公开(公告)号：US3773066A

公开(公告)日：1973-11-20

申请号：US3773066D

申请日：1972-01-17

Applicant: ALLIED CHEM

Inventor： TYRNER J ,  WATSON W

IPC: F16K11/065 ,  F16K31/163 ,  F16K11/07

CPC classification number: F16K11/065 ,  Y10T137/4442 ,  Y10T137/5544 ,  Y10T137/87169

Abstract: Valve structure for reversing gas flow comprising a housing containing a pair of disposed cylinder chambers, a pair of disposed manifold chambers, inlet and outlet means provided in each pair of said cylinder and manifold chambers, piston means provided in each cylinder chamber positioned therein to selectively effect flow between inlet means in said manifold chamber and outlet means in said cylinder chamber and flow between inlet means in said cylinder chamber and outlet means in said manifold chamber, said pistons slideably arranged in said cylinder chambers and fixedly mounted on piston rods, said rods extending slideably through the walls of the manifold chamber, and driving means connected to said piston rods for inducing said rods to reciprocate thereby effecting sliding motion of the pistons within said cylinder chambers and thereby reverse the flow between the inlet and outlet means in said cylinder chambers.

Abstract translation: 用于反转气流的阀结构，包括容纳一对设置的气缸室的壳体，一对设置的歧管腔，设置在每对所述气缸和歧管腔中的入口和出口装置，设置在每个气缸室中的活塞装置， 所述歧管室中的入口装置与所述气缸室中的出口装置之间的效应流动以及所述气缸室中的入口装置和所述歧管腔室中的出口装置之间的流动，所述活塞可滑动地布置在所述气缸室中并固定地安装在活塞杆上，所述杆 可滑动地延伸穿过歧管腔的壁，以及连接到所述活塞杆的驱动装置，用于引导所述杆往复运动，从而实现活塞在所述气缸室内的滑动运动，从而使所述气缸室中的入口和出口装置之间的流动反向 。

公开(公告)号：US3755551A

公开(公告)日：1973-08-28

申请号：US3755551D

申请日：1971-05-27

Applicant: ALLIED CHEM

Inventor： BRIDWELL B ,  CARLSON E ,  EDGECOMB R ,  WATSON W

IPC: C01B17/04

CPC classification number: C01B17/0478

Abstract: THIS INVENTION RELATES TO A METHOD FOR THE REDUCTION OF SULFUR DIOXIDE BY A PROCESS WHICH COMPRISES CONVERTING THE SULFUR DIOXIDE TO ELEMENTAL SULFUR AND/OR OTHER GASEOUS SULFUR COMPOUNDS IN THE PRESENCE OF A CALCIUM ALUMINATE CATALYST AND GASEOUS HYDROCARBON AT A TEMPERATURE WITHIN THE RANGE FROM 1500*F. TO 2600*F.

公开(公告)号：US3718736A

公开(公告)日：1973-02-27

申请号：US3718736D

申请日：1971-09-20

Applicant: ALLIED CHEM

Inventor： WATSON W ,  TROEGER R

IPC: C01B7/19 ,  C01B7/22 ,  C01F11/46

CPC classification number: C01B7/192

Abstract: Hydrogen fluoride is produced continuously by reacting calcium fluoride (fluorspar) and sulfuric acid, at temperatures between about 250* and 600*F. in the presence of more than 3 parts calcium sulfate per part of by-product calcium sulfate produced from said reaction.

Abstract translation: 氟化氢（氟石）和硫酸在大约250°至600°F之间的温度下，在每次由所述反应产生的副产物硫酸钙的3份以上的硫酸钙存在下，连续生产氟化氢。