态混合物和水进料到流化床反应器(8)中; 将流化床反应器(8)中的气体混合物冷却至50℃至90℃的温度; 从流化床反应器(8)的上部排出含固体的气体; 将含固体的气体进料到固体分离器(7)中以形成分离的固体和清洁的气体; 将一部分分离的固体回收到流化床反应器(8)中,并将另一部分分离的固体与燃烧气体混合。

    Water-based adhesive
    3.
    发明授权
    Water-based adhesive 失效
    水性胶粘剂

    公开(公告)号:US5962576A

    公开(公告)日:1999-10-05

    申请号:US973285

    申请日:1998-02-13

    摘要: A water-based adhesive is disclosed which contains an aqueous dispersion of one or more phenol resins stabilized by one or more polyacrylates, one or more latexes with one or more halogenated polyolefins and one or more cross-linking agents. The invention also includes a method of priming a substrate in which the substrate is coated with the adhesive as a primer and then with a cover cement and finally bonded to rubber under vulcanization.

    摘要翻译: PCT No.PCT / EP96 / 02281 Sec。 371日期1998年2月13日 102(e)1998年2月13日PCT PCT 1996年5月28日PCT公布。 出版物WO96 / 38510 日期1996年12月5日公开了一种水性粘合剂,其包含一种或多种由一种或多种聚丙烯酸酯稳定的酚醛树脂的水性分散体,一种或多种具有一种或多种卤代聚烯烃和一种或多种交联剂的胶乳。 本发明还包括一种底漆的方法,其中基材用粘合剂作为底漆涂覆,然后用覆盖水泥涂覆,最后在硫化下粘合到橡胶上。

    Process of producing methanol
    4.
    发明授权
    Process of producing methanol 失效
    生产甲醇的方法

    公开(公告)号:US5827901A

    公开(公告)日:1998-10-27

    申请号:US792325

    申请日:1997-01-31

    IPC分类号: C07C29/151 C07C27/00

    摘要: Methanol is catalytically produced from a synthesis gas containing hydrogen and carbon oxides on copper-containing catalysts at pressures in the range from 20 to 120 bar and temperatures in the range from 130.degree. to 350.degree. C. The synthesis gas is first of all passed through a first synthesis reactor, in which the catalyst is provided in tubes surrounded by water as a coolant which is boiling at an elevated pressure. From the first reactor a first mixture containing gases and methanol vapor is withdrawn and passed through a second synthesis reactor. In the second reactor the catalyst is cooled with synthesis gas.

    摘要翻译: 在含有氢的催化剂的氢气和碳氧化物的合成气中,在20至120巴的压力和130至350℃的温度范围内,催化产生甲醇。合成气首先通过 第一合成反应器,其中催化剂设置在由水包围的管中,作为在升高的压力下沸腾的冷却剂。 从第一反应器中取出含有气体和甲醇蒸气的第一混合物并通过第二合成反应器。 在第二反应器中,催化剂用合成气冷却。

    Process for treating gold-containing sulfide ores
    5.
    发明授权
    Process for treating gold-containing sulfide ores 失效
    处理含金硫化矿的方法

    公开(公告)号:US5804150A

    公开(公告)日:1998-09-08

    申请号:US805409

    申请日:1997-02-24

    CPC分类号: C22B11/04 C22B1/02

    摘要: The ore which contains gold and at least one of the metals silver, copper, nickel, zinc or iron is calcined at temperatures in the range from 500.degree. to 900.degree. C. with the addition of oxygen-containing gas, thereby producing a metal-oxide-containing solids mixture and a SO.sub.2 -containing exhaust gas. The SO.sub.2 containing exhaust gas is brought in contact with aqueous solution, thereby producing a sulfite-containing solution. The solids mixture from the calcination is cooled to temperatures in the range from 50.degree. to 300.degree. C. and is stirred up with the sulfite-containing solution. Metal oxides are dissolved, and a sulfate-containing solution os formed. In a first separating zone, the sulfate-containing solution is separated from the solids, and either the solids are supplied to a gold leaching or the sulfate-containing solution is subjected to a further treatment for the separation of nonferrous metals.

