公开(公告)号：US3814595A

公开(公告)日：1974-06-04

申请号：US33708973

申请日：1973-03-01

申请人： INT MINERALS & CHEM CORP

发明人： BOEGLIN A ,  CHOWNING E

IPC分类号： C05D1/02 ,  C05D11/00

CPC分类号： C05D1/02 ,  C05D5/00 ,  C05G3/0058

摘要： FINE LANGBEINITE PARTICLES ARE GRANULATED BY FIRST PREPARING A LANGBEINITE MATERIAL SIZED SUCH AS IT IS NOT MORE THAN 10% +35 MESH, 15% TO 35% -20 MESH, WITH THE REMAINDER BEING -35 +200 MESH. THE SIZED LANGBEINITE IS WETTED TO A MOISTURE CONTENT OF 6.5 TO 11.5% BE WEIGHT OF THE LANGBEINITE. THE RESULTING MASS IS GRANULATED, CURED FOR AT LEAST TWO HOURS, AND DRIED TO A MOISTURE CONTENT OF 2% TO 5%. PRODUCT TEMPERATURE IS MAINTAINED BELOW A MAXIMUN OF300* F. AND THE MAXIMUM TEMPERATURE OF GASES CONTACTING THE PRODUCT IS MAINTAINED BELOW 1200* F.

公开(公告)号：US3853490A

公开(公告)日：1974-12-10

申请号：US32550473

申请日：1973-01-22

申请人： INT MINERALS & CHEM CORP

发明人： BOEGLIN A ,  CHOWNING E ,  TSCHAPPLER S

IPC分类号： B01J2/12 ,  C01D5/00 ,  C05D1/00 ,  C01D5/18

CPC分类号： C01D5/004 ,  B01J2/12 ,  C05D1/005

摘要： Potassium sulfate crystals are granulated by first preparing a potassium sulfate feed material sized such as it is at least 50% -6 +65 mesh, 10% to 30% -200 mesh, with the remainder being -65 +200 mesh. The sized crystals are wetted to a moisture content of 7 to 12 percent by weight of the crystals. A small amount of a surface active agent such as disodium 4-dodecylated oxydibenzene sulfonate is incorporated in the admixture, and the mass granulated and dried in a rotating, tubular granular drier. Product temperature is maintained below a maximum of 550*F. and the maximum temperature of gases contacting the product is maintained below 1,200*F.

摘要翻译： 硫酸钾晶体通过首先制备尺寸为例如至少为50％-6 +65目，10％至30％-200目，其余为-65 +200目的的硫酸钾进料材料而造粒。 将大小的晶体润湿至水分含量为晶体重量的7至12％。 将少量表面活性剂如4-十二烷基氧化二苯磺酸二钠加入到混合物中，并将其在旋转的管状颗粒状干燥器中造粒并干燥。 产品温度保持在550°F以下，接触产品的气体的最高温度保持在1200°F以下。

公开(公告)号：US3843772A

公开(公告)日：1974-10-22

申请号：US28890172

申请日：1972-09-14

申请人： INT MINERALS & CHEM CORP

发明人： BOEGLIN A

IPC分类号： C01D5/10 ,  C01D5/00 ,  C01D11/02 ,  C01D11/04

CPC分类号： C01D5/10

摘要： Wherein: R1 is alkyl, R2 is H or alkyl, R1 + R2 total 8-18 carbon atoms, N IS 1 TO 12, AND X is H, Na, K, Mg , NH4 or triethanol amine.

Potassium sulfate crystals made by the reaction in aqueous medium of potassium chloride with a magnesium sulfate and potassium magnesium double sulfate can be recovered, free of the usual discoloring, and in enhanced crystal size by incorporating in the medium a small amount of a compound of the formula: