公开(公告)号：US5520729A

公开(公告)日：1996-05-28

申请号：US255874

申请日：1994-06-08

Applicant: Hanns-Jorg Engert ,  Thomas Koslowski

Inventor： Hanns-Jorg Engert ,  Thomas Koslowski

IPC: C04B22/08 ,  C04B14/06 ,  C04B24/14 ,  C04B28/06 ,  C04B28/18 ,  C04B38/10 ,  C04B40/02 ,  C04B103/48 ,  C04B111/40 ,  E04B1/80 ,  C04B7/34

CPC classification number: C04B28/18 ,  C04B2111/60 ,  C04B2111/62 ,  C04B2201/10

Abstract: The invention relates to a process for producing heat-insulating material from silicate-containing material, hydrated lime, water, foam and a reactive aluminates-containing quick-setting cement, from which a pourable raw mixture is produced which is poured into molds, the green moldings formed in the molds being demolded and autoclaved after sufficient setting. To achieve very low bulk densities, it is provided that, as silicate-containing material, a quartz powder with a specific surface area according to BET of at least approx. 3 m.sup.2 /g, in particular approx. 4 to 5 m.sup.2 /g, is used, the raw mixture is produced with a weight ratio of water/solids (excluding foam) of at least approx. 1.25 and an essentially stoichiometric amount, with respect to the virtually complete reaction of the quartz powder and the reactive aluminates, of hydrated lime with a surface area according to BET of at least approx. 15 m.sup.2 /g and the green moldings poured into molds are, after sufficient setting, demolded with the exception of a mold base and are autoclaved disposed on the mold base.

Abstract translation: 本发明涉及一种从含硅酸盐材料，熟石灰，水，泡沫和含活性铝酸盐的快速凝固水泥生产绝热材料的方法，从该混合物中制备可倾倒的原料混合物，将其倒入模具中， 模具中形成的绿色模制品在充分固化后被脱模并高压灭菌。 为了实现非常低的堆积密度，条件是，作为含硅酸盐的材料，具有根据BET的比表面积的石英粉末至少约为 3 m2 / g，特别是约 使用4至5m 2 / g，将生产混合物的水/固体（不包括泡沫）的重量比至少约为 1.25和基本上化学计量的量，相对于石英粉末和反应性铝酸盐的实际上完全的反应，熟石灰的表面积根据BET至少约为 15m2 / g，浇注在模具中的绿色模制品在足够的固化之后，除了模具基底外，还被脱模，并被高压灭菌处理在模具底座上。

公开(公告)号：US5258072A

公开(公告)日：1993-11-02

申请号：US891538

申请日：1992-06-01

Applicant: Sridhar Gopalkirshnan ,  Michael Roznowski

Inventor： Sridhar Gopalkirshnan ,  Michael Roznowski

IPC: C04B24/12 ,  C04B24/32 ,  C04B28/02 ,  C09K8/46 ,  C09K8/487 ,  C04B14/00 ,  C04B24/00 ,  E21B33/13

CPC classification number: C04B28/02 ,  C04B24/122 ,  C04B24/32 ,  C09K8/46 ,  C09K8/487 ,  C04B2103/406 ,  C04B2103/46 ,  C04B2103/50 ,  C04B2201/10

Abstract: An oil and gas well cementing composition has styrene/butadiene latex and a combination of nonionic surfactants for improved physical properties, especially fluid loss. The composition has no anionic surfactants.