公开(公告)号：US4488907A

公开(公告)日：1984-12-18

申请号：US538909

申请日：1983-10-04

申请人： Veli Sarkkinen

发明人： Veli Sarkkinen

IPC分类号： C04B24/18 ,  C23F11/00 ,  C07G1/00 ,  C04B9/02

CPC分类号： C23F11/00 ,  C04B24/18

摘要： The present publication describes a process for the preparation of lignosulfonate-based mixtures used in particular as additives of concrete. According to the process of the present invention, the sulfite spent liquor is treated with a nitrating reagent, such as nitric acid or nitrogen dioxide, and the reacted lignosulfonate is separated from the reaction product, and, together with the reacted lignosulfonate, the nitrate and nitrite compounds are separated from the reaction product, and the product mixture formed by the reacted lignosulfonate, nitrate compounds and nitrite compounds is purified in a way known per se. The product prepared in accordance with the process is suitable in particular for the liquefaction of concrete, for accelerating the setting of concrete, and for inhibiting corrosion of concrete reinforcement steels contained in concrete, if any.

摘要翻译： 本出版物描述了用于制备特别是作为混凝土添加剂的木质素磺酸盐基混合物的方法。 根据本发明的方法，亚硝酸盐废液用硝酸或二氧化氮等硝化试剂处理，反应后的木素磺酸盐与反应产物分离，与反应的木质素磺酸盐一起，硝酸盐和 从反应产物中分离出亚硝酸盐化合物，并以本身已知的方式纯化由反应的木质素磺酸盐，硝酸盐化合物和亚硝酸盐化合物形成的产物混合物。 根据该方法制备的产品特别适用于混凝土的液化，用于加速混凝土的凝固和抑制混凝土中所含的混凝土钢筋的腐蚀（如果有的话）。

公开(公告)号：US4306912A

公开(公告)日：1981-12-22

申请号：US154879

申请日：1980-05-30

申请人： Bengt Forss

发明人： Bengt Forss

IPC分类号： C04B7/12 ,  C04B7/14 ,  C04B7/26 ,  C04B28/02

CPC分类号： C04B7/12 ,  C04B28/08 ,  C04B7/13 ,  C04B7/1535 ,  C04B7/19 ,  Y02P40/143 ,  Y02W30/92

摘要： A process for producing a binder (cement) to be used in slurry, mortar, or concrete having a low water-to-cement ratio. As raw-material for the binder is used at least 50% by weight of a hydraulic material, such as slag, technical pozzolanas and/or natural pozzolanas. The hydraulic material is ground to a specific surface of at least 400 m.sup.2 /kg. To the raw-material is added 0.1 to 5% by weight of a plasticizing material, such as a sulphonated polyelectrolyte. To the raw-material are also added in total 0.5 to 8% by weight of sodium carbonate and/or sodium hydroxide. Added in small amounts, the sodium carbonate and the sodium hydroxide, separately or in combination, considerably shorten the hardening time of the concrete, yield excellent strengths, and make it possible to use cheap raw-materials.

摘要翻译： 一种用于水泥比低的浆料，砂浆或混凝土中的粘合剂（水泥）的制造方法。 作为粘合剂的原料，使用至少50重量％的水泥材料，例如炉渣，技术火山灰和/或天然火山灰。 将水硬性材料研磨至至少400m2 / kg的比表面。 向原料中加入0.1〜5重量％的增塑材料，如磺化聚电解质。 总原料中也加入0.5〜8重量％的碳酸钠和/或氢氧化钠。 少量加入，碳酸钠和氢氧化钠分别或组合显着缩短混凝土的硬化时间，产生优异的强度，并且可以使用廉价的原料。

公开(公告)号：US4302110A

公开(公告)日：1981-11-24

申请号：US88190

申请日：1979-10-25

申请人： Ossi Niemi

发明人： Ossi Niemi

IPC分类号： B01F15/02 ,  B28C7/06 ,  B28C5/12 ,  B01F7/00

CPC分类号： B28C7/067 ,  B01F15/0235

摘要： A concrete mixing apparatus with a stationary mixing container and an upper circular cover plate arranged to rotate in relation to said container. The apparatus is provided with a machinery for rotating said cover plate and with a discharge channel for one or several materials. The discharge channel is arranged above the cover plate in substantially coaxial relation thereto. The apparatus further comprises a filling channel, the lower end of which is fastened onto said cover plate and the upper end of which is arranged in substantially coaxial relation to said discharge channel.

摘要翻译： 一种具有固定混合容器和上圆形盖板的混凝土搅拌装置，其被布置为相对于所述容器旋转。 该设备设置有用于旋转所述盖板和用于一种或多种材料的排出通道的机械。 排出通道以与其基本上同轴的关系布置在盖板的上方。 该装置还包括填充通道，其下端固定在所述盖板上，其上端与所述排放通道基本上同轴地布置。

公开(公告)号：US3144403A

公开(公告)日：1964-08-11

申请号：US15487961

申请日：1961-11-24

申请人： SUN OIL CO

发明人： JACOB LAWRENCE N

IPC分类号： C10G27/04

CPC分类号： C10G27/04

公开(公告)号：US4450106A

公开(公告)日：1984-05-22

申请号：US511994

申请日：1983-07-08

申请人： Bengt Forss

发明人： Bengt Forss

IPC分类号： C04B24/18 ,  C04B33/18 ,  C07G1/00 ,  D21C3/20

CPC分类号： C08H6/00 ,  C04B24/18 ,  C04B33/18

摘要： A lignin product for dispersing cement and other finely divided mineral materials, such as clays and equivalent, and for plasticizing their water mixtures. The product is large-molecular such that at least 40 percent of the material consists of molecules whose molecular weight is higher than 10,000. The sulfonation degree of said lignin product is lower than 0.4. The product is obtained from a cellulose cooking to which have been added catalysts preventing the splitting and dissolution of carbohydrates, such as amines, quinone and/or antraquinone derivatives or equivalent, in order to stabilize the cellulose and the hemicellulose during the cooking. The lignin product has been isolated from the spent liquor by using ultrafiltration, and/or complementary ion exchange.

摘要翻译： 木质素产品，用于分散水泥和其他细碎矿物材料，如粘土和等同物，并使其水混合物增塑。 该产品是大分子的，使得至少40％的材料由分子量高于10,000的分子组成。 所述木质素产物的磺化度低于0.4。 该产品从已经加入催化剂的纤维素烹饪得到，以防止碳水化合物如胺，醌和/或蒽醌衍生物或等同物的分解和溶解，以便在烹饪期间稳定纤维素和半纤维素。 已经通过使用超滤和/或互补离子交换从废液中分离出木质素产物。