Process for removing solvent from the raffinate of extracted phosphoric
acid and for preparing phosphate salts
    21.
    发明授权
    Process for removing solvent from the raffinate of extracted phosphoric acid and for preparing phosphate salts 失效
    从提取的磷酸的萃余液中除去溶剂并制备磷酸盐的方法

    公开(公告)号:US4132540A

    公开(公告)日:1979-01-02

    申请号:US816891

    申请日:1977-07-18

    CPC classification number: C05B7/00

    Abstract: When crude wet process phosphoric acid is solvent extracted, an aqueous raffinate containing phosphoric acid and a small amount of solvent is produced as a by-product. Certain materials are added to the raffinate, in order to produce two phases, one aqueous and the other of solvent. The phases are separated, the solvent recycled for reuse in a solvent extraction process and the aqueous phase treated with ammonia or alkali or alkaline earth metal compounds to form a fertilizer or other phosphate salt.

    Abstract translation: 当粗制湿法磷酸溶剂萃取时,产生含有磷酸和少量溶剂的含水残液作为副产物。 将某些材料加入到残液中,以产生两相,一种水溶液和另一种溶剂。 分离各相,溶剂在溶剂萃取过程中循环再利用,水相用氨或碱金属或碱土金属化合物处理以形成肥料或其它磷酸盐。

    Pneumatic run flat tire
    22.
    发明授权
    Pneumatic run flat tire 有权
    气动式平轮胎

    公开(公告)号:US06422279B1

    公开(公告)日:2002-07-23

    申请号:US09709693

    申请日:2000-11-10

    CPC classification number: B60C15/0072 B60C17/0009 B60C17/0018 B60C17/0027

    Abstract: A run flat tire has a plurality of reinforcing wedges located in the tire sidewall with the hardness of each wedge generally diminishing in the radially inward direction of the sidewall. Since the bead filler is harder than the radial innermost wedge, the hardness at generally the top of the bead filler increases in the radial inward direction. The reinforcing wedges partially overlap each other and can generally have any configuration. The changing of hardness of the radial wedges results in a wedge sequence and thus a more even strain distribution throughout the tire sidewall. This strain distribution extends the run flat life of the tire and also provides a good balance with other tire performance parameters.

    Abstract translation: 防漏轮胎具有位于轮胎侧壁中的多个加强楔,每个楔的硬度通常在侧壁的径向向内的方向上减小。 由于珠填料比径向最内楔更硬,珠填料的顶部的硬度在径向向内的方向上增加。 加强楔部分重叠,通常可以具有任何构造。 径向楔的硬度变化导致楔形序列,从而导致整个轮胎侧壁更均匀的应变分布。 该应变分布延长了轮胎的运行平稳寿命,并且还提供了与其他轮胎性能参数的良好平衡。

    Pneumatic run flat tire
    23.
    发明授权
    Pneumatic run flat tire 有权
    气动式平轮胎

    公开(公告)号:US06182728B2

    公开(公告)日:2001-02-06

    申请号:US09326347

    申请日:1999-06-04

    CPC classification number: B60C15/0072 B60C17/0009 B60C17/0018 B60C17/0027

    Abstract: A run flat tire has a plurality of reinforcing wedges located in the tire sidewall with the hardness of each wedge generally diminishing in the radially inward direction of the sidewall. Since the bead filler is harder than the radial innermost wedge, the hardness at generally the top of the bead filler increases in the radial inward direction. The reinforcing wedges partially overlap each other and can generally have any configuration. The changing of hardness of the radial wedges results in a wedge sequence and thus a more even strain distribution throughout the tire sidewall. This strain distribution extends the run flat life of the tire and also provides a good balance with other tire performance parameters.

    Abstract translation: 防漏轮胎具有位于轮胎侧壁中的多个加强楔,每个楔的硬度通常在侧壁的径向向内的方向上减小。 由于珠填料比径向最内楔更硬,珠填料的顶部的硬度在径向向内的方向上增加。 加强楔部分重叠,通常可以具有任何构造。 径向楔的硬度变化导致楔形序列,从而导致整个轮胎侧壁更均匀的应变分布。 该应变分布延长了轮胎的运行平稳寿命,并且还提供了与其他轮胎性能参数的良好平衡。

    Tire pitch sequencing for reduced tire tread noise
    24.
    发明授权
    Tire pitch sequencing for reduced tire tread noise 失效
    用于减少轮胎胎面噪音的轮胎沥青排序

