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    Process for reducing oxygen content of oxidic mineral ore
    3.
    发明授权
    Process for reducing oxygen content of oxidic mineral ore 失效
    减少氧化矿石含氧量的方法

    公开(公告)号：US3661553A

    公开(公告)日：1972-05-09

    申请号：US3661553D

    申请日：1968-11-01

    Applicant: ALLIS CHALMERS MFG CO

    Inventor： FRANS ROBERT D

    IPC: C21B13/08 ,  C22B5/12 ,  C22B9/00

    CPC classification number: C21B13/08 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/136

    Abstract: A process is disclosed for heat-treating mineral ore by successively drying, preheating, and reducing particles of the ores to a lower state of oxidation. The particles are gathered into a first gas permeable body with the particles at rest relative to each other within the body and dried and preheated until hardened. The body is then disrupted and a tumbling movement is imparted to the particles while further heating with heated reducing gases to initiate at least preliminary reduction. The particles are regathered into a second gas permeable body with the particles at rest relative to each other within the body and fuel that has been reformed into a stream of reducing gases rich in hydrogen and/or carbon monoxide is passed through the second body of particles to further reduce the particles. The reducing gases that have passed through the second body of particles are divided into two branch streams with a first of the branch streams being delivered to and directed through the particles being tumbled to effect a preliminary reduction, after which this gas stream is made oxidizing and passed through the first body of particles to effectuate the preheating and drying thereof. The other branch stream of gases is first mixed with a fresh supply of the hydrogen and/or carbon monoxide rich gases and thereafter recycled through the second body of particles.

    Abstract translation: 公开了一种通过依次干燥，预热和还原矿石颗粒至较低的氧化态来对矿石进行热处理的方法。 颗粒聚集成第一气体可渗透体，其中颗粒在体内相对于彼此静止，并干燥并预热直到硬化。 然后破坏身体，并且在用加热的还原气体进一步加热的同时向颗粒施加滚动运动，以启动至少初步的还原。 颗粒被转移到第二气体可渗透体中，其中颗粒在体内相对于彼此静止，并且已经被重整成富含氢和/或一氧化碳的还原气体流的燃料通过第二体微粒 以进一步减少颗粒。 已经通过第二颗粒体的还原气体被分成两个分支流，其中第一个分支流被输送并引导通过这些颗粒被翻转以进行初步还原，然后将该气流氧化， 通过第一颗粒体以实现预热和干燥。 首先将另一个分支气流与新鲜供应的氢气和/或一氧化碳气体混合，然后通过第二体积的颗粒再循环。

    Traveling grate method for the recovery of oil from shale
    4.
    发明授权
    Traveling grate method for the recovery of oil from shale 失效
    用于从石油中回收油的行驶格式方法

    公开(公告)号：US3560368A

    公开(公告)日：1971-02-02

    申请号：US3560368D

    申请日：1968-06-05

    Applicant: ALLIS CHALMERS MFG CO

    Inventor： ROWLAND CHESTER A ,  FRANS ROBERT D

    IPC: C10G1/02 ,  C10G1/00

    CPC classification number: C10J3/002 ,  C10G1/02 ,  C10J3/36 ,  C10J3/74 ,  C10J3/84 ,  C10J2300/0909 ,  C10J2300/0946 ,  C10J2300/0956 ,  C10J2300/1253 ,  C10J2300/1606 ,  C10J2300/1823 ,  C10J2300/1869 ,  C10J2300/1884 ,  Y02P20/129

    Abstract: A METHOD IS DISCLOSED FOR RECOVERING OIL FROM OIL BEARING SHALE ROCK IN WHICH THE ROCK IS SCREENED TO PROVIDE THREE SIZE FRACTIONS, LARGE SIZE, INTERMEDIATE SIZE AND SMALL SIZE. THE LARGE SIZE NEED HAVE NO UPPER SIZE LIMIT BUT MAY, FOR EXAMPLE, BE SCREENED TO PLUS 1 INCH MINUS 1 1/2 INCH. THE INTERMEDIATE SIZE MAY BE PLUS 5/8 INCH MINUS 1 INCH; AND THE SMALL PLUS 1/4 INCH MINUS 5/8 INCH. SUCH SIZE FRACTIONS ARE DEPOSITED ON A TRAVELING GRATE IN A SEGREGATED BED WITH THE LARGE SIZE ON TOP, THE INTERMEDIATE SIZE ON THE BOTTOM AND THE SMALL SIZE THEREBETWEEN. THE TRAVELING GRATE CARRIES THIS BED THROUGH A PREHEATING ZONE WHERE MODERATELY HEATED GASES (FROM A RETORTING ZONE SUCH AS WILL BE DESCRIBED) PASS UPWARDLY THROUGH THE BED AND THEN THE BED PASSES THROUGH A RETORTING ZONE WHERE OIL IS EDUCTED FROM THE SHALE BY HIGHLY HEATED GASES PASSING DOWNWARD THROUGH THE BED. IN THE RETORTING ZONE THE BOTTOM LAYER OF INTERMEDIATE SIZE PARTICLES PREVENTS THE SMALLEST PARTICLES FALLING THROUGH OR PLUGGING HAS PASSAGES IN THE GRATE WHILE THE LARGEST AND MOST DIFFICULT TO PROCESS PARTICLES MAKE FIRST CONTACT WITH GASES THAT ARE THE HOTTEST AND CONTAIN THE LEAST AMOUNT OF EDUCTED OIL, FOR MAXIMUM TEMPERATURE AND MASS (I.E., OIL) TRANSFER THEREBETWEEN, AND THESE LARGEST PARTICLES SHEILD THE SMALLEST PARTICLES FROM THE HIGHEST TEMPERATURE OF THE GASES IN THE RETORTING ZONE TO PREVENT THE SMALLEST PARTICLES ADHERING TOGETHER IN A MANNER THAT WOULD DESTROY THE GAS PERMEABILITY OF THE BED ON THE GRATE. IN THE PREHEATING AND CONDENSING ZONE THE TOP LAYER OF THE LARGEST PARTICLES PROVIDES A BARRIER AGAINST FINE PARTICLES ESCAPING WITH THE GAS STREAM CONTAINING OIL MIST.

