公开(公告)号：US3998940A

公开(公告)日：1976-12-21

申请号：US337306

申请日：1973-03-02

申请人： John L. Shafer

发明人： John L. Shafer

IPC分类号： C01G30/00 ,  C01B27/00 ,  C01B29/00 ,  C01G29/00

CPC分类号： C01G30/005 ,  C01P2006/60

摘要： Antimony trichloride or a solution thereof is added to a basic solution containing a complexing agent, preferably ethylenediaminetetraacetic acid, in which the antimony trichloride is present in an amount up to 5 moles per mole of complexing agent to hydrolyze antimony trichloride to light stable senarmontite.

摘要翻译： 将三氯化锑或其溶液加入到含有络合剂，优选乙二胺四乙酸的碱性溶液中，其中三氯化锑以每摩尔络合剂多达5摩尔量存在，以将三氯化锑水解成光稳定的新戊酸钠。

公开(公告)号：US4624367A

公开(公告)日：1986-11-25

申请号：US602533

申请日：1984-04-20

申请人： John L. Shafer ,  Robert Ehrlich

发明人： John L. Shafer ,  Robert Ehrlich

IPC分类号： B07C5/10 ,  B07C5/00

CPC分类号： B07C5/10 ,  B07C5/366

摘要： In its simplest sense, the present invnetion contemplates a method and apparatus for determining a characteristic or property of randomly oriented, irregularly shaped objects by obtaining an image profile of the object, selecting a plurality of edge points from the image profile and obtaining therefrom a parameter related to the characteristic or property of the object. Having determined the characteristic or property of the objects analyzed, they can be treated appropriately, for example, sorted and the like.

摘要翻译： 在最简单的意义上，本发明考虑了一种用于通过获得对象的图像轮廓来确定随机取向的不规则形状对象的特性或属性的方法和装置，从图像轮廓中选择多个边缘点并从其获得参数 与物体的特征或属性有关。 在确定分析对象的特征或属性后，可以适当地对待，例如排序等。

公开(公告)号：US4260192A

公开(公告)日：1981-04-07

申请号：US13437

申请日：1979-02-21

申请人： John L. Shafer

发明人： John L. Shafer

IPC分类号： E21B43/247 ,  E21B43/28 ,  E21C41/10

CPC分类号： E21B43/281 ,  E21B43/247 ,  Y10S208/951

摘要： Magnesium values are leached from a fragmented mass containing combusted oil shale particles. Magnesium is leached selectively with respect to calcium compounds and silicates with aqueous solutions of a mixture of purgeable, acid-forming gases such as carbon dioxide with a minor proportion of sulfur dioxide. A two-stage leaching process can employ leachant with dissolved carbon dioxide and sulfur dioxide in a first stage and with a carbon dioxide containing solution in the substantial absence of sulfur dioxide in the second stage. An enriched solution containing magnesium values is withdrawn from the fragmented mass and magnesia is recovered from such enriched solution. In one embodiment a fragmented permeable mass of formation particles containing oil shale and carbonates of calcium and magnesium is formed in an in situ oil shale retort. A combustion zone is advanced through the fragmented mass, whereby kerogen in oil shale in the fragmented mass is decomposed in a retorting zone on the advancing side of the combustion zone to produce gaseous and liquid products including shale oil, and particles containing retorted oil shale are combusted for converting magnesium values to more leachable form such as magnesium oxide. Such a process is also used for leaching combusted oil shale from above ground retorting and combustion.

摘要翻译： 镁含量从含有燃烧油页岩颗粒的碎片中浸出。 相对于钙化合物和硅酸盐，镁是以可清除的，酸性气体如二氧化碳和少量二氧化硫的混合物的水溶液选择性地浸出的。 两阶段浸出工艺可以在第一阶段使用溶解二氧化碳和二氧化硫的浸出液，在第二阶段中可以使用二氧化碳溶液基本上不存在二氧化硫。 将含有镁值的富集溶液从碎裂的物质中取出，从富集溶液中回收氧化镁。 在一个实施方案中，在原位油页岩蒸馏器中形成含有油页岩和钙和镁的碳酸盐的形成颗粒的碎裂渗透物质。 燃烧区通过破碎物质前进，由此碎片中的油页岩中的油母质在燃烧区前进侧的蒸煮区中分解，产生包括页岩油在内的气态和液体产物，含有蒸馏油页岩的颗粒为 燃烧用于将镁值转化为更易浸出的形式，如氧化镁。 这种方法也用于从地上蒸馏和燃烧中浸出燃烧的油页岩。

公开(公告)号：US1400188A

公开(公告)日：1921-12-13

申请号：US44073921

申请日：1921-01-28

申请人： SAMUEL T NESBITT ,  JOHN L SHAFER

发明人： SAMUEL TOOKER HARRY

IPC分类号： F04B9/10

CPC分类号： F04B9/10