    摘要翻译: 含有金和银,铜,镍,锌或铁中的至少一种金属的矿石在加入含氧气体的同时在500-900℃的温度下煅烧, 含氧化物的固体混合物和含SO 2的废气。 使含SO 2的废气与水溶液接触,从而产生含亚硫酸盐的溶液。 将来自煅烧的固体混合物冷却至50℃至300℃的温度,并与含亚硫酸盐的溶液一起搅拌。 溶解金属氧化物,形成含硫酸盐溶液。 在第一分离区中,将含硫酸盐的溶液与固体分离,并将固体供应至金浸出,或者将含硫酸盐溶液进一步处理以分离有色金属。

    Process for the phosphatising treatment of steel strip or sheet
galvanized on one side or alloy galvanized on one side
    6.
    发明授权

    公开(公告)号:US5795408A

    公开(公告)日:1998-08-18

    申请号:US596220

    申请日:1996-07-08

    摘要: The process forms a phosphate coating on a steel strip or sheet having a galvanized or alloy galvanized side and a steel side so that the phosphate coating is only present on the galvanized or alloy galvanized side. This process includes contacting the galvanized or alloy galvanized side of the steel strip or sheet with a phosphatizing solution for 4 to 20 seconds at a temperature of from 45.degree. C. to 80.degree. C. The phosphatizing solution has an S value of from 0.08 to 0.30 and contains 0.5 to 5 g/l zinc, 3 to 20 g/l P.sub.2 O.sub.5, 0.020 to 0.2 g/l nitrite, 3 to 30 g/l nitrate and 0.2 to 2.5 g/l complexing agent for iron. Chelate forming substances, such as tartaric acid, citric acid, ethylenediamine-tetraacetic acid, nitrilotriacetic acid and/or oxalic acid, may be used as the complexing agent for iron. The phosphatizing solutions may also contain other bivalent cations, particularly manganese and/or nickel cations.

    摘要翻译: PCT No.PCT / EP94 / 02510 Sec。 371日期:1996年7月8日 102(e)日期1996年7月8日PCT提交1994年7月29日PCT公布。 出版物WO95 / 04842 日期1995年2月16日该方法在具有镀锌或合金镀锌侧和钢侧的钢带或片材上形成磷酸盐涂层,使得磷酸盐涂层仅存在于镀锌或合金镀锌侧。 该方法包括在45℃至80℃的温度下将钢带或片材的镀锌或镀锌层与磷酸盐溶液接触4至20秒。磷酸盐溶液的S值为0.08至 0.30,含有0.5〜5g / l的锌,3〜20g / l的P2O5,0.020〜0.2g / l的亚硝酸盐,3〜30g / l的硝酸盐和0.2〜2.5g / l的铁络合剂。 可以使用螯合物形成物质,例如酒石酸,柠檬酸,乙二胺四乙酸,次氮基三乙酸和/或草酸作为铁的络合剂。 磷酸盐溶液还可以含有其它二价阳离子,特别是锰和/或镍阳离子。

    Process and apparatus for separating polycyclic and polyhalogenated
hydrocarbons from exhaust gas of a sintering process
    7.
    发明授权
    Process and apparatus for separating polycyclic and polyhalogenated hydrocarbons from exhaust gas of a sintering process 失效
    用于从烧结过程的废气中分离多环和多卤代烃的方法和设备

    公开(公告)号:US5620673A

    公开(公告)日:1997-04-15

    申请号:US513527

    申请日:1995-08-10

    IPC分类号: B01D53/10 B01D53/70 C01B7/00

    摘要: The process for separating toxic organic substances from a dust-containing exhaust gas from a sintering process, particularly a process of sintering iron ore, includes bringing the entire exhaust gas from a sintering conveyor into contact with clays, layer silicate, and diatomaceous earth or mixtures thereof within a gas-solids suspension for a reaction time of from 0.5 to 10 seconds above the dew point at a temperature from 90.degree. to 180.degree. C. and at a velocity from 6 to 200 meters per second. The median particle diameter, d.sub.50, of the solid adsorption agent in the gas-solids suspension is from 5 to 100 micrometers and the mean suspension density of the gas-solids suspension is from 5 to 500 g solids per sm.sup.3 exhaust gas. The dust and other solids are subsequently jointly separated from the gas-solids suspension, and part of the separated solids is again contacted with the exhaust gas from the sintering conveyor. An apparatus for carrying out the process is also described.