    Retorting oil shale including agglomerated fines
    6.
    发明授权
    Retorting oil shale including agglomerated fines 失效
    评估油砂，包括集体精美

    公开(公告)号：US3560369A

    公开(公告)日：1971-02-02

    申请号：US3560369D

    申请日：1968-06-05

    Applicant: ALLIS CHALMERS MFG CO

    Inventor： ROWLAND CHESTER A ,  FRANS ROBERT D

    IPC: C10G1/02

    CPC classification number: C10J3/002 ,  C10G1/02 ,  C10J3/36 ,  C10J3/74 ,  C10J3/84 ,  C10J2300/0909 ,  C10J2300/0946 ,  C10J2300/0956 ,  C10J2300/1253 ,  C10J2300/1606 ,  C10J2300/1823 ,  C10J2300/1869 ,  C10J2300/1884

    Abstract: A SYSTEM IS DISCLOSED FOR RECOVERING OIL FROM OIL BEARING SHALE ROCK IN WHICH THE ROCK IS SCREENED TO SEPARATE FINES FROM LARGER PARTICLES HAVING A DIMENSION OF AT LEAST ABOUT 1/4 INCH. THE SYSTEM INCLUDES A RETORTING ZONE IN WHICH HEATED GASES, REDUCING OR NEUTRAL, ARE PASSED THROUGH THE LARGER PARTICLES AND AGGLOMERATES OF THE FINES TO HEAT THESE PARTICLES AND AGGLOMERATES TO OIL EDUCING TEMPERATURE AND AFTER WHICH THE GASES, THEN CONTAINING EDUCTED OIL, ARE PASSED THROUGH A ZONE IN WHICH PARTICLES AND AGGLOMERATES ARE PREHEATED AND THE GASES COOLED TO CONDENSE THE OIL TO SMALL DROPLETS AND VAPOR IN THE GASES THE OIL IS SEPARATED FROM THE GASES AND INTO VARIOUS FRACTIONS. THE HEAVIEST FRACTION OF THE OIL, REPRESENTING AN AMOUNT IN A RANGE OF FROM ABOUT 5% TO 50% OF THE TOTAL OIL EDUCTED, ARE RECIRCULATED THROUGH THE SYSTEM BY USING SUCH OIL AS BINDER TO AGGLOMERATE THE FINES INTO AGGLOMERATES AT LEAST 1/4 INCH. THESE AGGLOMERATES MAY DBE ADVANTAGEOUSLY UTILIZED BY CHARGING THEM TO A TRAVELING GRATE APPARATUS WITH THE LARGER PARTICLES TO FORM A BED, WITH THE AGGLOMERATES FORMING AN INTERMEDIATE LAYER BETWEEN UPPER AND LOWER LAYERS OF THE LARGER PARTICLES. THE LARGER PARTICLES WILL, IN A PREHEATING-CONDENSING ZONE, TRAP AND PREVNET ESCAPE FROM THE BED, DUST AND DROPS OF HEAVY BINDER OIL (WHICH MAY ESCAPE FROM AGGLOMATES). WITH EITHER AN UPFLOW OR DOWNFLOW OF GAS IN THIS PREHEATING-CONDENSING ZONE, HEAVY BINDER OIL ATTEMPTING TO ESCAPE THE BED WILL ADHERE TO AND COAT PARTICLES IN THE UPPER OR LOWER LAYERS AND DUST ATTEMPTING TO ESCAPE THE BED WILL ADHERE TO THE LARGER PARTICLES COATED BY THE HEAVY BINDER OIL. THUS, BOTH THE HEAVY BINDER OIL AND DUST ATTEMPTING TO ESCAPE IN THIS PREHEATING-CONDENSING ZONE WILL BE TRAPPED IN THE BED. IN THE RETORTING ZONE SUCH HEAVY FRACTION BINDER OIL RETAINED IN THE BED WILL PYROLYZE TO PRODUCE FURTHER USEFUL LIGHTER OIL WHICH WILL LEAVE THE BED AS VAPOR, AND RESIDUAL COKE WHICH WILL REMAIN IN THE BED.

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