    公开(公告)号:US5314551A

    公开(公告)日:1994-05-24

    申请号:US792006

    申请日:1991-11-14

    CPC classification number: B60C11/0318

    Abstract: A tire with reduced tire noise includes a tread having a plurality of base pitches placed about the circumference of the tire in at least one circumferential section. According to one aspect of the invention, the base pitches have three different pitch lengths which form a pitch sequence around the circumference of the tire in each circumferential section. The base pitches are arranged such that the transitions between the base pitches with the smallest pitch lengths to the base pitches with the largest pitch lengths are between about 15% and 30% of the total number of transitions between base pitches of different lengths in the pitch sequence. Additionally, the smallest and largest base pitches each comprise between about 35% and 40% of the total number of base pitches around the circumference of the tire. The above factors, when coupled with no more than three consecutive base pitches having the same pitch length being arranged adjacent one another, provide a tread with reduced tire noise.

    Abstract translation: 具有降低的轮胎噪音的轮胎包括在至少一个圆周部分中具有围绕轮胎的圆周设置的多个基座间距的胎面。 根据本发明的一个方面,基座间距具有三个不同的间距长度,它们在每个圆周部分中形成围绕轮胎圆周的间距序列。 基座间距被布置成使得具有最小间距长度的基座间距与具有最大间距长度的基座间距之间的转变在间距中不同长度的基座间距之间的转换总数的大约15%到30%之间 序列。 此外,最小和最大的基座间距各自包括在轮胎圆周周围的基座间距总数的约35%至40%之间。 当上述因素与不超过三个具有相同节距的连续的基座间距相互相邻地布置时,提供具有降低的轮胎噪音的胎面。

    Purification of phosphoric acid by solvent extraction using hexanones
    28.
    发明授权
    Purification of phosphoric acid by solvent extraction using hexanones 失效
    使用己酮溶剂提取磷酸

    公开(公告)号:US4127640A

    公开(公告)日:1978-11-28

    申请号:US716371

    申请日:1976-08-23

    CPC classification number: C01B25/463 C01B25/2343

    Abstract: Wet process phosphoric acid may be purified by solvent extraction to produce a product of greater purity and concentration than has hitherto been attainable by employing an acyclic hexanone, preferably methyl isobutyl ketone as the solvent. Preferably the extraction of the acid into the ketone and the release into water are carried out in 2 actual or theoretical counter-current stages. Alternatively the release may be carried out into an aqueous solution of a base.

    Abstract translation: 可以通过溶剂萃取来纯化湿法磷酸,以产生比迄今为止通过使用无环己酮,优选甲基异丁基酮作为溶剂可获得的产物更高的纯度和浓度的产物。 优选将酸提取到酮中并释放到水中,在2个实际或理论的逆流阶段中进行。 或者,释放可以进行到碱的水溶液中。

    Artificial logs and log-making method and apparatus
    29.
    发明授权
    Artificial logs and log-making method and apparatus 失效
    人工日志和日志制作方法和装置

    公开(公告)号:US3973922A

    公开(公告)日:1976-08-10

    申请号:US464795

    申请日:1974-04-29

    CPC classification number: B30B11/24 B27N5/00 C10L5/44 Y02E50/10 Y02E50/30

    Abstract: Artificial logs are made by forcing a mixture of wood chips and a binder such as wax or paraffin through a tube by means of a feed screw. A section of the tube beyond the feed screw includes a short first portion of constant diameter which by itself has an insufficient length to provide enough friction to generate adequate pressure, followed by a second portion of variable cross-section, the cross-section of which is controlled by a predetermined force, so that friction and pressure in both sections may be readily controlled and limited to values which adequately form logs without the use of excessive power or the generation of excessive heat. By periodically varying the force on the adjustable section portion, a continuous length of log stock being formed may be severed into successive lengths without need for a subsequent sawing operation.

    Abstract translation: 通过使用进料螺杆将木屑和粘合剂如蜡或石蜡的混合物通过管强制制造人造原木。 超过进料螺杆的管的一部分包括恒定直径的短的第一部分,其本身具有不足的长度以提供足够的摩擦以产生足够的压力,随后是可变横截面的第二部分,其横截面 由预定的力控制,使得两部分中的摩擦和压力可以容易地被控制并且被限制到充分地形成原木的值而不使用过大的功率或产生过多的热量。 通过周期性地改变可调节部分上的力,形成的原木的连续长度可以被切断成连续的长度,而不需要随后的锯切操作。

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