    摘要翻译: 从烧结过程,特别是烧结铁矿石的过程中分离有毒有机物质与含尘废气的过程包括使来自烧结输送机的整个废气与粘土,硅酸盐和硅藻土或混合物接触 其在气固体悬浮液中的反应时间为高于露点0.5至10秒,温度为90至180℃,速度为6至200米/秒。 气固体悬浮液中固体吸附剂的中值粒径d50为5至100微米,气体 - 固体悬浮液的平均悬浮密度为每sm3废气5至500g固体。 灰尘和其它固体随后与气体 - 固体悬浮液共同分离,并且部分分离的固体再次与来自烧结输送机的废气接触。 还描述了用于执行该过程的装置。

    Process of producing wood charcoal in a moving bed
    8.
    发明授权
    Process of producing wood charcoal in a moving bed 失效
    在移动床上生产木炭的过程

    公开(公告)号:US5584970A

    公开(公告)日:1996-12-17

    申请号:US400167

    申请日:1995-03-07

    IPC分类号: C10B53/02 C10B47/20

    摘要: The biomass, particularly lump wood, is supplied to a shaft reactor at its top and is initially preheated to temperatures of about 150.degree. to 280.degree. C. and dried by a counterflowing hot gas. This is followed by a treatment in an underlying carbonizing zone, the upper portion of which is supplied with hot purging gas at a temperature of 250.degree. to 600.degree. C. The hot purging gas flows downwardly through the carbonizing zone co-currently with the wood. A gas mixture which contains purging gas and gas produced by carbonization is withdrawn from the lower portion of the carbonizing zone and is at least in part combusted outside the shaft reactor to produce a combustion gas, which is used at least in part as hot purging gas.

    摘要翻译: 生物质,特别是块状木材,在其顶部被供应到竖井反应器,并且最初被预热至约150℃至280℃的温度,并通过逆流热气体干燥。 然后在下面的碳化区进行处理,其上部在250℃至600℃的温度下供应热吹扫气体。热的吹扫气体向下流过与木材共同的碳化区域 。 包含吹扫气体和通过碳化产生的气体的气体混合物从碳化区的下部排出,并且至少部分地在轴反应器外部燃烧以产生燃烧气体,其至少部分地用作热吹扫气体 。

    Process of purifying exhaust gases produced by combustion of waste
materials
    9.
    发明授权
    Process of purifying exhaust gases produced by combustion of waste materials 失效
    净化废物燃烧产生的废气净化工艺

    公开(公告)号:US5575982A

    公开(公告)日:1996-11-19

    申请号:US358150

    申请日:1994-12-16

    摘要: The process purifies exhaust gas produced by combustion of waste materials including garbage, industrial wastes and/or sewage sludge. The exhaust gas is contaminated particularly with dust, SO.sub.2, HCl, HF, Hg, mercury compounds, and dioxins and furans and can be expected to have an oxygen content. In the process, the exhaust gas is treated in a spray absorber with a suspension of Ca(OH).sub.2 ; the exhaust gas is subsequently filtered in two successive filteration stages; the exhaust gas leaving the first filtering stage still has an SO.sub.2 content of from 20 to 500 mg/sm.sup.3 ; activated carbon, preferably hearth furnace coke, is introduced into the exhaust gas stream before the second filtering stage; and the exhaust gas is finally scrubbed with a mixture which contains water and NaOH, Na.sub.2 CO.sub.3, Ca(OH).sub.2 and CaCO.sub.3 in a dissolved or suspended state.

    摘要翻译: 该过程净化了废物(包括垃圾,工业废物和/或污水污泥)燃烧产生的废气。 废气特别被粉尘,SO2,HCl,HF,Hg,汞化合物,二恶英和呋喃污染,并且可以预期具有氧含量。 在该过程中,废气在具有Ca(OH)2的悬浮液的喷雾吸收器中处理; 废气随后在两个连续的过滤阶段中过滤; 离开第一过滤阶段的废气仍然具有20至500mg / sm 3的SO 2含量; 在第二过滤阶段之前将活性炭,优选炉床焦炭引入废气流中; 并且最终用含有水和NaOH,Na 2 CO 3,Ca(OH)2和CaCO 3的溶解或悬浮状态的混合物洗涤废气。